FEC driver requires imx_get_mac_from_fuse(). Add it in preparation
for ENETx support.
Signed-off-by: Anatolij Gustschin <ag...@denx.de>
Cc: Stefano Babic <sba...@denx.de>
---
arch/arm/mach-imx/imx8/cpu.c | 38 ++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c
index d80b4b175d..da34a94a23 100644
--- a/arch/arm/mach-imx/imx8/cpu.c
+++ b/arch/arm/mach-imx/imx8/cpu.c
@@ -543,3 +543,41 @@ u64 get_page_table_size(void)
return size;
}
#endif
+
+#define FUSE_MAC0_WORD0 708
+#define FUSE_MAC0_WORD1 709
+#define FUSE_MAC1_WORD0 710
+#define FUSE_MAC1_WORD1 711
+
+void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
+{
+ u32 word[2], val[2] = {};
+ int i, ret;
+
+ if (dev_id == 0) {
+ word[0] = FUSE_MAC0_WORD0;
+ word[1] = FUSE_MAC0_WORD1;
+ } else {
+ word[0] = FUSE_MAC1_WORD0;
+ word[1] = FUSE_MAC1_WORD1;
+ }
+
+ for (i = 0; i < 2; i++) {
+ ret = sc_misc_otp_fuse_read(-1, word[i], &val[i]);
+ if (ret < 0)
+ goto err;
+ }
+
+ mac[0] = val[0];
+ mac[1] = val[0] >> 8;
+ mac[2] = val[0] >> 16;
+ mac[3] = val[0] >> 24;
+ mac[4] = val[1];
+ mac[5] = val[1] >> 8;
+
+ debug("%s: MAC%d: %02x.%02x.%02x.%02x.%02x.%02x\n",
+ __func__, dev_id, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ return;
+err:
+ printf("%s: fuse %d, err: %d\n", __func__, word[i], ret);
+}
--
2.17.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
