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-rw-r--r--drivers/mtd/nand/Kconfig7
-rw-r--r--drivers/mtd/nand/Makefile1
-rw-r--r--drivers/mtd/nand/denali.c4
-rw-r--r--drivers/mtd/nand/denali.h2
-rw-r--r--drivers/mtd/nand/denali_dt.c68
5 files changed, 81 insertions, 1 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 71d678fc66..85b26d6088 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -16,6 +16,13 @@ config NAND_DENALI
help
Enable support for the Denali NAND controller.
+config NAND_DENALI_DT
+ bool "Support Denali NAND controller as a DT device"
+ depends on NAND_DENALI && OF_CONTROL && DM
+ help
+ Enable the driver for NAND flash on platforms using a Denali NAND
+ controller as a DT device.
+
config SYS_NAND_DENALI_64BIT
bool "Use 64-bit variant of Denali NAND controller"
depends on NAND_DENALI
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index c3d4a996f3..9f7d9d6ff7 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -44,6 +44,7 @@ obj-$(CONFIG_NAND_ATMEL) += atmel_nand.o
obj-$(CONFIG_NAND_ARASAN) += arasan_nfc.o
obj-$(CONFIG_NAND_DAVINCI) += davinci_nand.o
obj-$(CONFIG_NAND_DENALI) += denali.o
+obj-$(CONFIG_NAND_DENALI_DT) += denali_dt.o
obj-$(CONFIG_NAND_FSL_ELBC) += fsl_elbc_nand.o
obj-$(CONFIG_NAND_FSL_IFC) += fsl_ifc_nand.o
obj-$(CONFIG_NAND_FSL_UPM) += fsl_upm.o
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 18280b0b2f..47cf37d1d9 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -1175,7 +1175,7 @@ static void denali_hw_init(struct denali_nand_info *denali)
static struct nand_ecclayout nand_oob;
-static int denali_init(struct denali_nand_info *denali)
+int denali_init(struct denali_nand_info *denali)
{
struct mtd_info *mtd = nand_to_mtd(&denali->nand);
int ret;
@@ -1273,6 +1273,7 @@ fail:
return ret;
}
+#ifndef CONFIG_NAND_DENALI_DT
static int __board_nand_init(void)
{
struct denali_nand_info *denali;
@@ -1296,3 +1297,4 @@ void board_nand_init(void)
if (__board_nand_init() < 0)
pr_warn("Failed to initialize Denali NAND controller.\n");
}
+#endif
diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h
index 0e098bddf1..694bce53a9 100644
--- a/drivers/mtd/nand/denali.h
+++ b/drivers/mtd/nand/denali.h
@@ -464,4 +464,6 @@ struct denali_nand_info {
uint32_t max_banks;
};
+int denali_init(struct denali_nand_info *denali);
+
#endif /* __DENALI_H__ */
diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c
new file mode 100644
index 0000000000..0a6155c748
--- /dev/null
+++ b/drivers/mtd/nand/denali_dt.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2017 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+
+#include "denali.h"
+
+static const struct udevice_id denali_nand_dt_ids[] = {
+ {
+ .compatible = "altr,socfpga-denali-nand",
+ },
+ {
+ .compatible = "socionext,uniphier-denali-nand-v5a",
+ },
+ {
+ .compatible = "socionext,uniphier-denali-nand-v5b",
+ },
+ { /* sentinel */ }
+};
+
+static int denali_dt_probe(struct udevice *dev)
+{
+ struct denali_nand_info *denali = dev_get_priv(dev);
+ struct resource res;
+ int ret;
+
+ ret = dev_read_resource_byname(dev, "denali_reg", &res);
+ if (ret)
+ return ret;
+
+ denali->flash_reg = devm_ioremap(dev, res.start, resource_size(&res));
+
+ ret = dev_read_resource_byname(dev, "nand_data", &res);
+ if (ret)
+ return ret;
+
+ denali->flash_mem = devm_ioremap(dev, res.start, resource_size(&res));
+
+ return denali_init(denali);
+}
+
+U_BOOT_DRIVER(denali_nand_dt) = {
+ .name = "denali-nand-dt",
+ .id = UCLASS_MISC,
+ .of_match = denali_nand_dt_ids,
+ .probe = denali_dt_probe,
+ .priv_auto_alloc_size = sizeof(struct denali_nand_info),
+};
+
+void board_nand_init(void)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = uclass_get_device_by_driver(UCLASS_MISC,
+ DM_GET_DRIVER(denali_nand_dt),
+ &dev);
+ if (ret && ret != -ENODEV)
+ printf("Failed to initialize Denali NAND controller. (error %d)\n",
+ ret);
+}