arch/arm/mach-ux500/board-u5500-sdi.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * Author: Hanumath Prasad <ulf.hansson@stericsson.com>
   5  * License terms: GNU General Public License (GPL) version 2
   6  */
   7
   8 #include <linux/amba/mmci.h>
   9 #include <linux/mmc/host.h>
  10 #include <linux/gpio.h>
  11
  12 #include <plat/pincfg.h>
  13 #include <mach/db5500-regs.h>
  14 #include <plat/ste_dma40.h>
  15
  16 #include "pins-db5500.h"
  17 #include "devices-db5500.h"
  18 #include "ste-dma40-db5500.h"
  19
  20 static pin_cfg_t u5500_sdi_pins[] = {
  21         /* SDI0 (POP eMMC) */
  22         GPIO5_MC0_DAT0          | PIN_DIR_INPUT | PIN_PULL_UP,
  23         GPIO6_MC0_DAT1          | PIN_DIR_INPUT | PIN_PULL_UP,
  24         GPIO7_MC0_DAT2          | PIN_DIR_INPUT | PIN_PULL_UP,
  25         GPIO8_MC0_DAT3          | PIN_DIR_INPUT | PIN_PULL_UP,
  26         GPIO9_MC0_DAT4          | PIN_DIR_INPUT | PIN_PULL_UP,
  27         GPIO10_MC0_DAT5         | PIN_DIR_INPUT | PIN_PULL_UP,
  28         GPIO11_MC0_DAT6         | PIN_DIR_INPUT | PIN_PULL_UP,
  29         GPIO12_MC0_DAT7         | PIN_DIR_INPUT | PIN_PULL_UP,
  30         GPIO13_MC0_CMD          | PIN_DIR_INPUT | PIN_PULL_UP,
  31         GPIO14_MC0_CLK          | PIN_DIR_OUTPUT | PIN_VAL_LOW,
  32 };
  33
  34 #ifdef CONFIG_STE_DMA40
  35 struct stedma40_chan_cfg u5500_sdi0_dma_cfg_rx = {
  36         .mode = STEDMA40_MODE_LOGICAL,
  37         .dir = STEDMA40_PERIPH_TO_MEM,
  38         .src_dev_type = DB5500_DMA_DEV24_SDMMC0_RX,
  39         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  40         .src_info.data_width = STEDMA40_WORD_WIDTH,
  41         .dst_info.data_width = STEDMA40_WORD_WIDTH,
  42 };
  43
  44 static struct stedma40_chan_cfg u5500_sdi0_dma_cfg_tx = {
  45         .mode = STEDMA40_MODE_LOGICAL,
  46         .dir = STEDMA40_MEM_TO_PERIPH,
  47         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
  48         .dst_dev_type = DB5500_DMA_DEV24_SDMMC0_TX,
  49         .src_info.data_width = STEDMA40_WORD_WIDTH,
  50         .dst_info.data_width = STEDMA40_WORD_WIDTH,
  51 };
  52 #endif
  53
  54 static struct mmci_platform_data u5500_sdi0_data = {
  55         .ocr_mask       = MMC_VDD_165_195,
  56         .f_max          = 50000000,
  57         .capabilities   = MMC_CAP_4_BIT_DATA |
  58                                 MMC_CAP_8_BIT_DATA |
  59                                 MMC_CAP_MMC_HIGHSPEED,
  60         .gpio_cd        = -1,
  61         .gpio_wp        = -1,
  62 #ifdef CONFIG_STE_DMA40
  63         .dma_filter     = stedma40_filter,
  64         .dma_rx_param   = &u5500_sdi0_dma_cfg_rx,
  65         .dma_tx_param   = &u5500_sdi0_dma_cfg_tx,
  66 #endif
  67 };
  68
  69 void __init u5500_sdi_init(void)
  70 {
  71         nmk_config_pins(u5500_sdi_pins, ARRAY_SIZE(u5500_sdi_pins));
  72
  73         db5500_add_sdi0(&u5500_sdi0_data);
  74 }