Re: [Qemu-devel] [PATCH] pflash_cfi01: add device ID read command

[Stefan Weil <weil@mail.berlios.de>]

Am 01.05.2010 00:19, schrieb Michael Walle:
> Add support to read manufacturer and device ID. For everything else (eg.
> lock bits) 0 is returned.
>    

Signed-off-by is missing.

> ---
>   hw/pflash_cfi01.c |   20 ++++++++++++++++++++
>   1 files changed, 20 insertions(+), 0 deletions(-)
>
> diff --git a/hw/pflash_cfi01.c b/hw/pflash_cfi01.c
> index dfdced9..2d30968 100644
> --- a/hw/pflash_cfi01.c
> +++ b/hw/pflash_cfi01.c
> @@ -165,6 +165,22 @@ static uint32_t pflash_read (pflash_t *pfl,
> target_phys_addr_t offset,
>    

The patch is damaged here. Use "git send-email" to send your patch.

>           ret = pfl->status;
>           DPRINTF("%s: status %x\n", __func__, ret);
>           break;
> +    case 0x90:
> +        switch (boff) {
> +        case 0:
> +            ret = pfl->ident[0]<<  8 | pfl->ident[1];
> +            DPRINTF("%s: Manufacturer Code %04x\n", __func__, ret);
> +            break;
> +        case 1:
> +            ret = pfl->ident[2]<<  8 | pfl->ident[3];
> +            DPRINTF("%s: Device ID Code %04x\n", __func__, ret);
> +            break;
> +        default:
> +            DPRINTF("%s: Read Device Information boff=%x\n", __func__, boff);
> +            ret = 0;
> +            break;
> +        }
> +        break;
>       case 0x98: /* Query mode */
>           if (boff>  pfl->cfi_len)
>               ret = 0;
> @@ -290,6 +306,10 @@ static void pflash_write(pflash_t *pfl,
> target_phys_addr_t offset,
>    

The patch is damaged here.

>               DPRINTF("%s: Read status register\n", __func__);
>               pfl->cmd = cmd;
>               return;
> +        case 0x90: /* Read Device ID */
> +            DPRINTF("%s: Read Device information\n", __func__);
> +            pfl->cmd = cmd;
> +            return;
>           case 0x98: /* CFI query */
>               DPRINTF("%s: CFI query\n", __func__);
>               break;
>    

Regards,
Stefan