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

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@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@baylibre.com

Neil