Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) ST-Ericsson SA 2010 |
| 3 | * |
| 4 | * Author: Hanumath Prasad <hanumath.prasad@stericsson.com> |
| 5 | * License terms: GNU General Public License (GPL) version 2 |
| 6 | */ |
| 7 | |
| 8 | #include <linux/kernel.h> |
| 9 | #include <linux/gpio.h> |
| 10 | #include <linux/amba/bus.h> |
| 11 | #include <linux/amba/mmci.h> |
| 12 | #include <linux/mmc/host.h> |
| 13 | #include <linux/platform_device.h> |
| 14 | |
| 15 | #include <plat/pincfg.h> |
Linus Walleij | 5d7b846 | 2010-10-14 13:57:59 +0200 | [diff] [blame^] | 16 | #include <plat/ste_dma40.h> |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 17 | #include <mach/devices.h> |
| 18 | #include <mach/hardware.h> |
| 19 | |
Rabin Vincent | fbf1eadf | 2010-09-29 19:46:32 +0530 | [diff] [blame] | 20 | #include "devices-db8500.h" |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 21 | #include "pins-db8500.h" |
| 22 | #include "board-mop500.h" |
Linus Walleij | 5d7b846 | 2010-10-14 13:57:59 +0200 | [diff] [blame^] | 23 | #include "ste-dma40-db8500.h" |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 24 | |
| 25 | static pin_cfg_t mop500_sdi_pins[] = { |
Rabin Vincent | b8410a1 | 2010-08-09 19:18:17 +0530 | [diff] [blame] | 26 | /* SDI0 (MicroSD slot) */ |
| 27 | GPIO18_MC0_CMDDIR, |
| 28 | GPIO19_MC0_DAT0DIR, |
| 29 | GPIO20_MC0_DAT2DIR, |
| 30 | GPIO21_MC0_DAT31DIR, |
| 31 | GPIO22_MC0_FBCLK, |
| 32 | GPIO23_MC0_CLK, |
| 33 | GPIO24_MC0_CMD, |
| 34 | GPIO25_MC0_DAT0, |
| 35 | GPIO26_MC0_DAT1, |
| 36 | GPIO27_MC0_DAT2, |
| 37 | GPIO28_MC0_DAT3, |
| 38 | |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 39 | /* SDI4 (on-board eMMC) */ |
| 40 | GPIO197_MC4_DAT3, |
| 41 | GPIO198_MC4_DAT2, |
| 42 | GPIO199_MC4_DAT1, |
| 43 | GPIO200_MC4_DAT0, |
| 44 | GPIO201_MC4_CMD, |
| 45 | GPIO202_MC4_FBCLK, |
| 46 | GPIO203_MC4_CLK, |
| 47 | GPIO204_MC4_DAT7, |
| 48 | GPIO205_MC4_DAT6, |
| 49 | GPIO206_MC4_DAT5, |
| 50 | GPIO207_MC4_DAT4, |
| 51 | }; |
| 52 | |
| 53 | static pin_cfg_t mop500_sdi2_pins[] = { |
| 54 | /* SDI2 (POP eMMC) */ |
| 55 | GPIO128_MC2_CLK, |
| 56 | GPIO129_MC2_CMD, |
| 57 | GPIO130_MC2_FBCLK, |
| 58 | GPIO131_MC2_DAT0, |
| 59 | GPIO132_MC2_DAT1, |
| 60 | GPIO133_MC2_DAT2, |
| 61 | GPIO134_MC2_DAT3, |
| 62 | GPIO135_MC2_DAT4, |
| 63 | GPIO136_MC2_DAT5, |
| 64 | GPIO137_MC2_DAT6, |
| 65 | GPIO138_MC2_DAT7, |
| 66 | }; |
| 67 | |
| 68 | /* |
Rabin Vincent | b8410a1 | 2010-08-09 19:18:17 +0530 | [diff] [blame] | 69 | * SDI 0 (MicroSD slot) |
| 70 | */ |
| 71 | |
| 72 | /* MMCIPOWER bits */ |
| 73 | #define MCI_DATA2DIREN (1 << 2) |
| 74 | #define MCI_CMDDIREN (1 << 3) |
| 75 | #define MCI_DATA0DIREN (1 << 4) |
| 76 | #define MCI_DATA31DIREN (1 << 5) |
| 77 | #define MCI_FBCLKEN (1 << 7) |
| 78 | |
| 79 | static u32 mop500_sdi0_vdd_handler(struct device *dev, unsigned int vdd, |
| 80 | unsigned char power_mode) |
| 81 | { |
| 82 | if (power_mode == MMC_POWER_UP) |
Linus Walleij | 1bde668 | 2010-09-09 22:29:34 +0200 | [diff] [blame] | 83 | gpio_set_value_cansleep(GPIO_SDMMC_EN, 1); |
Rabin Vincent | b8410a1 | 2010-08-09 19:18:17 +0530 | [diff] [blame] | 84 | else if (power_mode == MMC_POWER_OFF) |
Linus Walleij | 1bde668 | 2010-09-09 22:29:34 +0200 | [diff] [blame] | 85 | gpio_set_value_cansleep(GPIO_SDMMC_EN, 0); |
Rabin Vincent | b8410a1 | 2010-08-09 19:18:17 +0530 | [diff] [blame] | 86 | |
| 87 | return MCI_FBCLKEN | MCI_CMDDIREN | MCI_DATA0DIREN | |
| 88 | MCI_DATA2DIREN | MCI_DATA31DIREN; |
| 89 | } |
| 90 | |
Linus Walleij | 5d7b846 | 2010-10-14 13:57:59 +0200 | [diff] [blame^] | 91 | #ifdef CONFIG_STE_DMA40 |
| 92 | struct stedma40_chan_cfg mop500_sdi0_dma_cfg_rx = { |
| 93 | .mode = STEDMA40_MODE_LOGICAL, |
| 94 | .dir = STEDMA40_PERIPH_TO_MEM, |
| 95 | .src_dev_type = DB8500_DMA_DEV29_SD_MM0_RX, |
| 96 | .dst_dev_type = STEDMA40_DEV_DST_MEMORY, |
| 97 | .src_info.data_width = STEDMA40_WORD_WIDTH, |
| 98 | .dst_info.data_width = STEDMA40_WORD_WIDTH, |
| 99 | }; |
| 100 | |
| 101 | static struct stedma40_chan_cfg mop500_sdi0_dma_cfg_tx = { |
| 102 | .mode = STEDMA40_MODE_LOGICAL, |
| 103 | .dir = STEDMA40_MEM_TO_PERIPH, |
| 104 | .src_dev_type = STEDMA40_DEV_SRC_MEMORY, |
| 105 | .dst_dev_type = DB8500_DMA_DEV29_SD_MM0_TX, |
| 106 | .src_info.data_width = STEDMA40_WORD_WIDTH, |
| 107 | .dst_info.data_width = STEDMA40_WORD_WIDTH, |
| 108 | }; |
| 109 | #endif |
| 110 | |
Rabin Vincent | b8410a1 | 2010-08-09 19:18:17 +0530 | [diff] [blame] | 111 | static struct mmci_platform_data mop500_sdi0_data = { |
| 112 | .vdd_handler = mop500_sdi0_vdd_handler, |
| 113 | .ocr_mask = MMC_VDD_29_30, |
| 114 | .f_max = 100000000, |
| 115 | .capabilities = MMC_CAP_4_BIT_DATA, |
| 116 | .gpio_cd = GPIO_SDMMC_CD, |
| 117 | .gpio_wp = -1, |
Linus Walleij | 5d7b846 | 2010-10-14 13:57:59 +0200 | [diff] [blame^] | 118 | #ifdef CONFIG_STE_DMA40 |
| 119 | .dma_filter = stedma40_filter, |
| 120 | .dma_rx_param = &mop500_sdi0_dma_cfg_rx, |
| 121 | .dma_tx_param = &mop500_sdi0_dma_cfg_tx, |
| 122 | #endif |
Rabin Vincent | b8410a1 | 2010-08-09 19:18:17 +0530 | [diff] [blame] | 123 | }; |
| 124 | |
| 125 | void mop500_sdi_tc35892_init(void) |
| 126 | { |
| 127 | int ret; |
| 128 | |
| 129 | ret = gpio_request(GPIO_SDMMC_EN, "SDMMC_EN"); |
| 130 | if (!ret) |
| 131 | ret = gpio_request(GPIO_SDMMC_1V8_3V_SEL, |
| 132 | "GPIO_SDMMC_1V8_3V_SEL"); |
| 133 | if (ret) |
| 134 | return; |
| 135 | |
Philippe Langlais | 7863513 | 2011-01-27 14:35:37 +0100 | [diff] [blame] | 136 | gpio_direction_output(GPIO_SDMMC_1V8_3V_SEL, 0); |
| 137 | gpio_direction_output(GPIO_SDMMC_EN, 1); |
Rabin Vincent | b8410a1 | 2010-08-09 19:18:17 +0530 | [diff] [blame] | 138 | |
Rabin Vincent | fbf1eadf | 2010-09-29 19:46:32 +0530 | [diff] [blame] | 139 | db8500_add_sdi0(&mop500_sdi0_data); |
Rabin Vincent | b8410a1 | 2010-08-09 19:18:17 +0530 | [diff] [blame] | 140 | } |
| 141 | |
| 142 | /* |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 143 | * SDI 2 (POP eMMC, not on DB8500ed) |
| 144 | */ |
| 145 | |
Linus Walleij | 5d7b846 | 2010-10-14 13:57:59 +0200 | [diff] [blame^] | 146 | #ifdef CONFIG_STE_DMA40 |
| 147 | struct stedma40_chan_cfg mop500_sdi2_dma_cfg_rx = { |
| 148 | .mode = STEDMA40_MODE_LOGICAL, |
| 149 | .dir = STEDMA40_PERIPH_TO_MEM, |
| 150 | .src_dev_type = DB8500_DMA_DEV28_SD_MM2_RX, |
| 151 | .dst_dev_type = STEDMA40_DEV_DST_MEMORY, |
| 152 | .src_info.data_width = STEDMA40_WORD_WIDTH, |
| 153 | .dst_info.data_width = STEDMA40_WORD_WIDTH, |
| 154 | }; |
| 155 | |
| 156 | static struct stedma40_chan_cfg mop500_sdi2_dma_cfg_tx = { |
| 157 | .mode = STEDMA40_MODE_LOGICAL, |
| 158 | .dir = STEDMA40_MEM_TO_PERIPH, |
| 159 | .src_dev_type = STEDMA40_DEV_SRC_MEMORY, |
| 160 | .dst_dev_type = DB8500_DMA_DEV28_SD_MM2_TX, |
| 161 | .src_info.data_width = STEDMA40_WORD_WIDTH, |
| 162 | .dst_info.data_width = STEDMA40_WORD_WIDTH, |
| 163 | }; |
| 164 | #endif |
| 165 | |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 166 | static struct mmci_platform_data mop500_sdi2_data = { |
| 167 | .ocr_mask = MMC_VDD_165_195, |
| 168 | .f_max = 100000000, |
| 169 | .capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA, |
| 170 | .gpio_cd = -1, |
| 171 | .gpio_wp = -1, |
Linus Walleij | 5d7b846 | 2010-10-14 13:57:59 +0200 | [diff] [blame^] | 172 | #ifdef CONFIG_STE_DMA40 |
| 173 | .dma_filter = stedma40_filter, |
| 174 | .dma_rx_param = &mop500_sdi2_dma_cfg_rx, |
| 175 | .dma_tx_param = &mop500_sdi2_dma_cfg_tx, |
| 176 | #endif |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 177 | }; |
| 178 | |
| 179 | /* |
| 180 | * SDI 4 (on-board eMMC) |
| 181 | */ |
| 182 | |
Linus Walleij | 5d7b846 | 2010-10-14 13:57:59 +0200 | [diff] [blame^] | 183 | #ifdef CONFIG_STE_DMA40 |
| 184 | struct stedma40_chan_cfg mop500_sdi4_dma_cfg_rx = { |
| 185 | .mode = STEDMA40_MODE_LOGICAL, |
| 186 | .dir = STEDMA40_PERIPH_TO_MEM, |
| 187 | .src_dev_type = DB8500_DMA_DEV42_SD_MM4_RX, |
| 188 | .dst_dev_type = STEDMA40_DEV_DST_MEMORY, |
| 189 | .src_info.data_width = STEDMA40_WORD_WIDTH, |
| 190 | .dst_info.data_width = STEDMA40_WORD_WIDTH, |
| 191 | }; |
| 192 | |
| 193 | static struct stedma40_chan_cfg mop500_sdi4_dma_cfg_tx = { |
| 194 | .mode = STEDMA40_MODE_LOGICAL, |
| 195 | .dir = STEDMA40_MEM_TO_PERIPH, |
| 196 | .src_dev_type = STEDMA40_DEV_SRC_MEMORY, |
| 197 | .dst_dev_type = DB8500_DMA_DEV42_SD_MM4_TX, |
| 198 | .src_info.data_width = STEDMA40_WORD_WIDTH, |
| 199 | .dst_info.data_width = STEDMA40_WORD_WIDTH, |
| 200 | }; |
| 201 | #endif |
| 202 | |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 203 | static struct mmci_platform_data mop500_sdi4_data = { |
| 204 | .ocr_mask = MMC_VDD_29_30, |
| 205 | .f_max = 100000000, |
| 206 | .capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA | |
| 207 | MMC_CAP_MMC_HIGHSPEED, |
| 208 | .gpio_cd = -1, |
| 209 | .gpio_wp = -1, |
Linus Walleij | 5d7b846 | 2010-10-14 13:57:59 +0200 | [diff] [blame^] | 210 | #ifdef CONFIG_STE_DMA40 |
| 211 | .dma_filter = stedma40_filter, |
| 212 | .dma_rx_param = &mop500_sdi4_dma_cfg_rx, |
| 213 | .dma_tx_param = &mop500_sdi4_dma_cfg_tx, |
| 214 | #endif |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 215 | }; |
| 216 | |
Linus Walleij | edaa86a | 2010-12-02 12:05:18 +0100 | [diff] [blame] | 217 | void __init mop500_sdi_init(void) |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 218 | { |
| 219 | nmk_config_pins(mop500_sdi_pins, ARRAY_SIZE(mop500_sdi_pins)); |
| 220 | |
Linus Walleij | edaa86a | 2010-12-02 12:05:18 +0100 | [diff] [blame] | 221 | /* |
| 222 | * sdi0 will finally be added when the TC35892 initializes and calls |
| 223 | * mop500_sdi_tc35892_init() above. |
| 224 | */ |
| 225 | |
| 226 | /* PoP:ed eMMC */ |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 227 | if (!cpu_is_u8500ed()) { |
| 228 | nmk_config_pins(mop500_sdi2_pins, ARRAY_SIZE(mop500_sdi2_pins)); |
Linus Walleij | edaa86a | 2010-12-02 12:05:18 +0100 | [diff] [blame] | 229 | /* POP eMMC on v1.0 has problems with high speed */ |
| 230 | if (!cpu_is_u8500v10()) |
| 231 | mop500_sdi2_data.capabilities |= MMC_CAP_MMC_HIGHSPEED; |
Rabin Vincent | fbf1eadf | 2010-09-29 19:46:32 +0530 | [diff] [blame] | 232 | db8500_add_sdi2(&mop500_sdi2_data); |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | /* On-board eMMC */ |
Rabin Vincent | fbf1eadf | 2010-09-29 19:46:32 +0530 | [diff] [blame] | 236 | db8500_add_sdi4(&mop500_sdi4_data); |
Hanumath Prasad | 008f8a2 | 2010-08-19 12:06:32 +0100 | [diff] [blame] | 237 | } |