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Commit ca7bb309 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Simon Horman
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ARM: shmobile: bockw: add SDHI0 support 



This patch is directly accessing to PUPR4 register which can
control SDHI0 CD/WP pin pull-up setting.
It should be replaced in the future.

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 6e267030

arch/arm/mach-shmobile/board-bockw.c

+29 −0
Original line number Diff line number Diff line
@@ -18,6 +18,8 @@ 
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */



#include <linux/mfd/tmio.h>

#include <linux/mmc/host.h>

#include <linux/pinctrl/machine.h>

#include <linux/platform_device.h>

#include <linux/regulator/fixed.h>
@@ -54,16 +56,28 @@ static struct resource smsc911x_resources[] = { 
	DEFINE_RES_IRQ(irq_pin(0)), /* IRQ 0 */

};



/* SDHI */

static struct sh_mobile_sdhi_info sdhi0_info = {

	.tmio_caps	= MMC_CAP_SD_HIGHSPEED,

	.tmio_ocr_mask	= MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34,

	.tmio_flags	= TMIO_MMC_HAS_IDLE_WAIT,

};



static const struct pinctrl_map bockw_pinctrl_map[] = {

	/* SCIF0 */

	PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a7778",

				  "scif0_data_a", "scif0"),

	PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a7778",

				  "scif0_ctrl", "scif0"),

	/* SDHI0 */

	PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7778",

				  "sdhi0", "sdhi0"),

};



#define FPGA	0x18200000

#define IRQ0MR	0x30

#define PFC	0xfffc0000

#define PUPR4	0x110

static void __init bockw_init(void)

{

	void __iomem *base;
@@ -76,6 +90,7 @@ static void __init bockw_init(void) 
				  ARRAY_SIZE(bockw_pinctrl_map));

	r8a7778_pinmux_init();



	/* for SMSC */

	base = ioremap_nocache(FPGA, SZ_1M);

	if (base) {

		/*
@@ -98,6 +113,20 @@ static void __init bockw_init(void) 
			smsc911x_resources, ARRAY_SIZE(smsc911x_resources),

			&smsc911x_data, sizeof(smsc911x_data));

	}



	/* for SDHI */

	base = ioremap_nocache(PFC, 0x200);

	if (base) {

		/*

		 * FIXME

		 *

		 * SDHI CD/WP pin needs pull-up

		 */

		iowrite32(ioread32(base + PUPR4) | (3 << 26), base + PUPR4);

		iounmap(base);



		r8a7778_sdhi_init(0, &sdhi0_info);

	}

}



static const char *bockw_boards_compat_dt[] __initdata = {