be322768f0
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
/*
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* (C) Copyright 2013 Teresa Gámez, Phytec Messtechnik GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <bootsource.h>
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#include <envfs.h>
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#include <init.h>
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#include <io.h>
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#include <fs.h>
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#include <malloc.h>
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#include <linux/stat.h>
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static char *omap_bootmmc_dev;
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void omap_set_bootmmc_devname(char *devname)
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{
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omap_bootmmc_dev = devname;
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}
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const char *omap_get_bootmmc_devname(void)
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{
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return omap_bootmmc_dev;
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}
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#if defined(CONFIG_DEFAULT_ENVIRONMENT)
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static int omap_env_init(void)
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{
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struct stat s;
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char *diskdev, *partname;
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int ret;
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if (bootsource_get() != BOOTSOURCE_MMC)
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return 0;
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if (omap_bootmmc_dev)
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diskdev = omap_bootmmc_dev;
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else
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diskdev = "disk0";
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device_detect_by_name(diskdev);
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partname = asprintf("/dev/%s.0", diskdev);
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ret = stat(partname, &s);
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free(partname);
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if (ret) {
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printf("no %s. using default env\n", diskdev);
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return 0;
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}
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mkdir("/boot", 0666);
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ret = mount(diskdev, "fat", "/boot");
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if (ret) {
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printf("failed to mount %s\n", diskdev);
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return 0;
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}
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if (IS_ENABLED(CONFIG_OMAP_BUILD_IFT))
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default_environment_path = "/dev/defaultenv";
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else
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default_environment_path = "/boot/barebox.env";
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return 0;
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}
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late_initcall(omap_env_init);
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#endif
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