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

[Jaehoon Chung]

On 12/17/20 5:43 PM, Neil Armstrong wrote:
> 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>

Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>
Tested-by: Jaehoon Chung <jh80.chung at samsung.com>

Best Regards,
Jaehoon Chung

> 
> Neil
>