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

[Aurelien Jarno]

On Sat, May 01, 2010 at 07:34:06PM +0200, Michael Walle wrote:
> Add support to read manufacturer and device ID. For everything else (eg.
> lock bits) 0 is returned.
> 
> Signed-off-by: Michael Walle <address@hidden>

Thanks, applied.

> ---
>  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 6b2adba..bc901e6 100644
> --- a/hw/pflash_cfi01.c
> +++ b/hw/pflash_cfi01.c
> @@ -166,6 +166,22 @@ static uint32_t pflash_read (pflash_t *pfl, 
> target_phys_addr_t offset,
>          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;
> @@ -283,6 +299,10 @@ static void pflash_write(pflash_t *pfl, 
> target_phys_addr_t offset,
>              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;
> -- 
> 1.5.6.5
> 
> 
> 
> 

-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
address@hidden                 http://www.aurel32.net