From 8f06c9e83a8719992207ba6a3288871cf4850197 Mon Sep 17 00:00:00 2001 From: Ye Li Date: Thu, 27 Apr 2017 13:51:45 -0500 Subject: [PATCH] MLK-14938-16 net: fec: do not access reserved register for i.MX8 The MIB RAM and FIFO receive start register does not exist on i.MX8. Accessing these register will cause SERROR in kernel. Signed-off-by: Ye Li (cherry picked from commit 2a47ebbccb95e8482360813d6dff5288429f1248) (cherry picked from commit fd99a9f057097a64034cd7b419fd983f487791e4) --- drivers/net/fec_mxc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index 84f010d805..1d064f79f7 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -603,8 +603,8 @@ static int fec_init(struct eth_device *dev, bd_t *bd) writel(0x00000000, &fec->eth->gaddr1); writel(0x00000000, &fec->eth->gaddr2); - /* Do not access reserved register */ - if (!is_mx6ul() && !is_mx6ull() && !is_imx8m()) { + /* Do not access reserved register for i.MX6UL/6ULL/i.MX8/i.MX8M */ + if (!is_mx6ul() && !is_mx6ull() && !is_imx8() && !is_imx8m()) { /* clear MIB RAM */ for (i = mib_ptr; i <= mib_ptr + 0xfc; i += 4) writel(0, i); -- 2.17.1