[PATCH] board: amlogic: vim3: read ethernet MAC address from efuse

[Neil Armstrong]

On 17/12/2020 08:26, Marek Szyprowski wrote:
> Add the board specific code for reading built-in ethernet MAC address
> from efuse.
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
> ---
>  board/amlogic/vim3/vim3.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/board/amlogic/vim3/vim3.c b/board/amlogic/vim3/vim3.c
> index 09ef39ff30..a36df61583 100644
> --- a/board/amlogic/vim3/vim3.c
> +++ b/board/amlogic/vim3/vim3.c
> @@ -11,6 +11,7 @@
>  #include <net.h>
>  #include <asm/io.h>
>  #include <asm/arch/eth.h>
> +#include <asm/arch/sm.h>
>  #include <i2c.h>
>  #include "khadas-mcu.h"
>  
> @@ -129,9 +130,27 @@ int meson_ft_board_setup(void *blob, struct bd_info *bd)
>  	return 0;
>  }
>  
> +#define EFUSE_MAC_OFFSET	0
> +#define EFUSE_MAC_SIZE		6
> +
>  int misc_init_r(void)
>  {
> +	uint8_t mac_addr[EFUSE_MAC_SIZE];
> +	ssize_t len;
> +
>  	meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
>  
> +	if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
> +		len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
> +					  mac_addr, EFUSE_MAC_SIZE);
> +		if (len != EFUSE_MAC_SIZE)
> +			return 0;
> +
> +		if (is_valid_ethaddr(mac_addr))
> +			eth_env_set_enetaddr("ethaddr", mac_addr);
> +		else
> +			meson_generate_serial_ethaddr();
> +	}
> +
>  	return 0;
>  }
> 

Thx, I wasn't aware Khadas flashed the MAC address in the fuse

I'll do a quick test on my boards.

Reviewed-by: Neil Armstrong <narmstrong at baylibre.com>

Neil