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| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2009-10-30 22:38:26 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2009-11-02 08:23:02 +0100 |
| commit | 2e092539f5af011f8461d551177b4bc19619ac2b (patch) | |
| tree | 45df61328a8a764e91460d83d4c2b283d36b13a4 | |
| parent | 78c801160321af2727c946260f60362f9441a316 (diff) | |
| download | barebox-2e092539f5af011f8461d551177b4bc19619ac2b.tar.gz barebox-2e092539f5af011f8461d551177b4bc19619ac2b.tar.xz | |
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>
| -rw-r--r-- | arch/arm/configs/pm9263_defconfig | 6 | ||||
| -rw-r--r-- | 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 eda317d559..c1e5954d9d 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 1060fe27a3..c6b4421f44 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); |