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#include <linux/init.h>
#include <linux/module.h>
#include <linux/bootmem.h>
#include <linux/etherdevice.h>
#include <asm/bootinfo.h>
#include <ifxmips.h>
#include <ifxmips_prom.h>
/* for voice cpu (MIPS24K) */
unsigned int *prom_cp1_base;
unsigned int prom_cp1_size;
/* for Multithreading (APRP) on MIPS34K */
unsigned long physical_memsize;
void
prom_free_prom_memory(void)
{
}
unsigned int*
prom_get_cp1_base(void)
{
return prom_cp1_base;
}
EXPORT_SYMBOL(prom_get_cp1_base);
unsigned int
prom_get_cp1_size(void)
{
/* return size im MB */
return prom_cp1_size>>20;
}
EXPORT_SYMBOL(prom_get_cp1_size);
extern unsigned char ifxmips_ethaddr[6];
int cmdline_mac = 0;
static int __init
ifxmips_set_ethaddr(char *str)
{
#define IS_HEX(x) \
(((x >= '0' && x <= '9') || (x >= 'a' && x <= 'f') \
|| (x >= 'A' && x <= 'F')) ? (1) : (0))
int i;
str = strchr(str, '=');
if (!str)
goto out;
str++;
if (strlen(str) != 17)
goto out;
for (i = 0; i < 6; i++) {
if (!IS_HEX(str[3 * i]) || !IS_HEX(str[(3 * i) + 1]))
goto out;
if ((i != 5) && (str[(3 * i) + 2] != ':'))
goto out;
ifxmips_ethaddr[i] = simple_strtoul(&str[3 * i], NULL, 16);
}
if (is_valid_ether_addr(ifxmips_ethaddr))
cmdline_mac = 1;
out:
return 1;
}
__setup("ethaddr", ifxmips_set_ethaddr);
void __init
prom_init(void)
{
int argc = fw_arg0;
char **argv = (char **) fw_arg1;
char **envp = (char **) fw_arg2;
int memsize = 16; /* assume 16M as default */
int i;
if (argc)
{
argv = (char **)KSEG1ADDR((unsigned long)argv);
arcs_cmdline[0] = '\0';
for (i = 1; i < argc; i++)
{
char *a = (char *)KSEG1ADDR(argv[i]);
if (!argv[i])
continue;
/* for voice cpu on Twinpass/Danube */
if (cpu_data[0].cputype == CPU_24K)
if (!strncmp(a, "cp1_size=", 9))
{
prom_cp1_size = memparse(a + 9, &a);
continue;
}
if (strlen(arcs_cmdline) + strlen(a + 1) >= sizeof(arcs_cmdline))
{
early_printf("cmdline overflow, skipping: %s\n", a);
break;
}
strcat(arcs_cmdline, a);
strcat(arcs_cmdline, " ");
}
if (!*arcs_cmdline)
strcpy(&(arcs_cmdline[0]),
"console=ttyS0,115200 rootfstype=squashfs,jffs2");
}
envp = (char **)KSEG1ADDR((unsigned long)envp);
while (*envp)
{
char *e = (char *)KSEG1ADDR(*envp);
if (!strncmp(e, "memsize=", 8))
{
e += 8;
memsize = simple_strtoul(e, NULL, 10);
}
envp++;
}
memsize *= 1024 * 1024;
/* only on Twinpass/Danube a second CPU is used for Voice */
if ((cpu_data[0].cputype == CPU_24K) && (prom_cp1_size))
{
memsize -= prom_cp1_size;
prom_cp1_base = (unsigned int *)KSEG1ADDR(memsize);
early_printf("Using %dMB Ram and reserving %dMB for cp1\n",
memsize>>20, prom_cp1_size>>20);
}
add_memory_region(0x00000000, memsize, BOOT_MEM_RAM);
}
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