X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Fmips%2Fau1000%2Fcommon%2Fprom.c;h=18b310b475ca28195904f653637aedbd9bb57d7c;hb=9fec6060d9e48ed7db0dac0e16d0f0f0e615b7f6;hp=a8637cdb5b4b076a580e98ead98599e25bfa1650;hpb=edacf6bb7e7e1b75f2937966a50119439ff78ccb;p=pandora-kernel.git

diff --git a/arch/mips/au1000/common/prom.c b/arch/mips/au1000/common/prom.c
index a8637cdb5b4b..18b310b475ca 100644
--- a/arch/mips/au1000/common/prom.c
+++ b/arch/mips/au1000/common/prom.c
@@ -3,9 +3,8 @@
  * BRIEF MODULE DESCRIPTION
  *    PROM library initialisation code, supports YAMON and U-Boot.
  *
- * Copyright 2000, 2001, 2006 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- *         	ppopov@mvista.com or source@mvista.com
+ * Copyright 2000-2001, 2006, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com>
  *
  * This file was derived from Carsten Langgaard's
  * arch/mips/mips-boards/xx files.
@@ -35,24 +34,21 @@
  */
 
 #include <linux/module.h>
-#include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/string.h>
 
 #include <asm/bootinfo.h>
 
-/* #define DEBUG_CMDLINE */
-
-extern int prom_argc;
-extern char **prom_argv, **prom_envp;
-
+int prom_argc;
+char **prom_argv;
+char **prom_envp;
 
 char * __init_or_module prom_getcmdline(void)
 {
 	return &(arcs_cmdline[0]);
 }
 
-void  prom_init_cmdline(void)
+void prom_init_cmdline(void)
 {
 	char *cp;
 	int actr;
@@ -60,8 +56,8 @@ void  prom_init_cmdline(void)
 	actr = 1; /* Always ignore argv[0] */
 
 	cp = &(arcs_cmdline[0]);
-	while(actr < prom_argc) {
-	        strcpy(cp, prom_argv[actr]);
+	while (actr < prom_argc) {
+		strcpy(cp, prom_argv[actr]);
 		cp += strlen(prom_argv[actr]);
 		*cp++ = ' ';
 		actr++;
@@ -70,10 +66,8 @@ void  prom_init_cmdline(void)
 		--cp;
 	if (prom_argc > 1)
 		*cp = '\0';
-
 }
 
-
 char *prom_getenv(char *envname)
 {
 	/*
@@ -89,70 +83,64 @@ char *prom_getenv(char *envname)
 		if (yamon) {
 			if (strcmp(envname, *env++) == 0)
 				return *env;
-		} else {
-			if (strncmp(envname, *env, i) == 0 && (*env)[i] == '=')
-				return *env + i + 1;
-		}
+		} else if (strncmp(envname, *env, i) == 0 && (*env)[i] == '=')
+			return *env + i + 1;
 		env++;
 	}
+
 	return NULL;
 }
 
-inline unsigned char str2hexnum(unsigned char c)
+static inline unsigned char str2hexnum(unsigned char c)
 {
-	if(c >= '0' && c <= '9')
+	if (c >= '0' && c <= '9')
 		return c - '0';
-	if(c >= 'a' && c <= 'f')
+	if (c >= 'a' && c <= 'f')
 		return c - 'a' + 10;
-	if(c >= 'A' && c <= 'F')
+	if (c >= 'A' && c <= 'F')
 		return c - 'A' + 10;
+
 	return 0; /* foo */
 }
 
-inline void str2eaddr(unsigned char *ea, unsigned char *str)
+static inline void str2eaddr(unsigned char *ea, unsigned char *str)
 {
 	int i;
 
-	for(i = 0; i < 6; i++) {
+	for (i = 0; i < 6; i++) {
 		unsigned char num;
 
-		if((*str == '.') || (*str == ':'))
+		if ((*str == '.') || (*str == ':'))
 			str++;
-		num = str2hexnum(*str++) << 4;
-		num |= (str2hexnum(*str++));
+		num  = str2hexnum(*str++) << 4;
+		num |= str2hexnum(*str++);
 		ea[i] = num;
 	}
 }
 
-int get_ethernet_addr(char *ethernet_addr)
+int prom_get_ethernet_addr(char *ethernet_addr)
 {
-        char *ethaddr_str;
+	char *ethaddr_str;
+	char *argptr;
 
-        ethaddr_str = prom_getenv("ethaddr");
+	/* Check the environment variables first */
+	ethaddr_str = prom_getenv("ethaddr");
 	if (!ethaddr_str) {
-	        printk("ethaddr not set in boot prom\n");
-		return -1;
-	}
-	str2eaddr(ethernet_addr, ethaddr_str);
-
-#if 0
-	{
-		int i;
+		/* Check command line */
+		argptr = prom_getcmdline();
+		ethaddr_str = strstr(argptr, "ethaddr=");
+		if (!ethaddr_str)
+			return -1;
 
-	printk("get_ethernet_addr: ");
-	for (i=0; i<5; i++)
-		printk("%02x:", (unsigned char)*(ethernet_addr+i));
-	printk("%02x\n", *(ethernet_addr+i));
+		ethaddr_str += strlen("ethaddr=");
 	}
-#endif
+
+	str2eaddr(ethernet_addr, ethaddr_str);
 
 	return 0;
 }
+EXPORT_SYMBOL(prom_get_ethernet_addr);
 
 void __init prom_free_prom_memory(void)
 {
 }
-
-EXPORT_SYMBOL(prom_getcmdline);
-EXPORT_SYMBOL(get_ethernet_addr);
-EXPORT_SYMBOL(str2eaddr);