The MAC addresses for the PRU Ethernet ports will be available in the
board EEPROM as an address range. Populate those MAC addresses (if valid)
into the u-boot environment so that they can be passed on to the
device tree during fdt_fixup_ethernet().
Signed-off-by: Roger Quadros <rog...@ti.com>
---
board/ti/am57xx/board.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/board/ti/am57xx/board.c b/board/ti/am57xx/board.c
index 67191af..18416ef 100644
--- a/board/ti/am57xx/board.c
+++ b/board/ti/am57xx/board.c
@@ -537,12 +537,39 @@ static struct cpsw_platform_data cpsw_data = {
.version = CPSW_CTRL_VERSION_2,
};
+static u64 mac_to_u64(u8 mac[6])
+{
+ int i;
+ u64 addr = 0;
+
+ for (i = 0; i < 6; i++) {
+ addr <<= 8;
+ addr |= mac[i];
+ }
+
+ return addr;
+}
+
+static void u64_to_mac(u64 addr, u8 mac[6])
+{
+ mac[5] = addr;
+ mac[4] = addr >> 8;
+ mac[3] = addr >> 16;
+ mac[2] = addr >> 24;
+ mac[1] = addr >> 32;
+ mac[0] = addr >> 40;
+}
+
int board_eth_init(bd_t *bis)
{
int ret;
uint8_t mac_addr[6];
uint32_t mac_hi, mac_lo;
uint32_t ctrl_val;
+ int i;
+ u64 mac1, mac2;
+ u8 mac_addr1[6], mac_addr2[6];
+ int num_macs;
/* try reading mac address from efuse */
mac_lo = readl((*ctrl)->control_core_mac_id_0_lo);
@@ -583,6 +610,32 @@ int board_eth_init(bd_t *bis)
if (ret < 0)
printf("Error %d registering CPSW switch\n", ret);
+ /*
+ * Export any Ethernet MAC addresses from EEPROM.
+ * On AM57xx the 2 MAC addresses define the address range
+ */
+ board_ti_get_eth_mac_addr(0, mac_addr1);
+ board_ti_get_eth_mac_addr(1, mac_addr2);
+
+ if (is_valid_ethaddr(mac_addr1) && is_valid_ethaddr(mac_addr2)) {
+ mac1 = mac_to_u64(mac_addr1);
+ mac2 = mac_to_u64(mac_addr2);
+
+ /* must contain an address range */
+ num_macs = mac2 - mac1 + 1;
+ /* <= 50 to protect against user programming error */
+ if (num_macs > 0 && num_macs <= 50) {
+ for (i = 0; i < num_macs; i++) {
+ u64_to_mac(mac1 + i, mac_addr);
+ if (is_valid_ethaddr(mac_addr)) {
+ eth_setenv_enetaddr_by_index("eth",
+ i + 2,
+ mac_addr);
+ }
+ }
+ }
+ }
+
return ret;
}
#endif
--
2.5.0
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