Blackfin: bf526-ezbrd: get MAC from flash
The MAC address is stored in the last flash sector rather than OTP.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/board/bf526-ezbrd/bf526-ezbrd.c b/board/bf526-ezbrd/bf526-ezbrd.c
index 52d82cd..4695b11 100644
--- a/board/bf526-ezbrd/bf526-ezbrd.c
+++ b/board/bf526-ezbrd/bf526-ezbrd.c
@@ -27,21 +27,20 @@
#ifdef CONFIG_BFIN_MAC
static void board_init_enetaddr(uchar *mac_addr)
{
+#ifdef CONFIG_SYS_NO_FLASH
+# define USE_MAC_IN_FLASH 0
+#else
+# define USE_MAC_IN_FLASH 1
+#endif
bool valid_mac = false;
- /* the MAC is stored in OTP memory page 0xDF */
- uint32_t ret;
- uint64_t otp_mac;
-
- ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
- if (!(ret & OTP_MASTER_ERROR)) {
- uchar *otp_mac_p = (uchar *)&otp_mac;
-
- for (ret = 0; ret < 6; ++ret)
- mac_addr[ret] = otp_mac_p[5 - ret];
-
- if (is_valid_ether_addr(mac_addr))
+ if (USE_MAC_IN_FLASH) {
+ /* we cram the MAC in the last flash sector */
+ uchar *board_mac_addr = (uchar *)0x203F0096;
+ if (is_valid_ether_addr(board_mac_addr)) {
+ memcpy(mac_addr, board_mac_addr, 6);
valid_mac = true;
+ }
}
if (!valid_mac) {
@@ -66,5 +65,11 @@
board_init_enetaddr(enetaddr);
#endif
+#ifndef CONFIG_SYS_NO_FLASH
+ /* we use the last sector for the MAC address / POST LDR */
+ extern flash_info_t flash_info[];
+ flash_protect(FLAG_PROTECT_SET, 0x203F0000, 0x203FFFFF, &flash_info[0]);
+#endif
+
return 0;
}