1/* 2 * linux/arch/arm/mach-exynos4/dev-dwmci.c 3 * 4 * Copyright (c) 2011 Samsung Electronics Co., Ltd. 5 * http://www.samsung.com 6 * 7 * Platform device for Synopsys DesignWare Mobile Storage IP 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 */ 14 15#include <linux/kernel.h> 16#include <linux/dma-mapping.h> 17#include <linux/platform_device.h> 18#include <linux/interrupt.h> 19#include <linux/ioport.h> 20#include <linux/mmc/dw_mmc.h> 21 22#include <plat/devs.h> 23 24#include <mach/map.h> 25 26static int exynos4_dwmci_get_bus_wd(u32 slot_id) 27{ 28 return 4; 29} 30 31static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data) 32{ 33 return 0; 34} 35 36static struct resource exynos4_dwmci_resource[] = { 37 [0] = DEFINE_RES_MEM(EXYNOS4_PA_DWMCI, SZ_4K), 38 [1] = DEFINE_RES_IRQ(EXYNOS4_IRQ_DWMCI), 39}; 40 41static struct dw_mci_board exynos4_dwci_pdata = { 42 .num_slots = 1, 43 .quirks = DW_MCI_QUIRK_BROKEN_CARD_DETECTION, 44 .bus_hz = 80 * 1000 * 1000, 45 .detect_delay_ms = 200, 46 .init = exynos4_dwmci_init, 47 .get_bus_wd = exynos4_dwmci_get_bus_wd, 48}; 49 50static u64 exynos4_dwmci_dmamask = DMA_BIT_MASK(32); 51 52struct platform_device exynos4_device_dwmci = { 53 .name = "dw_mmc", 54 .id = -1, 55 .num_resources = ARRAY_SIZE(exynos4_dwmci_resource), 56 .resource = exynos4_dwmci_resource, 57 .dev = { 58 .dma_mask = &exynos4_dwmci_dmamask, 59 .coherent_dma_mask = DMA_BIT_MASK(32), 60 .platform_data = &exynos4_dwci_pdata, 61 }, 62}; 63 64void __init exynos4_dwmci_set_platdata(struct dw_mci_board *pd) 65{ 66 struct dw_mci_board *npd; 67 68 npd = s3c_set_platdata(pd, sizeof(struct dw_mci_board), 69 &exynos4_device_dwmci); 70 71 if (!npd->init) 72 npd->init = exynos4_dwmci_init; 73 if (!npd->get_bus_wd) 74 npd->get_bus_wd = exynos4_dwmci_get_bus_wd; 75} 76