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
20static 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
35struct 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
44static 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
54static 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
69void __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}