[U-Boot] [PATCH v3 2/9] sf: Update Atmel flash params

[Bo Shen]

Hi Meng,

On 12/10/2014 08:51 PM, Bin Meng wrote:
> Update flash sector size to 4KiB as long as flash supports sector
> erase (20h) command. Correct AT25DF321 JEDEC ID and bulk erase
> command to 50h instead of D8h. Also add AT25DF321A params per
> datasheet.
>
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
> ---
>
>   drivers/mtd/spi/sf_internal.h |  5 +++++
>   drivers/mtd/spi/sf_params.c   | 17 +++++++++--------
>   drivers/mtd/spi/sf_probe.c    |  4 ++++
>   3 files changed, 18 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h
> index 785f7a9..8010fc5 100644
> --- a/drivers/mtd/spi/sf_internal.h
> +++ b/drivers/mtd/spi/sf_internal.h
> @@ -106,6 +106,11 @@ enum {
>   #define SPI_FLASH_PAGE_ERASE_TIMEOUT		(5 * CONFIG_SYS_HZ)
>   #define SPI_FLASH_SECTOR_ERASE_TIMEOUT	(10 * CONFIG_SYS_HZ)
>
> +/* Atmel specific */
> +#ifdef CONFIG_SPI_FLASH_ATMEL
> +# define CMD_ATMEL_BLK_ERASE	0x50
> +#endif
> +
>   /* SST specific */
>   #ifdef CONFIG_SPI_FLASH_SST
>   # define CMD_SST_BP		0x02    /* Byte Program */
> diff --git a/drivers/mtd/spi/sf_params.c b/drivers/mtd/spi/sf_params.c
> index 5482700..cc4cd60 100644
> --- a/drivers/mtd/spi/sf_params.c
> +++ b/drivers/mtd/spi/sf_params.c
> @@ -15,14 +15,15 @@
>   /* SPI/QSPI flash device params structure */
>   const struct spi_flash_params spi_flash_params_table[] = {
>   #ifdef CONFIG_SPI_FLASH_ATMEL		/* ATMEL */
> -	{"AT45DB011D",	   0x1f2200, 0x0,	64 * 1024,     4, RD_NORM,		    SECT_4K},
> -	{"AT45DB021D",	   0x1f2300, 0x0,	64 * 1024,     8, RD_NORM,		    SECT_4K},
> -	{"AT45DB041D",	   0x1f2400, 0x0,	64 * 1024,     8, RD_NORM,		    SECT_4K},
> -	{"AT45DB081D",	   0x1f2500, 0x0,	64 * 1024,    16, RD_NORM,		    SECT_4K},
> -	{"AT45DB161D",	   0x1f2600, 0x0,	64 * 1024,    32, RD_NORM,		    SECT_4K},
> -	{"AT45DB321D",	   0x1f2700, 0x0,	64 * 1024,    64, RD_NORM,		    SECT_4K},
> -	{"AT45DB641D",	   0x1f2800, 0x0,	64 * 1024,   128, RD_NORM,		    SECT_4K},
> -	{"AT25DF321",      0x1f4701, 0x0,	64 * 1024,    64, RD_NORM,		    SECT_4K},
> +	{"AT45DB011D",	   0x1f2200, 0x0,	 2 * 1024,    64, RD_NORM,		          0},
> +	{"AT45DB021D",	   0x1f2300, 0x0,	 2 * 1024,   128, RD_NORM,		          0},
> +	{"AT45DB041D",	   0x1f2400, 0x0,	 2 * 1024,   256, RD_NORM,		          0},
> +	{"AT45DB081D",	   0x1f2500, 0x0,	 2 * 1024,   512, RD_NORM,		          0},
> +	{"AT45DB161D",	   0x1f2600, 0x0,	 4 * 1024,   512, RD_NORM,		          0},
> +	{"AT45DB321D",	   0x1f2700, 0x0,	 4 * 1024,  1024, RD_NORM,		          0},

In datasheet, the id is 0x1f2701. Doc number is: 3597Q-DFLASH-6/11. I 
can not find any new datasheet.

And I test on at91sam9m10g45ek board, it also read as this ID (0x1f2701).

So, if you plan to send new version, can you help add this ID? If not, 
maybe follow up patch will be better.

Thanks.

> +	{"AT45DB641D",	   0x1f2800, 0x0,	 2 * 1024,  4096, RD_NORM,		          0},
> +	{"AT25DF321",      0x1f4700, 0x0,	 4 * 1024,  1024, RD_NORM,		    SECT_4K},
> +	{"AT25DF321A",     0x1f4701, 0x0,	 4 * 1024,  1024, RD_NORM,		    SECT_4K},
>   #endif
>   #ifdef CONFIG_SPI_FLASH_EON		/* EON */
>   	{"EN25Q32B",	   0x1c3016, 0x0,	64 * 1024,    64, RD_NORM,			  0},
> diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c
> index ce9987f..13fda44 100644
> --- a/drivers/mtd/spi/sf_probe.c
> +++ b/drivers/mtd/spi/sf_probe.c
> @@ -179,7 +179,11 @@ static int spi_flash_validate_params(struct spi_slave *spi, u8 *idcode,
>   		flash->erase_cmd = CMD_ERASE_32K;
>   		flash->erase_size = 32768 << flash->shift;
>   	} else {
> +#ifdef CONFIG_SPI_FLASH_ATMEL
> +		flash->erase_cmd = CMD_ATMEL_BLK_ERASE;
> +#else
>   		flash->erase_cmd = CMD_ERASE_64K;
> +#endif
>   		flash->erase_size = flash->sector_size;
>   	}
>
>

Best Regards,
Bo Shen