1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/arm926ejs/sam9x7_devices.c b/arch/arm/mach-at91/arm926ejs/sam9x7_devices.c
new file mode 100644
index 00000000000..c65764a3de4
--- /dev/null
+++ b/arch/arm/mach-at91/arm926ejs/sam9x7_devices.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2025 Microchip Technology Inc. and its subsidiaries
+ */
+
+#include <asm/arch/at91_common.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/gpio.h>
+#include <asm/io.h>
+
+unsigned int get_chip_id(void)
+{
+	/* The 0x40 is the offset of cidr in DBGU */
+	return readl(ATMEL_BASE_DBGU + 0x40);
+}
+
+unsigned int get_extension_chip_id(void)
+{
+	/* The 0x44 is the offset of exid in DBGU */
+	return readl(ATMEL_BASE_DBGU + 0x44);
+}
+
+char *get_cpu_name(void)
+{
+	unsigned int extension_id = get_extension_chip_id();
+
+	if (cpu_is_sam9x7()) {
+		switch (extension_id) {
+		case ARCH_EXID_SAM9X70:
+			return "SAM9X70";
+		case ARCH_EXID_SAM9X72:
+			return "SAM9X72";
+		case ARCH_EXID_SAM9X75:
+			return "SAM9X75";
+		case ARCH_EXID_SAM9X75_D1M:
+			return "SAM9X75 16MB DDR2 SiP";
+		case ARCH_EXID_SAM9X75_D5M:
+			return "SAM9X75 64MB DDR2 SiP";
+		case ARCH_EXID_SAM9X75_D1G:
+			return "SAM9X75 125MB DDR3L SiP";
+		case ARCH_EXID_SAM9X75_D2G:
+			return "SAM9X75 250MB DDR3L SiP";
+		default:
+			return "Unknown CPU type";
+		}
+	} else {
+		return "Unknown CPU type";
+	}
+}