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| author | Terry Lv <r65388@freescale.com> | 2011-04-19 17:42:46 +0800 |
|---|---|---|
| committer | Terry Lv <r65388@freescale.com> | 2011-04-20 18:09:05 +0800 |
| commit | 2b7f1cffc6aff0e438c1d5d0eb438bc72b576fc3 (patch) | |
| tree | 5890ce7ace57388a5004b8c87bcc950707506fd8 /drivers/mtd/spi | |
| parent | ba8a0db66ab3574637946721b213f27fc0965f98 (diff) | |
| download | u-boot-imx-2b7f1cffc6aff0e438c1d5d0eb438bc72b576fc3.zip u-boot-imx-2b7f1cffc6aff0e438c1d5d0eb438bc72b576fc3.tar.gz u-boot-imx-2b7f1cffc6aff0e438c1d5d0eb438bc72b576fc3.tar.bz2 | |
ENGR00142322: mx53-smd: spi nor: can't erase 0x200000 size
Spi nor can't erase 0x200000 size.
There are two issues in this CR.
1. Spi nor can't erase 0x200000 size.
2. Whole chip erase don't work.
The solution will be:
1. Delay more time for WIP check.
2. Use normal erase for whole chip erase.
Signed-off-by: Terry Lv <r65388@freescale.com>
Diffstat (limited to 'drivers/mtd/spi')
| -rw-r--r-- | drivers/mtd/spi/imx_spi_nor_m25pxx.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/mtd/spi/imx_spi_nor_m25pxx.c b/drivers/mtd/spi/imx_spi_nor_m25pxx.c index a87bab6..9ad2262 100644 --- a/drivers/mtd/spi/imx_spi_nor_m25pxx.c +++ b/drivers/mtd/spi/imx_spi_nor_m25pxx.c @@ -121,8 +121,7 @@ static s32 spi_nor_status(struct spi_flash *flash) static int wait_till_ready(struct spi_flash *flash) { int sr; - int i; - int times = 100; + int times = 10000; do { sr = spi_nor_status(flash); @@ -186,7 +185,7 @@ static int spi_nor_flash_read(struct spi_flash *flash, u32 from, { struct imx_spi_flash *imx_sf = to_imx_spi_flash(flash); int rx_len = 0, count = 0, i = 0; - int addr, cmd_len, status; + int addr, cmd_len; u8 txer[SPI_FIFOSIZE] = { 0 }; u8 *s = txer; u8 *d = buf; @@ -270,7 +269,7 @@ static int _fsl_spi_write(struct spi_flash *flash, const void *buf, int len, int u8 txer[SPI_FIFOSIZE] = { 0 }; u8 *d = txer; u8 *s = (u8 *) buf; - int delta = 0, l = 0, i = 0, count = 0, status; + int delta = 0, l = 0, i = 0, count = 0; count = len; delta = count % 4; @@ -421,9 +420,13 @@ static int spi_nor_flash_erase(struct spi_flash *flash, u32 offset, struct imx_spi_flash *imx_sf = to_imx_spi_flash(flash); /* whole-chip erase? */ + /* if (len == imx_sf->params->device_size) { if (erase_chip(flash)) return -EIO; + else + return 0; + */ /* REVISIT in some cases we could speed up erasing large regions * by using OPCODE_SE instead of OPCODE_BE_4K. We may have set up @@ -431,18 +434,15 @@ static int spi_nor_flash_erase(struct spi_flash *flash, u32 offset, */ /* "sector"-at-a-time erase */ - } else { - len = roundup(len, imx_sf->params->block_size); - while (len) { - if (erase_sector(flash, offset)) - return -EIO; + len = roundup(len, imx_sf->params->block_size); + while (len) { + if (erase_sector(flash, offset)) + return -EIO; - offset += imx_sf->params->block_size; - len -= imx_sf->params->block_size; - } + offset += imx_sf->params->block_size; + len -= imx_sf->params->block_size; } - return 0; } |