diff options
| author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
|---|---|---|
| committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
| commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
| tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /arch/arm/mach-exynos4/dev-dwmci.c | |
| parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) | |
Diffstat (limited to 'arch/arm/mach-exynos4/dev-dwmci.c')
| -rw-r--r-- | arch/arm/mach-exynos4/dev-dwmci.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/dev-dwmci.c b/arch/arm/mach-exynos4/dev-dwmci.c new file mode 100644 index 00000000000..b025db4bf60 --- /dev/null +++ b/arch/arm/mach-exynos4/dev-dwmci.c | |||
| @@ -0,0 +1,82 @@ | |||
| 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 | } | ||
