From 4f55bd1c0ba12a2309bef7db33b0d4802e927647 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Mon, 10 Apr 2017 19:44:33 +0800 Subject: [PATCH] net: fec: do not access reserved register for i.MX6ULL The MIB RAM and FIFO receive start register does not exist on i.MX6ULL. Accessing these register will cause enet not work well or cause system report fault. Signed-off-by: Peng Fan Cc: Joe Hershberger --- drivers/net/fec_mxc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index 910879ba3e..ac7afb5b35 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -563,7 +563,7 @@ static int fec_init(struct eth_device *dev, bd_t *bd) writel(0x00000000, &fec->eth->gaddr2); /* Do not access reserved register for i.MX6UL */ - if (!is_mx6ul()) { + if (!is_mx6ul() && !is_mx6ull()) { /* clear MIB RAM */ for (i = mib_ptr; i <= mib_ptr + 0xfc; i += 4) writel(0, i);