+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
*
* Derived from linux/drivers/power/reset/syscon-reboot.c:
* Copyright (C) 2013, Applied Micro Circuits Corporation
* Author: Feng Kan <fkan@apm.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <regmap.h>
#include <sysreset.h>
#include <syscon.h>
-
-DECLARE_GLOBAL_DATA_PTR;
+#include <linux/err.h>
struct syscon_reboot_priv {
struct regmap *regmap;
static int syscon_reboot_request(struct udevice *dev, enum sysreset_t type)
{
struct syscon_reboot_priv *priv = dev_get_priv(dev);
+ ulong driver_data = dev_get_driver_data(dev);
+
+ if (type != driver_data)
+ return -EPROTONOSUPPORT;
regmap_write(priv->regmap, priv->offset, priv->mask);
int syscon_reboot_probe(struct udevice *dev)
{
- struct udevice *syscon;
struct syscon_reboot_priv *priv = dev_get_priv(dev);
- int err;
-
- err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
- "regmap", &syscon);
- if (err) {
- pr_err("unable to find syscon device\n");
- return err;
- }
- priv->regmap = syscon_get_regmap(syscon);
- if (!priv->regmap) {
+ priv->regmap = syscon_regmap_lookup_by_phandle(dev, "regmap");
+ if (IS_ERR(priv->regmap)) {
pr_err("unable to find regmap\n");
return -ENODEV;
}
- priv->offset = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
- "offset", 0);
- priv->mask = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
- "mask", 0);
+ priv->offset = dev_read_u32_default(dev, "offset", 0);
+ priv->mask = dev_read_u32_default(dev, "mask", 0);
return 0;
}
static const struct udevice_id syscon_reboot_ids[] = {
- { .compatible = "syscon-reboot" },
+ { .compatible = "syscon-reboot", .data = SYSRESET_COLD },
+ { .compatible = "syscon-poweroff", .data = SYSRESET_POWER_OFF },
{ /* sentinel */ }
};