[U-Boot] [PATCH v3 1/2] zynqmp: nand: Add Nand driver support for zynqmp

[Siva Durga Prasad Paladugu]

Add nand driver support for zynqmp. The Nand
controller used in ZynqMP is Arasan Nand Flash
controller.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur at xilinx.com>
---
Changes from v2:
- Moved config NAND_ARASAN to
  driver/mtd/nand/Kconfig as
  per review comment
Changes from v1:
- Newly added in series
---
 arch/arm/include/asm/arch-zynqmp/hardware.h |    2 ++
 configs/xilinx_zynqmp_ep_defconfig          |    1 +
 drivers/mtd/nand/Kconfig                    |    7 +++++++
 include/configs/xilinx_zynqmp.h             |    9 +++++++++
 4 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/arch-zynqmp/hardware.h b/arch/arm/include/asm/arch-zynqmp/hardware.h
index 0f03c24..3c9f08c 100644
--- a/arch/arm/include/asm/arch-zynqmp/hardware.h
+++ b/arch/arm/include/asm/arch-zynqmp/hardware.h
@@ -25,6 +25,8 @@
 #define ZYNQ_SDHCI_BASEADDR0	0xFF160000
 #define ZYNQ_SDHCI_BASEADDR1	0xFF170000
 
+#define ARASAN_NAND_BASEADDR	0xFF100000
+
 #define ZYNQMP_SATA_BASEADDR	0xFD0C0000
 
 #define ZYNQMP_USB0_XHCI_BASEADDR	0xFE200000
diff --git a/configs/xilinx_zynqmp_ep_defconfig b/configs/xilinx_zynqmp_ep_defconfig
index 79304c1..43a24a7 100644
--- a/configs/xilinx_zynqmp_ep_defconfig
+++ b/configs/xilinx_zynqmp_ep_defconfig
@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_ARCH_ZYNQMP=y
 CONFIG_ZYNQMP_USB=y
+CONFIG_NAND_ARASAN=y
 CONFIG_SYS_TEXT_BASE=0x8000000
 CONFIG_DEFAULT_DEVICE_TREE="zynqmp-ep108"
 CONFIG_SYS_PROMPT="ZynqMP> "
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 9a74064..6e35213 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -71,6 +71,13 @@ config NAND_SUNXI
 	Enable support for NAND. This option allows SPL to read from
 	sunxi NAND using DMA transfers.
 
+config NAND_ARASAN
+	bool "Configure Arasan Nand"
+	help
+	  This enables Nand driver support for Arasan nand flash
+	  controller. This uses the hardware ECC for read and
+	  write operations. 
+
 comment "Generic NAND options"
 
 # Enhance depends when converting drivers to Kconfig which use this config
diff --git a/include/configs/xilinx_zynqmp.h b/include/configs/xilinx_zynqmp.h
index 36c1100..1f17adb 100644
--- a/include/configs/xilinx_zynqmp.h
+++ b/include/configs/xilinx_zynqmp.h
@@ -101,6 +101,15 @@
 # define CONFIG_CMD_EXT4_WRITE
 #endif
 
+#ifdef CONFIG_NAND_ARASAN
+# define CONFIG_CMD_NAND
+# define CONFIG_CMD_NAND_LOCK_UNLOCK
+# define CONFIG_SYS_MAX_NAND_DEVICE	1
+# define CONFIG_SYS_NAND_SELF_INIT
+# define CONFIG_SYS_NAND_ONFI_DETECTION
+# define CONFIG_MTD_DEVICE
+#endif
+
 /* Miscellaneous configurable options */
 #define CONFIG_SYS_LOAD_ADDR		0x8000000
 
-- 
1.7.1