This adds a omap_set_bootmmc_devname function which can be used to specify the MMC boot device. In an xload configuration this is then used to load the next stage. In a regular build this is used to mount /boot. Also a device_detect_by_name is added to allow to disable probing for sd/mmc cards during startup. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
/*
|
|
* (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 <init.h>
|
|
#include <io.h>
|
|
#include <fs.h>
|
|
#include <malloc.h>
|
|
#include <linux/stat.h>
|
|
|
|
static char *omap_bootmmc_dev;
|
|
|
|
void omap_set_bootmmc_devname(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 *diskdev, *partname;
|
|
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
|