Merge branch 'master' of /home/cbou/linux-2.6

[pandora-kernel.git] / arch / mips / au1000 / common / prom.c

diff --git a/arch/mips/au1000/common/prom.c b/arch/mips/au1000/common/prom.c
index a8637cd..18b310b 100644 (file)
--- 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);