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bios: remove rescue

This commit is contained in:
Sebastien Bourdeauducq 2013-05-28 16:15:30 +02:00
parent 701aac2513
commit b6448ba5fc
4 changed files with 13 additions and 29 deletions
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3
software/bios/Makefile
View File

@ -15,7 +15,6 @@ all: bios.bin
$(M2DIR)/tools/mkmmimg $@ write
bios.elf: linker.ld $(OBJECTS) libs
bios-rescue.elf: linker-rescue.ld $(OBJECTS) libs
%.elf:
$(LD) $(LDFLAGS) -T $< -N -o $@ $(OBJECTS) \
@ -43,6 +42,6 @@ flash: bios.bin
m1nor bios.bin
clean:
$(RM) $(OBJECTS) $(OBJECTS:.o=.d) bios.elf bios.bin bios-rescue.elf bios-rescue.bin .*~ *~
$(RM) $(OBJECTS) $(OBJECTS:.o=.d) bios.elf bios.bin .*~ *~
.PHONY: all main.o clean libs flash

2
software/bios/boot-helper.S
View File

@ -7,4 +7,4 @@ boot_helper:
nop
nop
nop
call r5
call r4

18
software/bios/boot.c
View File

@ -14,16 +14,15 @@
#include <net/tftp.h>
#include "boot.h"
extern int rescue;
extern void boot_helper(unsigned int r1, unsigned int r2, unsigned int r3, unsigned int r4, unsigned int addr);
extern void boot_helper(unsigned int r1, unsigned int r2, unsigned int r3, unsigned int addr);
static void __attribute__((noreturn)) boot(unsigned int r1, unsigned int r2, unsigned int r3, unsigned int r4, unsigned int addr)
static void __attribute__((noreturn)) boot(unsigned int r1, unsigned int r2, unsigned int r3, unsigned int addr)
{
printf("Executing booted program.\n");
uart_sync();
irq_setmask(0);
irq_setie(0);
boot_helper(r1, r2, r3, r4, addr);
boot_helper(r1, r2, r3, addr);
while(1);
}
@ -137,7 +136,7 @@ void serialboot(void)
|((unsigned int)frame.payload[2] << 8)
|((unsigned int)frame.payload[3] << 0);
uart_write(SFL_ACK_SUCCESS);
boot(cmdline_adr, initrdstart_adr, initrdend_adr, rescue, addr);
boot(cmdline_adr, initrdstart_adr, initrdend_adr, addr);
break;
}
case SFL_CMD_CMDLINE:
@ -234,7 +233,7 @@ void netboot(void)
} else
initrdend_adr = initrdstart_adr + size;
boot(cmdline_adr, initrdstart_adr, initrdend_adr, rescue, SDRAM_BASE);
boot(cmdline_adr, initrdstart_adr, initrdend_adr, SDRAM_BASE);
}
void flashboot(void)
@ -245,10 +244,7 @@ void flashboot(void)
unsigned int got_crc;
printf("Booting from flash...\n");
if(rescue)
flashbase = (unsigned int *)FLASH_OFFSET_RESCUE_APP;
else
flashbase = (unsigned int *)FLASH_OFFSET_REGULAR_APP;
flashbase = (unsigned int *)FLASH_OFFSET_REGULAR_APP;
length = *flashbase++;
crc = *flashbase++;
if((length < 32) || (length > 4*1024*1024)) {
@ -263,5 +259,5 @@ void flashboot(void)
printf("CRC failed (expected %08x, got %08x)\n", crc, got_crc);
return;
}
boot(0, 0, 0, rescue, SDRAM_BASE);
boot(0, 0, 0, SDRAM_BASE);
}

19
software/bios/main.c
View File

@ -375,7 +375,6 @@ static void do_command(char *c)
printf("Command not found\n");
}
int rescue;
extern unsigned int _edata;
static void crcbios(void)
@ -391,7 +390,7 @@ static void crcbios(void)
* We also use the address of _edata to know the length
* of our code.
*/
offset_bios = rescue ? FLASH_OFFSET_RESCUE_BIOS : FLASH_OFFSET_REGULAR_BIOS;
offset_bios = FLASH_OFFSET_REGULAR_BIOS;
expected_crc = _edata;
length = (unsigned int)&_edata - offset_bios;
actual_crc = crc32((unsigned char *)offset_bios, length);
@ -488,15 +487,9 @@ static int test_user_abort(void)
static void boot_sequence(void)
{
if(test_user_abort()) {
if(rescue) {
serialboot();
netboot();
flashboot();
} else {
flashboot();
serialboot();
netboot();
}
flashboot();
serialboot();
netboot();
printf("No boot medium found\n");
}
}
@ -506,15 +499,11 @@ int main(int i, char **c)
char buffer[64];
int ddr_ok;
rescue = !((unsigned int)main > FLASH_OFFSET_REGULAR_BIOS);
irq_setmask(0);
irq_setie(1);
uart_init();
puts(banner);
crcbios();
if(rescue)
printf("Rescue mode\n");
id_print();
ethreset();
print_mac();