* 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.
*/
#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;
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++;
--cp;
if (prom_argc > 1)
*cp = '\0';
-
}
-
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);