[U-Boot] [PATCH 12/12] sf: Pass rd_qeb_req variable as 0 for status and config reg reads

[Simon Glass]

Hi Jagannadha,

On Mon, Dec 31, 2012 at 4:14 AM, Jagannadha Sutradharudu Teki
<jagannadh.teki at gmail.com> wrote:
> Config and Status register reads doesn't require to set
> the quad enable bit, hence rd_qeb_req variable passed as 0.
>
> Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki at gmail.com>

A few more general comments:

Please can you look at enhancing 'sf test' to support your modes. Then
we can run 'sf test' and test which ones work.

I wonder if we should something to help with things like
spi_flash_read_common(flash, &cmd, sizeof(cmd), (void *)data, 1);

Perhaps you should define spi_flash_xfer_byte(flash, int cmd, int *resp)

which writes a single byte command and reads a single byte response?

Regards,
Simon

> ---
>  drivers/mtd/spi/spi_flash.c |    6 ++++--
>  1 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
> index 15ad05c..7a15a69 100644
> --- a/drivers/mtd/spi/spi_flash.c
> +++ b/drivers/mtd/spi/spi_flash.c
> @@ -293,7 +293,8 @@ int spi_flash_cmd_read_status(struct spi_flash *flash, void *data)
>         int ret;
>
>         cmd = CMD_READ_STATUS;
> -       ret = spi_flash_read_common(flash, &cmd, sizeof(cmd), (void *)data, 1);
> +       ret = spi_flash_read_common(flash, &cmd, 0,
> +                               sizeof(cmd), (void *)data, 1);
>         if (ret < 0) {
>                 debug("SF: fail to read status register\n");
>                 return ret;
> @@ -343,7 +344,8 @@ int spi_flash_cmd_read_config(struct spi_flash *flash, void *data)
>         int ret;
>
>         cmd = CMD_READ_CONFIG;
> -       ret = spi_flash_read_common(flash, &cmd, sizeof(cmd), (void *)data, 1);
> +       ret = spi_flash_read_common(flash, &cmd, 0,
> +                               sizeof(cmd), (void *)data, 1);
>         if (ret < 0) {
>                 debug("SF: fail to read config register\n");
>                 return ret;
> --
> 1.7.0.4
>
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