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// SPDX-License-Identifier: GPL-2.0+
#include <common.h>
#include <linux/sizes.h>
#include <init.h>
#include <asm/memory.h>
#include <mach/bbu.h>
#include <bootsource.h>
#include <of.h>
static int of_fixup_regulator_supply_disable(struct device_node *root, void *path)
{
struct device_node *node;
struct property *prop;
node = of_find_node_by_path_from(root, path);
if (!node) {
pr_warn("fixup for %s failed: not found\n", (const char *)path);
return -ENOENT;
}
if (!of_property_read_bool(node, "regulator-always-on"))
return 0;
prop = of_find_property(node, "vin-supply", NULL);
if (prop)
of_delete_property(prop);
return 0;
}
static int mc1_device_init(void)
{
int flags;
if (!of_machine_is_compatible("lxa,stm32mp157c-mc1"))
return 0;
flags = bootsource_get_instance() == 0 ? BBU_HANDLER_FLAG_DEFAULT : 0;
stm32mp_bbu_mmc_register_handler("sd", "/dev/mmc0.ssbl", flags);
flags = bootsource_get_instance() == 1 ? BBU_HANDLER_FLAG_DEFAULT : 0;
stm32mp_bbu_mmc_register_handler("emmc", "/dev/mmc1.ssbl", flags);
if (bootsource_get_instance() == 0)
of_device_enable_path("/chosen/environment-sd");
else
of_device_enable_path("/chosen/environment-emmc");
barebox_set_hostname("lxa-mc1");
/* The regulator is powered by the PMIC, but is always on as far as
* software is concerned. Break the reference to the PMIC, so the OS
* doesn't need to defer SDMMC/Ethernet peripherals till after the PMIC
* is up.
*/
return of_register_fixup(of_fixup_regulator_supply_disable, "/regulator_3v3");
}
device_initcall(mc1_device_init);
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