mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 18:19:02 +00:00
339 lines
7.9 KiB
C
339 lines
7.9 KiB
C
/*
|
|
* RouterBoard 500 Platform devices
|
|
*
|
|
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
|
|
* Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/string.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/mtd/nand.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/partitions.h>
|
|
#include <linux/gpio_keys.h>
|
|
#include <linux/input.h>
|
|
|
|
#include <asm/bootinfo.h>
|
|
|
|
#include <asm/rc32434/rc32434.h>
|
|
#include <asm/rc32434/dma.h>
|
|
#include <asm/rc32434/dma_v.h>
|
|
#include <asm/rc32434/eth.h>
|
|
#include <asm/rc32434/rb.h>
|
|
|
|
#define ETH0_DMA_RX_IRQ GROUP1_IRQ_BASE + 0
|
|
#define ETH0_DMA_TX_IRQ GROUP1_IRQ_BASE + 1
|
|
#define ETH0_RX_OVR_IRQ GROUP3_IRQ_BASE + 9
|
|
#define ETH0_TX_UND_IRQ GROUP3_IRQ_BASE + 10
|
|
|
|
#define ETH0_RX_DMA_ADDR (DMA0_PhysicalAddress + 0*DMA_CHAN_OFFSET)
|
|
#define ETH0_TX_DMA_ADDR (DMA0_PhysicalAddress + 1*DMA_CHAN_OFFSET)
|
|
|
|
/* NAND definitions */
|
|
#define MEM32(x) *((volatile unsigned *) (x))
|
|
|
|
#define GPIO_RDY (1 << 0x08)
|
|
#define GPIO_WPX (1 << 0x09)
|
|
#define GPIO_ALE (1 << 0x0a)
|
|
#define GPIO_CLE (1 << 0x0b)
|
|
|
|
extern char* board_type;
|
|
|
|
static struct resource korina_dev0_res[] = {
|
|
{
|
|
.name = "korina_regs",
|
|
.start = ETH0_PhysicalAddress,
|
|
.end = ETH0_PhysicalAddress + sizeof(ETH_t),
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.name = "korina_rx",
|
|
.start = ETH0_DMA_RX_IRQ,
|
|
.end = ETH0_DMA_RX_IRQ,
|
|
.flags = IORESOURCE_IRQ
|
|
}, {
|
|
.name = "korina_tx",
|
|
.start = ETH0_DMA_TX_IRQ,
|
|
.end = ETH0_DMA_TX_IRQ,
|
|
.flags = IORESOURCE_IRQ
|
|
}, {
|
|
.name = "korina_ovr",
|
|
.start = ETH0_RX_OVR_IRQ,
|
|
.end = ETH0_RX_OVR_IRQ,
|
|
.flags = IORESOURCE_IRQ
|
|
}, {
|
|
.name = "korina_und",
|
|
.start = ETH0_TX_UND_IRQ,
|
|
.end = ETH0_TX_UND_IRQ,
|
|
.flags = IORESOURCE_IRQ
|
|
}, {
|
|
.name = "korina_dma_rx",
|
|
.start = ETH0_RX_DMA_ADDR,
|
|
.end = ETH0_RX_DMA_ADDR + DMA_CHAN_OFFSET - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.name = "korina_dma_tx",
|
|
.start = ETH0_TX_DMA_ADDR,
|
|
.end = ETH0_TX_DMA_ADDR + DMA_CHAN_OFFSET - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
}
|
|
};
|
|
|
|
static struct korina_device korina_dev0_data = {
|
|
.name = "korina0",
|
|
.mac = {0xde, 0xca, 0xff, 0xc0, 0xff, 0xee}
|
|
};
|
|
|
|
static struct platform_device korina_dev0 = {
|
|
.id = 0,
|
|
.name = "korina",
|
|
.dev.platform_data = &korina_dev0_data,
|
|
.resource = korina_dev0_res,
|
|
.num_resources = ARRAY_SIZE(korina_dev0_res),
|
|
};
|
|
|
|
#define CF_GPIO_NUM 13
|
|
|
|
static struct resource cf_slot0_res[] = {
|
|
{
|
|
.name = "cf_membase",
|
|
.flags = IORESOURCE_MEM
|
|
}, {
|
|
.name = "cf_irq",
|
|
.start = (8 + 4 * 32 + CF_GPIO_NUM), /* 149 */
|
|
.end = (8 + 4 * 32 + CF_GPIO_NUM),
|
|
.flags = IORESOURCE_IRQ
|
|
}
|
|
};
|
|
|
|
static struct cf_device cf_slot0_data = {
|
|
.gpio_pin = 13
|
|
};
|
|
|
|
static struct platform_device cf_slot0 = {
|
|
.id = 0,
|
|
.name = "rb500-cf",
|
|
.dev.platform_data = &cf_slot0_data,
|
|
.resource = cf_slot0_res,
|
|
.num_resources = ARRAY_SIZE(cf_slot0_res),
|
|
};
|
|
|
|
/* Resources and device for NAND. There is no data needed and no irqs, so just define the memory used. */
|
|
|
|
/*
|
|
* We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
|
|
* will not be able to find the kernel that we load. So set the oobinfo
|
|
* when creating the partitions
|
|
*/
|
|
static struct nand_ecclayout rb500_nand_ecclayout = {
|
|
.eccbytes = 6,
|
|
.eccpos = { 8, 9, 10, 13, 14, 15 },
|
|
.oobavail = 9,
|
|
.oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
|
|
};
|
|
|
|
int rb500_dev_ready(struct mtd_info *mtd)
|
|
{
|
|
return MEM32(IDT434_REG_BASE + GPIOD) & GPIO_RDY;
|
|
}
|
|
|
|
void rb500_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
|
|
{
|
|
struct nand_chip *chip = mtd->priv;
|
|
unsigned char orbits, nandbits;
|
|
|
|
if (ctrl & NAND_CTRL_CHANGE) {
|
|
|
|
orbits = (ctrl & NAND_CLE) << 1;
|
|
orbits |= (ctrl & NAND_ALE) >> 1;
|
|
|
|
nandbits = (~ctrl & NAND_CLE) << 1;
|
|
nandbits |= (~ctrl & NAND_ALE) >> 1;
|
|
|
|
changeLatchU5(orbits, nandbits);
|
|
}
|
|
if (cmd != NAND_CMD_NONE)
|
|
writeb(cmd, chip->IO_ADDR_W);
|
|
}
|
|
|
|
static struct resource nand_slot0_res[] = {
|
|
[0] = {
|
|
.name = "nand_membase",
|
|
.flags = IORESOURCE_MEM
|
|
}
|
|
};
|
|
|
|
struct platform_nand_data rb500_nand_data = {
|
|
.ctrl.dev_ready = rb500_dev_ready,
|
|
.ctrl.cmd_ctrl = rb500_cmd_ctrl,
|
|
};
|
|
|
|
static struct platform_device nand_slot0 = {
|
|
.name = "gen_nand",
|
|
.id = -1,
|
|
.resource = nand_slot0_res,
|
|
.num_resources = ARRAY_SIZE(nand_slot0_res),
|
|
.dev.platform_data = &rb500_nand_data,
|
|
};
|
|
|
|
static struct mtd_partition rb500_partition_info[] = {
|
|
{
|
|
.name = "Routerboard NAND boot",
|
|
.offset = 0,
|
|
.size = 4 * 1024 * 1024,
|
|
}, {
|
|
.name = "rootfs",
|
|
.offset = MTDPART_OFS_NXTBLK,
|
|
.size = MTDPART_SIZ_FULL,
|
|
}
|
|
};
|
|
|
|
static struct platform_device rb500_led = {
|
|
.name = "rb500-led",
|
|
.id = 0,
|
|
};
|
|
|
|
static struct gpio_keys_button rb500_gpio_btn[] = {
|
|
{
|
|
.gpio = 1,
|
|
.code = BTN_0,
|
|
.desc = "S1",
|
|
.active_low = 1,
|
|
}
|
|
};
|
|
|
|
static struct gpio_keys_platform_data rb500_gpio_btn_data = {
|
|
.buttons = rb500_gpio_btn,
|
|
.nbuttons = ARRAY_SIZE(rb500_gpio_btn),
|
|
};
|
|
|
|
static struct platform_device rb500_button = {
|
|
.name = "gpio-keys",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &rb500_gpio_btn_data,
|
|
}
|
|
};
|
|
|
|
static struct platform_device *rb500_devs[] = {
|
|
&korina_dev0,
|
|
&nand_slot0,
|
|
&cf_slot0,
|
|
&rb500_led,
|
|
&rb500_button
|
|
};
|
|
|
|
static void __init parse_mac_addr(char *macstr)
|
|
{
|
|
int i, j;
|
|
unsigned char result, value;
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
result = 0;
|
|
|
|
if (i != 5 && *(macstr + 2) != ':')
|
|
return;
|
|
|
|
for (j = 0; j < 2; j++) {
|
|
if (isxdigit(*macstr)
|
|
&& (value =
|
|
isdigit(*macstr) ? *macstr -
|
|
'0' : toupper(*macstr) - 'A' + 10) < 16) {
|
|
result = result * 16 + value;
|
|
macstr++;
|
|
} else
|
|
return;
|
|
}
|
|
|
|
macstr++;
|
|
korina_dev0_data.mac[i] = result;
|
|
}
|
|
}
|
|
|
|
|
|
/* DEVICE CONTROLLER 1 */
|
|
#define CFG_DC_DEV1 (void*)0xb8010010
|
|
#define CFG_DC_DEV2 (void*)0xb8010020
|
|
#define CFG_DC_DEVBASE 0x0
|
|
#define CFG_DC_DEVMASK 0x4
|
|
#define CFG_DC_DEVC 0x8
|
|
#define CFG_DC_DEVTC 0xC
|
|
|
|
/* NAND definitions */
|
|
#define NAND_CHIP_DELAY 25
|
|
|
|
static int rb500_nand_fixup(struct mtd_info *mtd)
|
|
{
|
|
struct nand_chip *chip = mtd->priv;
|
|
|
|
if (mtd->writesize == 512)
|
|
chip->ecc.layout = &rb500_nand_ecclayout;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __init rb500_nand_setup(void)
|
|
{
|
|
switch (mips_machtype) {
|
|
case MACH_MIKROTIK_RB532A:
|
|
changeLatchU5(LO_FOFF | LO_CEX, LO_ULED | LO_ALE | LO_CLE | LO_WPX);
|
|
break;
|
|
default:
|
|
changeLatchU5(LO_WPX | LO_FOFF | LO_CEX, LO_ULED | LO_ALE | LO_CLE);
|
|
break;
|
|
}
|
|
|
|
/* Setup NAND specific settings */
|
|
rb500_nand_data.chip.nr_chips = 1;
|
|
rb500_nand_data.chip.nr_partitions = ARRAY_SIZE(rb500_partition_info);
|
|
rb500_nand_data.chip.partitions = rb500_partition_info;
|
|
rb500_nand_data.chip.chip_delay = NAND_CHIP_DELAY;
|
|
rb500_nand_data.chip.options = NAND_NO_AUTOINCR;
|
|
|
|
rb500_nand_data.chip.chip_fixup = &rb500_nand_fixup;
|
|
}
|
|
|
|
|
|
static int __init plat_setup_devices(void)
|
|
{
|
|
/* Look for the CF card reader */
|
|
if (!readl(CFG_DC_DEV1 + CFG_DC_DEVMASK))
|
|
rb500_devs[1] = NULL;
|
|
else {
|
|
cf_slot0_res[0].start =
|
|
readl(CFG_DC_DEV1 + CFG_DC_DEVBASE);
|
|
cf_slot0_res[0].end = cf_slot0_res[0].start + 0x1000;
|
|
}
|
|
|
|
/* Read the NAND resources from the device controller */
|
|
nand_slot0_res[0].start = readl(CFG_DC_DEV2 + CFG_DC_DEVBASE);
|
|
nand_slot0_res[0].end = nand_slot0_res[0].start + 0x1000;
|
|
|
|
/* Initialise the NAND device */
|
|
rb500_nand_setup();
|
|
|
|
return platform_add_devices(rb500_devs, ARRAY_SIZE(rb500_devs));
|
|
}
|
|
|
|
static int __init setup_kmac(char *s)
|
|
{
|
|
printk("korina mac = %s\n", s);
|
|
parse_mac_addr(s);
|
|
return 0;
|
|
}
|
|
|
|
__setup("kmac=", setup_kmac);
|
|
|
|
arch_initcall(plat_setup_devices);
|