[PATCH 2/4] ARM: i.MX53 EVK: add spi device

[u.kleine-koenig@pengutronix.de (Uwe Kleine-König)]

Hi Yong,

On Tue, Jan 11, 2011 at 08:45:48PM +0800, yong.shen at freescale.com wrote:
> From: Yong Shen <yong.shen@freescale.com>
> 
> 1. add platform data for spi device
> 2. Kconfig change
> 
> Signed-off-by: Yong Shen <yong.shen@freescale.com>
> ---
>  arch/arm/mach-mx5/Kconfig          |    1 +
>  arch/arm/mach-mx5/board-mx53_evk.c |   21 +++++++++++++++++++++
>  2 files changed, 22 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
> index 23b0e3f..777740b 100644
> --- a/arch/arm/mach-mx5/Kconfig
> +++ b/arch/arm/mach-mx5/Kconfig
> @@ -126,6 +126,7 @@ config MACH_MX53_EVK
>  	select IMX_HAVE_PLATFORM_IMX_UART
>  	select IMX_HAVE_PLATFORM_IMX_I2C
>  	select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
> +	select IMX_HAVE_PLATFORM_SPI_IMX
>  	help
>  	  Include support for MX53 EVK platform. This includes specific
>  	  configurations for the board and its peripherals.
> diff --git a/arch/arm/mach-mx5/board-mx53_evk.c b/arch/arm/mach-mx5/board-mx53_evk.c
> index 4043451..739bc62 100644
> --- a/arch/arm/mach-mx5/board-mx53_evk.c
> +++ b/arch/arm/mach-mx5/board-mx53_evk.c
> @@ -33,6 +33,8 @@
>  #include <mach/iomux-mx53.h>
>  
>  #define SMD_FEC_PHY_RST		IMX_GPIO_NR(7, 6)
> +#define EVK_ECSPI1_CS0		IMX_GPIO_NR(2, 30)
> +#define EVK_ECSPI1_CS1		IMX_GPIO_NR(3, 19)
>  
>  #include "crm_regs.h"
>  #include "devices-imx53.h"
> @@ -52,6 +54,13 @@ static iomux_v3_cfg_t mx53_evk_pads[] = {
>  	MX53_PAD_ATA_CS_1__UART3_RXD,
>  	MX53_PAD_ATA_DA_1__UART3_CTS,
>  	MX53_PAD_ATA_DA_2__UART3_RTS,
> +
> +	MX53_PAD_EIM_D16__GPIO_3_16,
> +	MX53_PAD_EIM_D17__GPIO_3_17,
> +	MX53_PAD_EIM_D18__GPIO_3_18,
> +
> +	MX53_PAD_EIM_EB2__GPIO_2_30,
> +	MX53_PAD_EIM_D19__GPIO_3_19,
It would be nice to document what the pins are used for.  For e.g.
MX53_PAD_ATA_DA_1__UART3_CTS it's quite obvious, but just from looking
at your patch I don't see what MX53_PAD_EIM_D1[678]__GPIO_3_1[678] are
used for.

Best regards
Uwe

>  };
>  
>  static const struct imxuart_platform_data mx53_evk_uart_pdata __initconst = {
> @@ -89,6 +98,16 @@ static struct fec_platform_data mx53_evk_fec_pdata = {
>  	.phy = PHY_INTERFACE_MODE_RMII,
>  };
>  
> +static int mx53_evk_spi_cs[] = {
> +	EVK_ECSPI1_CS0,
> +	EVK_ECSPI1_CS1,
> +};
> +
> +static const struct spi_imx_master mx53_evk_spi_data __initconst = {
> +	.chipselect     = mx53_evk_spi_cs,
> +	.num_chipselect = ARRAY_SIZE(mx53_evk_spi_cs),
> +};
> +
>  static void __init mx53_evk_board_init(void)
>  {
>  	mxc_iomux_v3_setup_multiple_pads(mx53_evk_pads,
> @@ -102,6 +121,8 @@ static void __init mx53_evk_board_init(void)
>  
>  	imx53_add_sdhci_esdhc_imx(0, NULL);
>  	imx53_add_sdhci_esdhc_imx(1, NULL);
> +
> +	imx53_add_ecspi(0, &mx53_evk_spi_data);
>  }
>  
>  static void __init mx53_evk_timer_init(void)
> -- 
> 1.7.1
> 
> 
> 

-- 
Pengutronix e.K.                           | Uwe Kleine-K?nig            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |