msm: 8x50: Add initial support for SDCC

Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>

4 files changed, 303 insertions, 5 deletions

diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
index 2e8391307f55..12863f791434 100644
--- a/arch/arm/mach-msm/board-qsd8x50.c
+++ b/arch/arm/mach-msm/board-qsd8x50.c
@@ -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")
diff --git a/arch/arm/mach-msm/devices-qsd8x50.c b/arch/arm/mach-msm/devices-qsd8x50.c
index a4b798f20ccb..b1a8f0f680a7 100644
--- a/arch/arm/mach-msm/devices-qsd8x50.c
+++ b/arch/arm/mach-msm/devices-qsd8x50.c
@@ -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),
diff --git a/arch/arm/mach-msm/gpiomux-8x50.c b/arch/arm/mach-msm/gpiomux-8x50.c
index 4406e0f4ae95..f7a4ea593c95 100644
--- a/arch/arm/mach-msm/gpiomux-8x50.c
+++ b/arch/arm/mach-msm/gpiomux-8x50.c
@@ -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
+        },
 };
diff --git a/arch/arm/mach-msm/include/mach/msm_iomap-8x50.h b/arch/arm/mach-msm/include/mach/msm_iomap-8x50.h
index acc819eb76e5..732a9657677c 100644
--- a/arch/arm/mach-msm/include/mach/msm_iomap-8x50.h
+++ b/arch/arm/mach-msm/include/mach/msm_iomap-8x50.h
@@ -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