[PATCH 1/1] pm9263: add nand support

[Sascha Hauer]

On Fri, Oct 30, 2009 at 10:38:26PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> 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(-)

applied

Sascha

> 
> 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
> 
> 
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