[U-Boot] [PATCH 2/2] usb: eth: smsc95xx: Add EEPROM access support

[Pavel Machek]

On Tue 2014-10-07 11:19:37, Alban Bedel wrote:
> Use the new ethernet eeprom API to allow the user to read/write the
> EEPROM.
> 
> Change-Id: I21233b6ee805a75bd8a03ca12e22c41421b7629c
> Signed-off-by: Alban Bedel <alban.bedel at avionic-design.de>
> ---
>  drivers/usb/eth/smsc95xx.c | 199 +++++++++++++++++++++++++++++++++++++++++++--
>  1 file changed, 192 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/usb/eth/smsc95xx.c b/drivers/usb/eth/smsc95xx.c
> index 6bca34d..eb29565 100644
> --- a/drivers/usb/eth/smsc95xx.c
> +++ b/drivers/usb/eth/smsc95xx.c
> @@ -59,6 +59,8 @@
>  
>  #define E2P_CMD				0x30
>  #define E2P_CMD_BUSY_			0x80000000
> +#define E2P_CMD_EWEN_			0x20000000
> +#define E2P_CMD_WRITE_			0x30000000
>  #define E2P_CMD_READ_			0x00000000
>  #define E2P_CMD_TIMEOUT_		0x00000400
>  #define E2P_CMD_LOADED_			0x00000200
> @@ -146,6 +148,131 @@ struct smsc95xx_private {
>  	int have_hwaddr;  /* 1 if we have a hardware MAC address */
>  };
>  
> +#ifdef CONFIG_CMD_ETH_EEPROM

Is this layout common for all machines using this driver? If not, is
it worth comment which machine is it?

> +static u8 eeprom_defaults[] = {
> +	/* 0x00 */
> +	0xA5,		/* Signature */
> +	0xFF, 0xFF,	/* MAC bytes 0-1 */
> +	0xFF, 0xFF,	/* MAC bytes 2-3 */
> +	0xFF, 0xFF,	/* MAC bytes 4-5 */

Normally, we use all zeros for unset...?

Best regards,
								Pavel

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