#include <spi_flash.h>
#include <search.h>
#include <errno.h>
+#include <uuid.h>
+#include <asm/cache.h>
+#include <asm/global_data.h>
#include <dm/device-internal.h>
#include <u-boot/crc.h>
-#ifndef CONFIG_SPL_BUILD
-#define INITENV
-#endif
+#define OFFSET_INVALID (~(u32)0)
#ifdef CONFIG_ENV_OFFSET_REDUND
+#define ENV_OFFSET_REDUND CONFIG_ENV_OFFSET_REDUND
+
static ulong env_offset = CONFIG_ENV_OFFSET;
static ulong env_new_offset = CONFIG_ENV_OFFSET_REDUND;
+
+#else
+
+#define ENV_OFFSET_REDUND OFFSET_INVALID
+
#endif /* CONFIG_ENV_OFFSET_REDUND */
DECLARE_GLOBAL_DATA_PTR;
-static struct spi_flash *env_flash;
-
-static int setup_flash_device(void)
+static int setup_flash_device(struct spi_flash **env_flash)
{
-#ifdef CONFIG_DM_SPI_FLASH
+#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
struct udevice *new;
int ret;
/* speed and mode will be read from DT */
ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
- CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE,
&new);
if (ret) {
env_set_default("spi_flash_probe_bus_cs() failed", 0);
return ret;
}
- env_flash = dev_get_uclass_priv(new);
+ *env_flash = dev_get_uclass_priv(new);
#else
-
- if (!env_flash) {
- env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,
- CONFIG_ENV_SPI_CS,
- CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
- if (!env_flash) {
- env_set_default("spi_flash_probe() failed", 0);
- return -EIO;
- }
+ *env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
+ CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
+ if (!*env_flash) {
+ env_set_default("spi_flash_probe() failed", 0);
+ return -EIO;
}
#endif
return 0;
{
env_t env_new;
char *saved_buffer = NULL, flag = ENV_REDUND_OBSOLETE;
- u32 saved_size, saved_offset, sector;
+ u32 saved_size = 0, saved_offset = 0, sector;
+ u32 sect_size = CONFIG_ENV_SECT_SIZE;
int ret;
+ struct spi_flash *env_flash;
- ret = setup_flash_device();
+ ret = setup_flash_device(&env_flash);
if (ret)
return ret;
+ if (IS_ENABLED(CONFIG_ENV_SECT_SIZE_AUTO))
+ sect_size = env_flash->mtd.erasesize;
+
ret = env_export(&env_new);
if (ret)
return -EIO;
}
/* Is the sector larger than the env (i.e. embedded) */
- if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
- saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
+ if (sect_size > CONFIG_ENV_SIZE) {
+ saved_size = sect_size - CONFIG_ENV_SIZE;
saved_offset = env_new_offset + CONFIG_ENV_SIZE;
saved_buffer = memalign(ARCH_DMA_MINALIGN, saved_size);
if (!saved_buffer) {
goto done;
}
- sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, CONFIG_ENV_SECT_SIZE);
+ sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, sect_size);
puts("Erasing SPI flash...");
ret = spi_flash_erase(env_flash, env_new_offset,
- sector * CONFIG_ENV_SECT_SIZE);
+ sector * sect_size);
if (ret)
goto done;
if (ret)
goto done;
- if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
+ if (sect_size > CONFIG_ENV_SIZE) {
ret = spi_flash_write(env_flash, saved_offset,
saved_size, saved_buffer);
if (ret)
printf("Valid environment: %d\n", (int)gd->env_valid);
- done:
+done:
+ spi_flash_free(env_flash);
+
if (saved_buffer)
free(saved_buffer);
int ret;
int read1_fail, read2_fail;
env_t *tmp_env1, *tmp_env2;
+ struct spi_flash *env_flash;
tmp_env1 = (env_t *)memalign(ARCH_DMA_MINALIGN,
CONFIG_ENV_SIZE);
goto out;
}
- ret = setup_flash_device();
+ ret = setup_flash_device(&env_flash);
if (ret)
goto out;
CONFIG_ENV_SIZE, tmp_env2);
ret = env_import_redund((char *)tmp_env1, read1_fail, (char *)tmp_env2,
- read2_fail);
+ read2_fail, H_EXTERNAL);
spi_flash_free(env_flash);
- env_flash = NULL;
out:
free(tmp_env1);
free(tmp_env2);
#else
static int env_sf_save(void)
{
- u32 saved_size, saved_offset, sector;
+ u32 saved_size = 0, saved_offset = 0, sector;
+ u32 sect_size = CONFIG_ENV_SECT_SIZE;
char *saved_buffer = NULL;
int ret = 1;
env_t env_new;
+ struct spi_flash *env_flash;
- ret = setup_flash_device();
+ ret = setup_flash_device(&env_flash);
if (ret)
return ret;
+ if (IS_ENABLED(CONFIG_ENV_SECT_SIZE_AUTO))
+ sect_size = env_flash->mtd.erasesize;
+
/* Is the sector larger than the env (i.e. embedded) */
- if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
- saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
+ if (sect_size > CONFIG_ENV_SIZE) {
+ saved_size = sect_size - CONFIG_ENV_SIZE;
saved_offset = CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE;
saved_buffer = malloc(saved_size);
if (!saved_buffer)
if (ret)
goto done;
- sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, CONFIG_ENV_SECT_SIZE);
+ sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, sect_size);
puts("Erasing SPI flash...");
ret = spi_flash_erase(env_flash, CONFIG_ENV_OFFSET,
- sector * CONFIG_ENV_SECT_SIZE);
+ sector * sect_size);
if (ret)
goto done;
if (ret)
goto done;
- if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
+ if (sect_size > CONFIG_ENV_SIZE) {
ret = spi_flash_write(env_flash, saved_offset,
saved_size, saved_buffer);
if (ret)
ret = 0;
puts("done\n");
- done:
+done:
+ spi_flash_free(env_flash);
+
if (saved_buffer)
free(saved_buffer);
{
int ret;
char *buf = NULL;
+ struct spi_flash *env_flash;
buf = (char *)memalign(ARCH_DMA_MINALIGN, CONFIG_ENV_SIZE);
if (!buf) {
return -EIO;
}
- ret = setup_flash_device();
+ ret = setup_flash_device(&env_flash);
if (ret)
goto out;
goto err_read;
}
- ret = env_import(buf, 1);
+ ret = env_import(buf, 1, H_EXTERNAL);
if (!ret)
gd->env_valid = ENV_VALID;
err_read:
spi_flash_free(env_flash);
- env_flash = NULL;
out:
free(buf);
}
#endif
-#if CONFIG_ENV_ADDR != 0x0
+static int env_sf_erase(void)
+{
+ int ret;
+ env_t env;
+ struct spi_flash *env_flash;
+
+ ret = setup_flash_device(&env_flash);
+ if (ret)
+ return ret;
+
+ memset(&env, 0, sizeof(env_t));
+ ret = spi_flash_write(env_flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, &env);
+ if (ret)
+ goto done;
+
+ if (ENV_OFFSET_REDUND != OFFSET_INVALID)
+ ret = spi_flash_write(env_flash, ENV_OFFSET_REDUND, CONFIG_ENV_SIZE, &env);
+
+done:
+ spi_flash_free(env_flash);
+
+ return ret;
+}
+
__weak void *env_sf_get_env_addr(void)
{
+#ifndef CONFIG_SPL_BUILD
return (void *)CONFIG_ENV_ADDR;
-}
+#else
+ return NULL;
#endif
+}
-#if defined(INITENV) && (CONFIG_ENV_ADDR != 0x0)
-static int env_sf_init(void)
+/*
+ * check if Environment on CONFIG_ENV_ADDR is valid.
+ */
+static int env_sf_init_addr(void)
{
env_t *env_ptr = (env_t *)env_sf_get_env_addr();
+ if (!env_ptr)
+ return -ENOENT;
+
if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
- gd->env_addr = (ulong)&(env_ptr->data);
- gd->env_valid = 1;
+ gd->env_addr = (ulong)&(env_ptr->data);
+ gd->env_valid = ENV_VALID;
} else {
- gd->env_addr = (ulong)&default_environment[0];
- gd->env_valid = 1;
+ gd->env_valid = ENV_INVALID;
}
return 0;
}
+
+#if defined(CONFIG_ENV_SPI_EARLY)
+/*
+ * early load environment from SPI flash (before relocation)
+ * and check if it is valid.
+ */
+static int env_sf_init_early(void)
+{
+ int ret;
+ int read1_fail;
+ int read2_fail;
+ int crc1_ok;
+ env_t *tmp_env2 = NULL;
+ env_t *tmp_env1;
+ struct spi_flash *env_flash;
+
+ /*
+ * if malloc is not ready yet, we cannot use
+ * this part yet.
+ */
+ if (!gd->malloc_limit)
+ return -ENOENT;
+
+ tmp_env1 = (env_t *)memalign(ARCH_DMA_MINALIGN,
+ CONFIG_ENV_SIZE);
+ if (IS_ENABLED(CONFIG_SYS_REDUNDAND_ENVIRONMENT))
+ tmp_env2 = (env_t *)memalign(ARCH_DMA_MINALIGN,
+ CONFIG_ENV_SIZE);
+
+ if (!tmp_env1 || !tmp_env2)
+ goto out;
+
+ ret = setup_flash_device(&env_flash);
+ if (ret)
+ goto out;
+
+ read1_fail = spi_flash_read(env_flash, CONFIG_ENV_OFFSET,
+ CONFIG_ENV_SIZE, tmp_env1);
+
+ if (IS_ENABLED(CONFIG_SYS_REDUNDAND_ENVIRONMENT)) {
+ read2_fail = spi_flash_read(env_flash,
+ CONFIG_ENV_OFFSET_REDUND,
+ CONFIG_ENV_SIZE, tmp_env2);
+ ret = env_check_redund((char *)tmp_env1, read1_fail,
+ (char *)tmp_env2, read2_fail);
+
+ if (ret < 0)
+ goto err_read;
+
+ if (gd->env_valid == ENV_VALID)
+ gd->env_addr = (unsigned long)&tmp_env1->data;
+ else
+ gd->env_addr = (unsigned long)&tmp_env2->data;
+ } else {
+ if (read1_fail)
+ goto err_read;
+
+ crc1_ok = crc32(0, tmp_env1->data, ENV_SIZE) ==
+ tmp_env1->crc;
+ if (!crc1_ok)
+ goto err_read;
+
+ /* if valid -> this is our env */
+ gd->env_valid = ENV_VALID;
+ gd->env_addr = (unsigned long)&tmp_env1->data;
+ }
+
+ spi_flash_free(env_flash);
+
+ return 0;
+err_read:
+ spi_flash_free(env_flash);
+
+ free(tmp_env1);
+ if (IS_ENABLED(CONFIG_SYS_REDUNDAND_ENVIRONMENT))
+ free(tmp_env2);
+out:
+ /* env is not valid. always return 0 */
+ gd->env_valid = ENV_INVALID;
+ return 0;
+}
+#endif
+
+static int env_sf_init(void)
+{
+ int ret = env_sf_init_addr();
+ if (ret != -ENOENT)
+ return ret;
+#ifdef CONFIG_ENV_SPI_EARLY
+ return env_sf_init_early();
#endif
+ /*
+ * return here -ENOENT, so env_init()
+ * can set the init bit and later if no
+ * other Environment storage is defined
+ * can set the default environment
+ */
+ return -ENOENT;
+}
U_BOOT_ENV_LOCATION(sf) = {
.location = ENVL_SPI_FLASH,
- ENV_NAME("SPI Flash")
+ ENV_NAME("SPIFlash")
.load = env_sf_load,
.save = ENV_SAVE_PTR(env_sf_save),
-#if defined(INITENV) && (CONFIG_ENV_ADDR != 0x0)
+ .erase = ENV_ERASE_PTR(env_sf_erase),
.init = env_sf_init,
-#endif
};
projects / platform / kernel / u-boot.git / blobdiff