1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/soc/soc_amd_versal2.c b/drivers/soc/soc_amd_versal2.c
new file mode 100644
index 00000000000..66bcb22b4fa
--- /dev/null
+++ b/drivers/soc/soc_amd_versal2.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AMD Versal Gen 2 SOC driver
+ *
+ * Copyright (C) 2022 - 2024, Advanced Micro Devices, Inc.
+ */
+
+#include <dm.h>
+#include <soc.h>
+#include <zynqmp_firmware.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+
+#include <linux/bitfield.h>
+
+/*
+ * v1 -> 0x10 - ES1
+ * v2 -> 0x20 - Production
+ */
+static const char versal2_family[] = "Versal Gen 2";
+
+struct soc_amd_versal2_priv {
+	const char *family;
+	char revision;
+};
+
+static int soc_amd_versal2_get_family(struct udevice *dev, char *buf, int size)
+{
+	struct soc_amd_versal2_priv *priv = dev_get_priv(dev);
+
+	return snprintf(buf, size, "%s", priv->family);
+}
+
+static int soc_amd_versal2_get_revision(struct udevice *dev, char *buf, int size)
+{
+	struct soc_amd_versal2_priv *priv = dev_get_priv(dev);
+
+	return snprintf(buf, size, "v%d", priv->revision);
+}
+
+static const struct soc_ops soc_amd_versal2_ops = {
+	.get_family = soc_amd_versal2_get_family,
+	.get_revision = soc_amd_versal2_get_revision,
+};
+
+static int soc_amd_versal2_probe(struct udevice *dev)
+{
+	struct soc_amd_versal2_priv *priv = dev_get_priv(dev);
+	u32 ret_payload[PAYLOAD_ARG_CNT];
+	int ret;
+
+	priv->family = versal2_family;
+
+	if (IS_ENABLED(CONFIG_ZYNQMP_FIRMWARE)) {
+		ret = xilinx_pm_request(PM_GET_CHIPID, 0, 0, 0, 0,
+					ret_payload);
+		if (ret)
+			return ret;
+	} else {
+		ret_payload[2] = readl(PMC_TAP_VERSION);
+		if (!ret_payload[2])
+			return -EINVAL;
+	}
+
+	priv->revision = FIELD_GET(PS_VERSION_MASK, ret_payload[2]);
+
+	return 0;
+}
+
+U_BOOT_DRIVER(soc_amd_versal2) = {
+	.name		= "soc_amd_versal2",
+	.id		= UCLASS_SOC,
+	.ops		= &soc_amd_versal2_ops,
+	.probe		= soc_amd_versal2_probe,
+	.priv_auto	= sizeof(struct soc_amd_versal2_priv),
+	.flags		= DM_FLAG_PRE_RELOC,
+};