Add the board specific code for reading built-in ethernet MAC address from efuse
NOTE: MAC is stored in ASCII format, 1bytes = 2characters by 0 offset
if mac from efuse not valid we use meson_generate_serial_ethaddr
NOTE: remake odroid-n2.c variant from Neil Armstrong narmstrong@baylibre.com
Signed-off-by: Artem Lapkin art@khadas.com --- board/amlogic/vim3/vim3.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+)
diff --git a/board/amlogic/vim3/vim3.c b/board/amlogic/vim3/vim3.c index 09ef39ff30..c5d19cc17b 100644 --- a/board/amlogic/vim3/vim3.c +++ b/board/amlogic/vim3/vim3.c @@ -11,9 +11,14 @@ #include <net.h> #include <asm/io.h> #include <asm/arch/eth.h> +#include <asm/arch/sm.h> #include <i2c.h> #include "khadas-mcu.h"
+#define EFUSE_MAC_OFFSET 0 +#define EFUSE_MAC_SIZE 12 +#define MAC_ADDR_LEN 6 + /* * The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between @@ -131,7 +136,37 @@ int meson_ft_board_setup(void *blob, struct bd_info *bd)
int misc_init_r(void) { + u8 mac_addr[MAC_ADDR_LEN]; + char efuse_mac_addr[EFUSE_MAC_SIZE], tmp[3]; + 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, efuse_mac_addr, EFUSE_MAC_SIZE); + if (len != EFUSE_MAC_SIZE) + return 0; + + /* MAC is stored in ASCII format, 1bytes = 2characters */ + for (int i = 0; i < 6; i++) { + tmp[0] = efuse_mac_addr[i * 2]; + tmp[1] = efuse_mac_addr[i * 2 + 1]; + tmp[2] = '\0'; + mac_addr[i] = simple_strtoul(tmp, NULL, 16); + } + + if (is_valid_ethaddr(mac_addr)) + eth_env_set_enetaddr("ethaddr", mac_addr); + else + meson_generate_serial_ethaddr(); + + eth_env_get_enetaddr("ethaddr", mac_addr); + printf("[i] setup onboard mac %02X:%02X:%02X:%02X:%02X:%02X\n", + mac_addr[0],mac_addr[1],mac_addr[2], + mac_addr[3],mac_addr[4],mac_addr[5]); + + } + return 0; }