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ARM: shmobile: bockw: add SDHI0 support

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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: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Kuninori Morimoto 2013-04-17 05:17:56 +00:00 committed by Simon Horman
parent 6e26703025
commit ca7bb30948
1 changed files with 29 additions and 0 deletions
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29
arch/arm/mach-shmobile/board-bockw.c
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@ -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 = {