summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorRoger Quadros <rogerq@ti.com>2016-03-18 13:18:12 +0200
committerTom Rini <trini@konsulko.com>2016-03-27 09:12:27 -0400
commit92667e89fc5906531a7a1ff247e1ffec61b55b13 (patch)
tree7f8ed4dd50565e74595c9faf8a402cd6f6fdfd8c
parent5350bc8f65a96d7f3c2519ae2d76cafea875103a (diff)
downloadu-boot-imx-92667e89fc5906531a7a1ff247e1ffec61b55b13.zip
u-boot-imx-92667e89fc5906531a7a1ff247e1ffec61b55b13.tar.gz
u-boot-imx-92667e89fc5906531a7a1ff247e1ffec61b55b13.tar.bz2
board: ti: am57xx: Set ethernet MAC addresses from EEPROM to env
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 <rogerq@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
-rw-r--r--board/ti/am57xx/board.c53
1 files changed, 53 insertions, 0 deletions
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