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https://github.com/openwrt/openwrt.git
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f8c22c9bff
Update to latest U-Boot release. Patches refreshed and fixed when needed. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
261 lines
6.4 KiB
Diff
261 lines
6.4 KiB
Diff
From 240d98e6ad0aed3c11236aa40a60bbd6fe01fae5 Mon Sep 17 00:00:00 2001
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From: Weijie Gao <weijie.gao@mediatek.com>
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Date: Mon, 25 Jul 2022 10:50:46 +0800
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Subject: [PATCH 45/71] env: add support for NMBM upper MTD layer
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Add an env driver for NMBM upper MTD layer
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Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
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---
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cmd/nvedit.c | 3 +-
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env/Kconfig | 19 ++++-
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env/Makefile | 1 +
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env/env.c | 3 +
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env/nmbm.c | 155 +++++++++++++++++++++++++++++++++++++++++
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include/env_internal.h | 1 +
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tools/Makefile | 1 +
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7 files changed, 180 insertions(+), 3 deletions(-)
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create mode 100644 env/nmbm.c
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--- a/env/Kconfig
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+++ b/env/Kconfig
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@@ -59,6 +59,7 @@ config ENV_IS_DEFAULT
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def_bool y if !ENV_IS_IN_EEPROM && !ENV_IS_IN_EXT4 && \
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!ENV_IS_IN_FAT && !ENV_IS_IN_FLASH && \
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!ENV_IS_IN_MMC && !ENV_IS_IN_NAND && \
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+ !ENV_IS_IN_NMBM && \
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!ENV_IS_IN_NVRAM && !ENV_IS_IN_ONENAND && \
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!ENV_IS_IN_REMOTE && !ENV_IS_IN_SPI_FLASH && \
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!ENV_IS_IN_UBI && !ENV_IS_IN_MTD
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@@ -315,6 +316,21 @@ config ENV_RANGE
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Specifying a range with more erase blocks than are needed to hold
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CONFIG_ENV_SIZE allows bad blocks within the range to be avoided.
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+config ENV_IS_IN_NMBM
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+ bool "Environment in a NMBM upper MTD layer"
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+ depends on !CHAIN_OF_TRUST
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+ depends on NMBM_MTD
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+ help
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+ Define this if you have a NMBM upper MTD which you want to use for
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+ the environment.
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+
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+ - CONFIG_ENV_OFFSET:
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+ - CONFIG_ENV_SIZE:
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+
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+ These two #defines specify the offset and size of the environment
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+ area within the first NAND device. CONFIG_ENV_OFFSET must be
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+ aligned to an erase block boundary.
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+
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config ENV_IS_IN_NVRAM
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bool "Environment in a non-volatile RAM"
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depends on !CHAIN_OF_TRUST
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@@ -591,7 +607,7 @@ config ENV_MTD_NAME
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config ENV_OFFSET
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hex "Environment offset"
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depends on ENV_IS_IN_EEPROM || ENV_IS_IN_MMC || ENV_IS_IN_NAND || \
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- ENV_IS_IN_SPI_FLASH || ENV_IS_IN_MTD
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+ ENV_IS_IN_SPI_FLASH || ENV_IS_IN_NMBM || ENV_IS_IN_MTD
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default 0x3f8000 if ARCH_ROCKCHIP && ENV_IS_IN_MMC
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default 0x140000 if ARCH_ROCKCHIP && ENV_IS_IN_SPI_FLASH
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default 0xF0000 if ARCH_SUNXI
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--- a/env/Makefile
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+++ b/env/Makefile
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@@ -26,6 +26,7 @@ obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_FAT) +
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obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_EXT4) += ext4.o
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obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_MTD) += mtd.o
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obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_NAND) += nand.o
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+obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_NMBM) += nmbm.o
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obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_SPI_FLASH) += sf.o
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obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_FLASH) += flash.o
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--- a/env/env.c
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+++ b/env/env.c
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@@ -52,6 +52,9 @@ static enum env_location env_locations[]
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#ifdef CONFIG_ENV_IS_IN_NAND
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ENVL_NAND,
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#endif
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+#ifdef CONFIG_ENV_IS_IN_NMBM
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+ ENVL_NMBM,
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+#endif
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#ifdef CONFIG_ENV_IS_IN_NVRAM
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ENVL_NVRAM,
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#endif
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--- /dev/null
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+++ b/env/nmbm.c
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@@ -0,0 +1,155 @@
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+/* SPDX-License-Identifier: GPL-2.0 */
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+/*
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+ * Copyright (C) 2020 MediaTek Inc. All Rights Reserved.
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+ *
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+ * Author: Weijie Gao <weijie.gao@mediatek.com>
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+ */
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+
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+#include <command.h>
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+#include <env.h>
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+#include <env_internal.h>
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+#include <errno.h>
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+#include <linux/kernel.h>
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+#include <linux/stddef.h>
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+#include <linux/types.h>
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+#include <malloc.h>
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+#include <memalign.h>
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+#include <search.h>
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+
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+#include <nmbm/nmbm-mtd.h>
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+
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+#if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_NMBM_MTD)
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+#define CMD_SAVEENV
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+#endif
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+
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+#if defined(ENV_IS_EMBEDDED)
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+env_t *env_ptr = &environment;
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+#else /* ! ENV_IS_EMBEDDED */
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+env_t *env_ptr;
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+#endif /* ENV_IS_EMBEDDED */
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+
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+DECLARE_GLOBAL_DATA_PTR;
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+
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+static int env_nmbm_init(void)
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+{
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+#if defined(ENV_IS_EMBEDDED)
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+ int crc1_ok = 0, crc2_ok = 0;
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+ env_t *tmp_env1;
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+
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+ tmp_env1 = env_ptr;
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+ crc1_ok = crc32(0, tmp_env1->data, ENV_SIZE) == tmp_env1->crc;
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+
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+ if (!crc1_ok && !crc2_ok) {
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+ gd->env_addr = 0;
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+ gd->env_valid = ENV_INVALID;
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+
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+ return 0;
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+ } else if (crc1_ok && !crc2_ok) {
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+ gd->env_valid = ENV_VALID;
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+ }
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+
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+ if (gd->env_valid == ENV_VALID)
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+ env_ptr = tmp_env1;
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+
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+ gd->env_addr = (ulong)env_ptr->data;
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+
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+#else /* ENV_IS_EMBEDDED */
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+ gd->env_addr = (ulong)&default_environment[0];
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+ gd->env_valid = ENV_VALID;
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+#endif /* ENV_IS_EMBEDDED */
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+
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+ return 0;
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+}
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+
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+#ifdef CMD_SAVEENV
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+static int env_nmbm_save(void)
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+{
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+ ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
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+ struct mtd_info *mtd;
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+ struct erase_info ei;
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+ int ret = 0;
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+
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+ ret = env_export(env_new);
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+ if (ret)
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+ return ret;
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+
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+ mtd = nmbm_mtd_get_upper_by_index(0);
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+ if (!mtd)
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+ return 1;
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+
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+ printf("Erasing on NMBM...\n");
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+ memset(&ei, 0, sizeof(ei));
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+
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+ ei.mtd = mtd;
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+ ei.addr = CONFIG_ENV_OFFSET;
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+ ei.len = CONFIG_ENV_SIZE;
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+
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+ if (mtd_erase(mtd, &ei))
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+ return 1;
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+
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+ printf("Writing on NMBM... ");
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+ ret = mtd_write(mtd, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, NULL,
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+ (u_char *)env_new);
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+ puts(ret ? "FAILED!\n" : "OK\n");
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+
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+ return !!ret;
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+}
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+#endif /* CMD_SAVEENV */
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+
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+static int readenv(size_t offset, u_char *buf)
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+{
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+ struct mtd_info *mtd;
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+ struct mtd_oob_ops ops;
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+ int ret;
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+ size_t len = CONFIG_ENV_SIZE;
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+
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+ mtd = nmbm_mtd_get_upper_by_index(0);
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+ if (!mtd)
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+ return 1;
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+
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+ ops.mode = MTD_OPS_AUTO_OOB;
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+ ops.ooblen = 0;
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+ while(len > 0) {
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+ ops.datbuf = buf;
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+ ops.len = min(len, (size_t)mtd->writesize);
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+ ops.oobbuf = NULL;
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+
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+ ret = mtd_read_oob(mtd, offset, &ops);
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+ if (ret)
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+ return 1;
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+
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+ buf += mtd->writesize;
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+ len -= mtd->writesize;
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+ offset += mtd->writesize;
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+ }
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+
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+ return 0;
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+}
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+
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+static int env_nmbm_load(void)
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+{
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+#if !defined(ENV_IS_EMBEDDED)
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+ ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
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+ int ret;
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+
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+ ret = readenv(CONFIG_ENV_OFFSET, (u_char *)buf);
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+ if (ret) {
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+ env_set_default("readenv() failed", 0);
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+ return -EIO;
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+ }
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+
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+ return env_import(buf, 1, H_EXTERNAL);
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+#endif /* ! ENV_IS_EMBEDDED */
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+
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+ return 0;
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+}
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+
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+U_BOOT_ENV_LOCATION(nmbm) = {
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+ .location = ENVL_NMBM,
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+ ENV_NAME("NMBM")
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+ .load = env_nmbm_load,
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+#if defined(CMD_SAVEENV)
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+ .save = env_save_ptr(env_nmbm_save),
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+#endif
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+ .init = env_nmbm_init,
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+};
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--- a/include/env_internal.h
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+++ b/include/env_internal.h
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@@ -109,6 +109,7 @@ enum env_location {
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ENVL_MMC,
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ENVL_MTD,
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ENVL_NAND,
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+ ENVL_NMBM,
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ENVL_NVRAM,
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ENVL_ONENAND,
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ENVL_REMOTE,
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--- a/tools/Makefile
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+++ b/tools/Makefile
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@@ -39,6 +39,7 @@ ENVCRC-$(CONFIG_ENV_IS_IN_FLASH) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_ONENAND) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_MTD) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_NAND) = y
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+ENVCRC-$(CONFIG_ENV_IS_IN_NMBM) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_NVRAM) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_SPI_FLASH) = y
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BUILD_ENVCRC ?= $(ENVCRC-y)
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