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Implement GPIO changing with SPL commands.

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This commit is contained in:
Peter Zotov 2010-12-04 07:01:21 +03:00
parent 4f6670e5af
commit 8c36acee57
2 changed files with 41 additions and 0 deletions
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4
ingenic.h
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@ -38,6 +38,10 @@ int ingenic_loadstage(void *hndl, int id, const char *filename);
#define INGENIC_STAGE1 1
#define INGENIC_STAGE2 2
#define SPL_DEBUG_MEMTEST "1"
#define SPL_DEBUG_GPIO_SET "2"
#define SPL_DEBUG_GPIO_CLEAR "3"
#define STAGE1_BASE 0x2000
#define STAGE2_CODESIZE 0x400000
#define SDRAM_BASE 0x80000000

37
spl_cmdset.c
View File

@ -19,16 +19,19 @@
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "shell.h"
#include "config.h"
#include "ingenic.h"
static int spl_memtest(int argc, char *argv[]);
static int spl_gpio(int argc, char *argv[]);
static int spl_boot(int argc, char *argv[]);
const shell_command_t spl_cmdset[] = {
{ "memtest", "[BASE <SIZE>] - SDRAM test", spl_memtest },
{ "gpio", "<PIN> <STATE> - Set GPIO #PIN to STATE 0 or 1", spl_gpio },
{ "boot", " - Load stage2 USB bootloader", spl_boot },
{ NULL, NULL, NULL }
};
@ -51,6 +54,40 @@ static int spl_memtest(int argc, char *argv[]) {
return spl_load_stage1(); // TODO
}
static int spl_gpio(int argc, char *argv[]) {
if(argc != 3 || (strcmp(argv[2], "0") && strcmp(argv[2], "1"))) {
printf("Usage: %s <PIN> <STATE>\n", argv[0]);
printf(" STATE := 0 | 1\n");
return -1;
}
char *old_debugops = strdup(cfg_getenv("DEBUGOPS")),
*old_pinnum = strdup(cfg_getenv("PINNUM"));
cfg_setenv("DEBUGOPS", (!strcmp(argv[2], "1")) ?
SPL_DEBUG_GPIO_SET : SPL_DEBUG_GPIO_CLEAR);
cfg_setenv("PINNUM", argv[1]);
int ret = 0;
ret = shell_execute("rebuildcfg");
if(ret == -1)
goto finally;
ret = spl_load_stage1();
finally:
cfg_setenv("DEBUGOPS", old_debugops);
cfg_setenv("PINNUM", old_pinnum);
free(old_debugops);
free(old_pinnum);
return ret;
}
static int spl_boot(int argc, char *argv[]) {
if(argc != 1) {
printf("Usage: %s\n", argv[0]);