[PATCH 2/3] mxs_spi: initial commit

[Michael Grzeschik]

Somehow this patch doesn't have the corrent subject.
I will resend. Thanks.

On Mon, Feb 04, 2013 at 05:26:19PM +0100, Michael Grzeschik wrote:
> Signed-off-by: Michael Grzeschik <m.grzeschik at pengutronix.de>
> ---
>  arch/arm/boards/freescale-mx28-evk/mx28-evk.c |   28 +++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/arch/arm/boards/freescale-mx28-evk/mx28-evk.c b/arch/arm/boards/freescale-mx28-evk/mx28-evk.c
> index 4311473..325365b 100644
> --- a/arch/arm/boards/freescale-mx28-evk/mx28-evk.c
> +++ b/arch/arm/boards/freescale-mx28-evk/mx28-evk.c
> @@ -30,6 +30,7 @@
>  #include <mach/mci.h>
>  #include <mach/fb.h>
>  #include <mach/ocotp.h>
> +#include <spi/spi.h>
>  
>  #include <asm/armlinux.h>
>  #include <asm/mmu.h>
> @@ -126,6 +127,13 @@ static const uint32_t mx28evk_pads[] = {
>  	GPMI_ALE | VE_3_3V,
>  	GPMI_CLE | VE_3_3V,
>  	GPMI_RESETN,		/* act as WP, external PU */
> +
> +	/* SSP */
> +	SSP2_D0 | VE_3_3V | PULLUP(1) | STRENGTH(S8MA), /* MISO DO */
> +	SSP2_D3 | VE_3_3V | PULLUP(1) | STRENGTH(S8MA), /* SS0 !CS */
> +	SSP2_CMD | VE_3_3V | PULLUP(1) | STRENGTH(S8MA), /* MOSI DIO */
> +	SSP2_SCK | VE_3_3V | PULLUP(1) | STRENGTH(S8MA), /* CLK */
> +
>  };
>  
>  static struct mxs_mci_platform_data mci_pdata = {
> @@ -225,6 +233,17 @@ static int mx28_evk_mem_init(void)
>  }
>  mem_initcall(mx28_evk_mem_init);
>  
> +static const struct spi_board_info mx28evk_spi_board_info[] = {
> +	{
> +		.name = "m25p80",
> +		/* we leave this with the lower frequency
> +		   as the ssp unit otherwise locks up */
> +		.max_speed_hz = 32000000,
> +		.bus_num = 2,
> +		.chip_select = 0,
> +	}
> +};
> +
>  static int mx28_evk_devices_init(void)
>  {
>  	int i;
> @@ -235,8 +254,11 @@ static int mx28_evk_devices_init(void)
>  
>  	/* enable IOCLK0 to run at the PLL frequency */
>  	imx_set_ioclk(0, 480000000);
> +	imx_set_ioclk(1, 320000000);
>  	/* run the SSP unit clock at 100 MHz */
>  	imx_set_sspclk(0, 100000000, 1);
> +	/* run the SSP unit 2 clock at 160Mhz */
> +	imx_set_sspclk(2, 160000000, 1);
>  
>  	armlinux_set_bootparams((void *)IMX_MEMORY_BASE + 0x100);
>  	armlinux_set_architecture(MACH_TYPE_MX28EVK);
> @@ -259,6 +281,12 @@ static int mx28_evk_devices_init(void)
>  	add_generic_device("mxs_nand", 0, NULL, MXS_GPMI_BASE, 0x2000,
>  			   IORESOURCE_MEM, NULL);
>  
> +	spi_register_board_info(mx28evk_spi_board_info,
> +			ARRAY_SIZE(mx28evk_spi_board_info));
> +
> +	add_generic_device("mxs_spi", 2, NULL, IMX_SSP2_BASE, 0x2000,
> +			   IORESOURCE_MEM, NULL);
> +
>  	return 0;
>  }
>  device_initcall(mx28_evk_devices_init);
> -- 
> 1.7.10.4
> 
> 
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