470 lines
10 KiB
C
Executable File
470 lines
10 KiB
C
Executable File
/*
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* (C) Copyright 2000-2010
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Andreas Heppel <aheppel@sysgo.de>
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*
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* (C) Copyright 2008 Atmel Corporation
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <environment.h>
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#include <malloc.h>
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#include <spi.h>
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#include <spi_flash.h>
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#include <search.h>
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#include <errno.h>
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#ifdef CONFIG_MSTAR_ENV_OFFSET
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#include <asm/arch/mach/platform.h>
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#include <image.h>
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#endif
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#ifndef CONFIG_ENV_SPI_BUS
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# define CONFIG_ENV_SPI_BUS 0
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#endif
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#ifndef CONFIG_ENV_SPI_CS
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# define CONFIG_ENV_SPI_CS 0
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#endif
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#ifndef CONFIG_ENV_SPI_MAX_HZ
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# define CONFIG_ENV_SPI_MAX_HZ 1000000
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#endif
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#ifndef CONFIG_ENV_SPI_MODE
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# define CONFIG_ENV_SPI_MODE SPI_MODE_3
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#endif
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#ifdef CONFIG_MS_SAVE_ENV_IN_ISP_FLASH
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int ms_nor_env_offset = 0;
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#endif
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#ifdef CONFIG_ENV_OFFSET_REDUND
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static ulong env_offset;
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static ulong env_new_offset;
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#define ACTIVE_FLAG 1
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#define OBSOLETE_FLAG 0
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#endif /* CONFIG_ENV_OFFSET_REDUND */
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DECLARE_GLOBAL_DATA_PTR;
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char *env_name_spec = "SPI Flash";
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static struct spi_flash *env_flash;
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#ifdef CONFIG_MS_PARTITION
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#include "drivers/mstar/partition/part_mxp.h"
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extern int mxp_init_nor_flash(void);
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int mxp_get_env(int* offset, int* size)
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{
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char strENVName[] = "UBOOT_ENV";
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int idx;
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*offset = CONFIG_ENV_OFFSET;
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*size = CONFIG_ENV_SIZE;
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int ret=0;
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if((ret=mxp_init_nor_flash())<0)
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{
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return -1;
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}
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mxp_load_table();
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idx=mxp_get_record_index(strENVName);
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if(idx>=0)
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{
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mxp_record rec;
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if(0==mxp_get_record_by_index(idx,&rec))
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{
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*offset = rec.start;
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*size = rec.size;
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}
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else
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{
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printf("failed to get MXP record with name: %s\n", strENVName);
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return -1;
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}
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}
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else
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{
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printf("can not found mxp record: %s\n", strENVName);
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return -1;
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}
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printf("env_offset=0x%X env_size=0x%X\n", *offset, *size);
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return 0;
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}
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#elif defined(CONFIG_MSTAR_ENV_OFFSET)
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static image_header_t *_get_image_header(void)
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{
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return (image_header_t *)(MS_SPI_ADDR+MS_SPI_BOOT_ROM_SIZE);
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}
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int ms_get_spi_env_offset(void)
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{
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int spi_env_offset= MS_SPI_UBOOT_SIZE+MS_SPI_BOOT_ROM_SIZE;
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image_header_t *hdr=_get_image_header();
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if(image_check_magic(hdr))
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{
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spi_env_offset=(((image_get_image_size(hdr) -1 ) / CONFIG_ENV_SECT_SIZE )+1)*CONFIG_ENV_SECT_SIZE + MS_SPI_BOOT_ROM_SIZE;
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}
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else
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{
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printf("Not a img type UBOOT!! Using default spi_env_offset !!\n");
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}
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printf("spi_env_offset=0x%08X\n",spi_env_offset);
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return spi_env_offset;
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}
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#endif
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#if defined(CONFIG_ENV_OFFSET_REDUND)
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int saveenv(void)
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{
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env_t env_new;
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char *saved_buffer = NULL, flag = OBSOLETE_FLAG;
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u32 saved_size, saved_offset, sector = 1;
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int ret;
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if (!env_flash) {
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env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,
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CONFIG_ENV_SPI_CS,
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CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
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if (!env_flash) {
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set_default_env("!spi_flash_probe() failed");
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return 1;
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}
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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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env_new.flags = ACTIVE_FLAG;
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#ifdef CONFIG_MS_PARTITION
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int mxp_env_size = 0;
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mxp_get_env(&CONFIG_ENV_OFFSET, &mxp_env_size);
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if(mxp_env_size != CONFIG_ENV_SIZE * 2)
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{
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puts("mxp env size error\n");
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return 1;
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}
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#elif define(CONFIG_MSTAR_ENV_OFFSET)
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CONFIG_ENV_OFFSET= ms_get_spi_env_offset();
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#endif
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if (gd->env_valid == 1) {
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env_new_offset = CONFIG_ENV_OFFSET_REDUND;
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env_offset = CONFIG_ENV_OFFSET;
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} else {
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env_new_offset = CONFIG_ENV_OFFSET;
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env_offset = CONFIG_ENV_OFFSET_REDUND;
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}
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/* Is the sector larger than the env (i.e. embedded) */
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if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
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saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
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saved_offset = env_new_offset + CONFIG_ENV_SIZE;
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saved_buffer = malloc(saved_size);
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if (!saved_buffer) {
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ret = 1;
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goto done;
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}
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ret = spi_flash_read(env_flash, saved_offset,
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saved_size, saved_buffer);
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if (ret)
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goto done;
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}
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if (CONFIG_ENV_SIZE > CONFIG_ENV_SECT_SIZE) {
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sector = CONFIG_ENV_SIZE / CONFIG_ENV_SECT_SIZE;
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if (CONFIG_ENV_SIZE % CONFIG_ENV_SECT_SIZE)
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sector++;
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}
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puts("Erasing SPI flash...");
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ret = spi_flash_erase(env_flash, env_new_offset,
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sector * CONFIG_ENV_SECT_SIZE);
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if (ret)
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goto done;
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puts("Writing to SPI flash...");
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ret = spi_flash_write(env_flash, env_new_offset,
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CONFIG_ENV_SIZE, &env_new);
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if (ret)
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goto done;
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if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
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ret = spi_flash_write(env_flash, saved_offset,
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saved_size, saved_buffer);
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if (ret)
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goto done;
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}
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ret = spi_flash_write(env_flash, env_offset + offsetof(env_t, flags),
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sizeof(env_new.flags), &flag);
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if (ret)
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goto done;
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puts("done\n");
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gd->env_valid = gd->env_valid == 2 ? 1 : 2;
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printf("Valid environment: %d\n", (int)gd->env_valid);
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done:
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if (saved_buffer)
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free(saved_buffer);
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return ret;
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}
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void env_relocate_spec(void)
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{
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int ret;
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int crc1_ok = 0, crc2_ok = 0;
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env_t *tmp_env1 = NULL;
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env_t *tmp_env2 = NULL;
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env_t *ep = NULL;
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#ifdef CONFIG_MS_PARTITION
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int mxp_env_size = 0;
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mxp_get_env(&CONFIG_ENV_OFFSET, &mxp_env_size);
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if(mxp_env_size != CONFIG_ENV_SIZE * 2)
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{
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set_default_env("mxp env size error");
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return;
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}
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#elif define(CONFIG_MSTAR_ENV_OFFSET)
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CONFIG_ENV_OFFSET= ms_get_spi_env_offset();
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#endif
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tmp_env1 = (env_t *)malloc(CONFIG_ENV_SIZE);
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tmp_env2 = (env_t *)malloc(CONFIG_ENV_SIZE);
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if (!tmp_env1 || !tmp_env2) {
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set_default_env("!malloc() failed");
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goto out;
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}
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env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
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CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
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if (!env_flash) {
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set_default_env("!spi_flash_probe() failed");
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goto out;
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}
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ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET,
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CONFIG_ENV_SIZE, tmp_env1);
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if (ret) {
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set_default_env("!spi_flash_read() failed");
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goto err_read;
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}
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if (crc32(0, tmp_env1->data, ENV_SIZE) == tmp_env1->crc)
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crc1_ok = 1;
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ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET_REDUND,
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CONFIG_ENV_SIZE, tmp_env2);
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if (!ret) {
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if (crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc)
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crc2_ok = 1;
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}
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if (!crc1_ok && !crc2_ok) {
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set_default_env("!bad CRC");
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goto err_read;
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} else if (crc1_ok && !crc2_ok) {
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gd->env_valid = 1;
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} else if (!crc1_ok && crc2_ok) {
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gd->env_valid = 2;
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} else if (tmp_env1->flags == ACTIVE_FLAG &&
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tmp_env2->flags == OBSOLETE_FLAG) {
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gd->env_valid = 1;
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} else if (tmp_env1->flags == OBSOLETE_FLAG &&
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tmp_env2->flags == ACTIVE_FLAG) {
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gd->env_valid = 2;
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} else if (tmp_env1->flags == tmp_env2->flags) {
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gd->env_valid = 2;
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} else if (tmp_env1->flags == 0xFF) {
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gd->env_valid = 2;
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} else {
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/*
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* this differs from code in env_flash.c, but I think a sane
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* default path is desirable.
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*/
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gd->env_valid = 2;
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}
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if (gd->env_valid == 1)
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ep = tmp_env1;
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else
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ep = tmp_env2;
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ret = env_import((char *)ep, 0);
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if (!ret) {
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error("Cannot import environment: errno = %d\n", errno);
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set_default_env("env_import failed");
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}
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err_read:
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spi_flash_free(env_flash);
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env_flash = NULL;
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out:
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free(tmp_env1);
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free(tmp_env2);
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}
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#else
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int saveenv(void)
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{
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u32 saved_size, saved_offset, sector = 1;
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char *saved_buffer = NULL;
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int ret = 1;
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env_t env_new;
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#ifdef CONFIG_MS_PARTITION
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int mxp_env_size = 0;
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mxp_get_env(&CONFIG_ENV_OFFSET, &mxp_env_size);
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if(mxp_env_size != CONFIG_ENV_SIZE)
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{
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puts("mxp env size error\n");
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return 1;
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}
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#elif define(CONFIG_MSTAR_ENV_OFFSET)
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CONFIG_ENV_OFFSET= ms_get_spi_env_offset();
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#endif
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if (!env_flash) {
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env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,
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CONFIG_ENV_SPI_CS,
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CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
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if (!env_flash) {
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set_default_env("!spi_flash_probe() failed");
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return 1;
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}
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}
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/* Is the sector larger than the env (i.e. embedded) */
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if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
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saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
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saved_offset = CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE;
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saved_buffer = malloc(saved_size);
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if (!saved_buffer)
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goto done;
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ret = spi_flash_read(env_flash, saved_offset,
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saved_size, saved_buffer);
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if (ret)
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goto done;
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}
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if (CONFIG_ENV_SIZE > CONFIG_ENV_SECT_SIZE) {
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sector = CONFIG_ENV_SIZE / CONFIG_ENV_SECT_SIZE;
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if (CONFIG_ENV_SIZE % CONFIG_ENV_SECT_SIZE)
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sector++;
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}
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ret = env_export(&env_new);
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if (ret)
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goto done;
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puts("Erasing SPI flash...");
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ret = spi_flash_erase(env_flash, CONFIG_ENV_OFFSET,
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sector * CONFIG_ENV_SECT_SIZE);
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if (ret)
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goto done;
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puts("Writing to SPI flash...");
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ret = spi_flash_write(env_flash, CONFIG_ENV_OFFSET,
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CONFIG_ENV_SIZE, &env_new);
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if (ret)
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goto done;
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if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
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ret = spi_flash_write(env_flash, saved_offset,
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saved_size, saved_buffer);
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if (ret)
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goto done;
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}
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ret = 0;
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puts("done\n");
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done:
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if (saved_buffer)
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free(saved_buffer);
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return ret;
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}
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void env_relocate_spec(void)
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{
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int ret;
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char *buf = NULL;
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#ifdef CONFIG_MS_PARTITION
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int mxp_env_size = 0;
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mxp_get_env(&CONFIG_ENV_OFFSET, &mxp_env_size);
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if(mxp_env_size != CONFIG_ENV_SIZE)
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{
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set_default_env("mxp env size error");
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return;
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}
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#elif define(CONFIG_MSTAR_ENV_OFFSET)
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CONFIG_ENV_OFFSET= ms_get_spi_env_offset();
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#endif
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buf = (char *)malloc(CONFIG_ENV_SIZE);
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env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
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CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
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if (!env_flash) {
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set_default_env("!spi_flash_probe() failed");
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if (buf)
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free(buf);
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return;
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}
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ret = spi_flash_read(env_flash,
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CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf);
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if (ret) {
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set_default_env("!spi_flash_read() failed");
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goto out;
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}
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ret = env_import(buf, 1);
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#ifdef ENV_SAVE_DEFAULT
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if (!ret) // If env_import fail
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{
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saveenv();
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}
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#endif
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if (ret)
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gd->env_valid = 1;
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out:
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spi_flash_free(env_flash);
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if (buf)
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free(buf);
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env_flash = NULL;
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}
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#endif
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int env_init(void)
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{
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/* SPI flash isn't usable before relocation */
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gd->env_addr = (ulong)&default_environment[0];
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gd->env_valid = 1;
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return 0;
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}
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