[PATCH 6/7] sama5d3xek: add NOR CFI support

Jean-Christophe PLAGNIOL-VILLARD plagnioj at jcrosoft.com
Mon Dec 9 08:37:16 EST 2013


On 10:36 Sat 07 Dec     , Eric B??nard wrote:
> log is now :
> cfi_flash cfi_flash0: found cfi flash at 10000000, size 16777216
> 
> Signed-off-by: Eric Bénard <eric at eukrea.com>
> ---
>  arch/arm/boards/sama5d3xek/init.c | 35 +++++++++++++++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
> 
> diff --git a/arch/arm/boards/sama5d3xek/init.c b/arch/arm/boards/sama5d3xek/init.c
> index ff62550..f7dfea0 100644
> --- a/arch/arm/boards/sama5d3xek/init.c
> +++ b/arch/arm/boards/sama5d3xek/init.c
> @@ -118,6 +118,40 @@ static void ek_add_device_nand(void)
>  static void ek_add_device_nand(void) {}
>  #endif
>  
> +#if defined(CONFIG_DRIVER_CFI)
> +static struct sama5_smc_config __initdata cm_nor_smc_config = {
drop the __initdata
> +	.ncs_read_setup		= 10,
> +	.nrd_setup		= 10,
> +	.ncs_write_setup	= 10,
> +	.nwe_setup		= 10,
> +
> +	.ncs_read_pulse		= 11,
> +	.nrd_pulse		= 11,
> +	.ncs_write_pulse	= 11,
> +	.nwe_pulse		= 11,
> +
> +	.read_cycle		= 22,
> +	.write_cycle		= 22,
> +
> +	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_DBW_16,
> +	.tdf_cycles		= 6,
> +};
> +
> +static void ek_add_device_norcfi(void)
> +{
> +	struct clk *clk = clk_get(NULL, "smc_clk");
> +
> +	clk_enable(clk);
> +
> +	/* configure chip-select 0 (NOR) */
> +	sama5_smc_configure(0, 0, &cm_nor_smc_config);
> +
> +	add_cfi_flash_device(0, AT91_CHIPSELECT_0, 256 * 1024 * 1024, 0);
no put the right size or 0 for auto detect not 256MiB

Best Regards,
J.
> +}
> +#else
> +static void ek_add_device_norcfi(void) {}
> +#endif
> +
>  #if defined(CONFIG_DRIVER_NET_MACB)
>  static struct macb_platform_data gmac_pdata = {
>  	.phy_interface = PHY_INTERFACE_MODE_RGMII,
> @@ -413,6 +447,7 @@ static int at91sama5d3xek_devices_init(void)
>  	ek_add_device_w1();
>  	ek_add_device_hdmi();
>  	ek_add_device_nand();
> +	ek_add_device_norcfi();
>  	ek_add_led();
>  	ek_add_device_eth();
>  	ek_add_device_spi();
> -- 
> 1.8.3.1
> 
> 
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