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msm: 8x50: Add initial support for SDCC

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Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
This commit is contained in:
Sahitya Tummala 2011-01-18 11:22:50 +05:30 committed by David Brown
parent 7a89248a47
commit 8b4d95fc76
4 changed files with 303 additions and 5 deletions
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81
arch/arm/mach-msm/board-qsd8x50.c
View File

@ -1,4 +1,4 @@
/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
/* Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -21,6 +21,7 @@
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/usb/msm_hsusb.h>
#include <linux/err.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@ -31,6 +32,8 @@
#include <mach/irqs.h>
#include <mach/sirc.h>
#include <mach/gpio.h>
#include <mach/vreg.h>
#include <mach/mmc.h>
#include "devices.h"
@ -95,6 +98,81 @@ static struct platform_device *devices[] __initdata = {
&msm_device_hsusb_host,
};
static struct msm_mmc_gpio sdc1_gpio_cfg[] = {
{51, "sdc1_dat_3"},
{52, "sdc1_dat_2"},
{53, "sdc1_dat_1"},
{54, "sdc1_dat_0"},
{55, "sdc1_cmd"},
{56, "sdc1_clk"}
};
static struct vreg *vreg_mmc;
static unsigned long vreg_sts;
static uint32_t msm_sdcc_setup_power(struct device *dv, unsigned int vdd)
{
int rc = 0;
struct platform_device *pdev;
pdev = container_of(dv, struct platform_device, dev);
if (vdd == 0) {
if (!vreg_sts)
return 0;
clear_bit(pdev->id, &vreg_sts);
if (!vreg_sts) {
rc = vreg_disable(vreg_mmc);
if (rc)
pr_err("vreg_mmc disable failed for slot "
"%d: %d\n", pdev->id, rc);
}
return 0;
}
if (!vreg_sts) {
rc = vreg_set_level(vreg_mmc, 2900);
if (rc)
pr_err("vreg_mmc set level failed for slot %d: %d\n",
pdev->id, rc);
rc = vreg_enable(vreg_mmc);
if (rc)
pr_err("vreg_mmc enable failed for slot %d: %d\n",
pdev->id, rc);
}
set_bit(pdev->id, &vreg_sts);
return 0;
}
static struct msm_mmc_gpio_data sdc1_gpio = {
.gpio = sdc1_gpio_cfg,
.size = ARRAY_SIZE(sdc1_gpio_cfg),
};
static struct msm_mmc_platform_data qsd8x50_sdc1_data = {
.ocr_mask = MMC_VDD_27_28 | MMC_VDD_28_29,
.translate_vdd = msm_sdcc_setup_power,
.gpio_data = &sdc1_gpio,
};
static void __init qsd8x50_init_mmc(void)
{
if (machine_is_qsd8x50_ffa() || machine_is_qsd8x50a_ffa())
vreg_mmc = vreg_get(NULL, "gp6");
else
vreg_mmc = vreg_get(NULL, "gp5");
if (IS_ERR(vreg_mmc)) {
pr_err("vreg get for vreg_mmc failed (%ld)\n",
PTR_ERR(vreg_mmc));
return;
}
msm_add_sdcc(1, &qsd8x50_sdc1_data, 0, 0);
}
static void __init qsd8x50_map_io(void)
{
msm_map_qsd8x50_io();
@ -113,6 +191,7 @@ static void __init qsd8x50_init(void)
msm_device_hsusb.dev.parent = &msm_device_otg.dev;
msm_device_hsusb_host.dev.parent = &msm_device_otg.dev;
platform_add_devices(devices, ARRAY_SIZE(devices));
qsd8x50_init_mmc();
}
MACHINE_START(QSD8X50_SURF, "QCT QSD8X50 SURF")

196
arch/arm/mach-msm/devices-qsd8x50.c
View File

@ -124,6 +124,194 @@ struct platform_device msm_device_hsusb_host = {
},
};
static struct resource resources_sdc1[] = {
{
.start = MSM_SDC1_PHYS,
.end = MSM_SDC1_PHYS + MSM_SDC1_SIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_SDC1_0,
.end = INT_SDC1_0,
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
{
.start = INT_SDC1_1,
.end = INT_SDC1_1,
.flags = IORESOURCE_IRQ,
.name = "pio_irq",
},
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
},
{
.start = 8,
.end = 8,
.flags = IORESOURCE_DMA,
},
};
static struct resource resources_sdc2[] = {
{
.start = MSM_SDC2_PHYS,
.end = MSM_SDC2_PHYS + MSM_SDC2_SIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_SDC2_0,
.end = INT_SDC2_0,
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
{
.start = INT_SDC2_1,
.end = INT_SDC2_1,
.flags = IORESOURCE_IRQ,
.name = "pio_irq",
},
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
},
{
.start = 8,
.end = 8,
.flags = IORESOURCE_DMA,
},
};
static struct resource resources_sdc3[] = {
{
.start = MSM_SDC3_PHYS,
.end = MSM_SDC3_PHYS + MSM_SDC3_SIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_SDC3_0,
.end = INT_SDC3_0,
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
{
.start = INT_SDC3_1,
.end = INT_SDC3_1,
.flags = IORESOURCE_IRQ,
.name = "pio_irq",
},
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
},
{
.start = 8,
.end = 8,
.flags = IORESOURCE_DMA,
},
};
static struct resource resources_sdc4[] = {
{
.start = MSM_SDC4_PHYS,
.end = MSM_SDC4_PHYS + MSM_SDC4_SIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_SDC4_0,
.end = INT_SDC4_0,
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
{
.start = INT_SDC4_1,
.end = INT_SDC4_1,
.flags = IORESOURCE_IRQ,
.name = "pio_irq",
},
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
},
{
.start = 8,
.end = 8,
.flags = IORESOURCE_DMA,
},
};
struct platform_device msm_device_sdc1 = {
.name = "msm_sdcc",
.id = 1,
.num_resources = ARRAY_SIZE(resources_sdc1),
.resource = resources_sdc1,
.dev = {
.coherent_dma_mask = 0xffffffff,
},
};
struct platform_device msm_device_sdc2 = {
.name = "msm_sdcc",
.id = 2,
.num_resources = ARRAY_SIZE(resources_sdc2),
.resource = resources_sdc2,
.dev = {
.coherent_dma_mask = 0xffffffff,
},
};
struct platform_device msm_device_sdc3 = {
.name = "msm_sdcc",
.id = 3,
.num_resources = ARRAY_SIZE(resources_sdc3),
.resource = resources_sdc3,
.dev = {
.coherent_dma_mask = 0xffffffff,
},
};
struct platform_device msm_device_sdc4 = {
.name = "msm_sdcc",
.id = 4,
.num_resources = ARRAY_SIZE(resources_sdc4),
.resource = resources_sdc4,
.dev = {
.coherent_dma_mask = 0xffffffff,
},
};
static struct platform_device *msm_sdcc_devices[] __initdata = {
&msm_device_sdc1,
&msm_device_sdc2,
&msm_device_sdc3,
&msm_device_sdc4,
};
int __init msm_add_sdcc(unsigned int controller,
struct msm_mmc_platform_data *plat,
unsigned int stat_irq, unsigned long stat_irq_flags)
{
struct platform_device *pdev;
struct resource *res;
if (controller < 1 || controller > 4)
return -EINVAL;
pdev = msm_sdcc_devices[controller-1];
pdev->dev.platform_data = plat;
res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "status_irq");
if (!res)
return -EINVAL;
else if (stat_irq) {
res->start = res->end = stat_irq;
res->flags &= ~IORESOURCE_DISABLED;
res->flags |= stat_irq_flags;
}
return platform_device_register(pdev);
}
struct clk msm_clocks_8x50[] = {
CLK_PCOM("adm_clk", ADM_CLK, NULL, 0),
CLK_PCOM("ebi1_clk", EBI1_CLK, NULL, CLK_MIN),
@ -144,6 +332,14 @@ struct clk msm_clocks_8x50[] = {
CLK_PCOM("pbus_clk", PBUS_CLK, NULL, CLK_MIN),
CLK_PCOM("pcm_clk", PCM_CLK, NULL, 0),
CLK_PCOM("sdac_clk", SDAC_CLK, NULL, OFF),
CLK_PCOM("sdc_clk", SDC1_CLK, &msm_device_sdc1.dev, OFF),
CLK_PCOM("sdc_pclk", SDC1_P_CLK, &msm_device_sdc1.dev, OFF),
CLK_PCOM("sdc_clk", SDC2_CLK, &msm_device_sdc2.dev, OFF),
CLK_PCOM("sdc_pclk", SDC2_P_CLK, &msm_device_sdc2.dev, OFF),
CLK_PCOM("sdc_clk", SDC3_CLK, &msm_device_sdc3.dev, OFF),
CLK_PCOM("sdc_pclk", SDC3_P_CLK, &msm_device_sdc3.dev, OFF),
CLK_PCOM("sdc_clk", SDC4_CLK, &msm_device_sdc4.dev, OFF),
CLK_PCOM("sdc_pclk", SDC4_P_CLK, &msm_device_sdc4.dev, OFF),
CLK_PCOM("spi_clk", SPI_CLK, NULL, 0),
CLK_PCOM("tsif_clk", TSIF_CLK, NULL, 0),
CLK_PCOM("tsif_ref_clk", TSIF_REF_CLK, NULL, 0),

23
arch/arm/mach-msm/gpiomux-8x50.c
View File

@ -16,6 +16,19 @@
*/
#include "gpiomux.h"
#if defined(CONFIG_MMC_MSM) || defined(CONFIG_MMC_MSM_MODULE)
#define SDCC_DAT_0_3_CMD_ACTV_CFG (GPIOMUX_VALID | GPIOMUX_PULL_UP\
| GPIOMUX_FUNC_1 | GPIOMUX_DRV_8MA)
#define SDCC_CLK_ACTV_CFG (GPIOMUX_VALID | GPIOMUX_PULL_NONE\
| GPIOMUX_FUNC_1 | GPIOMUX_DRV_8MA)
#else
#define SDCC_DAT_0_3_CMD_ACTV_CFG 0
#define SDCC_CLK_ACTV_CFG 0
#endif
#define SDC1_SUSPEND_CONFIG (GPIOMUX_VALID | GPIOMUX_PULL_DOWN\
| GPIOMUX_FUNC_GPIO | GPIOMUX_DRV_2MA)
struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = {
[86] = { /* UART3 RX */
.suspended = GPIOMUX_DRV_2MA | GPIOMUX_PULL_DOWN |
@ -25,4 +38,14 @@ struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = {
.suspended = GPIOMUX_DRV_2MA | GPIOMUX_PULL_DOWN |
GPIOMUX_FUNC_1 | GPIOMUX_VALID,
},
/* SDC1 data[3:0] & CMD */
[51 ... 55] = {
.active = SDCC_DAT_0_3_CMD_ACTV_CFG,
.suspended = SDC1_SUSPEND_CONFIG
},
/* SDC1 CLK */
[56] = {
.active = SDCC_CLK_ACTV_CFG,
.suspended = SDC1_SUSPEND_CONFIG
},
};

8
arch/arm/mach-msm/include/mach/msm_iomap-8x50.h
View File

@ -132,16 +132,16 @@
#define MSM_UART2DM_PHYS 0xA0900000
#define MSM_SDC1_PHYS 0xA0400000
#define MSM_SDC1_PHYS 0xA0300000
#define MSM_SDC1_SIZE SZ_4K
#define MSM_SDC2_PHYS 0xA0500000
#define MSM_SDC2_PHYS 0xA0400000
#define MSM_SDC2_SIZE SZ_4K
#define MSM_SDC3_PHYS 0xA0600000
#define MSM_SDC3_PHYS 0xA0500000
#define MSM_SDC3_SIZE SZ_4K
#define MSM_SDC4_PHYS 0xA0700000
#define MSM_SDC4_PHYS 0xA0600000
#define MSM_SDC4_SIZE SZ_4K
#endif