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Diffstat (limited to 'qemu/roms/u-boot/common/env_flash.c')
-rw-r--r--qemu/roms/u-boot/common/env_flash.c338
1 files changed, 0 insertions, 338 deletions
diff --git a/qemu/roms/u-boot/common/env_flash.c b/qemu/roms/u-boot/common/env_flash.c
deleted file mode 100644
index 004e8849a..000000000
--- a/qemu/roms/u-boot/common/env_flash.c
+++ /dev/null
@@ -1,338 +0,0 @@
-/*
- * (C) Copyright 2000-2010
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Andreas Heppel <aheppel@sysgo.de>
-
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/* #define DEBUG */
-
-#include <common.h>
-#include <command.h>
-#include <environment.h>
-#include <linux/stddef.h>
-#include <malloc.h>
-#include <search.h>
-#include <errno.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_CMD_FLASH)
-#define CMD_SAVEENV
-#elif defined(CONFIG_ENV_ADDR_REDUND)
-#error CONFIG_ENV_ADDR_REDUND must have CONFIG_CMD_SAVEENV & CONFIG_CMD_FLASH
-#endif
-
-#if defined(CONFIG_ENV_SIZE_REDUND) && \
- (CONFIG_ENV_SIZE_REDUND < CONFIG_ENV_SIZE)
-#error CONFIG_ENV_SIZE_REDUND should not be less then CONFIG_ENV_SIZE
-#endif
-
-char *env_name_spec = "Flash";
-
-#ifdef ENV_IS_EMBEDDED
-env_t *env_ptr = &environment;
-
-static env_t *flash_addr = (env_t *)CONFIG_ENV_ADDR;
-
-#else /* ! ENV_IS_EMBEDDED */
-
-env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
-static env_t *flash_addr = (env_t *)CONFIG_ENV_ADDR;
-#endif /* ENV_IS_EMBEDDED */
-
-#if defined(CMD_SAVEENV) || defined(CONFIG_ENV_ADDR_REDUND)
-/* CONFIG_ENV_ADDR is supposed to be on sector boundary */
-static ulong end_addr = CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1;
-#endif
-
-#ifdef CONFIG_ENV_ADDR_REDUND
-static env_t *flash_addr_new = (env_t *)CONFIG_ENV_ADDR_REDUND;
-
-/* CONFIG_ENV_ADDR_REDUND is supposed to be on sector boundary */
-static ulong end_addr_new = CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1;
-#endif /* CONFIG_ENV_ADDR_REDUND */
-
-
-#ifdef CONFIG_ENV_ADDR_REDUND
-int env_init(void)
-{
- int crc1_ok = 0, crc2_ok = 0;
-
- uchar flag1 = flash_addr->flags;
- uchar flag2 = flash_addr_new->flags;
-
- ulong addr_default = (ulong)&default_environment[0];
- ulong addr1 = (ulong)&(flash_addr->data);
- ulong addr2 = (ulong)&(flash_addr_new->data);
-
- crc1_ok = crc32(0, flash_addr->data, ENV_SIZE) == flash_addr->crc;
- crc2_ok =
- crc32(0, flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc;
-
- if (crc1_ok && !crc2_ok) {
- gd->env_addr = addr1;
- gd->env_valid = 1;
- } else if (!crc1_ok && crc2_ok) {
- gd->env_addr = addr2;
- gd->env_valid = 1;
- } else if (!crc1_ok && !crc2_ok) {
- gd->env_addr = addr_default;
- gd->env_valid = 0;
- } else if (flag1 == ACTIVE_FLAG && flag2 == OBSOLETE_FLAG) {
- gd->env_addr = addr1;
- gd->env_valid = 1;
- } else if (flag1 == OBSOLETE_FLAG && flag2 == ACTIVE_FLAG) {
- gd->env_addr = addr2;
- gd->env_valid = 1;
- } else if (flag1 == flag2) {
- gd->env_addr = addr1;
- gd->env_valid = 2;
- } else if (flag1 == 0xFF) {
- gd->env_addr = addr1;
- gd->env_valid = 2;
- } else if (flag2 == 0xFF) {
- gd->env_addr = addr2;
- gd->env_valid = 2;
- }
-
- return 0;
-}
-
-#ifdef CMD_SAVEENV
-int saveenv(void)
-{
- env_t env_new;
- char *saved_data = NULL;
- char flag = OBSOLETE_FLAG, new_flag = ACTIVE_FLAG;
- int rc = 1;
-#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
- ulong up_data = 0;
-#endif
-
- debug("Protect off %08lX ... %08lX\n", (ulong)flash_addr, end_addr);
-
- if (flash_sect_protect(0, (ulong)flash_addr, end_addr))
- goto done;
-
- debug("Protect off %08lX ... %08lX\n",
- (ulong)flash_addr_new, end_addr_new);
-
- if (flash_sect_protect(0, (ulong)flash_addr_new, end_addr_new))
- goto done;
-
- rc = env_export(&env_new);
- if (rc)
- return rc;
- env_new.flags = new_flag;
-
-#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
- up_data = end_addr_new + 1 - ((long)flash_addr_new + CONFIG_ENV_SIZE);
- debug("Data to save 0x%lX\n", up_data);
- if (up_data) {
- saved_data = malloc(up_data);
- if (saved_data == NULL) {
- printf("Unable to save the rest of sector (%ld)\n",
- up_data);
- goto done;
- }
- memcpy(saved_data,
- (void *)((long)flash_addr_new + CONFIG_ENV_SIZE),
- up_data);
- debug("Data (start 0x%lX, len 0x%lX) saved at 0x%p\n",
- (long)flash_addr_new + CONFIG_ENV_SIZE,
- up_data, saved_data);
- }
-#endif
- puts("Erasing Flash...");
- debug(" %08lX ... %08lX ...", (ulong)flash_addr_new, end_addr_new);
-
- if (flash_sect_erase((ulong)flash_addr_new, end_addr_new))
- goto done;
-
- puts("Writing to Flash... ");
- debug(" %08lX ... %08lX ...",
- (ulong)&(flash_addr_new->data),
- sizeof(env_ptr->data) + (ulong)&(flash_addr_new->data));
- rc = flash_write((char *)&env_new, (ulong)flash_addr_new,
- sizeof(env_new));
- if (rc)
- goto perror;
-
- rc = flash_write(&flag, (ulong)&(flash_addr->flags),
- sizeof(flash_addr->flags));
- if (rc)
- goto perror;
-
-#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
- if (up_data) { /* restore the rest of sector */
- debug("Restoring the rest of data to 0x%lX len 0x%lX\n",
- (long)flash_addr_new + CONFIG_ENV_SIZE, up_data);
- if (flash_write(saved_data,
- (long)flash_addr_new + CONFIG_ENV_SIZE,
- up_data))
- goto perror;
- }
-#endif
- puts("done\n");
-
- {
- env_t *etmp = flash_addr;
- ulong ltmp = end_addr;
-
- flash_addr = flash_addr_new;
- flash_addr_new = etmp;
-
- end_addr = end_addr_new;
- end_addr_new = ltmp;
- }
-
- rc = 0;
- goto done;
-perror:
- flash_perror(rc);
-done:
- if (saved_data)
- free(saved_data);
- /* try to re-protect */
- flash_sect_protect(1, (ulong)flash_addr, end_addr);
- flash_sect_protect(1, (ulong)flash_addr_new, end_addr_new);
-
- return rc;
-}
-#endif /* CMD_SAVEENV */
-
-#else /* ! CONFIG_ENV_ADDR_REDUND */
-
-int env_init(void)
-{
- if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
- gd->env_addr = (ulong)&(env_ptr->data);
- gd->env_valid = 1;
- return 0;
- }
-
- gd->env_addr = (ulong)&default_environment[0];
- gd->env_valid = 0;
- return 0;
-}
-
-#ifdef CMD_SAVEENV
-int saveenv(void)
-{
- env_t env_new;
- int rc = 1;
- char *saved_data = NULL;
-#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
- ulong up_data = 0;
-
- up_data = end_addr + 1 - ((long)flash_addr + CONFIG_ENV_SIZE);
- debug("Data to save 0x%lx\n", up_data);
- if (up_data) {
- saved_data = malloc(up_data);
- if (saved_data == NULL) {
- printf("Unable to save the rest of sector (%ld)\n",
- up_data);
- goto done;
- }
- memcpy(saved_data,
- (void *)((long)flash_addr + CONFIG_ENV_SIZE), up_data);
- debug("Data (start 0x%lx, len 0x%lx) saved at 0x%lx\n",
- (ulong)flash_addr + CONFIG_ENV_SIZE,
- up_data,
- (ulong)saved_data);
- }
-#endif /* CONFIG_ENV_SECT_SIZE */
-
- debug("Protect off %08lX ... %08lX\n", (ulong)flash_addr, end_addr);
-
- if (flash_sect_protect(0, (long)flash_addr, end_addr))
- goto done;
-
- rc = env_export(&env_new);
- if (rc)
- goto done;
-
- puts("Erasing Flash...");
- if (flash_sect_erase((long)flash_addr, end_addr))
- goto done;
-
- puts("Writing to Flash... ");
- rc = flash_write((char *)&env_new, (long)flash_addr, CONFIG_ENV_SIZE);
- if (rc != 0)
- goto perror;
-
-#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
- if (up_data) { /* restore the rest of sector */
- debug("Restoring the rest of data to 0x%lx len 0x%lx\n",
- (ulong)flash_addr + CONFIG_ENV_SIZE, up_data);
- if (flash_write(saved_data,
- (long)flash_addr + CONFIG_ENV_SIZE,
- up_data))
- goto perror;
- }
-#endif
- puts("done\n");
- rc = 0;
- goto done;
-perror:
- flash_perror(rc);
-done:
- if (saved_data)
- free(saved_data);
- /* try to re-protect */
- flash_sect_protect(1, (long)flash_addr, end_addr);
- return rc;
-}
-#endif /* CMD_SAVEENV */
-
-#endif /* CONFIG_ENV_ADDR_REDUND */
-
-void env_relocate_spec(void)
-{
-#ifdef CONFIG_ENV_ADDR_REDUND
- if (gd->env_addr != (ulong)&(flash_addr->data)) {
- env_t *etmp = flash_addr;
- ulong ltmp = end_addr;
-
- flash_addr = flash_addr_new;
- flash_addr_new = etmp;
-
- end_addr = end_addr_new;
- end_addr_new = ltmp;
- }
-
- if (flash_addr_new->flags != OBSOLETE_FLAG &&
- crc32(0, flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc) {
- char flag = OBSOLETE_FLAG;
-
- gd->env_valid = 2;
- flash_sect_protect(0, (ulong)flash_addr_new, end_addr_new);
- flash_write(&flag,
- (ulong)&(flash_addr_new->flags),
- sizeof(flash_addr_new->flags));
- flash_sect_protect(1, (ulong)flash_addr_new, end_addr_new);
- }
-
- if (flash_addr->flags != ACTIVE_FLAG &&
- (flash_addr->flags & ACTIVE_FLAG) == ACTIVE_FLAG) {
- char flag = ACTIVE_FLAG;
-
- gd->env_valid = 2;
- flash_sect_protect(0, (ulong)flash_addr, end_addr);
- flash_write(&flag,
- (ulong)&(flash_addr->flags),
- sizeof(flash_addr->flags));
- flash_sect_protect(1, (ulong)flash_addr, end_addr);
- }
-
- if (gd->env_valid == 2)
- puts("*** Warning - some problems detected "
- "reading environment; recovered successfully\n\n");
-#endif /* CONFIG_ENV_ADDR_REDUND */
-
- env_import((char *)flash_addr, 1);
-}