[PATCH 1/1] pm9263: add nand support

[Jean-Christophe PLAGNIOL-VILLARD]

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
Cc: Ilko Iliev <iliev at ronetix.at>
---
 arch/arm/configs/pm9263_defconfig |    6 +++-
 board/pm9263/init.c               |   50 +++++++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+), 1 deletions(-)

diff --git a/arch/arm/configs/pm9263_defconfig b/arch/arm/configs/pm9263_defconfig
index eda317d..c1e5954 100644
--- a/arch/arm/configs/pm9263_defconfig
+++ b/arch/arm/configs/pm9263_defconfig
@@ -191,7 +191,11 @@ CONFIG_DRIVER_CFI_BANK_WIDTH_2=y
 CONFIG_DRIVER_CFI_BANK_WIDTH_4=y
 # CONFIG_DRIVER_CFI_BANK_WIDTH_8 is not set
 CONFIG_CFI_BUFFER_WRITE=y
-# CONFIG_NAND is not set
+CONFIG_NAND=y
+CONFIG_NAND_ATMEL=y
+# CONFIG_MTD_NAND_VERIFY_WRITE is not set
+# CONFIG_MTD_NAND_ECC_SMC is not set
+CONFIG_MTD_NAND_IDS=y
 
 #
 # Filesystem support            
diff --git a/board/pm9263/init.c b/board/pm9263/init.c
index 1060fe2..c6b4421 100644
--- a/board/pm9263/init.c
+++ b/board/pm9263/init.c
@@ -37,6 +37,55 @@
 #include <mach/board.h>
 #include <mach/gpio.h>
 #include <mach/io.h>
+#include <mach/at91sam9_smc.h>
+#include <mach/sam9_smc.h>
+
+static struct atmel_nand_data nand_pdata = {
+	.ale		= 21,
+	.cle		= 22,
+/*	.det_pin	= ... not connected */
+	.ecc_base	= (void __iomem *)(AT91_BASE_SYS + AT91_ECC0),
+	.ecc_mode	= NAND_ECC_HW,
+	.rdy_pin	= AT91_PIN_PB30,
+	.enable_pin	= AT91_PIN_PD15,
+#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
+	.bus_width_16	= 1,
+#else
+	.bus_width_16	= 0,
+#endif
+};
+
+static struct sam9_smc_config pm_nand_smc_config = {
+	.ncs_read_setup		= 1,
+	.nrd_setup		= 1,
+	.ncs_write_setup	= 1,
+	.nwe_setup		= 1,
+
+	.ncs_read_pulse		= 3,
+	.nrd_pulse		= 3,
+	.ncs_write_pulse	= 3,
+	.nwe_pulse		= 3,
+
+	.read_cycle		= 5,
+	.write_cycle		= 5,
+
+	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
+	.tdf_cycles		= 2,
+};
+
+static void pm_add_device_nand(void)
+{
+	/* setup bus-width (8 or 16) */
+	if (nand_pdata.bus_width_16)
+		pm_nand_smc_config.mode |= AT91_SMC_DBW_16;
+	else
+		pm_nand_smc_config.mode |= AT91_SMC_DBW_8;
+
+	/* configure chip-select 3 (NAND) */
+	sam9_smc_configure(3, &pm_nand_smc_config);
+
+	at91_add_device_nand(&nand_pdata);
+}
 
 static struct device_d cfi_dev = {
 	.name     = "cfi_flash",
@@ -63,6 +112,7 @@ static int pm9263_devices_init(void)
 	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_EMAC);
 
 	at91_add_device_sdram(64 * 1024 * 1024);
+	pm_add_device_nand();
 	at91_add_device_eth(&macb_pdata);
 	register_device(&cfi_dev);
 
-- 
1.6.5