[PATCH v3 5/6] ARM: mxs/mx23evk: add mmc device

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

On Mon, Feb 21, 2011 at 06:42:58PM +0800, Shawn Guo wrote:
> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
> ---
>  arch/arm/mach-mxs/Kconfig        |    1 +
>  arch/arm/mach-mxs/mach-mx23evk.c |   47 ++++++++++++++++++++++++++++++++++++++
>  2 files changed, 48 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
> index cd2fbdf..f47fae3 100644
> --- a/arch/arm/mach-mxs/Kconfig
> +++ b/arch/arm/mach-mxs/Kconfig
> @@ -19,6 +19,7 @@ config MACH_MX23EVK
>  	bool "Support MX23EVK Platform"
>  	select SOC_IMX23
>  	select MXS_HAVE_AMBA_DUART
> +	select MXS_HAVE_PLATFORM_MMC
>  	default y
>  	help
>  	  Include support for MX23EVK platform. This includes specific
> diff --git a/arch/arm/mach-mxs/mach-mx23evk.c b/arch/arm/mach-mxs/mach-mx23evk.c
> index aa06400..21519e3 100644
> --- a/arch/arm/mach-mxs/mach-mx23evk.c
> +++ b/arch/arm/mach-mxs/mach-mx23evk.c
> @@ -26,17 +26,64 @@
>  
>  #include "devices-mx23.h"
>  
> +#define MX23EVK_MMC0_WRITE_PROTECT	MXS_GPIO_NR(1, 30)
> +#define MX23EVK_MMC0_SLOT_POWER		MXS_GPIO_NR(1, 29)
> +
>  static const iomux_cfg_t mx23evk_pads[] __initconst = {
>  	/* duart */
>  	MX23_PAD_PWM0__DUART_RX | MXS_PAD_4MA,
>  	MX23_PAD_PWM1__DUART_TX | MXS_PAD_4MA,
> +
> +	/* mmc */
> +	MX23_PAD_SSP1_DATA0__SSP1_DATA0 |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
> +	MX23_PAD_SSP1_DATA1__SSP1_DATA1 |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
> +	MX23_PAD_SSP1_DATA2__SSP1_DATA2 |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
> +	MX23_PAD_SSP1_DATA3__SSP1_DATA3 |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
> +	MX23_PAD_GPMI_D08__SSP1_DATA4 |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
> +	MX23_PAD_GPMI_D09__SSP1_DATA5 |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
> +	MX23_PAD_GPMI_D10__SSP1_DATA6 |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
> +	MX23_PAD_GPMI_D11__SSP1_DATA7 |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
> +	MX23_PAD_SSP1_CMD__SSP1_CMD |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
> +	MX23_PAD_SSP1_DETECT__SSP1_DETECT |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_SSP1_SCK__SSP1_SCK |
> +		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	/* write protect */
> +	MX23_PAD_PWM4__GPIO_1_30 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	/* slot power enable */
> +	MX23_PAD_PWM3__GPIO_1_29 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +};
> +
> +static struct mxs_mmc_platform_data mx23_mmc_pdata __initdata = {
> +	.wp_gpio = MX23EVK_MMC0_WRITE_PROTECT,
> +	.flags = SLOTF_8_BIT_CAPABLE,
can this be const?

>  };
>  
>  static void __init mx23evk_init(void)
>  {
> +	int ret;
> +
>  	mxs_iomux_setup_multiple_pads(mx23evk_pads, ARRAY_SIZE(mx23evk_pads));
>  
>  	mx23_add_duart();
> +
> +	/* power on mmc slot by writing 0 to the gpio */
> +	ret = gpio_request_one(MX23EVK_MMC0_SLOT_POWER, GPIOF_DIR_OUT,
> +			       "mmc0-slot-power");
> +	if (ret)
> +		pr_warn("failed to request gpio mmc0-slot-power: %d\n", ret);
> +	mx23_add_mmc(0, &mx23_mmc_pdata);
>  }
>  
>  static void __init mx23evk_timer_init(void)
> -- 
> 1.7.1

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