5d7b8467e1
This will configure the platform data for the PL011, PL022 and PL180 (derivate) PrimeCells found in the Ux500 to use DMA with the generic DMA engine for DMA40. Signed-off-by: Per Forlin <per.forlin@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
|
|
* Copyright (C) ST-Ericsson SA 2010
|
|
*
|
|
* Author: Hanumath Prasad <ulf.hansson@stericsson.com>
|
|
* License terms: GNU General Public License (GPL) version 2
|
|
*/
|
|
|
|
#include <linux/amba/mmci.h>
|
|
#include <linux/mmc/host.h>
|
|
#include <linux/gpio.h>
|
|
|
|
#include <plat/pincfg.h>
|
|
#include <mach/db5500-regs.h>
|
|
#include <plat/ste_dma40.h>
|
|
|
|
#include "pins-db5500.h"
|
|
#include "devices-db5500.h"
|
|
#include "ste-dma40-db5500.h"
|
|
|
|
static pin_cfg_t u5500_sdi_pins[] = {
|
|
/* SDI0 (POP eMMC) */
|
|
GPIO5_MC0_DAT0 | PIN_DIR_INPUT | PIN_PULL_UP,
|
|
GPIO6_MC0_DAT1 | PIN_DIR_INPUT | PIN_PULL_UP,
|
|
GPIO7_MC0_DAT2 | PIN_DIR_INPUT | PIN_PULL_UP,
|
|
GPIO8_MC0_DAT3 | PIN_DIR_INPUT | PIN_PULL_UP,
|
|
GPIO9_MC0_DAT4 | PIN_DIR_INPUT | PIN_PULL_UP,
|
|
GPIO10_MC0_DAT5 | PIN_DIR_INPUT | PIN_PULL_UP,
|
|
GPIO11_MC0_DAT6 | PIN_DIR_INPUT | PIN_PULL_UP,
|
|
GPIO12_MC0_DAT7 | PIN_DIR_INPUT | PIN_PULL_UP,
|
|
GPIO13_MC0_CMD | PIN_DIR_INPUT | PIN_PULL_UP,
|
|
GPIO14_MC0_CLK | PIN_DIR_OUTPUT | PIN_VAL_LOW,
|
|
};
|
|
|
|
#ifdef CONFIG_STE_DMA40
|
|
struct stedma40_chan_cfg u5500_sdi0_dma_cfg_rx = {
|
|
.mode = STEDMA40_MODE_LOGICAL,
|
|
.dir = STEDMA40_PERIPH_TO_MEM,
|
|
.src_dev_type = DB5500_DMA_DEV24_SDMMC0_RX,
|
|
.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
|
|
.src_info.data_width = STEDMA40_WORD_WIDTH,
|
|
.dst_info.data_width = STEDMA40_WORD_WIDTH,
|
|
};
|
|
|
|
static struct stedma40_chan_cfg u5500_sdi0_dma_cfg_tx = {
|
|
.mode = STEDMA40_MODE_LOGICAL,
|
|
.dir = STEDMA40_MEM_TO_PERIPH,
|
|
.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
|
|
.dst_dev_type = DB5500_DMA_DEV24_SDMMC0_TX,
|
|
.src_info.data_width = STEDMA40_WORD_WIDTH,
|
|
.dst_info.data_width = STEDMA40_WORD_WIDTH,
|
|
};
|
|
#endif
|
|
|
|
static struct mmci_platform_data u5500_sdi0_data = {
|
|
.ocr_mask = MMC_VDD_165_195,
|
|
.f_max = 50000000,
|
|
.capabilities = MMC_CAP_4_BIT_DATA |
|
|
MMC_CAP_8_BIT_DATA |
|
|
MMC_CAP_MMC_HIGHSPEED,
|
|
.gpio_cd = -1,
|
|
.gpio_wp = -1,
|
|
#ifdef CONFIG_STE_DMA40
|
|
.dma_filter = stedma40_filter,
|
|
.dma_rx_param = &u5500_sdi0_dma_cfg_rx,
|
|
.dma_tx_param = &u5500_sdi0_dma_cfg_tx,
|
|
#endif
|
|
};
|
|
|
|
void __init u5500_sdi_init(void)
|
|
{
|
|
nmk_config_pins(u5500_sdi_pins, ARRAY_SIZE(u5500_sdi_pins));
|
|
|
|
db5500_add_sdi0(&u5500_sdi0_data);
|
|
}
|