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path: root/drivers/power/reset/zx-reboot.c
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Diffstat (limited to 'drivers/power/reset/zx-reboot.c')
-rw-r--r--drivers/power/reset/zx-reboot.c86
1 files changed, 0 insertions, 86 deletions
diff --git a/drivers/power/reset/zx-reboot.c b/drivers/power/reset/zx-reboot.c
deleted file mode 100644
index 457950833dba..000000000000
--- a/drivers/power/reset/zx-reboot.c
+++ /dev/null
@@ -1,86 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * ZTE zx296702 SoC reset code
- *
- * Copyright (c) 2015 Linaro Ltd.
- *
- * Author: Jun Nie <jun.nie@linaro.org>
- */
-
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/notifier.h>
-#include <linux/of_address.h>
-#include <linux/platform_device.h>
-#include <linux/reboot.h>
-
-static void __iomem *base;
-static void __iomem *pcu_base;
-
-static int zx_restart_handler(struct notifier_block *this,
- unsigned long mode, void *cmd)
-{
- writel_relaxed(1, base + 0xb0);
- writel_relaxed(1, pcu_base + 0x34);
-
- mdelay(50);
- pr_emerg("Unable to restart system\n");
-
- return NOTIFY_DONE;
-}
-
-static struct notifier_block zx_restart_nb = {
- .notifier_call = zx_restart_handler,
- .priority = 128,
-};
-
-static int zx_reboot_probe(struct platform_device *pdev)
-{
- struct device_node *np = pdev->dev.of_node;
- int err;
-
- base = of_iomap(np, 0);
- if (!base) {
- WARN(1, "failed to map base address");
- return -ENODEV;
- }
-
- np = of_find_compatible_node(NULL, NULL, "zte,zx296702-pcu");
- pcu_base = of_iomap(np, 0);
- of_node_put(np);
- if (!pcu_base) {
- iounmap(base);
- WARN(1, "failed to map pcu_base address");
- return -ENODEV;
- }
-
- err = register_restart_handler(&zx_restart_nb);
- if (err) {
- iounmap(base);
- iounmap(pcu_base);
- dev_err(&pdev->dev, "Register restart handler failed(err=%d)\n",
- err);
- }
-
- return err;
-}
-
-static const struct of_device_id zx_reboot_of_match[] = {
- { .compatible = "zte,sysctrl" },
- {}
-};
-MODULE_DEVICE_TABLE(of, zx_reboot_of_match);
-
-static struct platform_driver zx_reboot_driver = {
- .probe = zx_reboot_probe,
- .driver = {
- .name = "zx-reboot",
- .of_match_table = zx_reboot_of_match,
- },
-};
-module_platform_driver(zx_reboot_driver);
-
-MODULE_DESCRIPTION("ZTE SoCs reset driver");
-MODULE_AUTHOR("Jun Nie <jun.nie@linaro.org>");
-MODULE_LICENSE("GPL v2");