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openwrt/package/boot/uboot-mediatek/patches/100-11-env-add-support-for-NMBM-upper-MTD-layer.patch
Daniel Golle 537b423d9f
uboot-mediatek: update to U-Boot 2022.10 
Remove patches adding support for MT7621 which have been merged upsteam.
Patches for MT7981 and MT7986 have been merged too, but not in time to
be included in the 2022.10 release, so we have to keep carrying them
until the 2023.01 release.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-10-18 20:08:35 +01:00

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7.2 KiB
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From 240d98e6ad0aed3c11236aa40a60bbd6fe01fae5 Mon Sep 17 00:00:00 2001
From: Weijie Gao <weijie.gao@mediatek.com>
Date: Mon, 25 Jul 2022 10:50:46 +0800
Subject: [PATCH 45/71] env: add support for NMBM upper MTD layer
Add an env driver for NMBM upper MTD layer
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
cmd/nvedit.c | 3 +-
env/Kconfig | 19 ++++-
env/Makefile | 1 +
env/env.c | 3 +
env/nmbm.c | 155 +++++++++++++++++++++++++++++++++++++++++
include/env_internal.h | 1 +
tools/Makefile | 1 +
7 files changed, 180 insertions(+), 3 deletions(-)
create mode 100644 env/nmbm.c
--- a/cmd/nvedit.c
+++ b/cmd/nvedit.c
@@ -50,6 +50,7 @@ DECLARE_GLOBAL_DATA_PTR;
defined(CONFIG_ENV_IS_IN_EXT4) || \
defined(CONFIG_ENV_IS_IN_MTD) || \
defined(CONFIG_ENV_IS_IN_NAND) || \
+ defined(CONFIG_ENV_IS_IN_NMBM) || \
defined(CONFIG_ENV_IS_IN_NVRAM) || \
defined(CONFIG_ENV_IS_IN_ONENAND) || \
defined(CONFIG_ENV_IS_IN_SATA) || \
@@ -64,7 +65,7 @@ DECLARE_GLOBAL_DATA_PTR;
#if !defined(ENV_IS_IN_DEVICE) && \
!defined(CONFIG_ENV_IS_NOWHERE)
# error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|MMC|FAT|EXT4|MTD|\
-NAND|NVRAM|ONENAND|SATA|SPI_FLASH|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE
+NAND|NMBM|NVRAM|ONENAND|SATA|SPI_FLASH|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE
#endif
/*
--- a/env/Kconfig
+++ b/env/Kconfig
@@ -53,7 +53,7 @@ config ENV_IS_NOWHERE
!ENV_IS_IN_MMC && !ENV_IS_IN_NAND && \
!ENV_IS_IN_NVRAM && !ENV_IS_IN_ONENAND && \
!ENV_IS_IN_REMOTE && !ENV_IS_IN_SPI_FLASH && \
- !ENV_IS_IN_UBI && !ENV_IS_IN_MTD
+ !ENV_IS_IN_UBI && !ENV_IS_IN_NMBM && !ENV_IS_IN_MTD
help
Define this if you don't want to or can't have an environment stored
on a storage medium. In this case the environment will still exist
@@ -303,6 +303,21 @@ config ENV_RANGE
Specifying a range with more erase blocks than are needed to hold
CONFIG_ENV_SIZE allows bad blocks within the range to be avoided.
+config ENV_IS_IN_NMBM
+ bool "Environment in a NMBM upper MTD layer"
+ depends on !CHAIN_OF_TRUST
+ depends on NMBM_MTD
+ help
+ Define this if you have a NMBM upper MTD which you want to use for
+ the environment.
+
+ - CONFIG_ENV_OFFSET:
+ - CONFIG_ENV_SIZE:
+
+ These two #defines specify the offset and size of the environment
+ area within the first NAND device. CONFIG_ENV_OFFSET must be
+ aligned to an erase block boundary.
+
config ENV_IS_IN_NVRAM
bool "Environment in a non-volatile RAM"
depends on !CHAIN_OF_TRUST
@@ -579,7 +594,7 @@ config ENV_MTD_NAME
config ENV_OFFSET
hex "Environment offset"
depends on ENV_IS_IN_EEPROM || ENV_IS_IN_MMC || ENV_IS_IN_NAND || \
- ENV_IS_IN_SPI_FLASH || ENV_IS_IN_MTD
+ ENV_IS_IN_SPI_FLASH || ENV_IS_IN_NMBM || ENV_IS_IN_MTD
default 0x3f8000 if ARCH_ROCKCHIP && ENV_IS_IN_MMC
default 0x140000 if ARCH_ROCKCHIP && ENV_IS_IN_SPI_FLASH
default 0xF0000 if ARCH_SUNXI
--- a/env/Makefile
+++ b/env/Makefile
@@ -28,6 +28,7 @@ obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_FAT) +
obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_EXT4) += ext4.o
obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_MTD) += mtd.o
obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_NAND) += nand.o
+obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_NMBM) += nmbm.o
obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_SPI_FLASH) += sf.o
obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_FLASH) += flash.o
--- a/env/env.c
+++ b/env/env.c
@@ -75,6 +75,9 @@ static enum env_location env_locations[]
#ifdef CONFIG_ENV_IS_IN_NAND
ENVL_NAND,
#endif
+#ifdef CONFIG_ENV_IS_IN_NMBM
+ ENVL_NMBM,
+#endif
#ifdef CONFIG_ENV_IS_IN_NVRAM
ENVL_NVRAM,
#endif
--- /dev/null
+++ b/env/nmbm.c
@@ -0,0 +1,155 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 MediaTek Inc. All Rights Reserved.
+ *
+ * Author: Weijie Gao <weijie.gao@mediatek.com>
+ */
+
+#include <command.h>
+#include <env.h>
+#include <env_internal.h>
+#include <errno.h>
+#include <linux/kernel.h>
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <malloc.h>
+#include <memalign.h>
+#include <search.h>
+
+#include <nmbm/nmbm-mtd.h>
+
+#if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_NMBM_MTD)
+#define CMD_SAVEENV
+#endif
+
+#if defined(ENV_IS_EMBEDDED)
+env_t *env_ptr = &environment;
+#else /* ! ENV_IS_EMBEDDED */
+env_t *env_ptr;
+#endif /* ENV_IS_EMBEDDED */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int env_nmbm_init(void)
+{
+#if defined(ENV_IS_EMBEDDED)
+ int crc1_ok = 0, crc2_ok = 0;
+ env_t *tmp_env1;
+
+ tmp_env1 = env_ptr;
+ crc1_ok = crc32(0, tmp_env1->data, ENV_SIZE) == tmp_env1->crc;
+
+ if (!crc1_ok && !crc2_ok) {
+ gd->env_addr = 0;
+ gd->env_valid = ENV_INVALID;
+
+ return 0;
+ } else if (crc1_ok && !crc2_ok) {
+ gd->env_valid = ENV_VALID;
+ }
+
+ if (gd->env_valid == ENV_VALID)
+ env_ptr = tmp_env1;
+
+ gd->env_addr = (ulong)env_ptr->data;
+
+#else /* ENV_IS_EMBEDDED */
+ gd->env_addr = (ulong)&default_environment[0];
+ gd->env_valid = ENV_VALID;
+#endif /* ENV_IS_EMBEDDED */
+
+ return 0;
+}
+
+#ifdef CMD_SAVEENV
+static int env_nmbm_save(void)
+{
+ ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
+ struct mtd_info *mtd;
+ struct erase_info ei;
+ int ret = 0;
+
+ ret = env_export(env_new);
+ if (ret)
+ return ret;
+
+ mtd = nmbm_mtd_get_upper_by_index(0);
+ if (!mtd)
+ return 1;
+
+ printf("Erasing on NMBM...\n");
+ memset(&ei, 0, sizeof(ei));
+
+ ei.mtd = mtd;
+ ei.addr = CONFIG_ENV_OFFSET;
+ ei.len = CONFIG_ENV_SIZE;
+
+ if (mtd_erase(mtd, &ei))
+ return 1;
+
+ printf("Writing on NMBM... ");
+ ret = mtd_write(mtd, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, NULL,
+ (u_char *)env_new);
+ puts(ret ? "FAILED!\n" : "OK\n");
+
+ return !!ret;
+}
+#endif /* CMD_SAVEENV */
+
+static int readenv(size_t offset, u_char *buf)
+{
+ struct mtd_info *mtd;
+ struct mtd_oob_ops ops;
+ int ret;
+ size_t len = CONFIG_ENV_SIZE;
+
+ mtd = nmbm_mtd_get_upper_by_index(0);
+ if (!mtd)
+ return 1;
+
+ ops.mode = MTD_OPS_AUTO_OOB;
+ ops.ooblen = 0;
+ while(len > 0) {
+ ops.datbuf = buf;
+ ops.len = min(len, (size_t)mtd->writesize);
+ ops.oobbuf = NULL;
+
+ ret = mtd_read_oob(mtd, offset, &ops);
+ if (ret)
+ return 1;
+
+ buf += mtd->writesize;
+ len -= mtd->writesize;
+ offset += mtd->writesize;
+ }
+
+ return 0;
+}
+
+static int env_nmbm_load(void)
+{
+#if !defined(ENV_IS_EMBEDDED)
+ ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
+ int ret;
+
+ ret = readenv(CONFIG_ENV_OFFSET, (u_char *)buf);
+ if (ret) {
+ env_set_default("readenv() failed", 0);
+ return -EIO;
+ }
+
+ return env_import(buf, 1, H_EXTERNAL);
+#endif /* ! ENV_IS_EMBEDDED */
+
+ return 0;
+}
+
+U_BOOT_ENV_LOCATION(nmbm) = {
+ .location = ENVL_NMBM,
+ ENV_NAME("NMBM")
+ .load = env_nmbm_load,
+#if defined(CMD_SAVEENV)
+ .save = env_save_ptr(env_nmbm_save),
+#endif
+ .init = env_nmbm_init,
+};
--- a/include/env_internal.h
+++ b/include/env_internal.h
@@ -132,6 +132,7 @@ enum env_location {
ENVL_MMC,
ENVL_MTD,
ENVL_NAND,
+ ENVL_NMBM,
ENVL_NVRAM,
ENVL_ONENAND,
ENVL_REMOTE,
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -43,6 +43,7 @@ ENVCRC-$(CONFIG_ENV_IS_IN_FLASH) = y
ENVCRC-$(CONFIG_ENV_IS_IN_ONENAND) = y
ENVCRC-$(CONFIG_ENV_IS_IN_MTD) = y
ENVCRC-$(CONFIG_ENV_IS_IN_NAND) = y
+ENVCRC-$(CONFIG_ENV_IS_IN_NMBM) = y
ENVCRC-$(CONFIG_ENV_IS_IN_NVRAM) = y
ENVCRC-$(CONFIG_ENV_IS_IN_SPI_FLASH) = y
CONFIG_BUILD_ENVCRC ?= $(ENVCRC-y)
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