forked from Minki/linux
0be2abbcee
Remove old YAMON prom code and use common firmware library code. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/traps.h>
|
|
#include <asm/mips-boards/generic.h>
|
|
#include <asm/mips-boards/prom.h>
|
|
#include <asm/fw/fw.h>
|
|
|
|
extern char except_vec_nmi;
|
|
extern char except_vec_ejtag_debug;
|
|
|
|
#ifdef CONFIG_SERIAL_8250_CONSOLE
|
|
static void __init console_config(void)
|
|
{
|
|
char console_string[40];
|
|
int baud = 0;
|
|
char parity = '\0', bits = '\0', flow = '\0';
|
|
char *s;
|
|
|
|
if ((strstr(fw_getcmdline(), "console=")) == NULL) {
|
|
s = fw_getenv("modetty0");
|
|
if (s) {
|
|
while (*s >= '0' && *s <= '9')
|
|
baud = baud*10 + *s++ - '0';
|
|
if (*s == ',')
|
|
s++;
|
|
if (*s)
|
|
parity = *s++;
|
|
if (*s == ',')
|
|
s++;
|
|
if (*s)
|
|
bits = *s++;
|
|
if (*s == ',')
|
|
s++;
|
|
if (*s == 'h')
|
|
flow = 'r';
|
|
}
|
|
if (baud == 0)
|
|
baud = 38400;
|
|
if (parity != 'n' && parity != 'o' && parity != 'e')
|
|
parity = 'n';
|
|
if (bits != '7' && bits != '8')
|
|
bits = '8';
|
|
if (flow == '\0')
|
|
flow = 'r';
|
|
sprintf(console_string, " console=ttyS0,%d%c%c%c", baud,
|
|
parity, bits, flow);
|
|
strcat(fw_getcmdline(), console_string);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void __init mips_nmi_setup(void)
|
|
{
|
|
void *base;
|
|
|
|
base = cpu_has_veic ?
|
|
(void *)(CAC_BASE + 0xa80) :
|
|
(void *)(CAC_BASE + 0x380);
|
|
memcpy(base, &except_vec_nmi, 0x80);
|
|
flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
|
|
}
|
|
|
|
static void __init mips_ejtag_setup(void)
|
|
{
|
|
void *base;
|
|
|
|
base = cpu_has_veic ?
|
|
(void *)(CAC_BASE + 0xa00) :
|
|
(void *)(CAC_BASE + 0x300);
|
|
memcpy(base, &except_vec_ejtag_debug, 0x80);
|
|
flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
|
|
}
|
|
|
|
void __init prom_init(void)
|
|
{
|
|
board_nmi_handler_setup = mips_nmi_setup;
|
|
board_ejtag_handler_setup = mips_ejtag_setup;
|
|
|
|
fw_init_cmdline();
|
|
#ifdef CONFIG_EARLY_PRINTK
|
|
if ((strstr(fw_getcmdline(), "console=ttyS0")) != NULL)
|
|
fw_init_early_console(0);
|
|
else if ((strstr(fw_getcmdline(), "console=ttyS1")) != NULL)
|
|
fw_init_early_console(1);
|
|
#endif
|
|
#ifdef CONFIG_SERIAL_8250_CONSOLE
|
|
if ((strstr(fw_getcmdline(), "console=")) == NULL)
|
|
strcat(fw_getcmdline(), " console=ttyS0,38400n8r");
|
|
console_config();
|
|
#endif
|
|
}
|
|
|
|
void prom_free_prom_memory(void)
|
|
{
|
|
}
|