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[PATCH] mips/alchemy: define eth platform devices in the correct order

To: linux-mips@linux-mips.org
Subject: [PATCH] mips/alchemy: define eth platform devices in the correct order
From: Wolfgang Grandegger <wg@grandegger.com>
Date: Sat, 17 Jul 2010 16:38:48 +0200
Cc: Wolfgang Grandegger <wg@denx.de>
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
From: Wolfgang Grandegger <wg@denx.de>

Currently, the eth devices are probed in the inverse order, first
au1xxx_eth1_device and then au1xxx_eth0_device. On the GPR board,
this makes trouble:

  # ifconfig|grep HWaddr
  eth0      Link encap:Ethernet  HWaddr 00:50:C2:0C:30:01
  eth1      Link encap:Ethernet  HWaddr 66:22:01:80:38:10

A bogous ethernet hwaddr is assigned to the first device and
au1xxx_eth0_device is mapped to eth1, which even does not work
properly. With this patch, the problems are gone:

  # ifconfig|grep HWaddr
  eth0      Link encap:Ethernet  HWaddr 66:22:11:32:38:10
  eth1      Link encap:Ethernet  HWaddr 66:22:11:32:38:11

Signed-off-by: Wolfgang Grandegger <wg@denx.de>
---
 arch/mips/alchemy/common/platform.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/mips/alchemy/common/platform.c 
b/arch/mips/alchemy/common/platform.c
index 2580e77..f9e5622 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -435,20 +435,21 @@ static struct platform_device *au1xxx_platform_devices[] 
__initdata = {
 static int __init au1xxx_platform_init(void)
 {
        unsigned int uartclk = get_au1x00_uart_baud_base() * 16;
-       int i;
+       int err, i;
 
        /* Fill up uartclk. */
        for (i = 0; au1x00_uart_data[i].flags; i++)
                au1x00_uart_data[i].uartclk = uartclk;
 
+       err = platform_add_devices(au1xxx_platform_devices,
+                                  ARRAY_SIZE(au1xxx_platform_devices));
 #ifndef CONFIG_SOC_AU1100
        /* Register second MAC if enabled in pinfunc */
-       if (!(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2))
+       if (!err && !(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2))
                platform_device_register(&au1xxx_eth1_device);
 #endif
 
-       return platform_add_devices(au1xxx_platform_devices,
-                                   ARRAY_SIZE(au1xxx_platform_devices));
+       return err;
 }
 
 arch_initcall(au1xxx_platform_init);
-- 
1.6.2.5


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