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pm9263: add nand support 

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Ilko Iliev <iliev@ronetix.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2009-10-30 22:38:26 +01:00 committed by Sascha Hauer
parent 78c8011603
commit 2e092539f5
2 changed files with 55 additions and 1 deletions
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6
arch/arm/configs/pm9263_defconfig
View File

@ -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

50
board/pm9263/init.c
View File

@ -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);