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Clean up the prom code / board detection (thanks Gabor), fix some warnings

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9136 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
florian
2007-10-05 11:39:32 +00:00
parent 36c22a7720
commit 3014c2fffa
5 changed files with 48 additions and 26 deletions
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52
target/linux/rb532/files/arch/mips/rb500/prom.c
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@@ -1,5 +1,5 @@
/*
* prom.c
* prom.c
**********************************************************************
* P . Sadik Oct 10, 2003
*
@@ -42,12 +42,9 @@ extern void __init setup_serial_port(void);
unsigned int idt_cpu_freq = 132000000;
EXPORT_SYMBOL(idt_cpu_freq);
char board_type[11];
EXPORT_SYMBOL(board_type);
unsigned int gpio_bootup_state = 0;
EXPORT_SYMBOL(gpio_bootup_state);
char mips_mac_address[18] = "08:00:06:05:40:01";
EXPORT_SYMBOL(mips_mac_address);
@@ -67,9 +64,6 @@ EXPORT_SYMBOL(soft_reboot);
extern int remote_debug;
#endif
extern unsigned long mips_machgroup;
extern unsigned long mips_machtype;
#define FREQ_TAG "HZ="
#define GPIO_TAG "gpio="
#define KMAC_TAG "kmac="
@@ -78,6 +72,9 @@ extern unsigned long mips_machtype;
#define IGNORE_CMDLINE_MEM 1
#define DEBUG_DDR
#define BOARD_RB532 "500"
#define BOARD_RB532A "500r5"
void parse_soft_settings(unsigned *ptr, unsigned size);
void parse_hard_settings(unsigned *ptr, unsigned size);
@@ -87,7 +84,7 @@ void __init prom_init(void)
{
DDR_t ddr = (DDR_t) DDR_VirtualAddress; /* define the pointer to the DDR registers */
phys_t memsize = 0-ddr->ddrmask;
/* this should be the very first message, even before serial is properly initialized */
prom_setup_cmdline();
setup_serial_port();
@@ -108,6 +105,17 @@ void __init prom_free_prom_memory(void)
/* No prom memory to free */
}
static inline int match_tag(char *arg, const char *tag)
{
return (strncmp(arg, tag, strlen(tag)) == 0);
}
static inline unsigned long tag2ul(char *arg, const char *tag)
{
char *num = arg+strlen(tag);
return simple_strtoul(num, 0, 10);
}
extern char _image_cmdline;
void __init prom_setup_cmdline(void){
char cmd_line[CL_SIZE];
@@ -115,32 +123,36 @@ void __init prom_setup_cmdline(void){
int prom_argc;
char **prom_argv, **prom_envp;
int i;
prom_argc = fw_arg0;
prom_argv = (char **) fw_arg1;
prom_envp = (char **) fw_arg2;
cp=cmd_line;
/* Note: it is common that parameters start at argv[1] and not argv[0],
however, our elf loader starts at [0] */
for(i=0;i<prom_argc;i++){
if (strncmp(prom_argv[i], FREQ_TAG, sizeof(FREQ_TAG) - 1) == 0) {
idt_cpu_freq = simple_strtoul(prom_argv[i] + sizeof(FREQ_TAG) - 1, 0, 10);
if (match_tag(prom_argv[i], FREQ_TAG)) {
idt_cpu_freq = tag2ul(prom_argv[i], FREQ_TAG);
continue;
}
#ifdef IGNORE_CMDLINE_MEM
/* parses out the "mem=xx" arg */
if (strncmp(prom_argv[i], MEM_TAG, sizeof(MEM_TAG) - 1) == 0) {
if (match_tag(prom_argv[i], MEM_TAG)) {
continue;
}
#endif
if (i>0) *(cp++) = ' ';
if (strncmp(prom_argv[i], BOARD_TAG, sizeof(BOARD_TAG) - 1) == 0) {
strcpy(board_type, prom_argv[i] + sizeof(BOARD_TAG) -1);
if (match_tag(prom_argv[i], BOARD_TAG)) {
char *board = prom_argv[i] + strlen(BOARD_TAG);
if (match_tag(board, BOARD_RB532A))
mips_machtype = MACH_MIKROTIK_RB532A;
else
mips_machtype = MACH_MIKROTIK_RB532;
}
if (strncmp(prom_argv[i], GPIO_TAG, sizeof(GPIO_TAG) - 1) == 0) {
gpio_bootup_state = simple_strtoul(prom_argv[i] + sizeof(GPIO_TAG) - 1, 0, 10);
if (match_tag(prom_argv[i], GPIO_TAG)) {
gpio_bootup_state = tag2ul(prom_argv[i], GPIO_TAG);
}
strcpy(cp,prom_argv[i]);
cp+=strlen(prom_argv[i]);
@@ -148,7 +160,7 @@ void __init prom_setup_cmdline(void){
*(cp++) = ' ';
strcpy(cp,(&_image_cmdline + 8));
cp += strlen(&_image_cmdline);
i=strlen(arcs_cmdline);
if (i>0){
*(cp++) = ' ';
@@ -160,7 +172,7 @@ void __init prom_setup_cmdline(void){
else
strcpy(cp,GPIO_INIT_BUTTON);
cmd_line[CL_SIZE-1] = '\0';
strcpy(arcs_cmdline,cmd_line);
}