Eric Lee / smarc-uboot

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Commit 5fb09cab9bb3cc4cef02239299d02cec666396ab

Authored by Peng Fan
1 parent 3c5628ccf4
Exists in smarc-rel_imx_4.1.15_2.0.0_ga

MLK-12766 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.

Reported-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>

Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff

drivers/net/fec_mxc.c
Diff comments   View file @ 5fb09ca
... ... @@ -568,7 +568,7 @@
568 568  
569 569  
570 570 /* Do not access reserved register for i.MX6UL */
571   - if (!is_cpu_type(MXC_CPU_MX6UL)) {
  571 + if (!is_cpu_type(MXC_CPU_MX6UL) && !is_cpu_type(MXC_CPU_MX6ULL)) {
572 572 /* clear MIB RAM */
573 573 for (i = mib_ptr; i <= mib_ptr + 0xfc; i += 4)
574 574 writel(0, i);