From 8b4d95fc76b85696c508f316810a6fbc15a7b8c5 Mon Sep 17 00:00:00 2001 From: Sahitya Tummala Date: Tue, 18 Jan 2011 11:22:50 +0530 Subject: [PATCH] msm: 8x50: Add initial support for SDCC Signed-off-by: Sahitya Tummala --- arch/arm/mach-msm/board-qsd8x50.c | 81 +++++++++- arch/arm/mach-msm/devices-qsd8x50.c | 196 ++++++++++++++++++++++++ arch/arm/mach-msm/gpiomux-8x50.c | 23 +++ arch/arm/mach-msm/include/mach/msm_iomap-8x50.h | 8 +- 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 2e83913..12863f7 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 #include #include +#include #include #include @@ -31,6 +32,8 @@ #include #include #include +#include +#include #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 a4b798f..b1a8f0f 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 4406e0f..f7a4ea5 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 acc819e..732a965 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 -- 2.7.4