Merge branch 'next'

1 files changed, 64 insertions, 0 deletions

diff --git a/drivers/timer/gxp-timer.c b/drivers/timer/gxp-timer.c
new file mode 100644
index 00000000000..6f316bc8c5c
--- /dev/null
+++ b/drivers/timer/gxp-timer.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * GXP timer driver
+ *
+ * (C) Copyright 2022 Hewlett Packard Enterprise Development LP.
+ * Author: Nick Hawkins <[email protected]>
+ * Author: Jean-Marie Verdun <[email protected]>
+ */
+
+#include <clk.h>
+#include <dm.h>
+#include <timer.h>
+#include <asm/io.h>
+
+#define USTIMELO	0x18
+#define USTIMEHI	0x1C
+
+struct gxp_timer_priv {
+	void __iomem *base;
+};
+
+static u64 gxp_timer_get_count(struct udevice *dev)
+{
+	struct gxp_timer_priv *priv = dev_get_priv(dev);
+	u64 val;
+
+	val = readl(priv->base + USTIMEHI);
+	val = (val << 32) | readl(priv->base + USTIMELO);
+
+	return val;
+}
+
+static int gxp_timer_probe(struct udevice *dev)
+{
+	struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
+	struct gxp_timer_priv *priv = dev_get_priv(dev);
+
+	priv->base = dev_read_addr_ptr(dev);
+	if (!priv->base)
+		return -ENOENT;
+
+	uc_priv->clock_rate = 1000000;
+
+	return 0;
+}
+
+static const struct timer_ops gxp_timer_ops = {
+	.get_count = gxp_timer_get_count,
+};
+
+static const struct udevice_id gxp_timer_ids[] = {
+	{ .compatible = "hpe,gxp-timer" },
+	{}
+};
+
+U_BOOT_DRIVER(gxp_timer) = {
+	.name = "gxp-timer",
+	.id = UCLASS_TIMER,
+	.of_match = gxp_timer_ids,
+	.priv_auto = sizeof(struct gxp_timer_priv),
+	.probe = gxp_timer_probe,
+	.ops = &gxp_timer_ops,
+	.flags = DM_FLAG_PRE_RELOC,
+};