arch/arm/mach-ux500/board-mop500-sdi.c

   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 #include <linux/platform_data/dma-ste-dma40.h>
  15
  16 #include <asm/mach-types.h>
  17 #include "devices.h"
  18
  19 #include "db8500-regs.h"
  20 #include "devices-db8500.h"
  21 #include "board-mop500.h"
  22 #include "ste-dma40-db8500.h"
  23
  24 /*
  25  * v2 has a new version of this block that need to be forced, the number found
  26  * in hardware is incorrect
  27  */
  28 #define U8500_SDI_V2_PERIPHID 0x10480180
  29
  30 /*
  31  * SDI 0 (MicroSD slot)
  32  */
  33
  34 #ifdef CONFIG_STE_DMA40
  35 struct stedma40_chan_cfg mop500_sdi0_dma_cfg_rx = {
  36         .mode = STEDMA40_MODE_LOGICAL,
  37         .dir = DMA_DEV_TO_MEM,
  38         .dev_type = DB8500_DMA_DEV29_SD_MM0,
  39 };
  40
  41 static struct stedma40_chan_cfg mop500_sdi0_dma_cfg_tx = {
  42         .mode = STEDMA40_MODE_LOGICAL,
  43         .dir = DMA_MEM_TO_DEV,
  44         .dev_type = DB8500_DMA_DEV29_SD_MM0,
  45 };
  46 #endif
  47
  48 struct mmci_platform_data mop500_sdi0_data = {
  49         .f_max          = 100000000,
  50         .capabilities   = MMC_CAP_4_BIT_DATA |
  51                                 MMC_CAP_SD_HIGHSPEED |
  52                                 MMC_CAP_MMC_HIGHSPEED |
  53                                 MMC_CAP_ERASE |
  54                                 MMC_CAP_UHS_SDR12 |
  55                                 MMC_CAP_UHS_SDR25,
  56         .gpio_wp        = -1,
  57         .sigdir         = MCI_ST_FBCLKEN |
  58                                 MCI_ST_CMDDIREN |
  59                                 MCI_ST_DATA0DIREN |
  60                                 MCI_ST_DATA2DIREN,
  61 #ifdef CONFIG_STE_DMA40
  62         .dma_filter     = stedma40_filter,
  63         .dma_rx_param   = &mop500_sdi0_dma_cfg_rx,
  64         .dma_tx_param   = &mop500_sdi0_dma_cfg_tx,
  65 #endif
  66 };
  67
  68 static void sdi0_configure(struct device *parent)
  69 {
  70         /* Add the device, force v2 to subrevision 1 */
  71         db8500_add_sdi0(parent, &mop500_sdi0_data, U8500_SDI_V2_PERIPHID);
  72 }
  73
  74 void mop500_sdi_tc35892_init(struct device *parent)
  75 {
  76         mop500_sdi0_data.gpio_cd = GPIO_SDMMC_CD;
  77         sdi0_configure(parent);
  78 }
  79
  80 /*
  81  * SDI1 (SDIO WLAN)
  82  */
  83 #ifdef CONFIG_STE_DMA40
  84 static struct stedma40_chan_cfg sdi1_dma_cfg_rx = {
  85         .mode = STEDMA40_MODE_LOGICAL,
  86         .dir = DMA_DEV_TO_MEM,
  87         .dev_type = DB8500_DMA_DEV32_SD_MM1,
  88 };
  89
  90 static struct stedma40_chan_cfg sdi1_dma_cfg_tx = {
  91         .mode = STEDMA40_MODE_LOGICAL,
  92         .dir = DMA_MEM_TO_DEV,
  93         .dev_type = DB8500_DMA_DEV32_SD_MM1,
  94 };
  95 #endif
  96
  97 struct mmci_platform_data mop500_sdi1_data = {
  98         .ocr_mask       = MMC_VDD_29_30,
  99         .f_max          = 100000000,
 100         .capabilities   = MMC_CAP_4_BIT_DATA |
 101                                 MMC_CAP_NONREMOVABLE,
 102         .gpio_cd        = -1,
 103         .gpio_wp        = -1,
 104 #ifdef CONFIG_STE_DMA40
 105         .dma_filter     = stedma40_filter,
 106         .dma_rx_param   = &sdi1_dma_cfg_rx,
 107         .dma_tx_param   = &sdi1_dma_cfg_tx,
 108 #endif
 109 };
 110
 111 /*
 112  * SDI 2 (POP eMMC, not on DB8500ed)
 113  */
 114
 115 #ifdef CONFIG_STE_DMA40
 116 struct stedma40_chan_cfg mop500_sdi2_dma_cfg_rx = {
 117         .mode = STEDMA40_MODE_LOGICAL,
 118         .dir = DMA_DEV_TO_MEM,
 119         .dev_type =  DB8500_DMA_DEV28_SD_MM2,
 120 };
 121
 122 static struct stedma40_chan_cfg mop500_sdi2_dma_cfg_tx = {
 123         .mode = STEDMA40_MODE_LOGICAL,
 124         .dir = DMA_MEM_TO_DEV,
 125         .dev_type = DB8500_DMA_DEV28_SD_MM2,
 126 };
 127 #endif
 128
 129 struct mmci_platform_data mop500_sdi2_data = {
 130         .ocr_mask       = MMC_VDD_165_195,
 131         .f_max          = 100000000,
 132         .capabilities   = MMC_CAP_4_BIT_DATA |
 133                                 MMC_CAP_8_BIT_DATA |
 134                                 MMC_CAP_NONREMOVABLE |
 135                                 MMC_CAP_MMC_HIGHSPEED |
 136                                 MMC_CAP_ERASE |
 137                                 MMC_CAP_CMD23,
 138         .gpio_cd        = -1,
 139         .gpio_wp        = -1,
 140 #ifdef CONFIG_STE_DMA40
 141         .dma_filter     = stedma40_filter,
 142         .dma_rx_param   = &mop500_sdi2_dma_cfg_rx,
 143         .dma_tx_param   = &mop500_sdi2_dma_cfg_tx,
 144 #endif
 145 };
 146
 147 /*
 148  * SDI 4 (on-board eMMC)
 149  */
 150
 151 #ifdef CONFIG_STE_DMA40
 152 struct stedma40_chan_cfg mop500_sdi4_dma_cfg_rx = {
 153         .mode = STEDMA40_MODE_LOGICAL,
 154         .dir = DMA_DEV_TO_MEM,
 155         .dev_type =  DB8500_DMA_DEV42_SD_MM4,
 156 };
 157
 158 static struct stedma40_chan_cfg mop500_sdi4_dma_cfg_tx = {
 159         .mode = STEDMA40_MODE_LOGICAL,
 160         .dir = DMA_MEM_TO_DEV,
 161         .dev_type = DB8500_DMA_DEV42_SD_MM4,
 162 };
 163 #endif
 164
 165 struct mmci_platform_data mop500_sdi4_data = {
 166         .f_max          = 100000000,
 167         .capabilities   = MMC_CAP_4_BIT_DATA |
 168                                 MMC_CAP_8_BIT_DATA |
 169                                 MMC_CAP_NONREMOVABLE |
 170                                 MMC_CAP_MMC_HIGHSPEED |
 171                                 MMC_CAP_ERASE |
 172                                 MMC_CAP_CMD23,
 173         .gpio_cd        = -1,
 174         .gpio_wp        = -1,
 175 #ifdef CONFIG_STE_DMA40
 176         .dma_filter     = stedma40_filter,
 177         .dma_rx_param   = &mop500_sdi4_dma_cfg_rx,
 178         .dma_tx_param   = &mop500_sdi4_dma_cfg_tx,
 179 #endif
 180 };
 181
 182 void __init mop500_sdi_init(struct device *parent)
 183 {
 184         /* PoP:ed eMMC */
 185         db8500_add_sdi2(parent, &mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
 186         /* On-board eMMC */
 187         db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
 188
 189         /*
 190          * On boards with the TC35892 GPIO expander, sdi0 will finally
 191          * be added when the TC35892 initializes and calls
 192          * mop500_sdi_tc35892_init() above.
 193          */
 194 }
 195
 196 void __init snowball_sdi_init(struct device *parent)
 197 {
 198         /* On Snowball MMC_CAP_SD_HIGHSPEED isn't supported (Hardware issue?) */
 199         mop500_sdi0_data.capabilities &= ~MMC_CAP_SD_HIGHSPEED;
 200         /* On-board eMMC */
 201         db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
 202         /* External Micro SD slot */
 203         mop500_sdi0_data.gpio_cd = SNOWBALL_SDMMC_CD_GPIO;
 204         mop500_sdi0_data.cd_invert = true;
 205         sdi0_configure(parent);
 206 }
 207
 208 void __init hrefv60_sdi_init(struct device *parent)
 209 {
 210         /* PoP:ed eMMC */
 211         db8500_add_sdi2(parent, &mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
 212         /* On-board eMMC */
 213         db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
 214         /* External Micro SD slot */
 215         mop500_sdi0_data.gpio_cd = HREFV60_SDMMC_CD_GPIO;
 216         sdi0_configure(parent);
 217         /* WLAN SDIO channel */
 218         db8500_add_sdi1(parent, &mop500_sdi1_data, U8500_SDI_V2_PERIPHID);
 219 }