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-rw-r--r--common/env_nand.c395
1 files changed, 0 insertions, 395 deletions
diff --git a/common/env_nand.c b/common/env_nand.c
deleted file mode 100644
index 760f6859e35..00000000000
--- a/common/env_nand.c
+++ /dev/null
@@ -1,395 +0,0 @@
-/*
- * (C) Copyright 2000-2010
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2008
- * Stuart Wood, Lab X Technologies <stuart.wood@labxtechnologies.com>
- *
- * (C) Copyright 2004
- * Jian Zhang, Texas Instruments, jzhang@ti.com.
- *
- * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Andreas Heppel <aheppel@sysgo.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-#include <environment.h>
-#include <linux/stddef.h>
-#include <malloc.h>
-#include <memalign.h>
-#include <nand.h>
-#include <search.h>
-#include <errno.h>
-
-#if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_CMD_NAND)
-#define CMD_SAVEENV
-#elif defined(CONFIG_ENV_OFFSET_REDUND)
-#error CONFIG_ENV_OFFSET_REDUND must have CONFIG_CMD_SAVEENV & CONFIG_CMD_NAND
-#endif
-
-#if defined(CONFIG_ENV_SIZE_REDUND) && \
- (CONFIG_ENV_SIZE_REDUND != CONFIG_ENV_SIZE)
-#error CONFIG_ENV_SIZE_REDUND should be the same as CONFIG_ENV_SIZE
-#endif
-
-#ifndef CONFIG_ENV_RANGE
-#define CONFIG_ENV_RANGE CONFIG_ENV_SIZE
-#endif
-
-char *env_name_spec = "NAND";
-
-#if defined(ENV_IS_EMBEDDED)
-env_t *env_ptr = &environment;
-#elif defined(CONFIG_NAND_ENV_DST)
-env_t *env_ptr = (env_t *)CONFIG_NAND_ENV_DST;
-#else /* ! ENV_IS_EMBEDDED */
-env_t *env_ptr;
-#endif /* ENV_IS_EMBEDDED */
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/*
- * This is called before nand_init() so we can't read NAND to
- * validate env data.
- *
- * Mark it OK for now. env_relocate() in env_common.c will call our
- * relocate function which does the real validation.
- *
- * When using a NAND boot image (like sequoia_nand), the environment
- * can be embedded or attached to the U-Boot image in NAND flash.
- * This way the SPL loads not only the U-Boot image from NAND but
- * also the environment.
- */
-int env_init(void)
-{
-#if defined(ENV_IS_EMBEDDED) || defined(CONFIG_NAND_ENV_DST)
- int crc1_ok = 0, crc2_ok = 0;
- env_t *tmp_env1;
-
-#ifdef CONFIG_ENV_OFFSET_REDUND
- env_t *tmp_env2;
-
- tmp_env2 = (env_t *)((ulong)env_ptr + CONFIG_ENV_SIZE);
- crc2_ok = crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc;
-#endif
- 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 = 0;
-
- return 0;
- } else if (crc1_ok && !crc2_ok) {
- gd->env_valid = 1;
- }
-#ifdef CONFIG_ENV_OFFSET_REDUND
- else if (!crc1_ok && crc2_ok) {
- gd->env_valid = 2;
- } else {
- /* both ok - check serial */
- if (tmp_env1->flags == 255 && tmp_env2->flags == 0)
- gd->env_valid = 2;
- else if (tmp_env2->flags == 255 && tmp_env1->flags == 0)
- gd->env_valid = 1;
- else if (tmp_env1->flags > tmp_env2->flags)
- gd->env_valid = 1;
- else if (tmp_env2->flags > tmp_env1->flags)
- gd->env_valid = 2;
- else /* flags are equal - almost impossible */
- gd->env_valid = 1;
- }
-
- if (gd->env_valid == 2)
- env_ptr = tmp_env2;
- else
-#endif
- if (gd->env_valid == 1)
- env_ptr = tmp_env1;
-
- gd->env_addr = (ulong)env_ptr->data;
-
-#else /* ENV_IS_EMBEDDED || CONFIG_NAND_ENV_DST */
- gd->env_addr = (ulong)&default_environment[0];
- gd->env_valid = 1;
-#endif /* ENV_IS_EMBEDDED || CONFIG_NAND_ENV_DST */
-
- return 0;
-}
-
-#ifdef CMD_SAVEENV
-/*
- * The legacy NAND code saved the environment in the first NAND device i.e.,
- * nand_dev_desc + 0. This is also the behaviour using the new NAND code.
- */
-static int writeenv(size_t offset, u_char *buf)
-{
- size_t end = offset + CONFIG_ENV_RANGE;
- size_t amount_saved = 0;
- size_t blocksize, len;
- struct mtd_info *mtd;
- u_char *char_ptr;
-
- mtd = get_nand_dev_by_index(0);
- if (!mtd)
- return 1;
-
- blocksize = mtd->erasesize;
- len = min(blocksize, (size_t)CONFIG_ENV_SIZE);
-
- while (amount_saved < CONFIG_ENV_SIZE && offset < end) {
- if (nand_block_isbad(mtd, offset)) {
- offset += blocksize;
- } else {
- char_ptr = &buf[amount_saved];
- if (nand_write(mtd, offset, &len, char_ptr))
- return 1;
-
- offset += blocksize;
- amount_saved += len;
- }
- }
- if (amount_saved != CONFIG_ENV_SIZE)
- return 1;
-
- return 0;
-}
-
-struct env_location {
- const char *name;
- const nand_erase_options_t erase_opts;
-};
-
-static int erase_and_write_env(const struct env_location *location,
- u_char *env_new)
-{
- struct mtd_info *mtd;
- int ret = 0;
-
- mtd = get_nand_dev_by_index(0);
- if (!mtd)
- return 1;
-
- printf("Erasing %s...\n", location->name);
- if (nand_erase_opts(mtd, &location->erase_opts))
- return 1;
-
- printf("Writing to %s... ", location->name);
- ret = writeenv(location->erase_opts.offset, env_new);
- puts(ret ? "FAILED!\n" : "OK\n");
-
- return ret;
-}
-
-int saveenv(void)
-{
- int ret = 0;
- ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
- int env_idx = 0;
- static const struct env_location location[] = {
- {
- .name = "NAND",
- .erase_opts = {
- .length = CONFIG_ENV_RANGE,
- .offset = CONFIG_ENV_OFFSET,
- },
- },
-#ifdef CONFIG_ENV_OFFSET_REDUND
- {
- .name = "redundant NAND",
- .erase_opts = {
- .length = CONFIG_ENV_RANGE,
- .offset = CONFIG_ENV_OFFSET_REDUND,
- },
- },
-#endif
- };
-
-
- if (CONFIG_ENV_RANGE < CONFIG_ENV_SIZE)
- return 1;
-
- ret = env_export(env_new);
- if (ret)
- return ret;
-
-#ifdef CONFIG_ENV_OFFSET_REDUND
- env_idx = (gd->env_valid == 1);
-#endif
-
- ret = erase_and_write_env(&location[env_idx], (u_char *)env_new);
-#ifdef CONFIG_ENV_OFFSET_REDUND
- if (!ret) {
- /* preset other copy for next write */
- gd->env_valid = gd->env_valid == 2 ? 1 : 2;
- return ret;
- }
-
- env_idx = (env_idx + 1) & 1;
- ret = erase_and_write_env(&location[env_idx], (u_char *)env_new);
- if (!ret)
- printf("Warning: primary env write failed,"
- " redundancy is lost!\n");
-#endif
-
- return ret;
-}
-#endif /* CMD_SAVEENV */
-
-#if defined(CONFIG_SPL_BUILD)
-static int readenv(size_t offset, u_char *buf)
-{
- return nand_spl_load_image(offset, CONFIG_ENV_SIZE, buf);
-}
-#else
-static int readenv(size_t offset, u_char *buf)
-{
- size_t end = offset + CONFIG_ENV_RANGE;
- size_t amount_loaded = 0;
- size_t blocksize, len;
- struct mtd_info *mtd;
- u_char *char_ptr;
-
- mtd = get_nand_dev_by_index(0);
- if (!mtd)
- return 1;
-
- blocksize = mtd->erasesize;
- len = min(blocksize, (size_t)CONFIG_ENV_SIZE);
-
- while (amount_loaded < CONFIG_ENV_SIZE && offset < end) {
- if (nand_block_isbad(mtd, offset)) {
- offset += blocksize;
- } else {
- char_ptr = &buf[amount_loaded];
- if (nand_read_skip_bad(mtd, offset,
- &len, NULL,
- mtd->size, char_ptr))
- return 1;
-
- offset += blocksize;
- amount_loaded += len;
- }
- }
-
- if (amount_loaded != CONFIG_ENV_SIZE)
- return 1;
-
- return 0;
-}
-#endif /* #if defined(CONFIG_SPL_BUILD) */
-
-#ifdef CONFIG_ENV_OFFSET_OOB
-int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result)
-{
- struct mtd_oob_ops ops;
- uint32_t oob_buf[ENV_OFFSET_SIZE / sizeof(uint32_t)];
- int ret;
-
- ops.datbuf = NULL;
- ops.mode = MTD_OOB_AUTO;
- ops.ooboffs = 0;
- ops.ooblen = ENV_OFFSET_SIZE;
- ops.oobbuf = (void *)oob_buf;
-
- ret = mtd->read_oob(mtd, ENV_OFFSET_SIZE, &ops);
- if (ret) {
- printf("error reading OOB block 0\n");
- return ret;
- }
-
- if (oob_buf[0] == ENV_OOB_MARKER) {
- *result = oob_buf[1] * mtd->erasesize;
- } else if (oob_buf[0] == ENV_OOB_MARKER_OLD) {
- *result = oob_buf[1];
- } else {
- printf("No dynamic environment marker in OOB block 0\n");
- return -ENOENT;
- }
-
- return 0;
-}
-#endif
-
-#ifdef CONFIG_ENV_OFFSET_REDUND
-void env_relocate_spec(void)
-{
-#if !defined(ENV_IS_EMBEDDED)
- int read1_fail = 0, read2_fail = 0;
- env_t *tmp_env1, *tmp_env2;
-
- tmp_env1 = (env_t *)malloc(CONFIG_ENV_SIZE);
- tmp_env2 = (env_t *)malloc(CONFIG_ENV_SIZE);
- if (tmp_env1 == NULL || tmp_env2 == NULL) {
- puts("Can't allocate buffers for environment\n");
- set_default_env("!malloc() failed");
- goto done;
- }
-
- read1_fail = readenv(CONFIG_ENV_OFFSET, (u_char *) tmp_env1);
- read2_fail = readenv(CONFIG_ENV_OFFSET_REDUND, (u_char *) tmp_env2);
-
- if (read1_fail && read2_fail)
- puts("*** Error - No Valid Environment Area found\n");
- else if (read1_fail || read2_fail)
- puts("*** Warning - some problems detected "
- "reading environment; recovered successfully\n");
-
- if (read1_fail && read2_fail) {
- set_default_env("!bad env area");
- goto done;
- } else if (!read1_fail && read2_fail) {
- gd->env_valid = 1;
- env_import((char *)tmp_env1, 1);
- } else if (read1_fail && !read2_fail) {
- gd->env_valid = 2;
- env_import((char *)tmp_env2, 1);
- } else {
- env_import_redund((char *)tmp_env1, (char *)tmp_env2);
- }
-
-done:
- free(tmp_env1);
- free(tmp_env2);
-
-#endif /* ! ENV_IS_EMBEDDED */
-}
-#else /* ! CONFIG_ENV_OFFSET_REDUND */
-/*
- * The legacy NAND code saved the environment in the first NAND
- * device i.e., nand_dev_desc + 0. This is also the behaviour using
- * the new NAND code.
- */
-void env_relocate_spec(void)
-{
-#if !defined(ENV_IS_EMBEDDED)
- int ret;
- ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
-
-#if defined(CONFIG_ENV_OFFSET_OOB)
- struct mtd_info *mtd = get_nand_dev_by_index(0);
- /*
- * If unable to read environment offset from NAND OOB then fall through
- * to the normal environment reading code below
- */
- if (mtd && !get_nand_env_oob(mtd, &nand_env_oob_offset)) {
- printf("Found Environment offset in OOB..\n");
- } else {
- set_default_env("!no env offset in OOB");
- return;
- }
-#endif
-
- ret = readenv(CONFIG_ENV_OFFSET, (u_char *)buf);
- if (ret) {
- set_default_env("!readenv() failed");
- return;
- }
-
- env_import(buf, 1);
-#endif /* ! ENV_IS_EMBEDDED */
-}
-#endif /* CONFIG_ENV_OFFSET_REDUND */
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