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
11 #include <plat/pincfg.h>
12 #include <plat/gpio-nomadik.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
u5500_sdi_init(void)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 }
75