[ar71xx] parse mac address on RouterBOARDs

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11910 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 61 insertions, 24 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/platform.c b/target/linux/ar71xx/files/arch/mips/ar71xx/platform.c
index 9c91fa3bb..07bec246b 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/platform.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/platform.c
@@ -22,6 +22,8 @@
 #include <asm/mach-ar71xx/ar71xx.h>
 #include <asm/mach-ar71xx/platform.h>
 
+static u8 ar71xx_mac_base[ETH_ALEN] __initdata;
+
 /*
  * OHCI (USB full speed host controller)
  */
@@ -232,6 +234,7 @@ void __init ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
 		default:
 			BUG();
 		}
+		memcpy(ar71xx_eth0_data.mac_addr, ar71xx_mac_base, ETH_ALEN);
 		ar71xx_eth0_data.phy_if_mode = phy_if_mode;
 		ar71xx_eth0_data.phy_mask = phy_mask;
 		pdev = &ar71xx_eth0_device;
@@ -247,6 +250,8 @@ void __init ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
 		default:
 			BUG();
 		}
+		memcpy(ar71xx_eth1_data.mac_addr, ar71xx_mac_base, ETH_ALEN);
+		ar71xx_eth1_data.mac_addr[5] += id;
 		ar71xx_eth1_data.phy_if_mode = phy_if_mode;
 		ar71xx_eth1_data.phy_mask = phy_mask;
 		pdev = &ar71xx_eth1_device;
@@ -286,6 +291,21 @@ void __init ar71xx_add_device_spi(struct ar71xx_spi_platform_data *pdata,
 	platform_device_register(&ar71xx_spi_device);
 }
 
+void __init ar71xx_set_mac_base(char *mac_str)
+{
+	u8 tmp[ETH_ALEN];
+	int t;
+
+	t = sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
+			&tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
+
+	if (t == ETH_ALEN)
+		memcpy(ar71xx_mac_base, tmp, ETH_ALEN);
+	else
+		printk(KERN_DEBUG "AR71XX: failed to parse mac address "
+				"\"%s\"\n", mac_str);
+}
+
 static int __init ar71xx_machine_setup(void)
 {
 	ar71xx_print_cmdline();
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c b/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
index e21464fc1..69425d50c 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
@@ -18,15 +18,16 @@
 #include <asm/addrspace.h>
 
 #include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/platform.h>
 
 struct board_rec {
 	char		*name;
 	unsigned long	mach_type;
 };
 
-static int prom_argc __initdata;
-static char **prom_argv __initdata;
-static char **prom_envp __initdata;
+static int ar71xx_prom_argc __initdata;
+static char **ar71xx_prom_argv __initdata;
+static char **ar71xx_prom_envp __initdata;
 
 static struct board_rec boards[] __initdata = {
 	{
@@ -41,30 +42,37 @@ static struct board_rec boards[] __initdata = {
 	}
 };
 
-char *(*prom_getenv)(const char *envname) __initdata;
-
-static __init char *dummy_getenv(const char *envname)
+static __init void routerboot_printargs(void)
 {
-	return NULL;
+	int i;
+
+	for (i = 0; i < ar71xx_prom_argc; i++)
+		printk(KERN_DEBUG "prom: routerboot envp[%d]: %s\n",
+				i, ar71xx_prom_argv[i]);
 }
 
-static void __init routerboot_printargs(void)
+static __init char *routerboot_getenv(const char *envname)
 {
+	int len = strlen(envname);
 	int i;
 
-	for (i = 0; i < prom_argc; i++)
-		printk(KERN_DEBUG "prom: routerboot envp[%d]: %s\n",
-				i, prom_envp[i]);
+	for (i = 0; i < ar71xx_prom_argc; i++) {
+		char *env = ar71xx_prom_argv[i];
+		if (strncmp(envname, env, len) == 0 && (env)[len] == '=')
+			return env + len + 1;
+	}
+
+	return NULL;
 }
 
-static __init char *routerboot_getenv(const char *envname)
+static __init char *redboot_getenv(const char *envname)
 {
+	int len = strlen(envname);
 	char **env;
-	int i = strlen(envname);
 
-	for (env = prom_envp; *env != NULL; env++)
-		if (strncmp(envname, *env, i) == 0 && (*env)[i] == '=')
-			return *env + i + 1;
+	for (env = ar71xx_prom_envp; *env != NULL; env++)
+		if (strncmp(envname, *env, len) == 0 && (*env)[len] == '=')
+			return *env + len + 1;
 
 	return NULL;
 }
@@ -82,28 +90,37 @@ static __init unsigned long find_board_byname(char *name)
 
 void __init prom_init(void)
 {
-	char *board;
+	char *board = NULL;
+	char *mac = NULL;
 
 	printk(KERN_DEBUG "prom: fw_arg0=%08x, fw_arg1=%08x, "
 			"fw_arg2=%08x, fw_arg3=%08x\n",
 			(unsigned int)fw_arg0, (unsigned int)fw_arg1,
 			(unsigned int)fw_arg2, (unsigned int)fw_arg3);
 
-	prom_getenv = dummy_getenv;
-
-	if ((fw_arg0 == 7) && (fw_arg2 == 0)) {
-		prom_argc = fw_arg0;
-		prom_envp = (char **)fw_arg1;
-		prom_getenv = routerboot_getenv;
+	if ((fw_arg0 == 7) && (fw_arg2 == 0) && (fw_arg3 == 0)) {
+		 /* assume RouterBOOT */
+		ar71xx_prom_argc = fw_arg0;
+		ar71xx_prom_argv = (char **)fw_arg1;
 		routerboot_printargs();
+		board = routerboot_getenv("board");
+		mac = routerboot_getenv("kmac");
+	} else {
+		/* assume Redboot */
+		ar71xx_prom_argc = fw_arg0;
+		ar71xx_prom_argv = (char **)fw_arg1;
+		ar71xx_prom_envp = (char **)fw_arg2;
+		mac = redboot_getenv("ethaddr");
 	}
 
-	board = prom_getenv("board");
 	if (board)
 		mips_machtype = find_board_byname(board);
 	else
 		mips_machtype = MACH_AR71XX_GENERIC;
 
+	if (mac)
+		ar71xx_set_mac_base(mac);
+
 	ar71xx_print_cmdline();
 }