1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/sysreset/sysreset_qcom-pshold.c b/drivers/sysreset/sysreset_qcom-pshold.c
new file mode 100644
index 00000000000..45290478536
--- /dev/null
+++ b/drivers/sysreset/sysreset_qcom-pshold.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm PSHOLD reset driver
+ *
+ * Copyright (c) 2024 Sartura Ltd.
+ *
+ * Author: Robert Marko <robert.marko@sartura.hr>
+ * Based on the Linux msm-poweroff driver.
+ *
+ */
+
+#include <dm.h>
+#include <sysreset.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+
+struct qcom_pshold_priv {
+	phys_addr_t base;
+};
+
+static int qcom_pshold_request(struct udevice *dev, enum sysreset_t type)
+{
+	struct qcom_pshold_priv *priv = dev_get_priv(dev);
+
+	writel(0, priv->base);
+	mdelay(10000);
+
+	return 0;
+}
+
+static struct sysreset_ops qcom_pshold_ops = {
+	.request = qcom_pshold_request,
+};
+
+static int qcom_pshold_probe(struct udevice *dev)
+{
+	struct qcom_pshold_priv *priv = dev_get_priv(dev);
+
+	priv->base = dev_read_addr(dev);
+	return priv->base == FDT_ADDR_T_NONE ? -EINVAL : 0;
+}
+
+static const struct udevice_id qcom_pshold_ids[] = {
+	{ .compatible = "qcom,pshold", },
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(qcom_pshold) = {
+	.name 		= "qcom_pshold",
+	.id 		= UCLASS_SYSRESET,
+	.of_match 	= qcom_pshold_ids,
+	.probe 		= qcom_pshold_probe,
+	.priv_auto	= sizeof(struct qcom_pshold_priv),
+	.ops 		= &qcom_pshold_ops,
+};