u-boot/drivers/reboot-mode/reboot-mode-uclass.c
Tom Rini d678a59d2d Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d, reversing
changes made to 2ee6f3a5f7.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19 08:16:36 -06:00

127 lines
2.7 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c), Vaisala Oyj
*/
#include <common.h>
#include <dm.h>
#include <dm/device_compat.h>
#include <dm/devres.h>
#include <exports.h>
#include <reboot-mode/reboot-mode.h>
int dm_reboot_mode_update(struct udevice *dev)
{
struct reboot_mode_ops *ops = reboot_mode_get_ops(dev);
u32 rebootmode;
int ret, i;
assert(ops);
if (!ops->get)
return -ENOSYS;
ret = ops->get(dev, &rebootmode);
if (ret < 0) {
dev_err(dev, "Failed to retrieve the reboot mode value\n");
return ret;
}
const struct reboot_mode_uclass_platdata *plat_data =
dev_get_uclass_plat(dev);
for (i = 0; i < plat_data->count; i++) {
if (plat_data->modes[i].mode_id == rebootmode) {
ret = env_set(plat_data->env_variable,
plat_data->modes[i].mode_name);
if (ret) {
dev_err(dev, "Failed to set env: %s\n",
plat_data->env_variable);
return ret;
}
}
}
if (ops->set) {
/* Clear the value */
rebootmode = 0;
ret = ops->set(dev, rebootmode);
if (ret) {
dev_err(dev, "Failed to clear the reboot mode\n");
return ret;
}
}
return 0;
}
int dm_reboot_mode_pre_probe(struct udevice *dev)
{
struct reboot_mode_uclass_platdata *plat_data;
plat_data = dev_get_uclass_plat(dev);
if (!plat_data)
return -EINVAL;
#if CONFIG_IS_ENABLED(OF_CONTROL)
const char *mode_prefix = "mode-";
const int mode_prefix_len = strlen(mode_prefix);
struct ofprop property;
const u32 *propvalue;
const char *propname;
plat_data->env_variable = dev_read_string(dev, "u-boot,env-variable");
if (!plat_data->env_variable)
plat_data->env_variable = "reboot-mode";
plat_data->count = 0;
dev_for_each_property(property, dev) {
propvalue = dev_read_prop_by_prop(&property, &propname, NULL);
if (!propvalue) {
dev_err(dev, "Could not get the value for property %s\n",
propname);
return -EINVAL;
}
if (!strncmp(propname, mode_prefix, mode_prefix_len))
plat_data->count++;
}
plat_data->modes = devm_kcalloc(dev, plat_data->count,
sizeof(struct reboot_mode_mode), 0);
struct reboot_mode_mode *next = plat_data->modes;
dev_for_each_property(property, dev) {
propvalue = dev_read_prop_by_prop(&property, &propname, NULL);
if (!propvalue) {
dev_err(dev, "Could not get the value for property %s\n",
propname);
return -EINVAL;
}
if (!strncmp(propname, mode_prefix, mode_prefix_len)) {
next->mode_name = &propname[mode_prefix_len];
next->mode_id = fdt32_to_cpu(*propvalue);
next++;
}
}
#else
if (!plat_data->env_variable)
plat_data->env_variable = "reboot-mode";
#endif
return 0;
}
UCLASS_DRIVER(reboot_mode) = {
.name = "reboot-mode",
.id = UCLASS_REBOOT_MODE,
.pre_probe = dm_reboot_mode_pre_probe,
.per_device_plat_auto =
sizeof(struct reboot_mode_uclass_platdata),
};