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/*
* (C) Copyright 2013 Teresa Gámez, Phytec Messtechnik GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <common.h>
#include <bootsource.h>
#include <envfs.h>
#include <boot.h>
#include <init.h>
#include <io.h>
#include <fs.h>
#include <malloc.h>
#include <linux/stat.h>
#include <mach/generic.h>
#include <mach/am33xx-silicon.h>
#include <mach/omap3-silicon.h>
#include <mach/omap4-silicon.h>
static void *omap_sram_start(void)
{
if (cpu_is_am33xx())
return (void *)AM33XX_SRAM0_START;
if (cpu_is_omap34xx())
return (void *)OMAP3_SRAM_BASE;
if (cpu_is_omap4xxx())
return (void *)OMAP44XX_SRAM_BASE;
}
void __noreturn omap_start_barebox(void *barebox)
{
int (*func)(void *) = barebox;
uint32_t *arg;
void *sramadr = omap_sram_start();
arg = (uint32_t *)&omap_bootinfo;
memcpy(sramadr, &omap_bootinfo, sizeof(uint32_t) * 3);
shutdown_barebox();
func(sramadr);
hang();
}
#ifdef CONFIG_BOOTM
static int do_bootm_omap_barebox(struct image_data *data)
{
void (*barebox)(uint32_t);
barebox = read_file(data->os_file, NULL);
if (!barebox)
return -EINVAL;
omap_start_barebox(barebox);
}
static struct image_handler omap_barebox_handler = {
.name = "OMAP barebox",
.bootm = do_bootm_omap_barebox,
.filetype = filetype_arm_barebox,
};
static int omap_bootm_barebox(void)
{
return register_image_handler(&omap_barebox_handler);
}
device_initcall(omap_bootm_barebox);
#endif
const static char *omap_bootmmc_dev;
void omap_set_bootmmc_devname(const char *devname)
{
omap_bootmmc_dev = devname;
}
const char *omap_get_bootmmc_devname(void)
{
return omap_bootmmc_dev;
}
#if defined(CONFIG_DEFAULT_ENVIRONMENT)
static int omap_env_init(void)
{
struct stat s;
char *partname;
const char *diskdev;
int ret;
if (bootsource_get() != BOOTSOURCE_MMC)
return 0;
if (omap_bootmmc_dev)
diskdev = omap_bootmmc_dev;
else
diskdev = "disk0";
device_detect_by_name(diskdev);
partname = asprintf("/dev/%s.0", diskdev);
ret = stat(partname, &s);
free(partname);
if (ret) {
printf("no %s. using default env\n", diskdev);
return 0;
}
mkdir("/boot", 0666);
ret = mount(diskdev, "fat", "/boot");
if (ret) {
printf("failed to mount %s\n", diskdev);
return 0;
}
if (IS_ENABLED(CONFIG_OMAP_BUILD_IFT))
default_environment_path = "/dev/defaultenv";
else
default_environment_path = "/boot/barebox.env";
return 0;
}
late_initcall(omap_env_init);
#endif
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