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Change CFG_ENV_SIZE to CFG_ENV_SECT_SIZE for SPI sector erase

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The CFG_ENV_SIZE is not suitable used for SPI flash erase
sector size if CFG_ENV_SIZE is less than CFG_ENV_SECT_SIZE.
Add condition check if CFG_ENV_SIZE is larger than
CFG_ENV_SECT_SIZE, calculate the right number of sectors for
erasing.

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
This commit is contained in:
TsiChung Liew 2008-08-06 19:37:17 -05:00 committed by John Rigby
parent 4cb4e654ca
commit 07efc9e321
1 changed files with 9 additions and 1 deletions
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10
common/env_sf.c
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@ -63,13 +63,21 @@ uchar env_get_char_spec(int index)
int saveenv(void)
{
u32 sector = 1;
if (!env_flash) {
puts("Environment SPI flash not initialized\n");
return 1;
}
if (CFG_ENV_SIZE > CFG_ENV_SECT_SIZE) {
sector = CFG_ENV_SIZE / CFG_ENV_SECT_SIZE;
if (CFG_ENV_SIZE % CFG_ENV_SECT_SIZE)
sector++;
}
puts("Erasing SPI flash...");
if (spi_flash_erase(env_flash, CFG_ENV_OFFSET, CFG_ENV_SIZE))
if (spi_flash_erase(env_flash, CFG_ENV_OFFSET, sector * CFG_ENV_SECT_SIZE))
return 1;
puts("Writing to SPI flash...");