1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/sdramc.c b/arch/arm/mach-at91/sdramc.c
new file mode 100644
index 0000000000..655f24ecd9
--- /dev/null
+++ b/arch/arm/mach-at91/sdramc.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2020 Ahmad Fatoum <a.fatoum@pengutronix.de>
+ */
+
+#include <common.h>
+#include <init.h>
+#include <mach/at91/hardware.h>
+#include <asm/barebox-arm.h>
+#include <mach/at91/at91sam9_sdramc.h>
+#include <asm/memory.h>
+#include <pbl.h>
+#include <io.h>
+
+void __noreturn at91sam9260_barebox_entry(void *boarddata)
+{
+	barebox_arm_entry(AT91_CHIPSELECT_1,
+			  at91_get_sdram_size(IOMEM(AT91SAM9260_BASE_SDRAMC)),
+			  boarddata);
+}
+
+static int at91_sdramc_probe(struct device *dev)
+{
+	struct resource *iores;
+	void __iomem *base;
+
+	iores = dev_request_mem_resource(dev, 0);
+	if (IS_ERR(iores))
+		return PTR_ERR(iores);
+	base = IOMEM(iores->start);
+
+	return arm_add_mem_device("ram0", AT91_CHIPSELECT_1,
+				  at91_get_sdram_size(base));
+}
+
+static struct of_device_id at91_sdramc_dt_ids[] = {
+	{ .compatible = "atmel,at91sam9260-sdramc" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, at91_sdramc_dt_ids);
+
+static struct driver at91_sdramc_driver = {
+	.name   = "at91sam9260-sdramc",
+	.probe  = at91_sdramc_probe,
+	.of_compatible = at91_sdramc_dt_ids,
+};
+mem_platform_driver(at91_sdramc_driver);