1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/mtd/nand/nand_denali_dt.c b/drivers/mtd/nand/nand_denali_dt.c
new file mode 100644
index 0000000000..09eb110c87
--- /dev/null
+++ b/drivers/mtd/nand/nand_denali_dt.c
@@ -0,0 +1,101 @@
+/*
+ * NAND Flash Controller Device Driver for DT
+ *
+ * Copyright © 2011, Picochip.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <common.h>
+#include <driver.h>
+#include <malloc.h>
+#include <init.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <mach/generic.h>
+#include <io.h>
+#include <of_mtd.h>
+#include <errno.h>
+
+#include <linux/clk.h>
+
+
+#include "denali.h"
+
+struct denali_dt {
+	struct denali_nand_info	denali;
+	struct clk		*clk;
+};
+
+
+static int denali_dt_probe(struct device_d *ofdev)
+{
+	struct denali_dt *dt;
+	struct denali_nand_info *denali;
+	int ret;
+
+	if (!IS_ENABLED(CONFIG_OFDEVICE))
+		return 1;
+
+	dt = kzalloc(sizeof(*dt), GFP_KERNEL);
+	if (!dt)
+		return -ENOMEM;
+	denali = &dt->denali;
+
+	denali->platform = DT;
+	denali->dev = ofdev;
+
+	denali->flash_mem = dev_request_mem_region(ofdev, 0);
+	if (IS_ERR(denali->flash_mem))
+		return PTR_ERR(denali->flash_mem);
+	denali->flash_reg = dev_request_mem_region(ofdev, 1);
+	if (IS_ERR(denali->flash_reg))
+		return PTR_ERR(denali->flash_reg);
+
+	dt->clk = clk_get(ofdev, NULL);
+	if (IS_ERR(dt->clk)) {
+		dev_err(ofdev, "no clk available\n");
+		return PTR_ERR(dt->clk);
+	}
+	clk_enable(dt->clk);
+
+	denali->have_hw_ecc_fixup = of_property_read_bool(ofdev->device_node,
+		"have-hw-ecc-fixup");
+
+	ret = denali_init(denali);
+	if (ret)
+		goto out_disable_clk;
+
+	return 0;
+
+out_disable_clk:
+	clk_disable(dt->clk);
+
+	return ret;
+}
+
+static __maybe_unused struct of_device_id denali_nand_compatible[] = {
+	{
+		.compatible = "denali,denali-nand-dt"
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct driver_d denali_dt_driver = {
+	.name	= "denali-nand-dt",
+	.probe		= denali_dt_probe,
+	.of_compatible = DRV_OF_COMPAT(denali_nand_compatible)
+};
+device_platform_driver(denali_dt_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jamie Iles");
+MODULE_DESCRIPTION("DT driver for Denali NAND controller");