| Seungwon Jeon | d791958 | 2011-07-21 00:34:58 +0900 | [diff] [blame] | 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/mmc/dw_mmc.h> |
| 20 | |
| 21 | #include <plat/devs.h> |
| 22 | |
| 23 | #include <mach/map.h> |
| 24 | |
| 25 | static int exynos4_dwmci_get_bus_wd(u32 slot_id) |
| 26 | { |
| 27 | return 4; |
| 28 | } |
| 29 | |
| 30 | static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data) |
| 31 | { |
| 32 | return 0; |
| 33 | } |
| 34 | |
| 35 | static struct resource exynos4_dwmci_resource[] = { |
| 36 | [0] = { |
| 37 | .start = EXYNOS4_PA_DWMCI, |
| 38 | .end = EXYNOS4_PA_DWMCI + SZ_4K - 1, |
| 39 | .flags = IORESOURCE_MEM, |
| 40 | }, |
| 41 | [1] = { |
| 42 | .start = IRQ_DWMCI, |
| 43 | .end = IRQ_DWMCI, |
| 44 | .flags = IORESOURCE_IRQ, |
| 45 | } |
| 46 | }; |
| 47 | |
| 48 | static struct dw_mci_board exynos4_dwci_pdata = { |
| 49 | .num_slots = 1, |
| 50 | .quirks = DW_MCI_QUIRK_BROKEN_CARD_DETECTION, |
| 51 | .bus_hz = 80 * 1000 * 1000, |
| 52 | .detect_delay_ms = 200, |
| 53 | .init = exynos4_dwmci_init, |
| 54 | .get_bus_wd = exynos4_dwmci_get_bus_wd, |
| 55 | }; |
| 56 | |
| 57 | static u64 exynos4_dwmci_dmamask = DMA_BIT_MASK(32); |
| 58 | |
| 59 | struct platform_device exynos4_device_dwmci = { |
| 60 | .name = "dw_mmc", |
| 61 | .id = -1, |
| 62 | .num_resources = ARRAY_SIZE(exynos4_dwmci_resource), |
| 63 | .resource = exynos4_dwmci_resource, |
| 64 | .dev = { |
| 65 | .dma_mask = &exynos4_dwmci_dmamask, |
| 66 | .coherent_dma_mask = DMA_BIT_MASK(32), |
| 67 | .platform_data = &exynos4_dwci_pdata, |
| 68 | }, |
| 69 | }; |
| 70 | |
| 71 | void __init exynos4_dwmci_set_platdata(struct dw_mci_board *pd) |
| 72 | { |
| 73 | struct dw_mci_board *npd; |
| 74 | |
| 75 | npd = s3c_set_platdata(pd, sizeof(struct dw_mci_board), |
| 76 | &exynos4_device_dwmci); |
| 77 | |
| 78 | if (!npd->init) |
| 79 | npd->init = exynos4_dwmci_init; |
| 80 | if (!npd->get_bus_wd) |
| 81 | npd->get_bus_wd = exynos4_dwmci_get_bus_wd; |
| 82 | } |