MIPS: MTX-1: Make au1000_eth probe all PHY addresses

When au1000_eth probes the MII bus for PHY address, if we do not set
au1000_eth platform data's phy_search_highest_address, the MII probing
logic will exit early and will assume a valid PHY is found at address 0.
For MTX-1, the PHY is at address 31, and without this patch, the link
detection/speed/duplex would not work correctly.

CC: stable@kernel.org
Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2111/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/mips/alchemy/mtx-1/platform.c b/arch/mips/alchemy/mtx-1/platform.c
index e30e42add697..956f946218c5 100644
--- a/arch/mips/alchemy/mtx-1/platform.c
+++ b/arch/mips/alchemy/mtx-1/platform.c
@@ -28,6 +28,8 @@
 #include <linux/mtd/physmap.h>
 #include <mtd/mtd-abi.h>
 
+#include <asm/mach-au1x00/au1xxx_eth.h>
+
 static struct gpio_keys_button mtx1_gpio_button[] = {
         {
                 .gpio = 207,
@@ -140,10 +142,17 @@ static struct __initdata platform_device * mtx1_devs[] = {
         &mtx1_mtd,
 };
 
+static struct au1000_eth_platform_data mtx1_au1000_eth0_pdata = {
+        .phy_search_highest_addr        = 1,
+        .phy1_search_mac0               = 1,
+};
+
 static int __init mtx1_register_devices(void)
 {
         int rc;
 
+        au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata);
+
         rc = gpio_request(mtx1_gpio_button[0].gpio,
                                         mtx1_gpio_button[0].desc);
         if (rc < 0) {