Commit 6dff7da2 authored by Yusuke Goda's avatar Yusuke Goda Committed by Paul Mundt

ARM: mach-shmobile: mackerel: Add sdhi support

Signed-off-by: default avatarYusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent cd8ab004
......@@ -31,6 +31,9 @@
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/mfd/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
......@@ -138,6 +141,38 @@
* CN31 is used as Host in Linux.
*/
/*
* SDHI0 (CN12)
*
* SW56 : OFF
*
*/
/* MMC /SDHI1 (CN7)
*
* I/O voltage : 1.8v
*
* Power voltage : 1.8v or 3.3v
* J22 : select power voltage
* 1-2 pin : 1.8v
* 2-3 pin : 3.3v
*
* SW1 | SW33
* | bit1 | bit2 | bit3 | bit4
* -------------+------+------+------+-------
* MMC0 OFF | OFF | ON | ON | X
* MMC1 ON | OFF | ON | X | ON
* SDHI1 OFF | ON | X | OFF | ON
*
*/
/*
* SDHI2 (CN23)
*
* microSD card sloct
*
*/
/*
* FIXME !!
*
......@@ -404,6 +439,114 @@ static struct platform_device fsi_ak4643_device = {
.name = "sh_fsi2_a_ak4643",
};
/*
* The card detect pin of the top SD/MMC slot (CN7) is active low and is
* connected to GPIO A22 of SH7372 (GPIO_PORT41).
*/
static int slot_cn7_get_cd(struct platform_device *pdev)
{
if (gpio_is_valid(GPIO_PORT41))
return !gpio_get_value(GPIO_PORT41);
else
return -ENXIO;
}
/* SDHI0 */
static struct sh_mobile_sdhi_info sdhi0_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
.tmio_caps = MMC_CAP_SD_HIGHSPEED,
};
static struct resource sdhi0_resources[] = {
[0] = {
.name = "SDHI0",
.start = 0xe6850000,
.end = 0xe68501ff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x0e00) /* SDHI0 */,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device sdhi0_device = {
.name = "sh_mobile_sdhi",
.num_resources = ARRAY_SIZE(sdhi0_resources),
.resource = sdhi0_resources,
.id = 0,
.dev = {
.platform_data = &sdhi0_info,
},
};
/* SDHI1 */
static struct sh_mobile_sdhi_info sdhi1_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI1_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI1_RX,
.tmio_ocr_mask = MMC_VDD_165_195,
.tmio_flags = TMIO_MMC_WRPROTECT_DISABLE,
.tmio_caps = MMC_CAP_SD_HIGHSPEED |
MMC_CAP_NEEDS_POLL,
.get_cd = slot_cn7_get_cd,
};
static struct resource sdhi1_resources[] = {
[0] = {
.name = "SDHI1",
.start = 0xe6860000,
.end = 0xe68601ff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x0e80),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device sdhi1_device = {
.name = "sh_mobile_sdhi",
.num_resources = ARRAY_SIZE(sdhi1_resources),
.resource = sdhi1_resources,
.id = 1,
.dev = {
.platform_data = &sdhi1_info,
},
};
/* SDHI2 */
static struct sh_mobile_sdhi_info sdhi2_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI2_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI2_RX,
.tmio_flags = TMIO_MMC_WRPROTECT_DISABLE,
.tmio_caps = MMC_CAP_SD_HIGHSPEED |
MMC_CAP_NEEDS_POLL,
};
static struct resource sdhi2_resources[] = {
[0] = {
.name = "SDHI2",
.start = 0xe6870000,
.end = 0xe68701ff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x1200),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device sdhi2_device = {
.name = "sh_mobile_sdhi",
.num_resources = ARRAY_SIZE(sdhi2_resources),
.resource = sdhi2_resources,
.id = 2,
.dev = {
.platform_data = &sdhi2_info,
},
};
static struct platform_device *mackerel_devices[] __initdata = {
&nor_flash_device,
&smc911x_device,
......@@ -412,6 +555,9 @@ static struct platform_device *mackerel_devices[] __initdata = {
&leds_device,
&fsi_device,
&fsi_ak4643_device,
&sdhi0_device,
&sdhi1_device,
&sdhi2_device,
};
/* Keypad Initialization */
......@@ -567,6 +713,35 @@ static void __init mackerel_init(void)
gpio_request(GPIO_FN_IRQ21, NULL);
set_irq_type(IRQ21, IRQ_TYPE_LEVEL_HIGH);
/* enable SDHI0 */
gpio_request(GPIO_FN_SDHICD0, NULL);
gpio_request(GPIO_FN_SDHIWP0, NULL);
gpio_request(GPIO_FN_SDHICMD0, NULL);
gpio_request(GPIO_FN_SDHICLK0, NULL);
gpio_request(GPIO_FN_SDHID0_3, NULL);
gpio_request(GPIO_FN_SDHID0_2, NULL);
gpio_request(GPIO_FN_SDHID0_1, NULL);
gpio_request(GPIO_FN_SDHID0_0, NULL);
/* enable SDHI1 */
gpio_request(GPIO_FN_SDHICMD1, NULL);
gpio_request(GPIO_FN_SDHICLK1, NULL);
gpio_request(GPIO_FN_SDHID1_3, NULL);
gpio_request(GPIO_FN_SDHID1_2, NULL);
gpio_request(GPIO_FN_SDHID1_1, NULL);
gpio_request(GPIO_FN_SDHID1_0, NULL);
/* card detect pin for MMC slot (CN7) */
gpio_request(GPIO_PORT41, NULL);
gpio_direction_input(GPIO_PORT41);
/* enable SDHI2 */
gpio_request(GPIO_FN_SDHICMD2, NULL);
gpio_request(GPIO_FN_SDHICLK2, NULL);
gpio_request(GPIO_FN_SDHID2_3, NULL);
gpio_request(GPIO_FN_SDHID2_2, NULL);
gpio_request(GPIO_FN_SDHID2_1, NULL);
gpio_request(GPIO_FN_SDHID2_0, NULL);
i2c_register_board_info(0, i2c0_devices,
ARRAY_SIZE(i2c0_devices));
i2c_register_board_info(1, i2c1_devices,
......
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