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-rw-r--r--drivers/power/reset/Kconfig8
-rw-r--r--drivers/power/reset/Makefile1
-rw-r--r--drivers/power/reset/at91-sama5d2_shdwc.c2
-rw-r--r--drivers/power/reset/qcom-pon.c30
-rw-r--r--drivers/power/reset/th1520-aon-reboot.c98
5 files changed, 123 insertions, 16 deletions
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
index 733d81262159..8248895ca903 100644
--- a/drivers/power/reset/Kconfig
+++ b/drivers/power/reset/Kconfig
@@ -225,8 +225,16 @@ config POWER_RESET_ST
help
Reset support for STMicroelectronics boards.
+config POWER_RESET_TH1520_AON
+ tristate "T-Head TH1520 AON firmware poweroff and reset driver"
+ depends on TH1520_PM_DOMAINS
+ help
+ This driver supports power-off and reset operations for T-Head
+ TH1520 SoCs running the AON firmware.
+
config POWER_RESET_TORADEX_EC
tristate "Toradex Embedded Controller power-off and reset driver"
+ depends on ARCH_MXC || COMPILE_TEST
depends on I2C
select REGMAP_I2C
help
diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile
index b7c2b5940be9..51da87e05ce7 100644
--- a/drivers/power/reset/Makefile
+++ b/drivers/power/reset/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o
obj-$(CONFIG_POWER_RESET_REGULATOR) += regulator-poweroff.o
obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o
obj-$(CONFIG_POWER_RESET_ST) += st-poweroff.o
+obj-$(CONFIG_POWER_RESET_TH1520_AON) += th1520-aon-reboot.o
obj-$(CONFIG_POWER_RESET_TORADEX_EC) += tdx-ec-poweroff.o
obj-$(CONFIG_POWER_RESET_TPS65086) += tps65086-restart.o
obj-$(CONFIG_POWER_RESET_VERSATILE) += arm-versatile-reboot.o
diff --git a/drivers/power/reset/at91-sama5d2_shdwc.c b/drivers/power/reset/at91-sama5d2_shdwc.c
index e9fe08ee3812..ecf15694f925 100644
--- a/drivers/power/reset/at91-sama5d2_shdwc.c
+++ b/drivers/power/reset/at91-sama5d2_shdwc.c
@@ -129,7 +129,7 @@ static void at91_wakeup_status(struct platform_device *pdev)
else if (SHDW_RTTWK(reg, &rcfg->shdwc))
reason = "RTT";
- pr_info("AT91: Wake-Up source: %s\n", reason);
+ dev_info(&pdev->dev, "Wake-Up source: %s\n", reason);
}
static void at91_poweroff(void)
diff --git a/drivers/power/reset/qcom-pon.c b/drivers/power/reset/qcom-pon.c
index 1344b361a475..7e108982a582 100644
--- a/drivers/power/reset/qcom-pon.c
+++ b/drivers/power/reset/qcom-pon.c
@@ -19,7 +19,7 @@
#define NO_REASON_SHIFT 0
-struct pm8916_pon {
+struct qcom_pon {
struct device *dev;
struct regmap *regmap;
u32 baseaddr;
@@ -27,11 +27,11 @@ struct pm8916_pon {
long reason_shift;
};
-static int pm8916_reboot_mode_write(struct reboot_mode_driver *reboot,
+static int qcom_pon_reboot_mode_write(struct reboot_mode_driver *reboot,
unsigned int magic)
{
- struct pm8916_pon *pon = container_of
- (reboot, struct pm8916_pon, reboot_mode);
+ struct qcom_pon *pon = container_of
+ (reboot, struct qcom_pon, reboot_mode);
int ret;
ret = regmap_update_bits(pon->regmap,
@@ -44,9 +44,9 @@ static int pm8916_reboot_mode_write(struct reboot_mode_driver *reboot,
return ret;
}
-static int pm8916_pon_probe(struct platform_device *pdev)
+static int qcom_pon_probe(struct platform_device *pdev)
{
- struct pm8916_pon *pon;
+ struct qcom_pon *pon;
long reason_shift;
int error;
@@ -72,7 +72,7 @@ static int pm8916_pon_probe(struct platform_device *pdev)
if (reason_shift != NO_REASON_SHIFT) {
pon->reboot_mode.dev = &pdev->dev;
pon->reason_shift = reason_shift;
- pon->reboot_mode.write = pm8916_reboot_mode_write;
+ pon->reboot_mode.write = qcom_pon_reboot_mode_write;
error = devm_reboot_mode_register(&pdev->dev, &pon->reboot_mode);
if (error) {
dev_err(&pdev->dev, "can't register reboot mode\n");
@@ -85,7 +85,7 @@ static int pm8916_pon_probe(struct platform_device *pdev)
return devm_of_platform_populate(&pdev->dev);
}
-static const struct of_device_id pm8916_pon_id_table[] = {
+static const struct of_device_id qcom_pon_id_table[] = {
{ .compatible = "qcom,pm8916-pon", .data = (void *)GEN1_REASON_SHIFT },
{ .compatible = "qcom,pm8941-pon", .data = (void *)NO_REASON_SHIFT },
{ .compatible = "qcom,pms405-pon", .data = (void *)GEN1_REASON_SHIFT },
@@ -93,16 +93,16 @@ static const struct of_device_id pm8916_pon_id_table[] = {
{ .compatible = "qcom,pmk8350-pon", .data = (void *)GEN2_REASON_SHIFT },
{ }
};
-MODULE_DEVICE_TABLE(of, pm8916_pon_id_table);
+MODULE_DEVICE_TABLE(of, qcom_pon_id_table);
-static struct platform_driver pm8916_pon_driver = {
- .probe = pm8916_pon_probe,
+static struct platform_driver qcom_pon_driver = {
+ .probe = qcom_pon_probe,
.driver = {
- .name = "pm8916-pon",
- .of_match_table = pm8916_pon_id_table,
+ .name = "qcom-pon",
+ .of_match_table = qcom_pon_id_table,
},
};
-module_platform_driver(pm8916_pon_driver);
+module_platform_driver(qcom_pon_driver);
-MODULE_DESCRIPTION("pm8916 Power On driver");
+MODULE_DESCRIPTION("Qualcomm Power On driver");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/power/reset/th1520-aon-reboot.c b/drivers/power/reset/th1520-aon-reboot.c
new file mode 100644
index 000000000000..ec249667a0ff
--- /dev/null
+++ b/drivers/power/reset/th1520-aon-reboot.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * T-HEAD TH1520 AON Firmware Reboot Driver
+ *
+ * Copyright (c) 2025 Icenowy Zheng <uwu@icenowy.me>
+ */
+
+#include <linux/auxiliary_bus.h>
+#include <linux/firmware/thead/thead,th1520-aon.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/of.h>
+#include <linux/reboot.h>
+#include <linux/slab.h>
+
+#define TH1520_AON_REBOOT_PRIORITY 200
+
+struct th1520_aon_msg_empty_body {
+ struct th1520_aon_rpc_msg_hdr hdr;
+ u16 reserved[12];
+} __packed __aligned(1);
+
+static int th1520_aon_pwroff_handler(struct sys_off_data *data)
+{
+ struct th1520_aon_chan *aon_chan = data->cb_data;
+ struct th1520_aon_msg_empty_body msg = {};
+
+ msg.hdr.svc = TH1520_AON_RPC_SVC_WDG;
+ msg.hdr.func = TH1520_AON_WDG_FUNC_POWER_OFF;
+ msg.hdr.size = TH1520_AON_RPC_MSG_NUM;
+
+ th1520_aon_call_rpc(aon_chan, &msg);
+
+ return NOTIFY_DONE;
+}
+
+static int th1520_aon_restart_handler(struct sys_off_data *data)
+{
+ struct th1520_aon_chan *aon_chan = data->cb_data;
+ struct th1520_aon_msg_empty_body msg = {};
+
+ msg.hdr.svc = TH1520_AON_RPC_SVC_WDG;
+ msg.hdr.func = TH1520_AON_WDG_FUNC_RESTART;
+ msg.hdr.size = TH1520_AON_RPC_MSG_NUM;
+
+ th1520_aon_call_rpc(aon_chan, &msg);
+
+ return NOTIFY_DONE;
+}
+
+static int th1520_aon_reboot_probe(struct auxiliary_device *adev,
+ const struct auxiliary_device_id *id)
+{
+ struct device *dev = &adev->dev;
+ int ret;
+
+ /* Expect struct th1520_aon_chan to be passed via platform_data */
+ ret = devm_register_sys_off_handler(dev, SYS_OFF_MODE_POWER_OFF,
+ TH1520_AON_REBOOT_PRIORITY,
+ th1520_aon_pwroff_handler,
+ adev->dev.platform_data);
+
+ if (ret) {
+ dev_err(dev, "Failed to register power off handler\n");
+ return ret;
+ }
+
+ ret = devm_register_sys_off_handler(dev, SYS_OFF_MODE_RESTART,
+ TH1520_AON_REBOOT_PRIORITY,
+ th1520_aon_restart_handler,
+ adev->dev.platform_data);
+
+ if (ret) {
+ dev_err(dev, "Failed to register restart handler\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct auxiliary_device_id th1520_aon_reboot_id_table[] = {
+ { .name = "th1520_pm_domains.reboot" },
+ {},
+};
+MODULE_DEVICE_TABLE(auxiliary, th1520_aon_reboot_id_table);
+
+static struct auxiliary_driver th1520_aon_reboot_driver = {
+ .driver = {
+ .name = "th1520-aon-reboot",
+ },
+ .probe = th1520_aon_reboot_probe,
+ .id_table = th1520_aon_reboot_id_table,
+};
+module_auxiliary_driver(th1520_aon_reboot_driver);
+
+MODULE_AUTHOR("Icenowy Zheng <uwu@icenowy.me>");
+MODULE_DESCRIPTION("T-HEAD TH1520 AON-firmware-based reboot driver");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.0) at 2025-10-05 04:39:15 +0300