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openwrt/target/linux/ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch
Birger Koblitz fde8e2e035 ramips: add support for Asus RT-AC85P 
SoC:	MediaTek MT7621AT dual-core @ 880MHz
RAM:	256M (Winbond W632GG6KB-1)
FLASH:	128MB (Macronix MX30LF1G18AC-TI)
WiFi:	- 2.4GHz MediaTek MT7615N bgn
	- 5GHz MediaTek MT7615N nac
Switch: SoC integrated Gigabit Switch (4 x LAN, 1 x WAN)
USB:	1 x USB 3.1 (Gen 1)
BTN:	Reset, WPS
LED:	- Power (blue)
	- 5Ghz (blue)
	- 2.4GHz (blue)
	- Internet (blue)
	- 4x LAN (blue)
	(LAN/WAN leds are not controllable by GPIOs)
UART: 	UART is present as Pads marked J4 on the PCB.
	3.3V - TX - RX - GND / 57600-8N1
	3.3V is the square pad
MAC:	The MAC address on the router-label matches the MAC of
	the 2.4 GHz WiFi.
	LAN and WAN MAC are identical: MAC_LABEL+4
	5 GHz WiFi MAC: also MAC_LABEL+4

Installation
------------
Via U-Boot tftpd:
Switch on device, within 2s press reset button and keep pressed
until power LED starts blinking slowly.
Upload factory image via tftp put, the router's ip is 192.168.1.1
and expects the client on 192.168.1.75.

The images also work on the Asus RT-AC65P models as tested by Gabor.

Signed-off-by: Birger Koblitz <mail@birger-koblitz.de>
Tested-by: Gabor Varga <vargagab@gmail.com>
[fixed Asus -> ASUS in DTS]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
2019-09-20 11:36:27 +02:00

4438 lines
136 KiB
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Raw Blame History

From 0e1c4e3c97b83b4e7da65b1c56f0a7d40736ac53 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 27 Jul 2014 11:05:17 +0100
Subject: [PATCH 39/53] mtd: add mt7621 nand support
Signed-off-by: John Crispin <blogic@openwrt.org>
---
drivers/mtd/nand/Kconfig | 6 +
drivers/mtd/nand/Makefile | 1 +
drivers/mtd/nand/bmt.c | 750 ++++++++++++
drivers/mtd/nand/bmt.h | 80 ++
drivers/mtd/nand/dev-nand.c | 63 +
drivers/mtd/nand/mt6575_typedefs.h | 340 ++++++
drivers/mtd/nand/mtk_nand2.c | 2304 +++++++++++++++++++++++++++++++++++
drivers/mtd/nand/mtk_nand2.h | 452 +++++++
drivers/mtd/nand/nand_base.c | 6 +-
drivers/mtd/nand/nand_def.h | 123 ++
drivers/mtd/nand/nand_device_list.h | 55 +
drivers/mtd/nand/partition.h | 115 ++
13 files changed, 4311 insertions(+), 3 deletions(-)
create mode 100644 drivers/mtd/nand/bmt.c
create mode 100644 drivers/mtd/nand/bmt.h
create mode 100644 drivers/mtd/nand/dev-nand.c
create mode 100644 drivers/mtd/nand/mt6575_typedefs.h
create mode 100644 drivers/mtd/nand/mtk_nand2.c
create mode 100644 drivers/mtd/nand/mtk_nand2.h
create mode 100644 drivers/mtd/nand/nand_def.h
create mode 100644 drivers/mtd/nand/nand_device_list.h
create mode 100644 drivers/mtd/nand/partition.h
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -563,4 +563,10 @@ config MTD_NAND_MTK
Enables support for NAND controller on MTK SoCs.
This controller is found on mt27xx, mt81xx, mt65xx SoCs.
+config MTK_MTD_NAND
+ tristate "Support for MTK SoC NAND controller"
+ depends on SOC_MT7621
+ select MTD_NAND_IDS
+ select MTD_NAND_ECC
+
endif # MTD_NAND
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -60,6 +60,7 @@ obj-$(CONFIG_MTD_NAND_HISI504) +
obj-$(CONFIG_MTD_NAND_BRCMNAND) += brcmnand/
obj-$(CONFIG_MTD_NAND_QCOM) += qcom_nandc.o
obj-$(CONFIG_MTD_NAND_MTK) += mtk_nand.o mtk_ecc.o
+obj-$(CONFIG_MTK_MTD_NAND) += mtk_nand2.o bmt.o
nand-objs := nand_base.o nand_bbt.o nand_timings.o nand_ids.o
nand-objs += nand_amd.o
--- /dev/null
+++ b/drivers/mtd/nand/bmt.c
@@ -0,0 +1,750 @@
+#include "bmt.h"
+
+typedef struct
+{
+ char signature[3];
+ u8 version;
+ u8 bad_count; // bad block count in pool
+ u8 mapped_count; // mapped block count in pool
+ u8 checksum;
+ u8 reseverd[13];
+} phys_bmt_header;
+
+typedef struct
+{
+ phys_bmt_header header;
+ bmt_entry table[MAX_BMT_SIZE];
+} phys_bmt_struct;
+
+typedef struct
+{
+ char signature[3];
+} bmt_oob_data;
+
+static char MAIN_SIGNATURE[] = "BMT";
+static char OOB_SIGNATURE[] = "bmt";
+#define SIGNATURE_SIZE (3)
+
+#define MAX_DAT_SIZE 0x1000
+#define MAX_OOB_SIZE 0x80
+
+static struct mtd_info *mtd_bmt;
+static struct nand_chip *nand_chip_bmt;
+#define BLOCK_SIZE_BMT (1 << nand_chip_bmt->phys_erase_shift)
+#define PAGE_SIZE_BMT (1 << nand_chip_bmt->page_shift)
+
+#define OFFSET(block) ((block) * BLOCK_SIZE_BMT)
+#define PAGE_ADDR(block) ((block) * BLOCK_SIZE_BMT / PAGE_SIZE_BMT)
+
+/*********************************************************************
+* Flash is splited into 2 parts, system part is for normal system *
+* system usage, size is system_block_count, another is replace pool *
+* +-------------------------------------------------+ *
+* | system_block_count | bmt_block_count | *
+* +-------------------------------------------------+ *
+*********************************************************************/
+static u32 total_block_count; // block number in flash
+static u32 system_block_count;
+static int bmt_block_count; // bmt table size
+// static int bmt_count; // block used in bmt
+static int page_per_block; // page per count
+
+static u32 bmt_block_index; // bmt block index
+static bmt_struct bmt; // dynamic created global bmt table
+
+static u8 dat_buf[MAX_DAT_SIZE];
+static u8 oob_buf[MAX_OOB_SIZE];
+static bool pool_erased;
+
+/***************************************************************
+*
+* Interface adaptor for preloader/uboot/kernel
+* These interfaces operate on physical address, read/write
+* physical data.
+*
+***************************************************************/
+int nand_read_page_bmt(u32 page, u8 * dat, u8 * oob)
+{
+ return mtk_nand_exec_read_page(mtd_bmt, page, PAGE_SIZE_BMT, dat, oob);
+}
+
+bool nand_block_bad_bmt(u32 offset)
+{
+ return mtk_nand_block_bad_hw(mtd_bmt, offset);
+}
+
+bool nand_erase_bmt(u32 offset)
+{
+ int status;
+ if (offset < 0x20000)
+ {
+ MSG(INIT, "erase offset: 0x%x\n", offset);
+ }
+
+ status = mtk_nand_erase_hw(mtd_bmt, offset / PAGE_SIZE_BMT); // as nand_chip structure doesn't have a erase function defined
+ if (status & NAND_STATUS_FAIL)
+ return false;
+ else
+ return true;
+}
+
+int mark_block_bad_bmt(u32 offset)
+{
+ return mtk_nand_block_markbad_hw(mtd_bmt, offset); //mark_block_bad_hw(offset);
+}
+
+bool nand_write_page_bmt(u32 page, u8 * dat, u8 * oob)
+{
+ if (mtk_nand_exec_write_page(mtd_bmt, page, PAGE_SIZE_BMT, dat, oob))
+ return false;
+ else
+ return true;
+}
+
+/***************************************************************
+* *
+* static internal function *
+* *
+***************************************************************/
+static void dump_bmt_info(bmt_struct * bmt)
+{
+ int i;
+
+ MSG(INIT, "BMT v%d. total %d mapping:\n", bmt->version, bmt->mapped_count);
+ for (i = 0; i < bmt->mapped_count; i++)
+ {
+ MSG(INIT, "\t0x%x -> 0x%x\n", bmt->table[i].bad_index, bmt->table[i].mapped_index);
+ }
+}
+
+static bool match_bmt_signature(u8 * dat, u8 * oob)
+{
+
+ if (memcmp(dat + MAIN_SIGNATURE_OFFSET, MAIN_SIGNATURE, SIGNATURE_SIZE))
+ {
+ return false;
+ }
+
+ if (memcmp(oob + OOB_SIGNATURE_OFFSET, OOB_SIGNATURE, SIGNATURE_SIZE))
+ {
+ MSG(INIT, "main signature match, oob signature doesn't match, but ignore\n");
+ }
+ return true;
+}
+
+static u8 cal_bmt_checksum(phys_bmt_struct * phys_table, int bmt_size)
+{
+ int i;
+ u8 checksum = 0;
+ u8 *dat = (u8 *) phys_table;
+
+ checksum += phys_table->header.version;
+ checksum += phys_table->header.mapped_count;
+
+ dat += sizeof(phys_bmt_header);
+ for (i = 0; i < bmt_size * sizeof(bmt_entry); i++)
+ {
+ checksum += dat[i];
+ }
+
+ return checksum;
+}
+
+
+static int is_block_mapped(int index)
+{
+ int i;
+ for (i = 0; i < bmt.mapped_count; i++)
+ {
+ if (index == bmt.table[i].mapped_index)
+ return i;
+ }
+ return -1;
+}
+
+static bool is_page_used(u8 * dat, u8 * oob)
+{
+ return ((oob[OOB_INDEX_OFFSET] != 0xFF) || (oob[OOB_INDEX_OFFSET + 1] != 0xFF));
+}
+
+static bool valid_bmt_data(phys_bmt_struct * phys_table)
+{
+ int i;
+ u8 checksum = cal_bmt_checksum(phys_table, bmt_block_count);
+
+ // checksum correct?
+ if (phys_table->header.checksum != checksum)
+ {
+ MSG(INIT, "BMT Data checksum error: %x %x\n", phys_table->header.checksum, checksum);
+ return false;
+ }
+
+ MSG(INIT, "BMT Checksum is: 0x%x\n", phys_table->header.checksum);
+
+ // block index correct?
+ for (i = 0; i < phys_table->header.mapped_count; i++)
+ {
+ if (phys_table->table[i].bad_index >= total_block_count || phys_table->table[i].mapped_index >= total_block_count || phys_table->table[i].mapped_index < system_block_count)
+ {
+ MSG(INIT, "index error: bad_index: %d, mapped_index: %d\n", phys_table->table[i].bad_index, phys_table->table[i].mapped_index);
+ return false;
+ }
+ }
+
+ // pass check, valid bmt.
+ MSG(INIT, "Valid BMT, version v%d\n", phys_table->header.version);
+ return true;
+}
+
+static void fill_nand_bmt_buffer(bmt_struct * bmt, u8 * dat, u8 * oob)
+{
+ phys_bmt_struct phys_bmt;
+
+ dump_bmt_info(bmt);
+
+ // fill phys_bmt_struct structure with bmt_struct
+ memset(&phys_bmt, 0xFF, sizeof(phys_bmt));
+
+ memcpy(phys_bmt.header.signature, MAIN_SIGNATURE, SIGNATURE_SIZE);
+ phys_bmt.header.version = BMT_VERSION;
+ // phys_bmt.header.bad_count = bmt->bad_count;
+ phys_bmt.header.mapped_count = bmt->mapped_count;
+ memcpy(phys_bmt.table, bmt->table, sizeof(bmt_entry) * bmt_block_count);
+
+ phys_bmt.header.checksum = cal_bmt_checksum(&phys_bmt, bmt_block_count);
+
+ memcpy(dat + MAIN_SIGNATURE_OFFSET, &phys_bmt, sizeof(phys_bmt));
+ memcpy(oob + OOB_SIGNATURE_OFFSET, OOB_SIGNATURE, SIGNATURE_SIZE);
+}
+
+// return valid index if found BMT, else return 0
+static int load_bmt_data(int start, int pool_size)
+{
+ int bmt_index = start + pool_size - 1; // find from the end
+ phys_bmt_struct phys_table;
+ int i;
+
+ MSG(INIT, "[%s]: begin to search BMT from block 0x%x\n", __FUNCTION__, bmt_index);
+
+ for (bmt_index = start + pool_size - 1; bmt_index >= start; bmt_index--)
+ {
+ if (nand_block_bad_bmt(OFFSET(bmt_index)))
+ {
+ MSG(INIT, "Skip bad block: %d\n", bmt_index);
+ continue;
+ }
+
+ if (!nand_read_page_bmt(PAGE_ADDR(bmt_index), dat_buf, oob_buf))
+ {
+ MSG(INIT, "Error found when read block %d\n", bmt_index);
+ continue;
+ }
+
+ if (!match_bmt_signature(dat_buf, oob_buf))
+ {
+ continue;
+ }
+
+ MSG(INIT, "Match bmt signature @ block: 0x%x\n", bmt_index);
+
+ memcpy(&phys_table, dat_buf + MAIN_SIGNATURE_OFFSET, sizeof(phys_table));
+
+ if (!valid_bmt_data(&phys_table))
+ {
+ MSG(INIT, "BMT data is not correct %d\n", bmt_index);
+ continue;
+ } else
+ {
+ bmt.mapped_count = phys_table.header.mapped_count;
+ bmt.version = phys_table.header.version;
+ // bmt.bad_count = phys_table.header.bad_count;
+ memcpy(bmt.table, phys_table.table, bmt.mapped_count * sizeof(bmt_entry));
+
+ MSG(INIT, "bmt found at block: %d, mapped block: %d\n", bmt_index, bmt.mapped_count);
+
+ for (i = 0; i < bmt.mapped_count; i++)
+ {
+ if (!nand_block_bad_bmt(OFFSET(bmt.table[i].bad_index)))
+ {
+ MSG(INIT, "block 0x%x is not mark bad, should be power lost last time\n", bmt.table[i].bad_index);
+ mark_block_bad_bmt(OFFSET(bmt.table[i].bad_index));
+ }
+ }
+
+ return bmt_index;
+ }
+ }
+
+ MSG(INIT, "bmt block not found!\n");
+ return 0;
+}
+
+/*************************************************************************
+* Find an available block and erase. *
+* start_from_end: if true, find available block from end of flash. *
+* else, find from the beginning of the pool *
+* need_erase: if true, all unmapped blocks in the pool will be erased *
+*************************************************************************/
+static int find_available_block(bool start_from_end)
+{
+ int i; // , j;
+ int block = system_block_count;
+ int direction;
+ // int avail_index = 0;
+ MSG(INIT, "Try to find_available_block, pool_erase: %d\n", pool_erased);
+
+ // erase all un-mapped blocks in pool when finding avaliable block
+ if (!pool_erased)
+ {
+ MSG(INIT, "Erase all un-mapped blocks in pool\n");
+ for (i = 0; i < bmt_block_count; i++)
+ {
+ if (block == bmt_block_index)
+ {
+ MSG(INIT, "Skip bmt block 0x%x\n", block);
+ continue;
+ }
+
+ if (nand_block_bad_bmt(OFFSET(block + i)))
+ {
+ MSG(INIT, "Skip bad block 0x%x\n", block + i);
+ continue;
+ }
+//if(block==4095)
+//{
+// continue;
+//}
+
+ if (is_block_mapped(block + i) >= 0)
+ {
+ MSG(INIT, "Skip mapped block 0x%x\n", block + i);
+ continue;
+ }
+
+ if (!nand_erase_bmt(OFFSET(block + i)))
+ {
+ MSG(INIT, "Erase block 0x%x failed\n", block + i);
+ mark_block_bad_bmt(OFFSET(block + i));
+ }
+ }
+
+ pool_erased = 1;
+ }
+
+ if (start_from_end)
+ {
+ block = total_block_count - 1;
+ direction = -1;
+ } else
+ {
+ block = system_block_count;
+ direction = 1;
+ }
+
+ for (i = 0; i < bmt_block_count; i++, block += direction)
+ {
+ if (block == bmt_block_index)
+ {
+ MSG(INIT, "Skip bmt block 0x%x\n", block);
+ continue;
+ }
+
+ if (nand_block_bad_bmt(OFFSET(block)))
+ {
+ MSG(INIT, "Skip bad block 0x%x\n", block);
+ continue;
+ }
+
+ if (is_block_mapped(block) >= 0)
+ {
+ MSG(INIT, "Skip mapped block 0x%x\n", block);
+ continue;
+ }
+
+ MSG(INIT, "Find block 0x%x available\n", block);
+ return block;
+ }
+
+ return 0;
+}
+
+static unsigned short get_bad_index_from_oob(u8 * oob_buf)
+{
+ unsigned short index;
+ memcpy(&index, oob_buf + OOB_INDEX_OFFSET, OOB_INDEX_SIZE);
+
+ return index;
+}
+
+void set_bad_index_to_oob(u8 * oob, u16 index)
+{
+ memcpy(oob + OOB_INDEX_OFFSET, &index, sizeof(index));
+}
+
+static int migrate_from_bad(int offset, u8 * write_dat, u8 * write_oob)
+{
+ int page;
+ int error_block = offset / BLOCK_SIZE_BMT;
+ int error_page = (offset / PAGE_SIZE_BMT) % page_per_block;
+ int to_index;
+
+ memcpy(oob_buf, write_oob, MAX_OOB_SIZE);
+
+ to_index = find_available_block(false);
+
+ if (!to_index)
+ {
+ MSG(INIT, "Cannot find an available block for BMT\n");
+ return 0;
+ }
+
+ { // migrate error page first
+ MSG(INIT, "Write error page: 0x%x\n", error_page);
+ if (!write_dat)
+ {
+ nand_read_page_bmt(PAGE_ADDR(error_block) + error_page, dat_buf, NULL);
+ write_dat = dat_buf;
+ }
+ // memcpy(oob_buf, write_oob, MAX_OOB_SIZE);
+
+ if (error_block < system_block_count)
+ set_bad_index_to_oob(oob_buf, error_block); // if error_block is already a mapped block, original mapping index is in OOB.
+
+ if (!nand_write_page_bmt(PAGE_ADDR(to_index) + error_page, write_dat, oob_buf))
+ {
+ MSG(INIT, "Write to page 0x%x fail\n", PAGE_ADDR(to_index) + error_page);
+ mark_block_bad_bmt(to_index);
+ return migrate_from_bad(offset, write_dat, write_oob);
+ }
+ }
+
+ for (page = 0; page < page_per_block; page++)
+ {
+ if (page != error_page)
+ {
+ nand_read_page_bmt(PAGE_ADDR(error_block) + page, dat_buf, oob_buf);
+ if (is_page_used(dat_buf, oob_buf))
+ {
+ if (error_block < system_block_count)
+ {
+ set_bad_index_to_oob(oob_buf, error_block);
+ }
+ MSG(INIT, "\tmigrate page 0x%x to page 0x%x\n", PAGE_ADDR(error_block) + page, PAGE_ADDR(to_index) + page);
+ if (!nand_write_page_bmt(PAGE_ADDR(to_index) + page, dat_buf, oob_buf))
+ {
+ MSG(INIT, "Write to page 0x%x fail\n", PAGE_ADDR(to_index) + page);
+ mark_block_bad_bmt(to_index);
+ return migrate_from_bad(offset, write_dat, write_oob);
+ }
+ }
+ }
+ }
+
+ MSG(INIT, "Migrate from 0x%x to 0x%x done!\n", error_block, to_index);
+
+ return to_index;
+}
+
+static bool write_bmt_to_flash(u8 * dat, u8 * oob)
+{
+ bool need_erase = true;
+ MSG(INIT, "Try to write BMT\n");
+
+ if (bmt_block_index == 0)
+ {
+ // if we don't have index, we don't need to erase found block as it has been erased in find_available_block()
+ need_erase = false;
+ if (!(bmt_block_index = find_available_block(true)))
+ {
+ MSG(INIT, "Cannot find an available block for BMT\n");
+ return false;
+ }
+ }
+
+ MSG(INIT, "Find BMT block: 0x%x\n", bmt_block_index);
+
+ // write bmt to flash
+ if (need_erase)
+ {
+ if (!nand_erase_bmt(OFFSET(bmt_block_index)))
+ {
+ MSG(INIT, "BMT block erase fail, mark bad: 0x%x\n", bmt_block_index);
+ mark_block_bad_bmt(OFFSET(bmt_block_index));
+ // bmt.bad_count++;
+
+ bmt_block_index = 0;
+ return write_bmt_to_flash(dat, oob); // recursive call
+ }
+ }
+
+ if (!nand_write_page_bmt(PAGE_ADDR(bmt_block_index), dat, oob))
+ {
+ MSG(INIT, "Write BMT data fail, need to write again\n");
+ mark_block_bad_bmt(OFFSET(bmt_block_index));
+ // bmt.bad_count++;
+
+ bmt_block_index = 0;
+ return write_bmt_to_flash(dat, oob); // recursive call
+ }
+
+ MSG(INIT, "Write BMT data to block 0x%x success\n", bmt_block_index);
+ return true;
+}
+
+/*******************************************************************
+* Reconstruct bmt, called when found bmt info doesn't match bad
+* block info in flash.
+*
+* Return NULL for failure
+*******************************************************************/
+bmt_struct *reconstruct_bmt(bmt_struct * bmt)
+{
+ int i;
+ int index = system_block_count;
+ unsigned short bad_index;
+ int mapped;
+
+ // init everything in BMT struct
+ bmt->version = BMT_VERSION;
+ bmt->bad_count = 0;
+ bmt->mapped_count = 0;
+
+ memset(bmt->table, 0, bmt_block_count * sizeof(bmt_entry));
+
+ for (i = 0; i < bmt_block_count; i++, index++)
+ {
+ if (nand_block_bad_bmt(OFFSET(index)))
+ {
+ MSG(INIT, "Skip bad block: 0x%x\n", index);
+ // bmt->bad_count++;
+ continue;
+ }
+
+ MSG(INIT, "read page: 0x%x\n", PAGE_ADDR(index));
+ nand_read_page_bmt(PAGE_ADDR(index), dat_buf, oob_buf);
+ /* if (mtk_nand_read_page_hw(PAGE_ADDR(index), dat_buf))
+ {
+ MSG(INIT, "Error when read block %d\n", bmt_block_index);
+ continue;
+ } */
+
+ if ((bad_index = get_bad_index_from_oob(oob_buf)) >= system_block_count)
+ {
+ MSG(INIT, "get bad index: 0x%x\n", bad_index);
+ if (bad_index != 0xFFFF)
+ MSG(INIT, "Invalid bad index found in block 0x%x, bad index 0x%x\n", index, bad_index);
+ continue;
+ }
+
+ MSG(INIT, "Block 0x%x is mapped to bad block: 0x%x\n", index, bad_index);
+
+ if (!nand_block_bad_bmt(OFFSET(bad_index)))
+ {
+ MSG(INIT, "\tbut block 0x%x is not marked as bad, invalid mapping\n", bad_index);
+ continue; // no need to erase here, it will be erased later when trying to write BMT
+ }
+
+ if ((mapped = is_block_mapped(bad_index)) >= 0)
+ {
+ MSG(INIT, "bad block 0x%x is mapped to 0x%x, should be caused by power lost, replace with one\n", bmt->table[mapped].bad_index, bmt->table[mapped].mapped_index);
+ bmt->table[mapped].mapped_index = index; // use new one instead.
+ } else
+ {
+ // add mapping to BMT
+ bmt->table[bmt->mapped_count].bad_index = bad_index;
+ bmt->table[bmt->mapped_count].mapped_index = index;
+ bmt->mapped_count++;
+ }
+
+ MSG(INIT, "Add mapping: 0x%x -> 0x%x to BMT\n", bad_index, index);
+
+ }
+
+ MSG(INIT, "Scan replace pool done, mapped block: %d\n", bmt->mapped_count);
+ // dump_bmt_info(bmt);
+
+ // fill NAND BMT buffer
+ memset(oob_buf, 0xFF, sizeof(oob_buf));
+ fill_nand_bmt_buffer(bmt, dat_buf, oob_buf);
+
+ // write BMT back
+ if (!write_bmt_to_flash(dat_buf, oob_buf))
+ {
+ MSG(INIT, "TRAGEDY: cannot find a place to write BMT!!!!\n");
+ }
+
+ return bmt;
+}
+
+/*******************************************************************
+* [BMT Interface]
+*
+* Description:
+* Init bmt from nand. Reconstruct if not found or data error
+*
+* Parameter:
+* size: size of bmt and replace pool
+*
+* Return:
+* NULL for failure, and a bmt struct for success
+*******************************************************************/
+bmt_struct *init_bmt(struct nand_chip * chip, int size)
+{
+ struct mtk_nand_host *host;
+
+ if (size > 0 && size < MAX_BMT_SIZE)
+ {
+ MSG(INIT, "Init bmt table, size: %d\n", size);
+ bmt_block_count = size;
+ } else
+ {
+ MSG(INIT, "Invalid bmt table size: %d\n", size);
+ return NULL;
+ }
+ nand_chip_bmt = chip;
+ system_block_count = chip->chipsize >> chip->phys_erase_shift;
+ total_block_count = bmt_block_count + system_block_count;
+ page_per_block = BLOCK_SIZE_BMT / PAGE_SIZE_BMT;
+ host = (struct mtk_nand_host *)chip->priv;
+ mtd_bmt = host->mtd;
+
+ MSG(INIT, "mtd_bmt: %p, nand_chip_bmt: %p\n", mtd_bmt, nand_chip_bmt);
+ MSG(INIT, "bmt count: %d, system count: %d\n", bmt_block_count, system_block_count);
+
+ // set this flag, and unmapped block in pool will be erased.
+ pool_erased = 0;
+ memset(bmt.table, 0, size * sizeof(bmt_entry));
+ if ((bmt_block_index = load_bmt_data(system_block_count, size)))
+ {
+ MSG(INIT, "Load bmt data success @ block 0x%x\n", bmt_block_index);
+ dump_bmt_info(&bmt);
+ return &bmt;
+ } else
+ {
+ MSG(INIT, "Load bmt data fail, need re-construct!\n");
+#ifndef __UBOOT_NAND__ // BMT is not re-constructed in UBOOT.
+ if (reconstruct_bmt(&bmt))
+ return &bmt;
+ else
+#endif
+ return NULL;
+ }
+}
+
+/*******************************************************************
+* [BMT Interface]
+*
+* Description:
+* Update BMT.
+*
+* Parameter:
+* offset: update block/page offset.
+* reason: update reason, see update_reason_t for reason.
+* dat/oob: data and oob buffer for write fail.
+*
+* Return:
+* Return true for success, and false for failure.
+*******************************************************************/
+bool update_bmt(u32 offset, update_reason_t reason, u8 * dat, u8 * oob)
+{
+ int map_index;
+ int orig_bad_block = -1;
+ // int bmt_update_index;
+ int i;
+ int bad_index = offset / BLOCK_SIZE_BMT;
+
+#ifndef MTK_NAND_BMT
+ return false;
+#endif
+ if (reason == UPDATE_WRITE_FAIL)
+ {
+ MSG(INIT, "Write fail, need to migrate\n");
+ if (!(map_index = migrate_from_bad(offset, dat, oob)))
+ {
+ MSG(INIT, "migrate fail\n");
+ return false;
+ }
+ } else
+ {
+ if (!(map_index = find_available_block(false)))
+ {
+ MSG(INIT, "Cannot find block in pool\n");
+ return false;
+ }
+ }
+
+ // now let's update BMT
+ if (bad_index >= system_block_count) // mapped block become bad, find original bad block
+ {
+ for (i = 0; i < bmt_block_count; i++)
+ {
+ if (bmt.table[i].mapped_index == bad_index)
+ {
+ orig_bad_block = bmt.table[i].bad_index;
+ break;
+ }
+ }
+ // bmt.bad_count++;
+ MSG(INIT, "Mapped block becomes bad, orig bad block is 0x%x\n", orig_bad_block);
+
+ bmt.table[i].mapped_index = map_index;
+ } else
+ {
+ bmt.table[bmt.mapped_count].mapped_index = map_index;
+ bmt.table[bmt.mapped_count].bad_index = bad_index;
+ bmt.mapped_count++;
+ }
+
+ memset(oob_buf, 0xFF, sizeof(oob_buf));
+ fill_nand_bmt_buffer(&bmt, dat_buf, oob_buf);
+ if (!write_bmt_to_flash(dat_buf, oob_buf))
+ return false;
+
+ mark_block_bad_bmt(offset);
+
+ return true;
+}
+
+/*******************************************************************
+* [BMT Interface]
+*
+* Description:
+* Given an block index, return mapped index if it's mapped, else
+* return given index.
+*
+* Parameter:
+* index: given an block index. This value cannot exceed
+* system_block_count.
+*
+* Return NULL for failure
+*******************************************************************/
+u16 get_mapping_block_index(int index)
+{
+ int i;
+#ifndef MTK_NAND_BMT
+ return index;
+#endif
+ if (index > system_block_count)
+ {
+ return index;
+ }
+
+ for (i = 0; i < bmt.mapped_count; i++)
+ {
+ if (bmt.table[i].bad_index == index)
+ {
+ return bmt.table[i].mapped_index;
+ }
+ }
+
+ return index;
+}
+#ifdef __KERNEL_NAND__
+EXPORT_SYMBOL_GPL(init_bmt);
+EXPORT_SYMBOL_GPL(update_bmt);
+EXPORT_SYMBOL_GPL(get_mapping_block_index);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("MediaTek");
+MODULE_DESCRIPTION("Bad Block mapping management for MediaTek NAND Flash Driver");
+#endif
--- /dev/null
+++ b/drivers/mtd/nand/bmt.h
@@ -0,0 +1,80 @@
+#ifndef __BMT_H__
+#define __BMT_H__
+
+#include "nand_def.h"
+
+#if defined(__PRELOADER_NAND__)
+
+#include "nand.h"
+
+#elif defined(__UBOOT_NAND__)
+
+#include <linux/mtd/nand.h>
+#include "mtk_nand2.h"
+
+#elif defined(__KERNEL_NAND__)
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/rawnand.h>
+#include <linux/module.h>
+#include "mtk_nand2.h"
+
+#endif
+
+
+#define MAX_BMT_SIZE (0x80)
+#define BMT_VERSION (1) // initial version
+
+#define MAIN_SIGNATURE_OFFSET (0)
+#define OOB_SIGNATURE_OFFSET (1)
+#define OOB_INDEX_OFFSET (29)
+#define OOB_INDEX_SIZE (2)
+#define FAKE_INDEX (0xAAAA)
+
+typedef struct _bmt_entry_
+{
+ u16 bad_index; // bad block index
+ u16 mapped_index; // mapping block index in the replace pool
+} bmt_entry;
+
+typedef enum
+{
+ UPDATE_ERASE_FAIL,
+ UPDATE_WRITE_FAIL,
+ UPDATE_UNMAPPED_BLOCK,
+ UPDATE_REASON_COUNT,
+} update_reason_t;
+
+typedef struct
+{
+ bmt_entry table[MAX_BMT_SIZE];
+ u8 version;
+ u8 mapped_count; // mapped block count in pool
+ u8 bad_count; // bad block count in pool. Not used in V1
+} bmt_struct;
+
+/***************************************************************
+* *
+* Interface BMT need to use *
+* *
+***************************************************************/
+extern bool mtk_nand_exec_read_page(struct mtd_info *mtd, u32 row, u32 page_size, u8 * dat, u8 * oob);
+extern int mtk_nand_block_bad_hw(struct mtd_info *mtd, loff_t ofs);
+extern int mtk_nand_erase_hw(struct mtd_info *mtd, int page);
+extern int mtk_nand_block_markbad_hw(struct mtd_info *mtd, loff_t ofs);
+extern int mtk_nand_exec_write_page(struct mtd_info *mtd, u32 row, u32 page_size, u8 * dat, u8 * oob);
+
+
+/***************************************************************
+* *
+* Different function interface for preloader/uboot/kernel *
+* *
+***************************************************************/
+void set_bad_index_to_oob(u8 * oob, u16 index);
+
+
+bmt_struct *init_bmt(struct nand_chip *nand, int size);
+bool update_bmt(u32 offset, update_reason_t reason, u8 * dat, u8 * oob);
+unsigned short get_mapping_block_index(int index);
+
+#endif // #ifndef __BMT_H__
--- /dev/null
+++ b/drivers/mtd/nand/dev-nand.c
@@ -0,0 +1,63 @@
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#include "mt6575_typedefs.h"
+
+#define RALINK_NAND_CTRL_BASE 0xBE003000
+#define NFI_base RALINK_NAND_CTRL_BASE
+#define RALINK_NANDECC_CTRL_BASE 0xBE003800
+#define NFIECC_base RALINK_NANDECC_CTRL_BASE
+#define MT7621_NFI_IRQ_ID SURFBOARDINT_NAND
+#define MT7621_NFIECC_IRQ_ID SURFBOARDINT_NAND_ECC
+
+#define SURFBOARDINT_NAND 22
+#define SURFBOARDINT_NAND_ECC 23
+
+static struct resource MT7621_resource_nand[] = {
+ {
+ .start = NFI_base,
+ .end = NFI_base + 0x1A0,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = NFIECC_base,
+ .end = NFIECC_base + 0x150,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = MT7621_NFI_IRQ_ID,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = MT7621_NFIECC_IRQ_ID,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device MT7621_nand_dev = {
+ .name = "MT7621-NAND",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(MT7621_resource_nand),
+ .resource = MT7621_resource_nand,
+ .dev = {
+ .platform_data = &mt7621_nand_hw,
+ },
+};
+
+
+int __init mtk_nand_register(void)
+{
+
+ int retval = 0;
+
+ retval = platform_device_register(&MT7621_nand_dev);
+ if (retval != 0) {
+ printk(KERN_ERR "register nand device fail\n");
+ return retval;
+ }
+
+
+ return retval;
+}
+arch_initcall(mtk_nand_register);
--- /dev/null
+++ b/drivers/mtd/nand/mt6575_typedefs.h
@@ -0,0 +1,340 @@
+/* Copyright Statement:
+ *
+ * This software/firmware and related documentation ("MediaTek Software") are
+ * protected under relevant copyright laws. The information contained herein
+ * is confidential and proprietary to MediaTek Inc. and/or its licensors.
+ * Without the prior written permission of MediaTek inc. and/or its licensors,
+ * any reproduction, modification, use or disclosure of MediaTek Software,
+ * and information contained herein, in whole or in part, shall be strictly prohibited.
+ */
+/* MediaTek Inc. (C) 2010. All rights reserved.
+ *
+ * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
+ * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
+ * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
+ * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
+ * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
+ * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
+ * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
+ * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
+ * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
+ * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
+ * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
+ * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
+ * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
+ * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
+ * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
+ * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
+ *
+ * The following software/firmware and/or related documentation ("MediaTek Software")
+ * have been modified by MediaTek Inc. All revisions are subject to any receiver's
+ * applicable license agreements with MediaTek Inc.
+ */
+
+/*****************************************************************************
+* Copyright Statement:
+* --------------------
+* This software is protected by Copyright and the information contained
+* herein is confidential. The software may not be copied and the information
+* contained herein may not be used or disclosed except with the written
+* permission of MediaTek Inc. (C) 2008
+*
+* BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
+* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
+* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
+* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
+* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
+* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
+* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
+* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
+* NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
+* SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
+*
+* BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
+* LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
+* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
+* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
+* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
+*
+* THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
+* WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
+* LAWS PRINCIPLES. ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
+* RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
+* THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
+*
+*****************************************************************************/
+
+#ifndef _MT6575_TYPEDEFS_H
+#define _MT6575_TYPEDEFS_H
+
+#if defined (__KERNEL_NAND__)
+#include <linux/bug.h>
+#else
+#define true 1
+#define false 0
+#define bool u8
+#endif
+
+// ---------------------------------------------------------------------------
+// Basic Type Definitions
+// ---------------------------------------------------------------------------
+
+typedef volatile unsigned char *P_kal_uint8;
+typedef volatile unsigned short *P_kal_uint16;
+typedef volatile unsigned int *P_kal_uint32;
+
+typedef long LONG;
+typedef unsigned char UBYTE;
+typedef short SHORT;
+
+typedef signed char kal_int8;
+typedef signed short kal_int16;
+typedef signed int kal_int32;
+typedef long long kal_int64;
+typedef unsigned char kal_uint8;
+typedef unsigned short kal_uint16;
+typedef unsigned int kal_uint32;
+typedef unsigned long long kal_uint64;
+typedef char kal_char;
+
+typedef unsigned int *UINT32P;
+typedef volatile unsigned short *UINT16P;
+typedef volatile unsigned char *UINT8P;
+typedef unsigned char *U8P;
+
+typedef volatile unsigned char *P_U8;
+typedef volatile signed char *P_S8;
+typedef volatile unsigned short *P_U16;
+typedef volatile signed short *P_S16;
+typedef volatile unsigned int *P_U32;
+typedef volatile signed int *P_S32;
+typedef unsigned long long *P_U64;
+typedef signed long long *P_S64;
+
+typedef unsigned char U8;
+typedef signed char S8;
+typedef unsigned short U16;
+typedef signed short S16;
+typedef unsigned int U32;
+typedef signed int S32;
+typedef unsigned long long U64;
+typedef signed long long S64;
+//typedef unsigned char bool;
+
+typedef unsigned char UINT8;
+typedef unsigned short UINT16;
+typedef unsigned int UINT32;
+typedef unsigned short USHORT;
+typedef signed char INT8;
+typedef signed short INT16;
+typedef signed int INT32;
+typedef unsigned int DWORD;
+typedef void VOID;
+typedef unsigned char BYTE;
+typedef float FLOAT;
+
+typedef char *LPCSTR;
+typedef short *LPWSTR;
+
+
+// ---------------------------------------------------------------------------
+// Constants
+// ---------------------------------------------------------------------------
+
+#define IMPORT EXTERN
+#ifndef __cplusplus
+ #define EXTERN extern
+#else
+ #define EXTERN extern "C"
+#endif
+#define LOCAL static
+#define GLOBAL
+#define EXPORT GLOBAL
+
+#define EQ ==
+#define NEQ !=
+#define AND &&
+#define OR ||
+#define XOR(A,B) ((!(A) AND (B)) OR ((A) AND !(B)))
+
+#ifndef FALSE
+ #define FALSE (0)
+#endif
+
+#ifndef TRUE
+ #define TRUE (1)
+#endif
+
+#ifndef NULL
+ #define NULL (0)
+#endif
+
+//enum boolean {false, true};
+enum {RX, TX, NONE};
+
+#ifndef BOOL
+typedef unsigned char BOOL;
+#endif
+
+typedef enum {
+ KAL_FALSE = 0,
+ KAL_TRUE = 1,
+} kal_bool;
+
+
+// ---------------------------------------------------------------------------
+// Type Casting
+// ---------------------------------------------------------------------------
+
+#define AS_INT32(x) (*(INT32 *)((void*)x))
+#define AS_INT16(x) (*(INT16 *)((void*)x))
+#define AS_INT8(x) (*(INT8 *)((void*)x))
+
+#define AS_UINT32(x) (*(UINT32 *)((void*)x))
+#define AS_UINT16(x) (*(UINT16 *)((void*)x))
+#define AS_UINT8(x) (*(UINT8 *)((void*)x))
+
+
+// ---------------------------------------------------------------------------
+// Register Manipulations
+// ---------------------------------------------------------------------------
+
+#define READ_REGISTER_UINT32(reg) \
+ (*(volatile UINT32 * const)(reg))
+
+#define WRITE_REGISTER_UINT32(reg, val) \
+ (*(volatile UINT32 * const)(reg)) = (val)
+
+#define READ_REGISTER_UINT16(reg) \
+ (*(volatile UINT16 * const)(reg))
+
+#define WRITE_REGISTER_UINT16(reg, val) \
+ (*(volatile UINT16 * const)(reg)) = (val)
+
+#define READ_REGISTER_UINT8(reg) \
+ (*(volatile UINT8 * const)(reg))
+
+#define WRITE_REGISTER_UINT8(reg, val) \
+ (*(volatile UINT8 * const)(reg)) = (val)
+
+#define INREG8(x) READ_REGISTER_UINT8((UINT8*)((void*)(x)))
+#define OUTREG8(x, y) WRITE_REGISTER_UINT8((UINT8*)((void*)(x)), (UINT8)(y))
+#define SETREG8(x, y) OUTREG8(x, INREG8(x)|(y))
+#define CLRREG8(x, y) OUTREG8(x, INREG8(x)&~(y))
+#define MASKREG8(x, y, z) OUTREG8(x, (INREG8(x)&~(y))|(z))
+
+#define INREG16(x) READ_REGISTER_UINT16((UINT16*)((void*)(x)))
+#define OUTREG16(x, y) WRITE_REGISTER_UINT16((UINT16*)((void*)(x)),(UINT16)(y))
+#define SETREG16(x, y) OUTREG16(x, INREG16(x)|(y))
+#define CLRREG16(x, y) OUTREG16(x, INREG16(x)&~(y))
+#define MASKREG16(x, y, z) OUTREG16(x, (INREG16(x)&~(y))|(z))
+
+#define INREG32(x) READ_REGISTER_UINT32((UINT32*)((void*)(x)))
+#define OUTREG32(x, y) WRITE_REGISTER_UINT32((UINT32*)((void*)(x)), (UINT32)(y))
+#define SETREG32(x, y) OUTREG32(x, INREG32(x)|(y))
+#define CLRREG32(x, y) OUTREG32(x, INREG32(x)&~(y))
+#define MASKREG32(x, y, z) OUTREG32(x, (INREG32(x)&~(y))|(z))
+
+
+#define DRV_Reg8(addr) INREG8(addr)
+#define DRV_WriteReg8(addr, data) OUTREG8(addr, data)
+#define DRV_SetReg8(addr, data) SETREG8(addr, data)
+#define DRV_ClrReg8(addr, data) CLRREG8(addr, data)
+
+#define DRV_Reg16(addr) INREG16(addr)
+#define DRV_WriteReg16(addr, data) OUTREG16(addr, data)
+#define DRV_SetReg16(addr, data) SETREG16(addr, data)
+#define DRV_ClrReg16(addr, data) CLRREG16(addr, data)
+
+#define DRV_Reg32(addr) INREG32(addr)
+#define DRV_WriteReg32(addr, data) OUTREG32(addr, data)
+#define DRV_SetReg32(addr, data) SETREG32(addr, data)
+#define DRV_ClrReg32(addr, data) CLRREG32(addr, data)
+
+// !!! DEPRECATED, WILL BE REMOVED LATER !!!
+#define DRV_Reg(addr) DRV_Reg16(addr)
+#define DRV_WriteReg(addr, data) DRV_WriteReg16(addr, data)
+#define DRV_SetReg(addr, data) DRV_SetReg16(addr, data)
+#define DRV_ClrReg(addr, data) DRV_ClrReg16(addr, data)
+
+
+// ---------------------------------------------------------------------------
+// Compiler Time Deduction Macros
+// ---------------------------------------------------------------------------
+
+#define _MASK_OFFSET_1(x, n) ((x) & 0x1) ? (n) :
+#define _MASK_OFFSET_2(x, n) _MASK_OFFSET_1((x), (n)) _MASK_OFFSET_1((x) >> 1, (n) + 1)
+#define _MASK_OFFSET_4(x, n) _MASK_OFFSET_2((x), (n)) _MASK_OFFSET_2((x) >> 2, (n) + 2)
+#define _MASK_OFFSET_8(x, n) _MASK_OFFSET_4((x), (n)) _MASK_OFFSET_4((x) >> 4, (n) + 4)
+#define _MASK_OFFSET_16(x, n) _MASK_OFFSET_8((x), (n)) _MASK_OFFSET_8((x) >> 8, (n) + 8)
+#define _MASK_OFFSET_32(x, n) _MASK_OFFSET_16((x), (n)) _MASK_OFFSET_16((x) >> 16, (n) + 16)
+
+#define MASK_OFFSET_ERROR (0xFFFFFFFF)
+
+#define MASK_OFFSET(x) (_MASK_OFFSET_32(x, 0) MASK_OFFSET_ERROR)
+
+
+// ---------------------------------------------------------------------------
+// Assertions
+// ---------------------------------------------------------------------------
+
+#ifndef ASSERT
+ #define ASSERT(expr) BUG_ON(!(expr))
+#endif
+
+#ifndef NOT_IMPLEMENTED
+ #define NOT_IMPLEMENTED() BUG_ON(1)
+#endif
+
+#define STATIC_ASSERT(pred) STATIC_ASSERT_X(pred, __LINE__)
+#define STATIC_ASSERT_X(pred, line) STATIC_ASSERT_XX(pred, line)
+#define STATIC_ASSERT_XX(pred, line) \
+ extern char assertion_failed_at_##line[(pred) ? 1 : -1]
+
+// ---------------------------------------------------------------------------
+// Resolve Compiler Warnings
+// ---------------------------------------------------------------------------
+
+#define NOT_REFERENCED(x) { (x) = (x); }
+
+
+// ---------------------------------------------------------------------------
+// Utilities
+// ---------------------------------------------------------------------------
+
+#define MAXIMUM(A,B) (((A)>(B))?(A):(B))
+#define MINIMUM(A,B) (((A)<(B))?(A):(B))
+
+#define ARY_SIZE(x) (sizeof((x)) / sizeof((x[0])))
+#define DVT_DELAYMACRO(u4Num) \
+{ \
+ UINT32 u4Count = 0 ; \
+ for (u4Count = 0; u4Count < u4Num; u4Count++ ); \
+} \
+
+#define A68351B 0
+#define B68351B 1
+#define B68351D 2
+#define B68351E 3
+#define UNKNOWN_IC_VERSION 0xFF
+
+/* NAND driver */
+struct mtk_nand_host_hw {
+ unsigned int nfi_bus_width; /* NFI_BUS_WIDTH */
+ unsigned int nfi_access_timing; /* NFI_ACCESS_TIMING */
+ unsigned int nfi_cs_num; /* NFI_CS_NUM */
+ unsigned int nand_sec_size; /* NAND_SECTOR_SIZE */
+ unsigned int nand_sec_shift; /* NAND_SECTOR_SHIFT */
+ unsigned int nand_ecc_size;
+ unsigned int nand_ecc_bytes;
+ unsigned int nand_ecc_mode;
+};
+extern struct mtk_nand_host_hw mt7621_nand_hw;
+extern unsigned int CFG_BLOCKSIZE;
+
+#endif // _MT6575_TYPEDEFS_H
+
--- /dev/null
+++ b/drivers/mtd/nand/mtk_nand2.c
@@ -0,0 +1,2345 @@
+/******************************************************************************
+* mtk_nand2.c - MTK NAND Flash Device Driver
+ *
+* Copyright 2009-2012 MediaTek Co.,Ltd.
+ *
+* DESCRIPTION:
+* This file provid the other drivers nand relative functions
+ *
+* modification history
+* ----------------------------------------
+* v3.0, 11 Feb 2010, mtk
+* ----------------------------------------
+******************************************************************************/
+#include "nand_def.h"
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/wait.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/rawnand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/dma-mapping.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/proc_fs.h>
+#include <linux/time.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/cacheflush.h>
+#include <asm/uaccess.h>
+#include <linux/miscdevice.h>
+#include "mtk_nand2.h"
+#include "nand_device_list.h"
+
+#include "bmt.h"
+#include "partition.h"
+
+unsigned int CFG_BLOCKSIZE;
+
+static int shift_on_bbt = 0;
+int mtk_nand_read_oob_hw(struct mtd_info *mtd, struct nand_chip *chip, int page);
+
+static const char * const probe_types[] = { "cmdlinepart", "ofpart", NULL };
+
+#define NAND_CMD_STATUS_MULTI 0x71
+
+void show_stack(struct task_struct *tsk, unsigned long *sp);
+extern void mt_irq_set_sens(unsigned int irq, unsigned int sens);
+extern void mt_irq_set_polarity(unsigned int irq,unsigned int polarity);
+
+struct mtk_nand_host mtk_nand_host; /* include mtd_info and nand_chip structs */
+struct mtk_nand_host_hw mt7621_nand_hw = {
+ .nfi_bus_width = 8,
+ .nfi_access_timing = NFI_DEFAULT_ACCESS_TIMING,
+ .nfi_cs_num = NFI_CS_NUM,
+ .nand_sec_size = 512,
+ .nand_sec_shift = 9,
+ .nand_ecc_size = 2048,
+ .nand_ecc_bytes = 32,
+ .nand_ecc_mode = NAND_ECC_HW,
+};
+
+
+/*******************************************************************************
+ * Gloable Varible Definition
+ *******************************************************************************/
+
+#define NFI_ISSUE_COMMAND(cmd, col_addr, row_addr, col_num, row_num) \
+ do { \
+ DRV_WriteReg(NFI_CMD_REG16,cmd);\
+ while (DRV_Reg32(NFI_STA_REG32) & STA_CMD_STATE);\
+ DRV_WriteReg32(NFI_COLADDR_REG32, col_addr);\
+ DRV_WriteReg32(NFI_ROWADDR_REG32, row_addr);\
+ DRV_WriteReg(NFI_ADDRNOB_REG16, col_num | (row_num<<ADDR_ROW_NOB_SHIFT));\
+ while (DRV_Reg32(NFI_STA_REG32) & STA_ADDR_STATE);\
+ }while(0);
+
+//-------------------------------------------------------------------------------
+static struct NAND_CMD g_kCMD;
+static u32 g_u4ChipVer;
+bool g_bInitDone;
+static bool g_bcmdstatus;
+static u32 g_value = 0;
+static int g_page_size;
+
+BOOL g_bHwEcc = true;
+
+
+extern void nand_release_device(struct mtd_info *mtd);
+extern int nand_get_device(struct nand_chip *chip, struct mtd_info *mtd, int new_state);
+
+#if defined(MTK_NAND_BMT)
+static bmt_struct *g_bmt;
+#endif
+struct mtk_nand_host *host;
+extern struct mtd_partition g_pasStatic_Partition[];
+int part_num = NUM_PARTITIONS;
+int manu_id;
+int dev_id;
+
+/* this constant was taken from linux/nand/nand.h v 3.14
+ * in later versions it seems it was removed in order to save a bit of space
+ */
+#define NAND_MAX_OOBSIZE 774
+static u8 local_oob_buf[NAND_MAX_OOBSIZE];
+
+static u8 nand_badblock_offset = 0;
+
+static void nand_bbt_set(struct mtd_info *mtd, int page, int flag)
+{
+ struct nand_chip *this = mtd->priv;
+ int block;
+
+ block = (int)(page >> (this->bbt_erase_shift - this->page_shift - 1));
+ this->bbt[block >> 3] &= ~(0x03 << (block & 0x6));
+ this->bbt[block >> 3] |= (flag & 0x3) << (block & 0x6);
+}
+
+static int nand_bbt_get(struct mtd_info *mtd, int page)
+{
+ struct nand_chip *this = mtd->priv;
+ int block;
+
+ block = (int)(page >> (this->bbt_erase_shift - this->page_shift - 1));
+ return (this->bbt[block >> 3] >> (block & 0x06)) & 0x03;
+}
+
+void nand_enable_clock(void)
+{
+ //enable_clock(MT65XX_PDN_PERI_NFI, "NAND");
+}
+
+void nand_disable_clock(void)
+{
+ //disable_clock(MT65XX_PDN_PERI_NFI, "NAND");
+}
+
+struct nand_ecclayout {
+ __u32 eccbytes;
+ __u32 eccpos[MTD_MAX_ECCPOS_ENTRIES_LARGE];
+ __u32 oobavail;
+ struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES_LARGE];
+};
+
+static struct nand_ecclayout *layout;
+
+static struct nand_ecclayout nand_oob_16 = {
+ .eccbytes = 8,
+ .eccpos = {8, 9, 10, 11, 12, 13, 14, 15},
+ .oobfree = {{1, 6}, {0, 0}}
+};
+
+struct nand_ecclayout nand_oob_64 = {
+ .eccbytes = 32,
+ .eccpos = {32, 33, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63},
+ .oobfree = {{1, 7}, {9, 7}, {17, 7}, {25, 6}, {0, 0}}
+};
+
+struct nand_ecclayout nand_oob_128 = {
+ .eccbytes = 64,
+ .eccpos = {
+ 64, 65, 66, 67, 68, 69, 70, 71,
+ 72, 73, 74, 75, 76, 77, 78, 79,
+ 80, 81, 82, 83, 84, 85, 86, 86,
+ 88, 89, 90, 91, 92, 93, 94, 95,
+ 96, 97, 98, 99, 100, 101, 102, 103,
+ 104, 105, 106, 107, 108, 109, 110, 111,
+ 112, 113, 114, 115, 116, 117, 118, 119,
+ 120, 121, 122, 123, 124, 125, 126, 127},
+ .oobfree = {{1, 7}, {9, 7}, {17, 7}, {25, 7}, {33, 7}, {41, 7}, {49, 7}, {57, 6}}
+};
+
+flashdev_info devinfo;
+
+void dump_nfi(void)
+{
+}
+
+void dump_ecc(void)
+{
+}
+
+u32
+nand_virt_to_phys_add(u32 va)
+{
+ u32 pageOffset = (va & (PAGE_SIZE - 1));
+ pgd_t *pgd;
+ pmd_t *pmd;
+ pte_t *pte;
+ u32 pa;
+
+ if (virt_addr_valid(va))
+ return __virt_to_phys(va);
+
+ if (NULL == current) {
+ printk(KERN_ERR "[nand_virt_to_phys_add] ERROR ,current is NULL! \n");
+ return 0;
+ }
+
+ if (NULL == current->mm) {
+ printk(KERN_ERR "[nand_virt_to_phys_add] ERROR current->mm is NULL! tgid=0x%x, name=%s \n", current->tgid, current->comm);
+ return 0;
+ }
+
+ pgd = pgd_offset(current->mm, va); /* what is tsk->mm */
+ if (pgd_none(*pgd) || pgd_bad(*pgd)) {
+ printk(KERN_ERR "[nand_virt_to_phys_add] ERROR, va=0x%x, pgd invalid! \n", va);
+ return 0;
+ }
+
+ pmd = pmd_offset((pud_t *)pgd, va);
+ if (pmd_none(*pmd) || pmd_bad(*pmd)) {
+ printk(KERN_ERR "[nand_virt_to_phys_add] ERROR, va=0x%x, pmd invalid! \n", va);
+ return 0;
+ }
+
+ pte = pte_offset_map(pmd, va);
+ if (pte_present(*pte)) {
+ pa = (pte_val(*pte) & (PAGE_MASK)) | pageOffset;
+ return pa;
+ }
+
+ printk(KERN_ERR "[nand_virt_to_phys_add] ERROR va=0x%x, pte invalid! \n", va);
+ return 0;
+}
+EXPORT_SYMBOL(nand_virt_to_phys_add);
+
+bool
+get_device_info(u16 id, u32 ext_id, flashdev_info * pdevinfo)
+{
+ u32 index;
+ for (index = 0; gen_FlashTable[index].id != 0; index++) {
+ if (id == gen_FlashTable[index].id && ext_id == gen_FlashTable[index].ext_id) {
+ pdevinfo->id = gen_FlashTable[index].id;
+ pdevinfo->ext_id = gen_FlashTable[index].ext_id;
+ pdevinfo->blocksize = gen_FlashTable[index].blocksize;
+ pdevinfo->addr_cycle = gen_FlashTable[index].addr_cycle;
+ pdevinfo->iowidth = gen_FlashTable[index].iowidth;
+ pdevinfo->timmingsetting = gen_FlashTable[index].timmingsetting;
+ pdevinfo->advancedmode = gen_FlashTable[index].advancedmode;
+ pdevinfo->pagesize = gen_FlashTable[index].pagesize;
+ pdevinfo->sparesize = gen_FlashTable[index].sparesize;
+ pdevinfo->totalsize = gen_FlashTable[index].totalsize;
+ memcpy(pdevinfo->devciename, gen_FlashTable[index].devciename, sizeof(pdevinfo->devciename));
+ printk(KERN_INFO "Device found in MTK table, ID: %x, EXT_ID: %x\n", id, ext_id);
+
+ goto find;
+ }
+ }
+
+find:
+ if (0 == pdevinfo->id) {
+ printk(KERN_INFO "Device not found, ID: %x\n", id);
+ return false;
+ } else {
+ return true;
+ }
+}
+
+static void
+ECC_Config(struct mtk_nand_host_hw *hw,u32 ecc_bit)
+{
+ u32 u4ENCODESize;
+ u32 u4DECODESize;
+ u32 ecc_bit_cfg = ECC_CNFG_ECC4;
+
+ switch(ecc_bit){
+ case 4:
+ ecc_bit_cfg = ECC_CNFG_ECC4;
+ break;
+ case 8:
+ ecc_bit_cfg = ECC_CNFG_ECC8;
+ break;
+ case 10:
+ ecc_bit_cfg = ECC_CNFG_ECC10;
+ break;
+ case 12:
+ ecc_bit_cfg = ECC_CNFG_ECC12;
+ break;
+ default:
+ break;
+ }
+ DRV_WriteReg16(ECC_DECCON_REG16, DEC_DE);
+ do {
+ } while (!DRV_Reg16(ECC_DECIDLE_REG16));
+
+ DRV_WriteReg16(ECC_ENCCON_REG16, ENC_DE);
+ do {
+ } while (!DRV_Reg32(ECC_ENCIDLE_REG32));
+
+ /* setup FDM register base */
+ DRV_WriteReg32(ECC_FDMADDR_REG32, NFI_FDM0L_REG32);
+
+ /* Sector + FDM */
+ u4ENCODESize = (hw->nand_sec_size + 8) << 3;
+ /* Sector + FDM + YAFFS2 meta data bits */
+ u4DECODESize = ((hw->nand_sec_size + 8) << 3) + ecc_bit * 13;
+
+ /* configure ECC decoder && encoder */
+ DRV_WriteReg32(ECC_DECCNFG_REG32, ecc_bit_cfg | DEC_CNFG_NFI | DEC_CNFG_EMPTY_EN | (u4DECODESize << DEC_CNFG_CODE_SHIFT));
+
+ DRV_WriteReg32(ECC_ENCCNFG_REG32, ecc_bit_cfg | ENC_CNFG_NFI | (u4ENCODESize << ENC_CNFG_MSG_SHIFT));
+ NFI_SET_REG32(ECC_DECCNFG_REG32, DEC_CNFG_EL);
+}
+
+static void
+ECC_Decode_Start(void)
+{
+ while (!(DRV_Reg16(ECC_DECIDLE_REG16) & DEC_IDLE))
+ ;
+ DRV_WriteReg16(ECC_DECCON_REG16, DEC_EN);
+}
+
+static void
+ECC_Decode_End(void)
+{
+ while (!(DRV_Reg16(ECC_DECIDLE_REG16) & DEC_IDLE))
+ ;
+ DRV_WriteReg16(ECC_DECCON_REG16, DEC_DE);
+}
+
+static void
+ECC_Encode_Start(void)
+{
+ while (!(DRV_Reg32(ECC_ENCIDLE_REG32) & ENC_IDLE))
+ ;
+ mb();
+ DRV_WriteReg16(ECC_ENCCON_REG16, ENC_EN);
+}
+
+static void
+ECC_Encode_End(void)
+{
+ /* wait for device returning idle */
+ while (!(DRV_Reg32(ECC_ENCIDLE_REG32) & ENC_IDLE)) ;
+ mb();
+ DRV_WriteReg16(ECC_ENCCON_REG16, ENC_DE);
+}
+
+static bool
+mtk_nand_check_bch_error(struct mtd_info *mtd, u8 * pDataBuf, u32 u4SecIndex, u32 u4PageAddr)
+{
+ bool bRet = true;
+ u16 u2SectorDoneMask = 1 << u4SecIndex;
+ u32 u4ErrorNumDebug, i, u4ErrNum;
+ u32 timeout = 0xFFFF;
+ // int el;
+ u32 au4ErrBitLoc[6];
+ u32 u4ErrByteLoc, u4BitOffset;
+ u32 u4ErrBitLoc1th, u4ErrBitLoc2nd;
+
+ //4 // Wait for Decode Done
+ while (0 == (u2SectorDoneMask & DRV_Reg16(ECC_DECDONE_REG16))) {
+ timeout--;
+ if (0 == timeout)
+ return false;
+ }
+ /* We will manually correct the error bits in the last sector, not all the sectors of the page! */
+ memset(au4ErrBitLoc, 0x0, sizeof(au4ErrBitLoc));
+ u4ErrorNumDebug = DRV_Reg32(ECC_DECENUM_REG32);
+ u4ErrNum = DRV_Reg32(ECC_DECENUM_REG32) >> (u4SecIndex << 2);
+ u4ErrNum &= 0xF;
+
+ if (u4ErrNum) {
+ if (0xF == u4ErrNum) {
+ mtd->ecc_stats.failed++;
+ bRet = false;
+ printk(KERN_ERR"mtk_nand: UnCorrectable at PageAddr=%d\n", u4PageAddr);
+ } else {
+ for (i = 0; i < ((u4ErrNum + 1) >> 1); ++i) {
+ au4ErrBitLoc[i] = DRV_Reg32(ECC_DECEL0_REG32 + i);
+ u4ErrBitLoc1th = au4ErrBitLoc[i] & 0x1FFF;
+ if (u4ErrBitLoc1th < 0x1000) {
+ u4ErrByteLoc = u4ErrBitLoc1th / 8;
+ u4BitOffset = u4ErrBitLoc1th % 8;
+ pDataBuf[u4ErrByteLoc] = pDataBuf[u4ErrByteLoc] ^ (1 << u4BitOffset);
+ mtd->ecc_stats.corrected++;
+ } else {
+ mtd->ecc_stats.failed++;
+ }
+ u4ErrBitLoc2nd = (au4ErrBitLoc[i] >> 16) & 0x1FFF;
+ if (0 != u4ErrBitLoc2nd) {
+ if (u4ErrBitLoc2nd < 0x1000) {
+ u4ErrByteLoc = u4ErrBitLoc2nd / 8;
+ u4BitOffset = u4ErrBitLoc2nd % 8;
+ pDataBuf[u4ErrByteLoc] = pDataBuf[u4ErrByteLoc] ^ (1 << u4BitOffset);
+ mtd->ecc_stats.corrected++;
+ } else {
+ mtd->ecc_stats.failed++;
+ //printk(KERN_ERR"UnCorrectable High ErrLoc=%d\n", au4ErrBitLoc[i]);
+ }
+ }
+ }
+ }
+ if (0 == (DRV_Reg16(ECC_DECFER_REG16) & (1 << u4SecIndex)))
+ bRet = false;
+ }
+ return bRet;
+}
+
+static bool
+mtk_nand_RFIFOValidSize(u16 u2Size)
+{
+ u32 timeout = 0xFFFF;
+ while (FIFO_RD_REMAIN(DRV_Reg16(NFI_FIFOSTA_REG16)) < u2Size) {
+ timeout--;
+ if (0 == timeout)
+ return false;
+ }
+ return true;
+}
+
+static bool
+mtk_nand_WFIFOValidSize(u16 u2Size)
+{
+ u32 timeout = 0xFFFF;
+
+ while (FIFO_WR_REMAIN(DRV_Reg16(NFI_FIFOSTA_REG16)) > u2Size) {
+ timeout--;
+ if (0 == timeout)
+ return false;
+ }
+ return true;
+}
+
+static bool
+mtk_nand_status_ready(u32 u4Status)
+{
+ u32 timeout = 0xFFFF;
+
+ while ((DRV_Reg32(NFI_STA_REG32) & u4Status) != 0) {
+ timeout--;
+ if (0 == timeout)
+ return false;
+ }
+ return true;
+}
+
+static bool
+mtk_nand_reset(void)
+{
+ int timeout = 0xFFFF;
+ if (DRV_Reg16(NFI_MASTERSTA_REG16)) {
+ mb();
+ DRV_WriteReg16(NFI_CON_REG16, CON_FIFO_FLUSH | CON_NFI_RST);
+ while (DRV_Reg16(NFI_MASTERSTA_REG16)) {
+ timeout--;
+ if (!timeout)
+ MSG(INIT, "Wait for NFI_MASTERSTA timeout\n");
+ }
+ }
+ /* issue reset operation */
+ mb();
+ DRV_WriteReg16(NFI_CON_REG16, CON_FIFO_FLUSH | CON_NFI_RST);
+
+ return mtk_nand_status_ready(STA_NFI_FSM_MASK | STA_NAND_BUSY) && mtk_nand_RFIFOValidSize(0) && mtk_nand_WFIFOValidSize(0);
+}
+
+static void
+mtk_nand_set_mode(u16 u2OpMode)
+{
+ u16 u2Mode = DRV_Reg16(NFI_CNFG_REG16);
+ u2Mode &= ~CNFG_OP_MODE_MASK;
+ u2Mode |= u2OpMode;
+ DRV_WriteReg16(NFI_CNFG_REG16, u2Mode);
+}
+
+static void
+mtk_nand_set_autoformat(bool bEnable)
+{
+ if (bEnable)
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_AUTO_FMT_EN);
+ else
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_AUTO_FMT_EN);
+}
+
+static void
+mtk_nand_configure_fdm(u16 u2FDMSize)
+{
+ NFI_CLN_REG16(NFI_PAGEFMT_REG16, PAGEFMT_FDM_MASK | PAGEFMT_FDM_ECC_MASK);
+ NFI_SET_REG16(NFI_PAGEFMT_REG16, u2FDMSize << PAGEFMT_FDM_SHIFT);
+ NFI_SET_REG16(NFI_PAGEFMT_REG16, u2FDMSize << PAGEFMT_FDM_ECC_SHIFT);
+}
+
+static void
+mtk_nand_configure_lock(void)
+{
+ u32 u4WriteColNOB = 2;
+ u32 u4WriteRowNOB = 3;
+ u32 u4EraseColNOB = 0;
+ u32 u4EraseRowNOB = 3;
+ DRV_WriteReg16(NFI_LOCKANOB_REG16,
+ (u4WriteColNOB << PROG_CADD_NOB_SHIFT) | (u4WriteRowNOB << PROG_RADD_NOB_SHIFT) | (u4EraseColNOB << ERASE_CADD_NOB_SHIFT) | (u4EraseRowNOB << ERASE_RADD_NOB_SHIFT));
+
+ if (CHIPVER_ECO_1 == g_u4ChipVer) {
+ int i;
+ for (i = 0; i < 16; ++i) {
+ DRV_WriteReg32(NFI_LOCK00ADD_REG32 + (i << 1), 0xFFFFFFFF);
+ DRV_WriteReg32(NFI_LOCK00FMT_REG32 + (i << 1), 0xFFFFFFFF);
+ }
+ //DRV_WriteReg16(NFI_LOCKANOB_REG16, 0x0);
+ DRV_WriteReg32(NFI_LOCKCON_REG32, 0xFFFFFFFF);
+ DRV_WriteReg16(NFI_LOCK_REG16, NFI_LOCK_ON);
+ }
+}
+
+static bool
+mtk_nand_pio_ready(void)
+{
+ int count = 0;
+ while (!(DRV_Reg16(NFI_PIO_DIRDY_REG16) & 1)) {
+ count++;
+ if (count > 0xffff) {
+ printk("PIO_DIRDY timeout\n");
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static bool
+mtk_nand_set_command(u16 command)
+{
+ mb();
+ DRV_WriteReg16(NFI_CMD_REG16, command);
+ return mtk_nand_status_ready(STA_CMD_STATE);
+}
+
+static bool
+mtk_nand_set_address(u32 u4ColAddr, u32 u4RowAddr, u16 u2ColNOB, u16 u2RowNOB)
+{
+ mb();
+ DRV_WriteReg32(NFI_COLADDR_REG32, u4ColAddr);
+ DRV_WriteReg32(NFI_ROWADDR_REG32, u4RowAddr);
+ DRV_WriteReg16(NFI_ADDRNOB_REG16, u2ColNOB | (u2RowNOB << ADDR_ROW_NOB_SHIFT));
+ return mtk_nand_status_ready(STA_ADDR_STATE);
+}
+
+static void mtk_nfc_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
+{
+ if (ctrl & NAND_ALE) {
+ mtk_nand_set_address(dat, 0, 1, 0);
+ } else if (ctrl & NAND_CLE) {
+ mtk_nand_reset();
+ mtk_nand_set_mode(0x6000);
+ mtk_nand_set_command(dat);
+ }
+}
+
+static bool
+mtk_nand_check_RW_count(u16 u2WriteSize)
+{
+ u32 timeout = 0xFFFF;
+ u16 u2SecNum = u2WriteSize >> 9;
+
+ while (ADDRCNTR_CNTR(DRV_Reg16(NFI_ADDRCNTR_REG16)) < u2SecNum) {
+ timeout--;
+ if (0 == timeout) {
+ printk(KERN_INFO "[%s] timeout\n", __FUNCTION__);
+ return false;
+ }
+ }
+ return true;
+}
+
+static bool
+mtk_nand_ready_for_read(struct nand_chip *nand, u32 u4RowAddr, u32 u4ColAddr, bool full, u8 * buf)
+{
+ /* Reset NFI HW internal state machine and flush NFI in/out FIFO */
+ bool bRet = false;
+ u16 sec_num = 1 << (nand->page_shift - 9);
+ u32 col_addr = u4ColAddr;
+ u32 colnob = 2, rownob = devinfo.addr_cycle - 2;
+ if (nand->options & NAND_BUSWIDTH_16)
+ col_addr /= 2;
+
+ if (!mtk_nand_reset())
+ goto cleanup;
+ if (g_bHwEcc) {
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ } else {
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ }
+
+ mtk_nand_set_mode(CNFG_OP_READ);
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_READ_EN);
+ DRV_WriteReg16(NFI_CON_REG16, sec_num << CON_NFI_SEC_SHIFT);
+
+ if (full) {
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_AHB);
+
+ if (g_bHwEcc)
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ else
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ } else {
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_AHB);
+ }
+
+ mtk_nand_set_autoformat(full);
+ if (full)
+ if (g_bHwEcc)
+ ECC_Decode_Start();
+ if (!mtk_nand_set_command(NAND_CMD_READ0))
+ goto cleanup;
+ if (!mtk_nand_set_address(col_addr, u4RowAddr, colnob, rownob))
+ goto cleanup;
+ if (!mtk_nand_set_command(NAND_CMD_READSTART))
+ goto cleanup;
+ if (!mtk_nand_status_ready(STA_NAND_BUSY))
+ goto cleanup;
+
+ bRet = true;
+
+cleanup:
+ return bRet;
+}
+
+static bool
+mtk_nand_ready_for_write(struct nand_chip *nand, u32 u4RowAddr, u32 col_addr, bool full, u8 * buf)
+{
+ bool bRet = false;
+ u32 sec_num = 1 << (nand->page_shift - 9);
+ u32 colnob = 2, rownob = devinfo.addr_cycle - 2;
+ if (nand->options & NAND_BUSWIDTH_16)
+ col_addr /= 2;
+
+ /* Reset NFI HW internal state machine and flush NFI in/out FIFO */
+ if (!mtk_nand_reset())
+ return false;
+
+ mtk_nand_set_mode(CNFG_OP_PRGM);
+
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_READ_EN);
+
+ DRV_WriteReg16(NFI_CON_REG16, sec_num << CON_NFI_SEC_SHIFT);
+
+ if (full) {
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_AHB);
+ if (g_bHwEcc)
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ else
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ } else {
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_AHB);
+ }
+
+ mtk_nand_set_autoformat(full);
+
+ if (full)
+ if (g_bHwEcc)
+ ECC_Encode_Start();
+
+ if (!mtk_nand_set_command(NAND_CMD_SEQIN))
+ goto cleanup;
+ //1 FIXED ME: For Any Kind of AddrCycle
+ if (!mtk_nand_set_address(col_addr, u4RowAddr, colnob, rownob))
+ goto cleanup;
+
+ if (!mtk_nand_status_ready(STA_NAND_BUSY))
+ goto cleanup;
+
+ bRet = true;
+
+cleanup:
+ return bRet;
+}
+
+static bool
+mtk_nand_check_dececc_done(u32 u4SecNum)
+{
+ u32 timeout, dec_mask;
+
+ timeout = 0xffff;
+ dec_mask = (1 << u4SecNum) - 1;
+ while ((dec_mask != DRV_Reg(ECC_DECDONE_REG16)) && timeout > 0)
+ timeout--;
+ if (timeout == 0) {
+ MSG(VERIFY, "ECC_DECDONE: timeout\n");
+ return false;
+ }
+ return true;
+}
+
+static bool
+mtk_nand_mcu_read_data(u8 * buf, u32 length)
+{
+ int timeout = 0xffff;
+ u32 i;
+ u32 *buf32 = (u32 *) buf;
+ if ((u32) buf % 4 || length % 4)
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_BYTE_RW);
+ else
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_BYTE_RW);
+
+ //DRV_WriteReg32(NFI_STRADDR_REG32, 0);
+ mb();
+ NFI_SET_REG16(NFI_CON_REG16, CON_NFI_BRD);
+
+ if ((u32) buf % 4 || length % 4) {
+ for (i = 0; (i < (length)) && (timeout > 0);) {
+ if (DRV_Reg16(NFI_PIO_DIRDY_REG16) & 1) {
+ *buf++ = (u8) DRV_Reg32(NFI_DATAR_REG32);
+ i++;
+ } else {
+ timeout--;
+ }
+ if (0 == timeout) {
+ printk(KERN_ERR "[%s] timeout\n", __FUNCTION__);
+ dump_nfi();
+ return false;
+ }
+ }
+ } else {
+ for (i = 0; (i < (length >> 2)) && (timeout > 0);) {
+ if (DRV_Reg16(NFI_PIO_DIRDY_REG16) & 1) {
+ *buf32++ = DRV_Reg32(NFI_DATAR_REG32);
+ i++;
+ } else {
+ timeout--;
+ }
+ if (0 == timeout) {
+ printk(KERN_ERR "[%s] timeout\n", __FUNCTION__);
+ dump_nfi();
+ return false;
+ }
+ }
+ }
+ return true;
+}
+
+static bool
+mtk_nand_read_page_data(struct mtd_info *mtd, u8 * pDataBuf, u32 u4Size)
+{
+ return mtk_nand_mcu_read_data(pDataBuf, u4Size);
+}
+
+static bool
+mtk_nand_mcu_write_data(struct mtd_info *mtd, const u8 * buf, u32 length)
+{
+ u32 timeout = 0xFFFF;
+ u32 i;
+ u32 *pBuf32;
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_BYTE_RW);
+ mb();
+ NFI_SET_REG16(NFI_CON_REG16, CON_NFI_BWR);
+ pBuf32 = (u32 *) buf;
+
+ if ((u32) buf % 4 || length % 4)
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_BYTE_RW);
+ else
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_BYTE_RW);
+
+ if ((u32) buf % 4 || length % 4) {
+ for (i = 0; (i < (length)) && (timeout > 0);) {
+ if (DRV_Reg16(NFI_PIO_DIRDY_REG16) & 1) {
+ DRV_WriteReg32(NFI_DATAW_REG32, *buf++);
+ i++;
+ } else {
+ timeout--;
+ }
+ if (0 == timeout) {
+ printk(KERN_ERR "[%s] timeout\n", __FUNCTION__);
+ dump_nfi();
+ return false;
+ }
+ }
+ } else {
+ for (i = 0; (i < (length >> 2)) && (timeout > 0);) {
+ if (DRV_Reg16(NFI_PIO_DIRDY_REG16) & 1) {
+ DRV_WriteReg32(NFI_DATAW_REG32, *pBuf32++);
+ i++;
+ } else {
+ timeout--;
+ }
+ if (0 == timeout) {
+ printk(KERN_ERR "[%s] timeout\n", __FUNCTION__);
+ dump_nfi();
+ return false;
+ }
+ }
+ }
+
+ return true;
+}
+
+static bool
+mtk_nand_write_page_data(struct mtd_info *mtd, u8 * buf, u32 size)
+{
+ return mtk_nand_mcu_write_data(mtd, buf, size);
+}
+
+static void
+mtk_nand_read_fdm_data(u8 * pDataBuf, u32 u4SecNum)
+{
+ u32 i;
+ u32 *pBuf32 = (u32 *) pDataBuf;
+
+ if (pBuf32) {
+ for (i = 0; i < u4SecNum; ++i) {
+ *pBuf32++ = DRV_Reg32(NFI_FDM0L_REG32 + (i << 1));
+ *pBuf32++ = DRV_Reg32(NFI_FDM0M_REG32 + (i << 1));
+ }
+ }
+}
+
+static u8 fdm_buf[64];
+static void
+mtk_nand_write_fdm_data(struct nand_chip *chip, u8 * pDataBuf, u32 u4SecNum)
+{
+ u32 i, j;
+ u8 checksum = 0;
+ bool empty = true;
+ struct nand_oobfree *free_entry;
+ u32 *pBuf32;
+
+ memcpy(fdm_buf, pDataBuf, u4SecNum * 8);
+
+ free_entry = layout->oobfree;
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free_entry[i].length; i++) {
+ for (j = 0; j < free_entry[i].length; j++) {
+ if (pDataBuf[free_entry[i].offset + j] != 0xFF)
+ empty = false;
+ checksum ^= pDataBuf[free_entry[i].offset + j];
+ }
+ }
+
+ if (!empty) {
+ fdm_buf[free_entry[i - 1].offset + free_entry[i - 1].length] = checksum;
+ }
+
+ pBuf32 = (u32 *) fdm_buf;
+ for (i = 0; i < u4SecNum; ++i) {
+ DRV_WriteReg32(NFI_FDM0L_REG32 + (i << 1), *pBuf32++);
+ DRV_WriteReg32(NFI_FDM0M_REG32 + (i << 1), *pBuf32++);
+ }
+}
+
+static void
+mtk_nand_stop_read(void)
+{
+ NFI_CLN_REG16(NFI_CON_REG16, CON_NFI_BRD);
+ mtk_nand_reset();
+ if (g_bHwEcc)
+ ECC_Decode_End();
+ DRV_WriteReg16(NFI_INTR_EN_REG16, 0);
+}
+
+static void
+mtk_nand_stop_write(void)
+{
+ NFI_CLN_REG16(NFI_CON_REG16, CON_NFI_BWR);
+ if (g_bHwEcc)
+ ECC_Encode_End();
+ DRV_WriteReg16(NFI_INTR_EN_REG16, 0);
+}
+
+bool
+mtk_nand_exec_read_page(struct mtd_info *mtd, u32 u4RowAddr, u32 u4PageSize, u8 * pPageBuf, u8 * pFDMBuf)
+{
+ u8 *buf;
+ bool bRet = true;
+ struct nand_chip *nand = mtd->priv;
+ u32 u4SecNum = u4PageSize >> 9;
+
+ buf = pPageBuf;
+ if (mtk_nand_ready_for_read(nand, u4RowAddr, 0, true, buf)) {
+ int j;
+ for (j = 0 ; j < u4SecNum; j++) {
+ if (!mtk_nand_read_page_data(mtd, buf+j*512, 512))
+ bRet = false;
+ if(g_bHwEcc && !mtk_nand_check_dececc_done(j+1))
+ bRet = false;
+ if(g_bHwEcc && !mtk_nand_check_bch_error(mtd, buf+j*512, j, u4RowAddr))
+ bRet = false;
+ }
+ if (!mtk_nand_status_ready(STA_NAND_BUSY))
+ bRet = false;
+
+ mtk_nand_read_fdm_data(pFDMBuf, u4SecNum);
+ mtk_nand_stop_read();
+ }
+
+ return bRet;
+}
+
+int
+mtk_nand_exec_write_page(struct mtd_info *mtd, u32 u4RowAddr, u32 u4PageSize, u8 * pPageBuf, u8 * pFDMBuf)
+{
+ struct nand_chip *chip = mtd->priv;
+ u32 u4SecNum = u4PageSize >> 9;
+ u8 *buf;
+ u8 status;
+
+ MSG(WRITE, "mtk_nand_exec_write_page, page: 0x%x\n", u4RowAddr);
+
+ buf = pPageBuf;
+
+ if (mtk_nand_ready_for_write(chip, u4RowAddr, 0, true, buf)) {
+ mtk_nand_write_fdm_data(chip, pFDMBuf, u4SecNum);
+ (void)mtk_nand_write_page_data(mtd, buf, u4PageSize);
+ (void)mtk_nand_check_RW_count(u4PageSize);
+ mtk_nand_stop_write();
+ (void)mtk_nand_set_command(NAND_CMD_PAGEPROG);
+ while (DRV_Reg32(NFI_STA_REG32) & STA_NAND_BUSY) ;
+ }
+
+ status = chip->waitfunc(mtd, chip);
+ if (status & NAND_STATUS_FAIL)
+ return -EIO;
+ return 0;
+}
+
+static int
+get_start_end_block(struct mtd_info *mtd, int block, int *start_blk, int *end_blk)
+{
+ struct nand_chip *chip = mtd->priv;
+ int i;
+
+ *start_blk = 0;
+ for (i = 0; i <= part_num; i++)
+ {
+ if (i == part_num)
+ {
+ // try the last reset partition
+ *end_blk = (chip->chipsize >> chip->phys_erase_shift) - 1;
+ if (*start_blk <= *end_blk)
+ {
+ if ((block >= *start_blk) && (block <= *end_blk))
+ break;
+ }
+ }
+ // skip All partition entry
+ else if (g_pasStatic_Partition[i].size == MTDPART_SIZ_FULL)
+ {
+ continue;
+ }
+ *end_blk = *start_blk + (g_pasStatic_Partition[i].size >> chip->phys_erase_shift) - 1;
+ if ((block >= *start_blk) && (block <= *end_blk))
+ break;
+ *start_blk = *end_blk + 1;
+ }
+ if (*start_blk > *end_blk)
+ {
+ return -1;
+ }
+ return 0;
+}
+
+static int
+block_remap(struct mtd_info *mtd, int block)
+{
+ struct nand_chip *chip = mtd->priv;
+ int start_blk, end_blk;
+ int j, block_offset;
+ int bad_block = 0;
+
+ if (chip->bbt == NULL) {
+ printk("ERROR!! no bbt table for block_remap\n");
+ return -1;
+ }
+
+ if (get_start_end_block(mtd, block, &start_blk, &end_blk) < 0) {
+ printk("ERROR!! can not find start_blk and end_blk\n");
+ return -1;
+ }
+
+ block_offset = block - start_blk;
+ for (j = start_blk; j <= end_blk;j++) {
+ if (((chip->bbt[j >> 2] >> ((j<<1) & 0x6)) & 0x3) == 0x0) {
+ if (!block_offset)
+ break;
+ block_offset--;
+ } else {
+ bad_block++;
+ }
+ }
+ if (j <= end_blk) {
+ return j;
+ } else {
+ // remap to the bad block
+ for (j = end_blk; bad_block > 0; j--)
+ {
+ if (((chip->bbt[j >> 2] >> ((j<<1) & 0x6)) & 0x3) != 0x0)
+ {
+ bad_block--;
+ if (bad_block <= block_offset)
+ return j;
+ }
+ }
+ }
+
+ printk("Error!! block_remap error\n");
+ return -1;
+}
+
+int
+check_block_remap(struct mtd_info *mtd, int block)
+{
+ if (shift_on_bbt)
+ return block_remap(mtd, block);
+ else
+ return block;
+}
+EXPORT_SYMBOL(check_block_remap);
+
+
+static int
+write_next_on_fail(struct mtd_info *mtd, char *write_buf, int page, int * to_blk)
+{
+ struct nand_chip *chip = mtd->priv;
+ int i, j, to_page = 0, first_page;
+ char *buf, *oob;
+ int start_blk = 0, end_blk;
+ int mapped_block;
+ int page_per_block_bit = chip->phys_erase_shift - chip->page_shift;
+ int block = page >> page_per_block_bit;
+
+ // find next available block in the same MTD partition
+ mapped_block = block_remap(mtd, block);
+ if (mapped_block == -1)
+ return NAND_STATUS_FAIL;
+
+ get_start_end_block(mtd, block, &start_blk, &end_blk);
+
+ buf = kzalloc(mtd->writesize + mtd->oobsize, GFP_KERNEL | GFP_DMA);
+ if (buf == NULL)
+ return -1;
+
+ oob = buf + mtd->writesize;
+ for ((*to_blk) = block + 1; (*to_blk) <= end_blk ; (*to_blk)++) {
+ if (nand_bbt_get(mtd, (*to_blk) << page_per_block_bit) == 0) {
+ int status;
+ status = mtk_nand_erase_hw(mtd, (*to_blk) << page_per_block_bit);
+ if (status & NAND_STATUS_FAIL) {
+ mtk_nand_block_markbad_hw(mtd, (*to_blk) << chip->phys_erase_shift);
+ nand_bbt_set(mtd, (*to_blk) << page_per_block_bit, 0x3);
+ } else {
+ /* good block */
+ to_page = (*to_blk) << page_per_block_bit;
+ break;
+ }
+ }
+ }
+
+ if (!to_page) {
+ kfree(buf);
+ return -1;
+ }
+
+ first_page = (page >> page_per_block_bit) << page_per_block_bit;
+ for (i = 0; i < (1 << page_per_block_bit); i++) {
+ if ((first_page + i) != page) {
+ mtk_nand_read_oob_hw(mtd, chip, (first_page+i));
+ for (j = 0; j < mtd->oobsize; j++)
+ if (chip->oob_poi[j] != (unsigned char)0xff)
+ break;
+ if (j < mtd->oobsize) {
+ mtk_nand_exec_read_page(mtd, (first_page+i), mtd->writesize, buf, oob);
+ memset(oob, 0xff, mtd->oobsize);
+ if (mtk_nand_exec_write_page(mtd, to_page + i, mtd->writesize, (u8 *)buf, oob) != 0) {
+ int ret, new_blk = 0;
+ nand_bbt_set(mtd, to_page, 0x3);
+ ret = write_next_on_fail(mtd, buf, to_page + i, &new_blk);
+ if (ret) {
+ kfree(buf);
+ mtk_nand_block_markbad_hw(mtd, to_page << chip->page_shift);
+ return ret;
+ }
+ mtk_nand_block_markbad_hw(mtd, to_page << chip->page_shift);
+ *to_blk = new_blk;
+ to_page = ((*to_blk) << page_per_block_bit);
+ }
+ }
+ } else {
+ memset(chip->oob_poi, 0xff, mtd->oobsize);
+ if (mtk_nand_exec_write_page(mtd, to_page + i, mtd->writesize, (u8 *)write_buf, chip->oob_poi) != 0) {
+ int ret, new_blk = 0;
+ nand_bbt_set(mtd, to_page, 0x3);
+ ret = write_next_on_fail(mtd, write_buf, to_page + i, &new_blk);
+ if (ret) {
+ kfree(buf);
+ mtk_nand_block_markbad_hw(mtd, to_page << chip->page_shift);
+ return ret;
+ }
+ mtk_nand_block_markbad_hw(mtd, to_page << chip->page_shift);
+ *to_blk = new_blk;
+ to_page = ((*to_blk) << page_per_block_bit);
+ }
+ }
+ }
+
+ kfree(buf);
+
+ return 0;
+}
+
+static int
+mtk_nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, uint32_t offset,
+ int data_len, const u8 * buf, int oob_required, int page, int raw)
+{
+ int page_per_block = 1 << (chip->phys_erase_shift - chip->page_shift);
+ int block = page / page_per_block;
+ u16 page_in_block = page % page_per_block;
+ int mapped_block = block;
+
+#if defined(MTK_NAND_BMT)
+ mapped_block = get_mapping_block_index(block);
+ // write bad index into oob
+ if (mapped_block != block)
+ set_bad_index_to_oob(chip->oob_poi, block);
+ else
+ set_bad_index_to_oob(chip->oob_poi, FAKE_INDEX);
+#else
+ if (shift_on_bbt) {
+ mapped_block = block_remap(mtd, block);
+ if (mapped_block == -1)
+ return NAND_STATUS_FAIL;
+ if (nand_bbt_get(mtd, mapped_block << (chip->phys_erase_shift - chip->page_shift)) != 0x0)
+ return NAND_STATUS_FAIL;
+ }
+#endif
+ do {
+ if (mtk_nand_exec_write_page(mtd, page_in_block + mapped_block * page_per_block, mtd->writesize, (u8 *)buf, chip->oob_poi)) {
+ MSG(INIT, "write fail at block: 0x%x, page: 0x%x\n", mapped_block, page_in_block);
+#if defined(MTK_NAND_BMT)
+ if (update_bmt((page_in_block + mapped_block * page_per_block) << chip->page_shift, UPDATE_WRITE_FAIL, (u8 *) buf, chip->oob_poi)) {
+ MSG(INIT, "Update BMT success\n");
+ return 0;
+ } else {
+ MSG(INIT, "Update BMT fail\n");
+ return -EIO;
+ }
+#else
+ {
+ int new_blk;
+ nand_bbt_set(mtd, page_in_block + mapped_block * page_per_block, 0x3);
+ if (write_next_on_fail(mtd, (char *)buf, page_in_block + mapped_block * page_per_block, &new_blk) != 0)
+ {
+ mtk_nand_block_markbad_hw(mtd, (page_in_block + mapped_block * page_per_block) << chip->page_shift);
+ return NAND_STATUS_FAIL;
+ }
+ mtk_nand_block_markbad_hw(mtd, (page_in_block + mapped_block * page_per_block) << chip->page_shift);
+ break;
+ }
+#endif
+ } else
+ break;
+ } while(1);
+
+ return 0;
+}
+
+static void
+mtk_nand_command_bp(struct mtd_info *mtd, unsigned int command, int column, int page_addr)
+{
+ struct nand_chip *nand = mtd->priv;
+
+ switch (command) {
+ case NAND_CMD_SEQIN:
+ memset(g_kCMD.au1OOB, 0xFF, sizeof(g_kCMD.au1OOB));
+ g_kCMD.pDataBuf = NULL;
+ g_kCMD.u4RowAddr = page_addr;
+ g_kCMD.u4ColAddr = column;
+ break;
+
+ case NAND_CMD_PAGEPROG:
+ if (g_kCMD.pDataBuf || (0xFF != g_kCMD.au1OOB[nand_badblock_offset])) {
+ u8 *pDataBuf = g_kCMD.pDataBuf ? g_kCMD.pDataBuf : nand->buffers->databuf;
+ mtk_nand_exec_write_page(mtd, g_kCMD.u4RowAddr, mtd->writesize, pDataBuf, g_kCMD.au1OOB);
+ g_kCMD.u4RowAddr = (u32) - 1;
+ g_kCMD.u4OOBRowAddr = (u32) - 1;
+ }
+ break;
+
+ case NAND_CMD_READOOB:
+ g_kCMD.u4RowAddr = page_addr;
+ g_kCMD.u4ColAddr = column + mtd->writesize;
+ break;
+
+ case NAND_CMD_READ0:
+ g_kCMD.u4RowAddr = page_addr;
+ g_kCMD.u4ColAddr = column;
+ break;
+
+ case NAND_CMD_ERASE1:
+ nand->state=FL_ERASING;
+ (void)mtk_nand_reset();
+ mtk_nand_set_mode(CNFG_OP_ERASE);
+ (void)mtk_nand_set_command(NAND_CMD_ERASE1);
+ (void)mtk_nand_set_address(0, page_addr, 0, devinfo.addr_cycle - 2);
+ break;
+
+ case NAND_CMD_ERASE2:
+ (void)mtk_nand_set_command(NAND_CMD_ERASE2);
+ while (DRV_Reg32(NFI_STA_REG32) & STA_NAND_BUSY)
+ ;
+ break;
+
+ case NAND_CMD_STATUS:
+ (void)mtk_nand_reset();
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_BYTE_RW);
+ mtk_nand_set_mode(CNFG_OP_SRD);
+ mtk_nand_set_mode(CNFG_READ_EN);
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_AHB);
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ (void)mtk_nand_set_command(NAND_CMD_STATUS);
+ NFI_CLN_REG16(NFI_CON_REG16, CON_NFI_NOB_MASK);
+ mb();
+ DRV_WriteReg16(NFI_CON_REG16, CON_NFI_SRD | (1 << CON_NFI_NOB_SHIFT));
+ g_bcmdstatus = true;
+ break;
+
+ case NAND_CMD_RESET:
+ (void)mtk_nand_reset();
+ DRV_WriteReg16(NFI_INTR_EN_REG16, INTR_RST_DONE_EN);
+ (void)mtk_nand_set_command(NAND_CMD_RESET);
+ DRV_WriteReg16(NFI_BASE+0x44, 0xF1);
+ while(!(DRV_Reg16(NFI_INTR_REG16)&INTR_RST_DONE_EN))
+ ;
+ break;
+
+ case NAND_CMD_READID:
+ mtk_nand_reset();
+ /* Disable HW ECC */
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_AHB);
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_READ_EN | CNFG_BYTE_RW);
+ (void)mtk_nand_reset();
+ mb();
+ mtk_nand_set_mode(CNFG_OP_SRD);
+ (void)mtk_nand_set_command(NAND_CMD_READID);
+ (void)mtk_nand_set_address(0, 0, 1, 0);
+ DRV_WriteReg16(NFI_CON_REG16, CON_NFI_SRD);
+ while (DRV_Reg32(NFI_STA_REG32) & STA_DATAR_STATE)
+ ;
+ break;
+
+ default:
+ BUG();
+ break;
+ }
+}
+
+static void
+mtk_nand_select_chip(struct mtd_info *mtd, int chip)
+{
+ if ((chip == -1) && (false == g_bInitDone)) {
+ struct nand_chip *nand = mtd->priv;
+ struct mtk_nand_host *host = nand->priv;
+ struct mtk_nand_host_hw *hw = host->hw;
+ u32 spare_per_sector = mtd->oobsize / (mtd->writesize / 512);
+ u32 ecc_bit = 4;
+ u32 spare_bit = PAGEFMT_SPARE_16;
+
+ if (spare_per_sector >= 28) {
+ spare_bit = PAGEFMT_SPARE_28;
+ ecc_bit = 12;
+ spare_per_sector = 28;
+ } else if (spare_per_sector >= 27) {
+ spare_bit = PAGEFMT_SPARE_27;
+ ecc_bit = 8;
+ spare_per_sector = 27;
+ } else if (spare_per_sector >= 26) {
+ spare_bit = PAGEFMT_SPARE_26;
+ ecc_bit = 8;
+ spare_per_sector = 26;
+ } else if (spare_per_sector >= 16) {
+ spare_bit = PAGEFMT_SPARE_16;
+ ecc_bit = 4;
+ spare_per_sector = 16;
+ } else {
+ MSG(INIT, "[NAND]: NFI not support oobsize: %x\n", spare_per_sector);
+ ASSERT(0);
+ }
+ mtd->oobsize = spare_per_sector*(mtd->writesize/512);
+ MSG(INIT, "[NAND]select ecc bit:%d, sparesize :%d spare_per_sector=%d\n",ecc_bit,mtd->oobsize,spare_per_sector);
+ /* Setup PageFormat */
+ if (4096 == mtd->writesize) {
+ NFI_SET_REG16(NFI_PAGEFMT_REG16, (spare_bit << PAGEFMT_SPARE_SHIFT) | PAGEFMT_4K);
+ nand->cmdfunc = mtk_nand_command_bp;
+ } else if (2048 == mtd->writesize) {
+ NFI_SET_REG16(NFI_PAGEFMT_REG16, (spare_bit << PAGEFMT_SPARE_SHIFT) | PAGEFMT_2K);
+ nand->cmdfunc = mtk_nand_command_bp;
+ }
+ ECC_Config(hw,ecc_bit);
+ g_bInitDone = true;
+ }
+ switch (chip) {
+ case -1:
+ break;
+ case 0:
+ case 1:
+ /* Jun Shen, 2011.04.13 */
+ /* Note: MT6577 EVB NAND is mounted on CS0, but FPGA is CS1 */
+ DRV_WriteReg16(NFI_CSEL_REG16, chip);
+ /* Jun Shen, 2011.04.13 */
+ break;
+ }
+}
+
+static uint8_t
+mtk_nand_read_byte(struct mtd_info *mtd)
+{
+ uint8_t retval = 0;
+
+ if (!mtk_nand_pio_ready()) {
+ printk("pio ready timeout\n");
+ retval = false;
+ }
+
+ if (g_bcmdstatus) {
+ retval = DRV_Reg8(NFI_DATAR_REG32);
+ NFI_CLN_REG16(NFI_CON_REG16, CON_NFI_NOB_MASK);
+ mtk_nand_reset();
+ if (g_bHwEcc) {
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ } else {
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ }
+ g_bcmdstatus = false;
+ } else
+ retval = DRV_Reg8(NFI_DATAR_REG32);
+
+ return retval;
+}
+
+static void
+mtk_nand_read_buf(struct mtd_info *mtd, uint8_t * buf, int len)
+{
+ struct nand_chip *nand = (struct nand_chip *)mtd->priv;
+ struct NAND_CMD *pkCMD = &g_kCMD;
+ u32 u4ColAddr = pkCMD->u4ColAddr;
+ u32 u4PageSize = mtd->writesize;
+
+ if (u4ColAddr < u4PageSize) {
+ if ((u4ColAddr == 0) && (len >= u4PageSize)) {
+ mtk_nand_exec_read_page(mtd, pkCMD->u4RowAddr, u4PageSize, buf, pkCMD->au1OOB);
+ if (len > u4PageSize) {
+ u32 u4Size = min(len - u4PageSize, sizeof(pkCMD->au1OOB));
+ memcpy(buf + u4PageSize, pkCMD->au1OOB, u4Size);
+ }
+ } else {
+ mtk_nand_exec_read_page(mtd, pkCMD->u4RowAddr, u4PageSize, nand->buffers->databuf, pkCMD->au1OOB);
+ memcpy(buf, nand->buffers->databuf + u4ColAddr, len);
+ }
+ pkCMD->u4OOBRowAddr = pkCMD->u4RowAddr;
+ } else {
+ u32 u4Offset = u4ColAddr - u4PageSize;
+ u32 u4Size = min(len - u4Offset, sizeof(pkCMD->au1OOB));
+ if (pkCMD->u4OOBRowAddr != pkCMD->u4RowAddr) {
+ mtk_nand_exec_read_page(mtd, pkCMD->u4RowAddr, u4PageSize, nand->buffers->databuf, pkCMD->au1OOB);
+ pkCMD->u4OOBRowAddr = pkCMD->u4RowAddr;
+ }
+ memcpy(buf, pkCMD->au1OOB + u4Offset, u4Size);
+ }
+ pkCMD->u4ColAddr += len;
+}
+
+static void
+mtk_nand_write_buf(struct mtd_info *mtd, const uint8_t * buf, int len)
+{
+ struct NAND_CMD *pkCMD = &g_kCMD;
+ u32 u4ColAddr = pkCMD->u4ColAddr;
+ u32 u4PageSize = mtd->writesize;
+ int i4Size, i;
+
+ if (u4ColAddr >= u4PageSize) {
+ u32 u4Offset = u4ColAddr - u4PageSize;
+ u8 *pOOB = pkCMD->au1OOB + u4Offset;
+ i4Size = min(len, (int)(sizeof(pkCMD->au1OOB) - u4Offset));
+ for (i = 0; i < i4Size; i++) {
+ pOOB[i] &= buf[i];
+ }
+ } else {
+ pkCMD->pDataBuf = (u8 *) buf;
+ }
+
+ pkCMD->u4ColAddr += len;
+}
+
+static int
+mtk_nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t * buf, int oob_required, int page)
+{
+ mtk_nand_write_buf(mtd, buf, mtd->writesize);
+ mtk_nand_write_buf(mtd, chip->oob_poi, mtd->oobsize);
+ return 0;
+}
+
+static int
+mtk_nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t * buf, int oob_required, int page)
+{
+ struct NAND_CMD *pkCMD = &g_kCMD;
+ u32 u4ColAddr = pkCMD->u4ColAddr;
+ u32 u4PageSize = mtd->writesize;
+
+ if (u4ColAddr == 0) {
+ mtk_nand_exec_read_page(mtd, pkCMD->u4RowAddr, u4PageSize, buf, chip->oob_poi);
+ pkCMD->u4ColAddr += u4PageSize + mtd->oobsize;
+ }
+
+ return 0;
+}
+
+static int
+mtk_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip, u8 * buf, int page)
+{
+ int page_per_block = 1 << (chip->phys_erase_shift - chip->page_shift);
+ int block = page / page_per_block;
+ u16 page_in_block = page % page_per_block;
+ int mapped_block = block;
+
+#if defined (MTK_NAND_BMT)
+ mapped_block = get_mapping_block_index(block);
+ if (mtk_nand_exec_read_page(mtd, page_in_block + mapped_block * page_per_block,
+ mtd->writesize, buf, chip->oob_poi))
+ return 0;
+#else
+ if (shift_on_bbt) {
+ mapped_block = block_remap(mtd, block);
+ if (mapped_block == -1)
+ return NAND_STATUS_FAIL;
+ if (nand_bbt_get(mtd, mapped_block << (chip->phys_erase_shift - chip->page_shift)) != 0x0)
+ return NAND_STATUS_FAIL;
+ }
+
+ if (mtk_nand_exec_read_page(mtd, page_in_block + mapped_block * page_per_block, mtd->writesize, buf, chip->oob_poi))
+ return 0;
+ else
+ return -EIO;
+#endif
+}
+
+int
+mtk_nand_erase_hw(struct mtd_info *mtd, int page)
+{
+ struct nand_chip *chip = (struct nand_chip *)mtd->priv;
+
+ chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
+ chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
+
+ return chip->waitfunc(mtd, chip);
+}
+
+static int
+mtk_nand_erase(struct mtd_info *mtd, int page)
+{
+ // get mapping
+ struct nand_chip *chip = mtd->priv;
+ int page_per_block = 1 << (chip->phys_erase_shift - chip->page_shift);
+ int page_in_block = page % page_per_block;
+ int block = page / page_per_block;
+ int mapped_block = block;
+
+#if defined(MTK_NAND_BMT)
+ mapped_block = get_mapping_block_index(block);
+#else
+ if (shift_on_bbt) {
+ mapped_block = block_remap(mtd, block);
+ if (mapped_block == -1)
+ return NAND_STATUS_FAIL;
+ if (nand_bbt_get(mtd, mapped_block << (chip->phys_erase_shift - chip->page_shift)) != 0x0)
+ return NAND_STATUS_FAIL;
+ }
+#endif
+
+ do {
+ int status = mtk_nand_erase_hw(mtd, page_in_block + page_per_block * mapped_block);
+
+ if (status & NAND_STATUS_FAIL) {
+#if defined (MTK_NAND_BMT)
+ if (update_bmt( (page_in_block + mapped_block * page_per_block) << chip->page_shift,
+ UPDATE_ERASE_FAIL, NULL, NULL))
+ {
+ MSG(INIT, "Erase fail at block: 0x%x, update BMT success\n", mapped_block);
+ return 0;
+ } else {
+ MSG(INIT, "Erase fail at block: 0x%x, update BMT fail\n", mapped_block);
+ return NAND_STATUS_FAIL;
+ }
+#else
+ mtk_nand_block_markbad_hw(mtd, (page_in_block + mapped_block * page_per_block) << chip->page_shift);
+ nand_bbt_set(mtd, page_in_block + mapped_block * page_per_block, 0x3);
+ if (shift_on_bbt) {
+ mapped_block = block_remap(mtd, block);
+ if (mapped_block == -1)
+ return NAND_STATUS_FAIL;
+ if (nand_bbt_get(mtd, mapped_block << (chip->phys_erase_shift - chip->page_shift)) != 0x0)
+ return NAND_STATUS_FAIL;
+ } else
+ return NAND_STATUS_FAIL;
+#endif
+ } else
+ break;
+ } while(1);
+
+ return 0;
+}
+
+static int
+mtk_nand_read_oob_raw(struct mtd_info *mtd, uint8_t * buf, int page_addr, int len)
+{
+ struct nand_chip *chip = (struct nand_chip *)mtd->priv;
+ u32 col_addr = 0;
+ u32 sector = 0;
+ int res = 0;
+ u32 colnob = 2, rawnob = devinfo.addr_cycle - 2;
+ int randomread = 0;
+ int read_len = 0;
+ int sec_num = 1<<(chip->page_shift-9);
+ int spare_per_sector = mtd->oobsize/sec_num;
+
+ if (len > NAND_MAX_OOBSIZE || len % OOB_AVAI_PER_SECTOR || !buf) {
+ printk(KERN_WARNING "[%s] invalid parameter, len: %d, buf: %p\n", __FUNCTION__, len, buf);
+ return -EINVAL;
+ }
+ if (len > spare_per_sector)
+ randomread = 1;
+ if (!randomread || !(devinfo.advancedmode & RAMDOM_READ)) {
+ while (len > 0) {
+ read_len = min(len, spare_per_sector);
+ col_addr = NAND_SECTOR_SIZE + sector * (NAND_SECTOR_SIZE + spare_per_sector); // TODO: Fix this hard-code 16
+ if (!mtk_nand_ready_for_read(chip, page_addr, col_addr, false, NULL)) {
+ printk(KERN_WARNING "mtk_nand_ready_for_read return failed\n");
+ res = -EIO;
+ goto error;
+ }
+ if (!mtk_nand_mcu_read_data(buf + spare_per_sector * sector, read_len)) {
+ printk(KERN_WARNING "mtk_nand_mcu_read_data return failed\n");
+ res = -EIO;
+ goto error;
+ }
+ mtk_nand_check_RW_count(read_len);
+ mtk_nand_stop_read();
+ sector++;
+ len -= read_len;
+ }
+ } else {
+ col_addr = NAND_SECTOR_SIZE;
+ if (chip->options & NAND_BUSWIDTH_16)
+ col_addr /= 2;
+ if (!mtk_nand_reset())
+ goto error;
+ mtk_nand_set_mode(0x6000);
+ NFI_SET_REG16(NFI_CNFG_REG16, CNFG_READ_EN);
+ DRV_WriteReg16(NFI_CON_REG16, 4 << CON_NFI_SEC_SHIFT);
+
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_AHB);
+ NFI_CLN_REG16(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+
+ mtk_nand_set_autoformat(false);
+
+ if (!mtk_nand_set_command(NAND_CMD_READ0))
+ goto error;
+ //1 FIXED ME: For Any Kind of AddrCycle
+ if (!mtk_nand_set_address(col_addr, page_addr, colnob, rawnob))
+ goto error;
+ if (!mtk_nand_set_command(NAND_CMD_READSTART))
+ goto error;
+ if (!mtk_nand_status_ready(STA_NAND_BUSY))
+ goto error;
+ read_len = min(len, spare_per_sector);
+ if (!mtk_nand_mcu_read_data(buf + spare_per_sector * sector, read_len)) {
+ printk(KERN_WARNING "mtk_nand_mcu_read_data return failed first 16\n");
+ res = -EIO;
+ goto error;
+ }
+ sector++;
+ len -= read_len;
+ mtk_nand_stop_read();
+ while (len > 0) {
+ read_len = min(len, spare_per_sector);
+ if (!mtk_nand_set_command(0x05))
+ goto error;
+ col_addr = NAND_SECTOR_SIZE + sector * (NAND_SECTOR_SIZE + spare_per_sector);
+ if (chip->options & NAND_BUSWIDTH_16)
+ col_addr /= 2;
+ DRV_WriteReg32(NFI_COLADDR_REG32, col_addr);
+ DRV_WriteReg16(NFI_ADDRNOB_REG16, 2);
+ DRV_WriteReg16(NFI_CON_REG16, 4 << CON_NFI_SEC_SHIFT);
+ if (!mtk_nand_status_ready(STA_ADDR_STATE))
+ goto error;
+ if (!mtk_nand_set_command(0xE0))
+ goto error;
+ if (!mtk_nand_status_ready(STA_NAND_BUSY))
+ goto error;
+ if (!mtk_nand_mcu_read_data(buf + spare_per_sector * sector, read_len)) {
+ printk(KERN_WARNING "mtk_nand_mcu_read_data return failed first 16\n");
+ res = -EIO;
+ goto error;
+ }
+ mtk_nand_stop_read();
+ sector++;
+ len -= read_len;
+ }
+ }
+error:
+ NFI_CLN_REG16(NFI_CON_REG16, CON_NFI_BRD);
+ return res;
+}
+
+static int
+mtk_nand_write_oob_raw(struct mtd_info *mtd, const uint8_t * buf, int page_addr, int len)
+{
+ struct nand_chip *chip = mtd->priv;
+ u32 col_addr = 0;
+ u32 sector = 0;
+ int write_len = 0;
+ int status;
+ int sec_num = 1<<(chip->page_shift-9);
+ int spare_per_sector = mtd->oobsize/sec_num;
+
+ if (len > NAND_MAX_OOBSIZE || len % OOB_AVAI_PER_SECTOR || !buf) {
+ printk(KERN_WARNING "[%s] invalid parameter, len: %d, buf: %p\n", __FUNCTION__, len, buf);
+ return -EINVAL;
+ }
+
+ while (len > 0) {
+ write_len = min(len, spare_per_sector);
+ col_addr = sector * (NAND_SECTOR_SIZE + spare_per_sector) + NAND_SECTOR_SIZE;
+ if (!mtk_nand_ready_for_write(chip, page_addr, col_addr, false, NULL))
+ return -EIO;
+ if (!mtk_nand_mcu_write_data(mtd, buf + sector * spare_per_sector, write_len))
+ return -EIO;
+ (void)mtk_nand_check_RW_count(write_len);
+ NFI_CLN_REG16(NFI_CON_REG16, CON_NFI_BWR);
+ (void)mtk_nand_set_command(NAND_CMD_PAGEPROG);
+ while (DRV_Reg32(NFI_STA_REG32) & STA_NAND_BUSY)
+ ;
+ status = chip->waitfunc(mtd, chip);
+ if (status & NAND_STATUS_FAIL) {
+ printk(KERN_INFO "status: %d\n", status);
+ return -EIO;
+ }
+ len -= write_len;
+ sector++;
+ }
+
+ return 0;
+}
+
+static int
+mtk_nand_write_oob_hw(struct mtd_info *mtd, struct nand_chip *chip, int page)
+{
+ int i, iter;
+ int sec_num = 1<<(chip->page_shift-9);
+ int spare_per_sector = mtd->oobsize/sec_num;
+
+ memcpy(local_oob_buf, chip->oob_poi, mtd->oobsize);
+
+ // copy ecc data
+ for (i = 0; i < layout->eccbytes; i++) {
+ iter = (i / (spare_per_sector-OOB_AVAI_PER_SECTOR)) * spare_per_sector + OOB_AVAI_PER_SECTOR + i % (spare_per_sector-OOB_AVAI_PER_SECTOR);
+ local_oob_buf[iter] = chip->oob_poi[layout->eccpos[i]];
+ }
+
+ // copy FDM data
+ for (i = 0; i < sec_num; i++)
+ memcpy(&local_oob_buf[i * spare_per_sector], &chip->oob_poi[i * OOB_AVAI_PER_SECTOR], OOB_AVAI_PER_SECTOR);
+
+ return mtk_nand_write_oob_raw(mtd, local_oob_buf, page, mtd->oobsize);
+}
+
+static int mtk_nand_write_oob(struct mtd_info *mtd, struct nand_chip *chip, int page)
+{
+ int page_per_block = 1 << (chip->phys_erase_shift - chip->page_shift);
+ int block = page / page_per_block;
+ u16 page_in_block = page % page_per_block;
+ int mapped_block = block;
+
+#if defined(MTK_NAND_BMT)
+ mapped_block = get_mapping_block_index(block);
+ // write bad index into oob
+ if (mapped_block != block)
+ set_bad_index_to_oob(chip->oob_poi, block);
+ else
+ set_bad_index_to_oob(chip->oob_poi, FAKE_INDEX);
+#else
+ if (shift_on_bbt)
+ {
+ mapped_block = block_remap(mtd, block);
+ if (mapped_block == -1)
+ return NAND_STATUS_FAIL;
+ if (nand_bbt_get(mtd, mapped_block << (chip->phys_erase_shift - chip->page_shift)) != 0x0)
+ return NAND_STATUS_FAIL;
+ }
+#endif
+ do {
+ if (mtk_nand_write_oob_hw(mtd, chip, page_in_block + mapped_block * page_per_block /* page */)) {
+ MSG(INIT, "write oob fail at block: 0x%x, page: 0x%x\n", mapped_block, page_in_block);
+#if defined(MTK_NAND_BMT)
+ if (update_bmt((page_in_block + mapped_block * page_per_block) << chip->page_shift,
+ UPDATE_WRITE_FAIL, NULL, chip->oob_poi))
+ {
+ MSG(INIT, "Update BMT success\n");
+ return 0;
+ } else {
+ MSG(INIT, "Update BMT fail\n");
+ return -EIO;
+ }
+#else
+ mtk_nand_block_markbad_hw(mtd, (page_in_block + mapped_block * page_per_block) << chip->page_shift);
+ nand_bbt_set(mtd, page_in_block + mapped_block * page_per_block, 0x3);
+ if (shift_on_bbt) {
+ mapped_block = block_remap(mtd, mapped_block);
+ if (mapped_block == -1)
+ return NAND_STATUS_FAIL;
+ if (nand_bbt_get(mtd, mapped_block << (chip->phys_erase_shift - chip->page_shift)) != 0x0)
+ return NAND_STATUS_FAIL;
+ } else {
+ return NAND_STATUS_FAIL;
+ }
+#endif
+ } else
+ break;
+ } while (1);
+
+ return 0;
+}
+
+int
+mtk_nand_block_markbad_hw(struct mtd_info *mtd, loff_t offset)
+{
+ struct nand_chip *chip = mtd->priv;
+ int block = (int)offset >> chip->phys_erase_shift;
+ int page = block * (1 << (chip->phys_erase_shift - chip->page_shift));
+ u8 buf[8];
+
+ memset(buf, 0xFF, 8);
+ buf[0] = 0;
+ return mtk_nand_write_oob_raw(mtd, buf, page, 8);
+}
+
+static int
+mtk_nand_block_markbad(struct mtd_info *mtd, loff_t offset)
+{
+ struct nand_chip *chip = mtd->priv;
+ int block = (int)offset >> chip->phys_erase_shift;
+ int ret;
+ int mapped_block = block;
+
+ nand_get_device(chip, mtd, FL_WRITING);
+
+#if defined(MTK_NAND_BMT)
+ mapped_block = get_mapping_block_index(block);
+ ret = mtk_nand_block_markbad_hw(mtd, mapped_block << chip->phys_erase_shift);
+#else
+ if (shift_on_bbt) {
+ mapped_block = block_remap(mtd, block);
+ if (mapped_block == -1) {
+ printk("NAND mark bad failed\n");
+ nand_release_device(mtd);
+ return NAND_STATUS_FAIL;
+ }
+ }
+ ret = mtk_nand_block_markbad_hw(mtd, mapped_block << chip->phys_erase_shift);
+#endif
+ nand_release_device(mtd);
+
+ return ret;
+}
+
+int
+mtk_nand_read_oob_hw(struct mtd_info *mtd, struct nand_chip *chip, int page)
+{
+ int i;
+ u8 iter = 0;
+
+ int sec_num = 1<<(chip->page_shift-9);
+ int spare_per_sector = mtd->oobsize/sec_num;
+
+ if (mtk_nand_read_oob_raw(mtd, chip->oob_poi, page, mtd->oobsize)) {
+ printk(KERN_ERR "[%s]mtk_nand_read_oob_raw return failed\n", __FUNCTION__);
+ return -EIO;
+ }
+
+ // adjust to ecc physical layout to memory layout
+ /*********************************************************/
+ /* FDM0 | ECC0 | FDM1 | ECC1 | FDM2 | ECC2 | FDM3 | ECC3 */
+ /* 8B | 8B | 8B | 8B | 8B | 8B | 8B | 8B */
+ /*********************************************************/
+
+ memcpy(local_oob_buf, chip->oob_poi, mtd->oobsize);
+ // copy ecc data
+ for (i = 0; i < layout->eccbytes; i++) {
+ iter = (i / (spare_per_sector-OOB_AVAI_PER_SECTOR)) * spare_per_sector + OOB_AVAI_PER_SECTOR + i % (spare_per_sector-OOB_AVAI_PER_SECTOR);
+ chip->oob_poi[layout->eccpos[i]] = local_oob_buf[iter];
+ }
+
+ // copy FDM data
+ for (i = 0; i < sec_num; i++) {
+ memcpy(&chip->oob_poi[i * OOB_AVAI_PER_SECTOR], &local_oob_buf[i * spare_per_sector], OOB_AVAI_PER_SECTOR);
+ }
+
+ return 0;
+}
+
+static int
+mtk_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip, int page)
+{
+ int page_per_block = 1 << (chip->phys_erase_shift - chip->page_shift);
+ int block = page / page_per_block;
+ u16 page_in_block = page % page_per_block;
+ int mapped_block = block;
+
+#if defined (MTK_NAND_BMT)
+ mapped_block = get_mapping_block_index(block);
+ mtk_nand_read_oob_hw(mtd, chip, page_in_block + mapped_block * page_per_block);
+#else
+ if (shift_on_bbt) {
+ mapped_block = block_remap(mtd, block);
+ if (mapped_block == -1)
+ return NAND_STATUS_FAIL;
+ // allow to read oob even if the block is bad
+ }
+ if (mtk_nand_read_oob_hw(mtd, chip, page_in_block + mapped_block * page_per_block)!=0)
+ return -1;
+#endif
+ return 0;
+}
+
+int
+mtk_nand_block_bad_hw(struct mtd_info *mtd, loff_t ofs)
+{
+ struct nand_chip *chip = (struct nand_chip *)mtd->priv;
+ int page_addr = (int)(ofs >> chip->page_shift);
+ unsigned int page_per_block = 1 << (chip->phys_erase_shift - chip->page_shift);
+ unsigned char oob_buf[8];
+
+ page_addr &= ~(page_per_block - 1);
+ if (mtk_nand_read_oob_raw(mtd, oob_buf, page_addr, sizeof(oob_buf))) {
+ printk(KERN_WARNING "mtk_nand_read_oob_raw return error\n");
+ return 1;
+ }
+
+ if (oob_buf[0] != 0xff) {
+ printk(KERN_WARNING "Bad block detected at 0x%x, oob_buf[0] is 0x%x\n", page_addr, oob_buf[0]);
+ // dump_nfi();
+ return 1;
+ }
+
+ return 0;
+}
+
+static int
+mtk_nand_block_bad(struct mtd_info *mtd, loff_t ofs)
+{
+ struct nand_chip *chip = (struct nand_chip *)mtd->priv;
+ int block = (int)ofs >> chip->phys_erase_shift;
+ int mapped_block = block;
+ int ret;
+
+#if defined(MTK_NAND_BMT)
+ mapped_block = get_mapping_block_index(block);
+#else
+ if (shift_on_bbt) {
+ mapped_block = block_remap(mtd, block);
+ }
+#endif
+
+ ret = mtk_nand_block_bad_hw(mtd, mapped_block << chip->phys_erase_shift);
+#if defined (MTK_NAND_BMT)
+ if (ret) {
+ MSG(INIT, "Unmapped bad block: 0x%x\n", mapped_block);
+ if (update_bmt(mapped_block << chip->phys_erase_shift, UPDATE_UNMAPPED_BLOCK, NULL, NULL)) {
+ MSG(INIT, "Update BMT success\n");
+ ret = 0;
+ } else {
+ MSG(INIT, "Update BMT fail\n");
+ ret = 1;
+ }
+ }
+#endif
+
+ return ret;
+}
+
+#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
+char gacBuf[4096 + 288];
+
+static int
+mtk_nand_verify_buf(struct mtd_info *mtd, const uint8_t * buf, int len)
+{
+ struct nand_chip *chip = (struct nand_chip *)mtd->priv;
+ struct NAND_CMD *pkCMD = &g_kCMD;
+ u32 u4PageSize = mtd->writesize;
+ u32 *pSrc, *pDst;
+ int i;
+
+ mtk_nand_exec_read_page(mtd, pkCMD->u4RowAddr, u4PageSize, gacBuf, gacBuf + u4PageSize);
+
+ pSrc = (u32 *) buf;
+ pDst = (u32 *) gacBuf;
+ len = len / sizeof(u32);
+ for (i = 0; i < len; ++i) {
+ if (*pSrc != *pDst) {
+ MSG(VERIFY, "mtk_nand_verify_buf page fail at page %d\n", pkCMD->u4RowAddr);
+ return -1;
+ }
+ pSrc++;
+ pDst++;
+ }
+
+ pSrc = (u32 *) chip->oob_poi;
+ pDst = (u32 *) (gacBuf + u4PageSize);
+
+ if ((pSrc[0] != pDst[0]) || (pSrc[1] != pDst[1]) || (pSrc[2] != pDst[2]) || (pSrc[3] != pDst[3]) || (pSrc[4] != pDst[4]) || (pSrc[5] != pDst[5])) {
+ // TODO: Ask Designer Why?
+ //(pSrc[6] != pDst[6]) || (pSrc[7] != pDst[7]))
+ MSG(VERIFY, "mtk_nand_verify_buf oob fail at page %d\n", pkCMD->u4RowAddr);
+ MSG(VERIFY, "0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", pSrc[0], pSrc[1], pSrc[2], pSrc[3], pSrc[4], pSrc[5], pSrc[6], pSrc[7]);
+ MSG(VERIFY, "0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", pDst[0], pDst[1], pDst[2], pDst[3], pDst[4], pDst[5], pDst[6], pDst[7]);
+ return -1;
+ }
+ return 0;
+}
+#endif
+
+static void
+mtk_nand_init_hw(struct mtk_nand_host *host) {
+ struct mtk_nand_host_hw *hw = host->hw;
+ u32 data;
+
+ data = DRV_Reg32(RALINK_SYSCTL_BASE+0x60);
+ data &= ~((0x3<<18)|(0x3<<16));
+ data |= ((0x2<<18) |(0x2<<16));
+ DRV_WriteReg32(RALINK_SYSCTL_BASE+0x60, data);
+
+ MSG(INIT, "Enable NFI Clock\n");
+ nand_enable_clock();
+
+ g_bInitDone = false;
+ g_kCMD.u4OOBRowAddr = (u32) - 1;
+
+ /* Set default NFI access timing control */
+ DRV_WriteReg32(NFI_ACCCON_REG32, hw->nfi_access_timing);
+ DRV_WriteReg16(NFI_CNFG_REG16, 0);
+ DRV_WriteReg16(NFI_PAGEFMT_REG16, 0);
+
+ /* Reset the state machine and data FIFO, because flushing FIFO */
+ (void)mtk_nand_reset();
+
+ /* Set the ECC engine */
+ if (hw->nand_ecc_mode == NAND_ECC_HW) {
+ MSG(INIT, "%s : Use HW ECC\n", MODULE_NAME);
+ if (g_bHwEcc)
+ NFI_SET_REG32(NFI_CNFG_REG16, CNFG_HW_ECC_EN);
+ ECC_Config(host->hw,4);
+ mtk_nand_configure_fdm(8);
+ mtk_nand_configure_lock();
+ }
+
+ NFI_SET_REG16(NFI_IOCON_REG16, 0x47);
+}
+
+static int mtk_nand_dev_ready(struct mtd_info *mtd)
+{
+ return !(DRV_Reg32(NFI_STA_REG32) & STA_NAND_BUSY);
+}
+
+#define FACT_BBT_BLOCK_NUM 32 // use the latest 32 BLOCK for factory bbt table
+#define FACT_BBT_OOB_SIGNATURE 1
+#define FACT_BBT_SIGNATURE_LEN 7
+const u8 oob_signature[] = "mtknand";
+static u8 *fact_bbt = 0;
+static u32 bbt_size = 0;
+
+static int
+read_fact_bbt(struct mtd_info *mtd, unsigned int page)
+{
+ struct nand_chip *chip = mtd->priv;
+
+ // read oob
+ if (mtk_nand_read_oob_hw(mtd, chip, page)==0)
+ {
+ if (chip->oob_poi[nand_badblock_offset] != 0xFF)
+ {
+ printk("Bad Block on Page %x\n", page);
+ return -1;
+ }
+ if (memcmp(&chip->oob_poi[FACT_BBT_OOB_SIGNATURE], oob_signature, FACT_BBT_SIGNATURE_LEN) != 0)
+ {
+ printk("compare signature failed %x\n", page);
+ return -1;
+ }
+ if (mtk_nand_exec_read_page(mtd, page, mtd->writesize, chip->buffers->databuf, chip->oob_poi))
+ {
+ printk("Signature matched and data read!\n");
+ memcpy(fact_bbt, chip->buffers->databuf, (bbt_size <= mtd->writesize)? bbt_size:mtd->writesize);
+ return 0;
+ }
+
+ }
+ printk("failed at page %x\n", page);
+ return -1;
+}
+
+static int
+load_fact_bbt(struct mtd_info *mtd)
+{
+ struct nand_chip *chip = mtd->priv;
+ int i;
+ u32 total_block;
+
+ total_block = 1 << (chip->chip_shift - chip->phys_erase_shift);
+ bbt_size = total_block >> 2;
+
+ if ((!fact_bbt) && (bbt_size))
+ fact_bbt = (u8 *)kmalloc(bbt_size, GFP_KERNEL);
+ if (!fact_bbt)
+ return -1;
+
+ for (i = total_block - 1; i >= (total_block - FACT_BBT_BLOCK_NUM); i--)
+ {
+ if (read_fact_bbt(mtd, i << (chip->phys_erase_shift - chip->page_shift)) == 0)
+ {
+ printk("load_fact_bbt success %d\n", i);
+ return 0;
+ }
+
+ }
+ printk("load_fact_bbt failed\n");
+ return -1;
+}
+
+static int oob_mtk_ooblayout_ecc(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *oobregion)
+{
+ oobregion->length = 8;
+ oobregion->offset = layout->eccpos[section * 8];
+
+ return 0;
+}
+
+static int oob_mtk_ooblayout_free(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *oobregion)
+{
+ if (section >= (layout->eccbytes / 8)) {
+ return -ERANGE;
+ }
+ oobregion->offset = layout->oobfree[section].offset;
+ oobregion->length = layout->oobfree[section].length;
+
+ return 0;
+}
+
+
+static const struct mtd_ooblayout_ops oob_mtk_ops = {
+ .ecc = oob_mtk_ooblayout_ecc,
+ .free = oob_mtk_ooblayout_free,
+};
+
+static int
+mtk_nand_probe(struct platform_device *pdev)
+{
+ struct mtd_part_parser_data ppdata;
+ struct mtk_nand_host_hw *hw;
+ struct nand_chip *nand_chip;
+ struct mtd_info *mtd;
+ u8 ext_id1, ext_id2, ext_id3;
+ int err = 0;
+ int id;
+ u32 ext_id;
+ int i;
+ u32 data;
+
+ data = DRV_Reg32(RALINK_SYSCTL_BASE+0x60);
+ data &= ~((0x3<<18)|(0x3<<16));
+ data |= ((0x2<<18) |(0x2<<16));
+ DRV_WriteReg32(RALINK_SYSCTL_BASE+0x60, data);
+
+ hw = &mt7621_nand_hw;
+ BUG_ON(!hw);
+ /* Allocate memory for the device structure (and zero it) */
+ host = kzalloc(sizeof(struct mtk_nand_host), GFP_KERNEL);
+ if (!host) {
+ MSG(INIT, "mtk_nand: failed to allocate device structure.\n");
+ return -ENOMEM;
+ }
+
+ host->hw = hw;
+
+ /* init mtd data structure */
+ nand_chip = &host->nand_chip;
+ nand_chip->priv = host; /* link the private data structures */
+
+ mtd = host->mtd = &nand_chip->mtd;
+ mtd->priv = nand_chip;
+ mtd->owner = THIS_MODULE;
+ mtd->name = "MT7621-NAND";
+
+ hw->nand_ecc_mode = NAND_ECC_HW;
+
+ /* Set address of NAND IO lines */
+ nand_chip->IO_ADDR_R = (void __iomem *)NFI_DATAR_REG32;
+ nand_chip->IO_ADDR_W = (void __iomem *)NFI_DATAW_REG32;
+ nand_chip->chip_delay = 20; /* 20us command delay time */
+ nand_chip->ecc.mode = hw->nand_ecc_mode; /* enable ECC */
+ nand_chip->ecc.strength = 1;
+ nand_chip->read_byte = mtk_nand_read_byte;
+ nand_chip->read_buf = mtk_nand_read_buf;
+ nand_chip->write_buf = mtk_nand_write_buf;
+#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
+ nand_chip->verify_buf = mtk_nand_verify_buf;
+#endif
+ nand_chip->select_chip = mtk_nand_select_chip;
+ nand_chip->dev_ready = mtk_nand_dev_ready;
+ nand_chip->cmdfunc = mtk_nand_command_bp;
+ nand_chip->ecc.read_page = mtk_nand_read_page_hwecc;
+ nand_chip->ecc.write_page = mtk_nand_write_page_hwecc;
+
+ mtd_set_ooblayout(mtd, &oob_mtk_ops);
+ nand_chip->ecc.size = hw->nand_ecc_size; //2048
+ nand_chip->ecc.bytes = hw->nand_ecc_bytes; //32
+
+ // For BMT, we need to revise driver architecture
+ nand_chip->write_page = mtk_nand_write_page;
+ nand_chip->ecc.write_oob = mtk_nand_write_oob;
+ nand_chip->block_markbad = mtk_nand_block_markbad; // need to add nand_get_device()/nand_release_device().
+ nand_chip->read_page = mtk_nand_read_page;
+ nand_chip->ecc.read_oob = mtk_nand_read_oob;
+ nand_chip->block_bad = mtk_nand_block_bad;
+ nand_chip->cmd_ctrl = mtk_nfc_cmd_ctrl;
+
+ //Qwert:Add for Uboot
+ mtk_nand_init_hw(host);
+ /* Select the device */
+ nand_chip->select_chip(mtd, NFI_DEFAULT_CS);
+
+ /*
+ * Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx)
+ * after power-up
+ */
+ nand_chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
+
+ memset(&devinfo, 0 , sizeof(flashdev_info));
+
+ /* Send the command for reading device ID */
+
+ nand_chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
+
+ /* Read manufacturer and device IDs */
+ manu_id = nand_chip->read_byte(mtd);
+ dev_id = nand_chip->read_byte(mtd);
+ id = dev_id | (manu_id << 8);
+ ext_id1 = nand_chip->read_byte(mtd);
+ ext_id2 = nand_chip->read_byte(mtd);
+ ext_id3 = nand_chip->read_byte(mtd);
+ ext_id = ext_id1 << 16 | ext_id2 << 8 | ext_id3;
+ if (!get_device_info(id, ext_id, &devinfo)) {
+ u32 chip_mode = RALINK_REG(RALINK_SYSCTL_BASE+0x010)&0x0F;
+ MSG(INIT, "Not Support this Device! \r\n");
+ memset(&devinfo, 0 , sizeof(flashdev_info));
+ MSG(INIT, "chip_mode=%08X\n",chip_mode);
+
+ /* apply bootstrap first */
+ devinfo.addr_cycle = 5;
+ devinfo.iowidth = 8;
+
+ switch (chip_mode) {
+ case 10:
+ devinfo.pagesize = 2048;
+ devinfo.sparesize = 128;
+ devinfo.totalsize = 128;
+ devinfo.blocksize = 128;
+ break;
+ case 11:
+ devinfo.pagesize = 4096;
+ devinfo.sparesize = 128;
+ devinfo.totalsize = 1024;
+ devinfo.blocksize = 256;
+ break;
+ case 12:
+ devinfo.pagesize = 4096;
+ devinfo.sparesize = 224;
+ devinfo.totalsize = 2048;
+ devinfo.blocksize = 512;
+ break;
+ default:
+ case 1:
+ devinfo.pagesize = 2048;
+ devinfo.sparesize = 64;
+ devinfo.totalsize = 128;
+ devinfo.blocksize = 128;
+ break;
+ }
+
+ devinfo.timmingsetting = NFI_DEFAULT_ACCESS_TIMING;
+ devinfo.devciename[0] = 'U';
+ devinfo.advancedmode = 0;
+ }
+ mtd->writesize = devinfo.pagesize;
+ mtd->erasesize = (devinfo.blocksize<<10);
+ mtd->oobsize = devinfo.sparesize;
+
+ nand_chip->chipsize = (devinfo.totalsize<<20);
+ nand_chip->page_shift = ffs(mtd->writesize) - 1;
+ nand_chip->pagemask = (nand_chip->chipsize >> nand_chip->page_shift) - 1;
+ nand_chip->phys_erase_shift = ffs(mtd->erasesize) - 1;
+ nand_chip->chip_shift = ffs(nand_chip->chipsize) - 1;//0x1C;//ffs(nand_chip->chipsize) - 1;
+ nand_chip->cmd_ctrl = mtk_nfc_cmd_ctrl;
+
+ if (devinfo.pagesize == 4096)
+ layout = &nand_oob_128;
+ else if (devinfo.pagesize == 2048)
+ layout = &nand_oob_64;
+ else if (devinfo.pagesize == 512)
+ layout = &nand_oob_16;
+
+ layout->eccbytes = devinfo.sparesize-OOB_AVAI_PER_SECTOR*(devinfo.pagesize/NAND_SECTOR_SIZE);
+ for (i = 0; i < layout->eccbytes; i++)
+ layout->eccpos[i]=OOB_AVAI_PER_SECTOR*(devinfo.pagesize/NAND_SECTOR_SIZE)+i;
+
+ MSG(INIT, "Support this Device in MTK table! %x \r\n", id);
+ hw->nfi_bus_width = devinfo.iowidth;
+ DRV_WriteReg32(NFI_ACCCON_REG32, devinfo.timmingsetting);
+
+ /* 16-bit bus width */
+ if (hw->nfi_bus_width == 16) {
+ MSG(INIT, "%s : Set the 16-bit I/O settings!\n", MODULE_NAME);
+ nand_chip->options |= NAND_BUSWIDTH_16;
+ }
+ mtd->oobsize = devinfo.sparesize;
+ hw->nfi_cs_num = 1;
+
+ nand_chip->options |= NAND_USE_BOUNCE_BUFFER;
+ nand_chip->buf_align = 16;
+
+ /* Scan to find existance of the device */
+ if (nand_scan(mtd, hw->nfi_cs_num)) {
+ MSG(INIT, "%s : nand_scan fail.\n", MODULE_NAME);
+ err = -ENXIO;
+ goto out;
+ }
+
+ nand_chip->erase = mtk_nand_erase;
+
+ g_page_size = mtd->writesize;
+ platform_set_drvdata(pdev, host);
+ if (hw->nfi_bus_width == 16) {
+ NFI_SET_REG16(NFI_PAGEFMT_REG16, PAGEFMT_DBYTE_EN);
+ }
+
+ nand_chip->select_chip(mtd, 0);
+#if defined(MTK_NAND_BMT)
+ nand_chip->chipsize -= (BMT_POOL_SIZE) << nand_chip->phys_erase_shift;
+#endif
+ mtd->size = nand_chip->chipsize;
+
+ CFG_BLOCKSIZE = mtd->erasesize;
+
+#if defined(MTK_NAND_BMT)
+ if (!g_bmt) {
+ if (!(g_bmt = init_bmt(nand_chip, BMT_POOL_SIZE))) {
+ MSG(INIT, "Error: init bmt failed\n");
+ return 0;
+ }
+ }
+#endif
+
+ nand_set_flash_node(nand_chip, pdev->dev.of_node);
+ err = mtd_device_parse_register(mtd, probe_types, &ppdata,
+ NULL, 0);
+ if (!err) {
+ MSG(INIT, "[mtk_nand] probe successfully!\n");
+ nand_disable_clock();
+ shift_on_bbt = 0;
+ if (load_fact_bbt(mtd) == 0) {
+ int i;
+ for (i = 0; i < 0x100; i++)
+ nand_chip->bbt[i] |= fact_bbt[i];
+ }
+
+ return err;
+ }
+
+out:
+ MSG(INIT, "[NFI] mtk_nand_probe fail, err = %d!\n", err);
+ nand_release(mtd);
+ platform_set_drvdata(pdev, NULL);
+ kfree(host);
+ nand_disable_clock();
+ return err;
+}
+
+static int
+mtk_nand_remove(struct platform_device *pdev)
+{
+ struct mtk_nand_host *host = platform_get_drvdata(pdev);
+ struct mtd_info *mtd = host->mtd;
+ struct nand_chip *nand_chip = &host->nand_chip;
+
+ nand_release(mtd);
+ kfree(host);
+ nand_disable_clock();
+
+ return 0;
+}
+
+static const struct of_device_id mt7621_nand_match[] = {
+ { .compatible = "mtk,mt7621-nand" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mt7621_nand_match);
+
+static struct platform_driver mtk_nand_driver = {
+ .probe = mtk_nand_probe,
+ .remove = mtk_nand_remove,
+ .driver = {
+ .name = "MT7621-NAND",
+ .owner = THIS_MODULE,
+ .of_match_table = mt7621_nand_match,
+ },
+};
+
+static int __init
+mtk_nand_init(void)
+{
+ printk("MediaTek Nand driver init, version %s\n", VERSION);
+
+ return platform_driver_register(&mtk_nand_driver);
+}
+
+static void __exit
+mtk_nand_exit(void)
+{
+ platform_driver_unregister(&mtk_nand_driver);
+}
+
+module_init(mtk_nand_init);
+module_exit(mtk_nand_exit);
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/drivers/mtd/nand/mtk_nand2.h
@@ -0,0 +1,452 @@
+#ifndef __MTK_NAND_H
+#define __MTK_NAND_H
+
+#define RALINK_NAND_CTRL_BASE 0xBE003000
+#define RALINK_SYSCTL_BASE 0xBE000000
+#define RALINK_NANDECC_CTRL_BASE 0xBE003800
+/*******************************************************************************
+ * NFI Register Definition
+ *******************************************************************************/
+
+#define NFI_CNFG_REG16 ((volatile P_U16)(NFI_BASE+0x0000))
+#define NFI_PAGEFMT_REG16 ((volatile P_U16)(NFI_BASE+0x0004))
+#define NFI_CON_REG16 ((volatile P_U16)(NFI_BASE+0x0008))
+#define NFI_ACCCON_REG32 ((volatile P_U32)(NFI_BASE+0x000C))
+#define NFI_INTR_EN_REG16 ((volatile P_U16)(NFI_BASE+0x0010))
+#define NFI_INTR_REG16 ((volatile P_U16)(NFI_BASE+0x0014))
+
+#define NFI_CMD_REG16 ((volatile P_U16)(NFI_BASE+0x0020))
+
+#define NFI_ADDRNOB_REG16 ((volatile P_U16)(NFI_BASE+0x0030))
+#define NFI_COLADDR_REG32 ((volatile P_U32)(NFI_BASE+0x0034))
+#define NFI_ROWADDR_REG32 ((volatile P_U32)(NFI_BASE+0x0038))
+
+#define NFI_STRDATA_REG16 ((volatile P_U16)(NFI_BASE+0x0040))
+
+#define NFI_DATAW_REG32 ((volatile P_U32)(NFI_BASE+0x0050))
+#define NFI_DATAR_REG32 ((volatile P_U32)(NFI_BASE+0x0054))
+#define NFI_PIO_DIRDY_REG16 ((volatile P_U16)(NFI_BASE+0x0058))
+
+#define NFI_STA_REG32 ((volatile P_U32)(NFI_BASE+0x0060))
+#define NFI_FIFOSTA_REG16 ((volatile P_U16)(NFI_BASE+0x0064))
+#define NFI_LOCKSTA_REG16 ((volatile P_U16)(NFI_BASE+0x0068))
+
+#define NFI_ADDRCNTR_REG16 ((volatile P_U16)(NFI_BASE+0x0070))
+
+#define NFI_STRADDR_REG32 ((volatile P_U32)(NFI_BASE+0x0080))
+#define NFI_BYTELEN_REG16 ((volatile P_U16)(NFI_BASE+0x0084))
+
+#define NFI_CSEL_REG16 ((volatile P_U16)(NFI_BASE+0x0090))
+#define NFI_IOCON_REG16 ((volatile P_U16)(NFI_BASE+0x0094))
+
+#define NFI_FDM0L_REG32 ((volatile P_U32)(NFI_BASE+0x00A0))
+#define NFI_FDM0M_REG32 ((volatile P_U32)(NFI_BASE+0x00A4))
+
+#define NFI_LOCK_REG16 ((volatile P_U16)(NFI_BASE+0x0100))
+#define NFI_LOCKCON_REG32 ((volatile P_U32)(NFI_BASE+0x0104))
+#define NFI_LOCKANOB_REG16 ((volatile P_U16)(NFI_BASE+0x0108))
+#define NFI_LOCK00ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0110))
+#define NFI_LOCK00FMT_REG32 ((volatile P_U32)(NFI_BASE+0x0114))
+#define NFI_LOCK01ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0118))
+#define NFI_LOCK01FMT_REG32 ((volatile P_U32)(NFI_BASE+0x011C))
+#define NFI_LOCK02ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0120))
+#define NFI_LOCK02FMT_REG32 ((volatile P_U32)(NFI_BASE+0x0124))
+#define NFI_LOCK03ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0128))
+#define NFI_LOCK03FMT_REG32 ((volatile P_U32)(NFI_BASE+0x012C))
+#define NFI_LOCK04ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0130))
+#define NFI_LOCK04FMT_REG32 ((volatile P_U32)(NFI_BASE+0x0134))
+#define NFI_LOCK05ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0138))
+#define NFI_LOCK05FMT_REG32 ((volatile P_U32)(NFI_BASE+0x013C))
+#define NFI_LOCK06ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0140))
+#define NFI_LOCK06FMT_REG32 ((volatile P_U32)(NFI_BASE+0x0144))
+#define NFI_LOCK07ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0148))
+#define NFI_LOCK07FMT_REG32 ((volatile P_U32)(NFI_BASE+0x014C))
+#define NFI_LOCK08ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0150))
+#define NFI_LOCK08FMT_REG32 ((volatile P_U32)(NFI_BASE+0x0154))
+#define NFI_LOCK09ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0158))
+#define NFI_LOCK09FMT_REG32 ((volatile P_U32)(NFI_BASE+0x015C))
+#define NFI_LOCK10ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0160))
+#define NFI_LOCK10FMT_REG32 ((volatile P_U32)(NFI_BASE+0x0164))
+#define NFI_LOCK11ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0168))
+#define NFI_LOCK11FMT_REG32 ((volatile P_U32)(NFI_BASE+0x016C))
+#define NFI_LOCK12ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0170))
+#define NFI_LOCK12FMT_REG32 ((volatile P_U32)(NFI_BASE+0x0174))
+#define NFI_LOCK13ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0178))
+#define NFI_LOCK13FMT_REG32 ((volatile P_U32)(NFI_BASE+0x017C))
+#define NFI_LOCK14ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0180))
+#define NFI_LOCK14FMT_REG32 ((volatile P_U32)(NFI_BASE+0x0184))
+#define NFI_LOCK15ADD_REG32 ((volatile P_U32)(NFI_BASE+0x0188))
+#define NFI_LOCK15FMT_REG32 ((volatile P_U32)(NFI_BASE+0x018C))
+
+#define NFI_FIFODATA0_REG32 ((volatile P_U32)(NFI_BASE+0x0190))
+#define NFI_FIFODATA1_REG32 ((volatile P_U32)(NFI_BASE+0x0194))
+#define NFI_FIFODATA2_REG32 ((volatile P_U32)(NFI_BASE+0x0198))
+#define NFI_FIFODATA3_REG32 ((volatile P_U32)(NFI_BASE+0x019C))
+#define NFI_MASTERSTA_REG16 ((volatile P_U16)(NFI_BASE+0x0210))
+
+
+/*******************************************************************************
+ * NFI Register Field Definition
+ *******************************************************************************/
+
+/* NFI_CNFG */
+#define CNFG_AHB (0x0001)
+#define CNFG_READ_EN (0x0002)
+#define CNFG_DMA_BURST_EN (0x0004)
+#define CNFG_BYTE_RW (0x0040)
+#define CNFG_HW_ECC_EN (0x0100)
+#define CNFG_AUTO_FMT_EN (0x0200)
+#define CNFG_OP_IDLE (0x0000)
+#define CNFG_OP_READ (0x1000)
+#define CNFG_OP_SRD (0x2000)
+#define CNFG_OP_PRGM (0x3000)
+#define CNFG_OP_ERASE (0x4000)
+#define CNFG_OP_RESET (0x5000)
+#define CNFG_OP_CUST (0x6000)
+#define CNFG_OP_MODE_MASK (0x7000)
+#define CNFG_OP_MODE_SHIFT (12)
+
+/* NFI_PAGEFMT */
+#define PAGEFMT_512 (0x0000)
+#define PAGEFMT_2K (0x0001)
+#define PAGEFMT_4K (0x0002)
+
+#define PAGEFMT_PAGE_MASK (0x0003)
+
+#define PAGEFMT_DBYTE_EN (0x0008)
+
+#define PAGEFMT_SPARE_16 (0x0000)
+#define PAGEFMT_SPARE_26 (0x0001)
+#define PAGEFMT_SPARE_27 (0x0002)
+#define PAGEFMT_SPARE_28 (0x0003)
+#define PAGEFMT_SPARE_MASK (0x0030)
+#define PAGEFMT_SPARE_SHIFT (4)
+
+#define PAGEFMT_FDM_MASK (0x0F00)
+#define PAGEFMT_FDM_SHIFT (8)
+
+#define PAGEFMT_FDM_ECC_MASK (0xF000)
+#define PAGEFMT_FDM_ECC_SHIFT (12)
+
+/* NFI_CON */
+#define CON_FIFO_FLUSH (0x0001)
+#define CON_NFI_RST (0x0002)
+#define CON_NFI_SRD (0x0010)
+
+#define CON_NFI_NOB_MASK (0x0060)
+#define CON_NFI_NOB_SHIFT (5)
+
+#define CON_NFI_BRD (0x0100)
+#define CON_NFI_BWR (0x0200)
+
+#define CON_NFI_SEC_MASK (0xF000)
+#define CON_NFI_SEC_SHIFT (12)
+
+/* NFI_ACCCON */
+#define ACCCON_SETTING ()
+
+/* NFI_INTR_EN */
+#define INTR_RD_DONE_EN (0x0001)
+#define INTR_WR_DONE_EN (0x0002)
+#define INTR_RST_DONE_EN (0x0004)
+#define INTR_ERASE_DONE_EN (0x0008)
+#define INTR_BSY_RTN_EN (0x0010)
+#define INTR_ACC_LOCK_EN (0x0020)
+#define INTR_AHB_DONE_EN (0x0040)
+#define INTR_ALL_INTR_DE (0x0000)
+#define INTR_ALL_INTR_EN (0x007F)
+
+/* NFI_INTR */
+#define INTR_RD_DONE (0x0001)
+#define INTR_WR_DONE (0x0002)
+#define INTR_RST_DONE (0x0004)
+#define INTR_ERASE_DONE (0x0008)
+#define INTR_BSY_RTN (0x0010)
+#define INTR_ACC_LOCK (0x0020)
+#define INTR_AHB_DONE (0x0040)
+
+/* NFI_ADDRNOB */
+#define ADDR_COL_NOB_MASK (0x0003)
+#define ADDR_COL_NOB_SHIFT (0)
+#define ADDR_ROW_NOB_MASK (0x0030)
+#define ADDR_ROW_NOB_SHIFT (4)
+
+/* NFI_STA */
+#define STA_READ_EMPTY (0x00001000)
+#define STA_ACC_LOCK (0x00000010)
+#define STA_CMD_STATE (0x00000001)
+#define STA_ADDR_STATE (0x00000002)
+#define STA_DATAR_STATE (0x00000004)
+#define STA_DATAW_STATE (0x00000008)
+
+#define STA_NAND_FSM_MASK (0x1F000000)
+#define STA_NAND_BUSY (0x00000100)
+#define STA_NAND_BUSY_RETURN (0x00000200)
+#define STA_NFI_FSM_MASK (0x000F0000)
+#define STA_NFI_OP_MASK (0x0000000F)
+
+/* NFI_FIFOSTA */
+#define FIFO_RD_EMPTY (0x0040)
+#define FIFO_RD_FULL (0x0080)
+#define FIFO_WR_FULL (0x8000)
+#define FIFO_WR_EMPTY (0x4000)
+#define FIFO_RD_REMAIN(x) (0x1F&(x))
+#define FIFO_WR_REMAIN(x) ((0x1F00&(x))>>8)
+
+/* NFI_ADDRCNTR */
+#define ADDRCNTR_CNTR(x) ((0xF000&(x))>>12)
+#define ADDRCNTR_OFFSET(x) (0x03FF&(x))
+
+/* NFI_LOCK */
+#define NFI_LOCK_ON (0x0001)
+
+/* NFI_LOCKANOB */
+#define PROG_RADD_NOB_MASK (0x7000)
+#define PROG_RADD_NOB_SHIFT (12)
+#define PROG_CADD_NOB_MASK (0x0300)
+#define PROG_CADD_NOB_SHIFT (8)
+#define ERASE_RADD_NOB_MASK (0x0070)
+#define ERASE_RADD_NOB_SHIFT (4)
+#define ERASE_CADD_NOB_MASK (0x0007)
+#define ERASE_CADD_NOB_SHIFT (0)
+
+/*******************************************************************************
+ * ECC Register Definition
+ *******************************************************************************/
+
+#define ECC_ENCCON_REG16 ((volatile P_U16)(NFIECC_BASE+0x0000))
+#define ECC_ENCCNFG_REG32 ((volatile P_U32)(NFIECC_BASE+0x0004))
+#define ECC_ENCDIADDR_REG32 ((volatile P_U32)(NFIECC_BASE+0x0008))
+#define ECC_ENCIDLE_REG32 ((volatile P_U32)(NFIECC_BASE+0x000C))
+#define ECC_ENCPAR0_REG32 ((volatile P_U32)(NFIECC_BASE+0x0010))
+#define ECC_ENCPAR1_REG32 ((volatile P_U32)(NFIECC_BASE+0x0014))
+#define ECC_ENCPAR2_REG32 ((volatile P_U32)(NFIECC_BASE+0x0018))
+#define ECC_ENCPAR3_REG32 ((volatile P_U32)(NFIECC_BASE+0x001C))
+#define ECC_ENCPAR4_REG32 ((volatile P_U32)(NFIECC_BASE+0x0020))
+#define ECC_ENCSTA_REG32 ((volatile P_U32)(NFIECC_BASE+0x0024))
+#define ECC_ENCIRQEN_REG16 ((volatile P_U16)(NFIECC_BASE+0x0028))
+#define ECC_ENCIRQSTA_REG16 ((volatile P_U16)(NFIECC_BASE+0x002C))
+
+#define ECC_DECCON_REG16 ((volatile P_U16)(NFIECC_BASE+0x0100))
+#define ECC_DECCNFG_REG32 ((volatile P_U32)(NFIECC_BASE+0x0104))
+#define ECC_DECDIADDR_REG32 ((volatile P_U32)(NFIECC_BASE+0x0108))
+#define ECC_DECIDLE_REG16 ((volatile P_U16)(NFIECC_BASE+0x010C))
+#define ECC_DECFER_REG16 ((volatile P_U16)(NFIECC_BASE+0x0110))
+#define ECC_DECENUM_REG32 ((volatile P_U32)(NFIECC_BASE+0x0114))
+#define ECC_DECDONE_REG16 ((volatile P_U16)(NFIECC_BASE+0x0118))
+#define ECC_DECEL0_REG32 ((volatile P_U32)(NFIECC_BASE+0x011C))
+#define ECC_DECEL1_REG32 ((volatile P_U32)(NFIECC_BASE+0x0120))
+#define ECC_DECEL2_REG32 ((volatile P_U32)(NFIECC_BASE+0x0124))
+#define ECC_DECEL3_REG32 ((volatile P_U32)(NFIECC_BASE+0x0128))
+#define ECC_DECEL4_REG32 ((volatile P_U32)(NFIECC_BASE+0x012C))
+#define ECC_DECEL5_REG32 ((volatile P_U32)(NFIECC_BASE+0x0130))
+#define ECC_DECIRQEN_REG16 ((volatile P_U16)(NFIECC_BASE+0x0134))
+#define ECC_DECIRQSTA_REG16 ((volatile P_U16)(NFIECC_BASE+0x0138))
+#define ECC_FDMADDR_REG32 ((volatile P_U32)(NFIECC_BASE+0x013C))
+#define ECC_DECFSM_REG32 ((volatile P_U32)(NFIECC_BASE+0x0140))
+#define ECC_SYNSTA_REG32 ((volatile P_U32)(NFIECC_BASE+0x0144))
+#define ECC_DECNFIDI_REG32 ((volatile P_U32)(NFIECC_BASE+0x0148))
+#define ECC_SYN0_REG32 ((volatile P_U32)(NFIECC_BASE+0x014C))
+
+/*******************************************************************************
+ * ECC register definition
+ *******************************************************************************/
+/* ECC_ENCON */
+#define ENC_EN (0x0001)
+#define ENC_DE (0x0000)
+
+/* ECC_ENCCNFG */
+#define ECC_CNFG_ECC4 (0x0000)
+#define ECC_CNFG_ECC6 (0x0001)
+#define ECC_CNFG_ECC8 (0x0002)
+#define ECC_CNFG_ECC10 (0x0003)
+#define ECC_CNFG_ECC12 (0x0004)
+#define ECC_CNFG_ECC_MASK (0x00000007)
+
+#define ENC_CNFG_NFI (0x0010)
+#define ENC_CNFG_MODE_MASK (0x0010)
+
+#define ENC_CNFG_META6 (0x10300000)
+#define ENC_CNFG_META8 (0x10400000)
+
+#define ENC_CNFG_MSG_MASK (0x1FFF0000)
+#define ENC_CNFG_MSG_SHIFT (0x10)
+
+/* ECC_ENCIDLE */
+#define ENC_IDLE (0x0001)
+
+/* ECC_ENCSTA */
+#define STA_FSM (0x001F)
+#define STA_COUNT_PS (0xFF10)
+#define STA_COUNT_MS (0x3FFF0000)
+
+/* ECC_ENCIRQEN */
+#define ENC_IRQEN (0x0001)
+
+/* ECC_ENCIRQSTA */
+#define ENC_IRQSTA (0x0001)
+
+/* ECC_DECCON */
+#define DEC_EN (0x0001)
+#define DEC_DE (0x0000)
+
+/* ECC_ENCCNFG */
+#define DEC_CNFG_ECC4 (0x0000)
+//#define DEC_CNFG_ECC6 (0x0001)
+//#define DEC_CNFG_ECC12 (0x0002)
+#define DEC_CNFG_NFI (0x0010)
+//#define DEC_CNFG_META6 (0x10300000)
+//#define DEC_CNFG_META8 (0x10400000)
+
+#define DEC_CNFG_FER (0x01000)
+#define DEC_CNFG_EL (0x02000)
+#define DEC_CNFG_CORRECT (0x03000)
+#define DEC_CNFG_TYPE_MASK (0x03000)
+
+#define DEC_CNFG_EMPTY_EN (0x80000000)
+
+#define DEC_CNFG_CODE_MASK (0x1FFF0000)
+#define DEC_CNFG_CODE_SHIFT (0x10)
+
+/* ECC_DECIDLE */
+#define DEC_IDLE (0x0001)
+
+/* ECC_DECFER */
+#define DEC_FER0 (0x0001)
+#define DEC_FER1 (0x0002)
+#define DEC_FER2 (0x0004)
+#define DEC_FER3 (0x0008)
+#define DEC_FER4 (0x0010)
+#define DEC_FER5 (0x0020)
+#define DEC_FER6 (0x0040)
+#define DEC_FER7 (0x0080)
+
+/* ECC_DECENUM */
+#define ERR_NUM0 (0x0000000F)
+#define ERR_NUM1 (0x000000F0)
+#define ERR_NUM2 (0x00000F00)
+#define ERR_NUM3 (0x0000F000)
+#define ERR_NUM4 (0x000F0000)
+#define ERR_NUM5 (0x00F00000)
+#define ERR_NUM6 (0x0F000000)
+#define ERR_NUM7 (0xF0000000)
+
+/* ECC_DECDONE */
+#define DEC_DONE0 (0x0001)
+#define DEC_DONE1 (0x0002)
+#define DEC_DONE2 (0x0004)
+#define DEC_DONE3 (0x0008)
+#define DEC_DONE4 (0x0010)
+#define DEC_DONE5 (0x0020)
+#define DEC_DONE6 (0x0040)
+#define DEC_DONE7 (0x0080)
+
+/* ECC_DECIRQEN */
+#define DEC_IRQEN (0x0001)
+
+/* ECC_DECIRQSTA */
+#define DEC_IRQSTA (0x0001)
+
+#define CHIPVER_ECO_1 (0x8a00)
+#define CHIPVER_ECO_2 (0x8a01)
+
+//#define NAND_PFM
+
+/*******************************************************************************
+ * Data Structure Definition
+ *******************************************************************************/
+struct mtk_nand_host
+{
+ struct nand_chip nand_chip;
+ struct mtd_info *mtd;
+ struct mtk_nand_host_hw *hw;
+};
+
+struct NAND_CMD
+{
+ u32 u4ColAddr;
+ u32 u4RowAddr;
+ u32 u4OOBRowAddr;
+ u8 au1OOB[288];
+ u8* pDataBuf;
+#ifdef NAND_PFM
+ u32 pureReadOOB;
+ u32 pureReadOOBNum;
+#endif
+};
+
+/*
+ * ECC layout control structure. Exported to userspace for
+ * diagnosis and to allow creation of raw images
+struct nand_ecclayout {
+ uint32_t eccbytes;
+ uint32_t eccpos[64];
+ uint32_t oobavail;
+ struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
+};
+*/
+#define __DEBUG_NAND 1 /* Debug information on/off */
+
+/* Debug message event */
+#define DBG_EVT_NONE 0x00000000 /* No event */
+#define DBG_EVT_INIT 0x00000001 /* Initial related event */
+#define DBG_EVT_VERIFY 0x00000002 /* Verify buffer related event */
+#define DBG_EVT_PERFORMANCE 0x00000004 /* Performance related event */
+#define DBG_EVT_READ 0x00000008 /* Read related event */
+#define DBG_EVT_WRITE 0x00000010 /* Write related event */
+#define DBG_EVT_ERASE 0x00000020 /* Erase related event */
+#define DBG_EVT_BADBLOCK 0x00000040 /* Badblock related event */
+#define DBG_EVT_POWERCTL 0x00000080 /* Suspend/Resume related event */
+
+#define DBG_EVT_ALL 0xffffffff
+
+#define DBG_EVT_MASK (DBG_EVT_INIT)
+
+#if __DEBUG_NAND
+#define MSG(evt, fmt, args...) \
+do { \
+ if ((DBG_EVT_##evt) & DBG_EVT_MASK) { \
+ printk(fmt, ##args); \
+ } \
+} while(0)
+
+#define MSG_FUNC_ENTRY(f) MSG(FUC, "<FUN_ENT>: %s\n", __FUNCTION__)
+#else
+#define MSG(evt, fmt, args...) do{}while(0)
+#define MSG_FUNC_ENTRY(f) do{}while(0)
+#endif
+
+#define RAMDOM_READ 1<<0
+#define CACHE_READ 1<<1
+
+typedef struct
+{
+ u16 id; //deviceid+menuid
+ u32 ext_id;
+ u8 addr_cycle;
+ u8 iowidth;
+ u16 totalsize;
+ u16 blocksize;
+ u16 pagesize;
+ u16 sparesize;
+ u32 timmingsetting;
+ char devciename[14];
+ u32 advancedmode; //
+}flashdev_info,*pflashdev_info;
+
+/* NAND driver */
+#if 0
+struct mtk_nand_host_hw {
+ unsigned int nfi_bus_width; /* NFI_BUS_WIDTH */
+ unsigned int nfi_access_timing; /* NFI_ACCESS_TIMING */
+ unsigned int nfi_cs_num; /* NFI_CS_NUM */
+ unsigned int nand_sec_size; /* NAND_SECTOR_SIZE */
+ unsigned int nand_sec_shift; /* NAND_SECTOR_SHIFT */
+ unsigned int nand_ecc_size;
+ unsigned int nand_ecc_bytes;
+ unsigned int nand_ecc_mode;
+};
+extern struct mtk_nand_host_hw mt7621_nand_hw;
+extern u32 CFG_BLOCKSIZE;
+#endif
+#endif
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -48,7 +48,7 @@
#include <linux/mtd/partitions.h>
#include <linux/of.h>
-static int nand_get_device(struct mtd_info *mtd, int new_state);
+int nand_get_device(struct mtd_info *mtd, int new_state);
static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops);
@@ -240,7 +240,7 @@ static int check_offs_len(struct mtd_inf
*
* Release chip lock and wake up anyone waiting on the device.
*/
-static void nand_release_device(struct mtd_info *mtd)
+void nand_release_device(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd_to_nand(mtd);
@@ -968,7 +968,7 @@ static void panic_nand_get_device(struct
*
* Get the device and lock it for exclusive access
*/
-static int
+int
nand_get_device(struct mtd_info *mtd, int new_state)
{
struct nand_chip *chip = mtd_to_nand(mtd);
--- /dev/null
+++ b/drivers/mtd/nand/nand_def.h
@@ -0,0 +1,123 @@
+#ifndef __NAND_DEF_H__
+#define __NAND_DEF_H__
+
+#define VERSION "v2.1 Fix AHB virt2phys error"
+#define MODULE_NAME "# MTK NAND #"
+#define PROCNAME "driver/nand"
+
+#undef TESTTIME
+//#define __UBOOT_NAND__ 1
+#define __KERNEL_NAND__ 1
+//#define __PRELOADER_NAND__ 1
+//#define PMT 1
+//#define _MTK_NAND_DUMMY_DRIVER
+//#define CONFIG_BADBLOCK_CHECK 1
+//#ifdef CONFIG_BADBLOCK_CHECK
+//#define MTK_NAND_BMT 1
+//#endif
+#define ECC_ENABLE 1
+#define MANUAL_CORRECT 1
+//#define __INTERNAL_USE_AHB_MODE__ (0)
+#define SKIP_BAD_BLOCK
+#define FACT_BBT
+
+#ifndef NAND_OTP_SUPPORT
+#define NAND_OTP_SUPPORT 0
+#endif
+
+/*******************************************************************************
+ * Macro definition
+ *******************************************************************************/
+//#define NFI_SET_REG32(reg, value) (DRV_WriteReg32(reg, DRV_Reg32(reg) | (value)))
+//#define NFI_SET_REG16(reg, value) (DRV_WriteReg16(reg, DRV_Reg16(reg) | (value)))
+//#define NFI_CLN_REG32(reg, value) (DRV_WriteReg32(reg, DRV_Reg32(reg) & (~(value))))
+//#define NFI_CLN_REG16(reg, value) (DRV_WriteReg16(reg, DRV_Reg16(reg) & (~(value))))
+
+#if defined (__KERNEL_NAND__)
+#define NFI_SET_REG32(reg, value) \
+do { \
+ g_value = (DRV_Reg32(reg) | (value));\
+ DRV_WriteReg32(reg, g_value); \
+} while(0)
+
+#define NFI_SET_REG16(reg, value) \
+do { \
+ g_value = (DRV_Reg16(reg) | (value));\
+ DRV_WriteReg16(reg, g_value); \
+} while(0)
+
+#define NFI_CLN_REG32(reg, value) \
+do { \
+ g_value = (DRV_Reg32(reg) & (~(value)));\
+ DRV_WriteReg32(reg, g_value); \
+} while(0)
+
+#define NFI_CLN_REG16(reg, value) \
+do { \
+ g_value = (DRV_Reg16(reg) & (~(value)));\
+ DRV_WriteReg16(reg, g_value); \
+} while(0)
+#endif
+
+#define NFI_WAIT_STATE_DONE(state) do{;}while (__raw_readl(NFI_STA_REG32) & state)
+#define NFI_WAIT_TO_READY() do{;}while (!(__raw_readl(NFI_STA_REG32) & STA_BUSY2READY))
+
+
+#define NAND_SECTOR_SIZE (512)
+#define OOB_PER_SECTOR (16)
+#define OOB_AVAI_PER_SECTOR (8)
+
+#ifndef PART_SIZE_BMTPOOL
+#define BMT_POOL_SIZE (80)
+#else
+#define BMT_POOL_SIZE (PART_SIZE_BMTPOOL)
+#endif
+
+#define PMT_POOL_SIZE (2)
+
+#define TIMEOUT_1 0x1fff
+#define TIMEOUT_2 0x8ff
+#define TIMEOUT_3 0xffff
+#define TIMEOUT_4 0xffff//5000 //PIO
+
+
+/* temporarity definiation */
+#if !defined (__KERNEL_NAND__)
+#define KERN_INFO
+#define KERN_WARNING
+#define KERN_ERR
+#define PAGE_SIZE (4096)
+#endif
+#define AddStorageTrace //AddStorageTrace
+#define STORAGE_LOGGER_MSG_NAND 0
+#define NFI_BASE RALINK_NAND_CTRL_BASE
+#define NFIECC_BASE RALINK_NANDECC_CTRL_BASE
+
+#ifdef __INTERNAL_USE_AHB_MODE__
+#define MT65xx_POLARITY_LOW 0
+#define MT65XX_PDN_PERI_NFI 0
+#define MT65xx_EDGE_SENSITIVE 0
+#define MT6575_NFI_IRQ_ID (58)
+#endif
+
+#if defined (__KERNEL_NAND__)
+#define RALINK_REG(x) (*((volatile u32 *)(x)))
+#define __virt_to_phys(x) virt_to_phys((volatile void*)x)
+#else
+#define CONFIG_MTD_NAND_VERIFY_WRITE (1)
+#define printk printf
+#define ra_dbg printf
+#define BUG() //BUG()
+#define BUG_ON(x) //BUG_ON()
+#define NUM_PARTITIONS 1
+#endif
+
+#define NFI_DEFAULT_ACCESS_TIMING (0x30C77fff) //(0x44333)
+
+//uboot only support 1 cs
+#define NFI_CS_NUM (1)
+#define NFI_DEFAULT_CS (0)
+
+#include "mt6575_typedefs.h"
+
+#endif /* __NAND_DEF_H__ */
--- /dev/null
+++ b/drivers/mtd/nand/nand_device_list.h
@@ -0,0 +1,60 @@
+/* Copyright Statement:
+ *
+ * This software/firmware and related documentation ("MediaTek Software") are
+ * protected under relevant copyright laws. The information contained herein
+ * is confidential and proprietary to MediaTek Inc. and/or its licensors.
+ * Without the prior written permission of MediaTek inc. and/or its licensors,
+ * any reproduction, modification, use or disclosure of MediaTek Software,
+ * and information contained herein, in whole or in part, shall be strictly prohibited.
+ */
+/* MediaTek Inc. (C) 2010. All rights reserved.
+ *
+ * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
+ * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
+ * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
+ * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
+ * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
+ * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
+ * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
+ * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
+ * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
+ * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
+ * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
+ * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
+ * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
+ * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
+ * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
+ * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
+ *
+ * The following software/firmware and/or related documentation ("MediaTek Software")
+ * have been modified by MediaTek Inc. All revisions are subject to any receiver's
+ * applicable license agreements with MediaTek Inc.
+ */
+
+#ifndef __NAND_DEVICE_LIST_H__
+#define __NAND_DEVICE_LIST_H__
+
+static const flashdev_info gen_FlashTable[]={
+ {0x20BC, 0x105554, 5, 16, 512, 128, 2048, 64, 0x1123, "EHD013151MA_5", 0},
+ {0xECBC, 0x005554, 5, 16, 512, 128, 2048, 64, 0x1123, "K524G2GACB_A0", 0},
+ {0x2CBC, 0x905556, 5, 16, 512, 128, 2048, 64, 0x21044333, "MT29C4G96MAZA", 0},
+ {0x2CDA, 0x909506, 5, 8, 256, 128, 2048, 64, 0x30C77fff, "MT29F2G08ABAE", 0},
+ {0xADBC, 0x905554, 5, 16, 512, 128, 2048, 64, 0x10801011, "H9DA4GH4JJAMC", 0},
+ {0x01F1, 0x801D01, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "S34ML01G100TF", 0},
+ {0x92F1, 0x8095FF, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "F59L1G81A", 0},
+ {0xC8D1, 0x809540, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "F59L1G81MA", 0},
+ {0xC8DA, 0x909544, 5, 8, 256, 128, 2048, 64, 0x30C77fff, "F59L2G81A", 0},
+ {0xC8DC, 0x909554, 5, 8, 512, 128, 2048, 64, 0x30C77fff, "F59L4G81A", 0},
+ {0xECD3, 0x519558, 5, 8, 1024, 128, 2048, 64, 0x44333, "K9K8G8000", 0},
+ {0xC2F1, 0x801DC2, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "MX30LF1G08AA", 0},
+ {0xC2F1, 0x809502, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "MX30LF1G18AC", 0},
+ {0x98D3, 0x902676, 5, 8, 1024, 256, 4096, 224, 0x00C25332, "TC58NVG3S0F", 0},
+ {0x01DA, 0x909546, 5, 8, 256, 128, 2048, 128, 0x30C77fff, "S34ML02G200TF", 0},
+ {0x01DC, 0x909556, 5, 8, 512, 128, 2048, 128, 0x30C77fff, "S34ML04G200TF", 0},
+ {0x0000, 0x000000, 0, 0, 0, 0, 0, 0, 0, "xxxxxxxxxx", 0},
+};
+
+
+#endif
--- /dev/null
+++ b/drivers/mtd/nand/partition.h
@@ -0,0 +1,115 @@
+/* Copyright Statement:
+ *
+ * This software/firmware and related documentation ("MediaTek Software") are
+ * protected under relevant copyright laws. The information contained herein
+ * is confidential and proprietary to MediaTek Inc. and/or its licensors.
+ * Without the prior written permission of MediaTek inc. and/or its licensors,
+ * any reproduction, modification, use or disclosure of MediaTek Software,
+ * and information contained herein, in whole or in part, shall be strictly prohibited.
+ */
+/* MediaTek Inc. (C) 2010. All rights reserved.
+ *
+ * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
+ * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
+ * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
+ * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
+ * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
+ * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
+ * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
+ * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
+ * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
+ * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
+ * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
+ * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
+ * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
+ * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
+ * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
+ * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
+ *
+ * The following software/firmware and/or related documentation ("MediaTek Software")
+ * have been modified by MediaTek Inc. All revisions are subject to any receiver's
+ * applicable license agreements with MediaTek Inc.
+ */
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/rawnand.h>
+#include <linux/mtd/partitions.h>
+
+#define RECONFIG_PARTITION_SIZE 1
+
+#define MTD_BOOT_PART_SIZE 0x80000
+#define MTD_CONFIG_PART_SIZE 0x20000
+#define MTD_FACTORY_PART_SIZE 0x20000
+
+extern unsigned int CFG_BLOCKSIZE;
+#define LARGE_MTD_BOOT_PART_SIZE (CFG_BLOCKSIZE<<2)
+#define LARGE_MTD_CONFIG_PART_SIZE (CFG_BLOCKSIZE<<2)
+#define LARGE_MTD_FACTORY_PART_SIZE (CFG_BLOCKSIZE<<1)
+
+/*=======================================================================*/
+/* NAND PARTITION Mapping */
+/*=======================================================================*/
+//#ifdef CONFIG_MTD_PARTITIONS
+static struct mtd_partition g_pasStatic_Partition[] = {
+ {
+ name: "ALL",
+ size: MTDPART_SIZ_FULL,
+ offset: 0,
+ },
+ /* Put your own partition definitions here */
+ {
+ name: "Bootloader",
+ size: MTD_BOOT_PART_SIZE,
+ offset: 0,
+ }, {
+ name: "Config",
+ size: MTD_CONFIG_PART_SIZE,
+ offset: MTDPART_OFS_APPEND
+ }, {
+ name: "Factory",
+ size: MTD_FACTORY_PART_SIZE,
+ offset: MTDPART_OFS_APPEND
+#ifdef CONFIG_RT2880_ROOTFS_IN_FLASH
+ }, {
+ name: "Kernel",
+ size: MTD_KERN_PART_SIZE,
+ offset: MTDPART_OFS_APPEND,
+ }, {
+ name: "RootFS",
+ size: MTD_ROOTFS_PART_SIZE,
+ offset: MTDPART_OFS_APPEND,
+#ifdef CONFIG_ROOTFS_IN_FLASH_NO_PADDING
+ }, {
+ name: "Kernel_RootFS",
+ size: MTD_KERN_PART_SIZE + MTD_ROOTFS_PART_SIZE,
+ offset: MTD_BOOT_PART_SIZE + MTD_CONFIG_PART_SIZE + MTD_FACTORY_PART_SIZE,
+#endif
+#else //CONFIG_RT2880_ROOTFS_IN_RAM
+ }, {
+ name: "Kernel",
+ size: 0x10000,
+ offset: MTDPART_OFS_APPEND,
+#endif
+#ifdef CONFIG_DUAL_IMAGE
+ }, {
+ name: "Kernel2",
+ size: MTD_KERN2_PART_SIZE,
+ offset: MTD_KERN2_PART_OFFSET,
+#ifdef CONFIG_RT2880_ROOTFS_IN_FLASH
+ }, {
+ name: "RootFS2",
+ size: MTD_ROOTFS2_PART_SIZE,
+ offset: MTD_ROOTFS2_PART_OFFSET,
+#endif
+#endif
+ }
+
+};
+
+#define NUM_PARTITIONS ARRAY_SIZE(g_pasStatic_Partition)
+extern int part_num; // = NUM_PARTITIONS;
+//#endif
+#undef RECONFIG_PARTITION_SIZE
+
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