[PATCH 3/3] mtd: spi-nor: add support for s25fl128s

[Fabio Estevam]

Hi Brian,

On Mon, Aug 11, 2014 at 9:54 PM, Huang Shijie <shijie.huang at intel.com> wrote:
> We need to store the six bytes ID for s25fl128s, since it shares the same
> five bytes with s25fl129p1.
>
> This patch adds a macro INFO6 which is used for the six bytes ID flash, and adds
> a new item for the s25fl128s.
>
> Signed-off-by: Huang Shijie <shijie.huang at intel.com>
> ---
>  drivers/mtd/spi-nor/spi-nor.c |   18 ++++++++++++++++++
>  1 files changed, 18 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
> index a0923b0..c130bf7 100644
> --- a/drivers/mtd/spi-nor/spi-nor.c
> +++ b/drivers/mtd/spi-nor/spi-nor.c
> @@ -471,6 +471,23 @@ err:
>                 .flags = (_flags),                                      \
>         })
>
> +#define INFO6(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags)    \
> +       ((kernel_ulong_t)&(struct flash_info) {                         \
> +               .id = {                                                 \
> +                       ((_jedec_id) >> 16) & 0xff,                     \
> +                       ((_jedec_id) >> 8) & 0xff,                      \
> +                       (_jedec_id) & 0xff,                             \
> +                       ((_ext_id) >> 16) & 0xff,                       \
> +                       ((_ext_id) >> 8) & 0xff,                        \
> +                       (_ext_id) & 0xff,                               \
> +                       },                                              \
> +               .id_len = 6,                                            \
> +               .sector_size = (_sector_size),                          \
> +               .n_sectors = (_n_sectors),                              \
> +               .page_size = 256,                                       \
> +               .flags = (_flags),                                      \
> +       })
> +
>  #define CAT25_INFO(_sector_size, _n_sectors, _page_size, _addr_width, _flags)  \
>         ((kernel_ulong_t)&(struct flash_info) {                         \
>                 .sector_size = (_sector_size),                          \
> @@ -565,6 +582,7 @@ const struct spi_device_id spi_nor_ids[] = {
>         { "s70fl01gs",  INFO(0x010221, 0x4d00, 256 * 1024, 256, 0) },
>         { "s25sl12800", INFO(0x012018, 0x0300, 256 * 1024,  64, 0) },
>         { "s25sl12801", INFO(0x012018, 0x0301,  64 * 1024, 256, 0) },
> +       { "s25fl128s",  INFO6(0x012018, 0x4d0180, 64 * 1024, 256, SPI_NOR_QUAD_READ) },
>         { "s25fl129p0", INFO(0x012018, 0x4d00, 256 * 1024,  64, 0) },
>         { "s25fl129p1", INFO(0x012018, 0x4d01,  64 * 1024, 256, 0) },
>         { "s25sl004a",  INFO(0x010212,      0,  64 * 1024,   8, 0) },

We have a s25fl128s flash on imx6sx-sdb board and this patch would be helpful.

Do you see any issues with it?

Thanks,

Fabio Estevam