]> Pileus Git - ~andy/linux/blob - arch/arm/mach-exynos/dev-dwmci.c
Merge branch 'tpmdd-next-v3.6' of git://github.com/shpedoikal/linux into for-linus
[~andy/linux] / arch / arm / mach-exynos / dev-dwmci.c
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
26 static int exynos4_dwmci_get_bus_wd(u32 slot_id)
27 {
28         return 4;
29 }
30
31 static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data)
32 {
33         return 0;
34 }
35
36 static 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
41 static 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
50 static u64 exynos4_dwmci_dmamask = DMA_BIT_MASK(32);
51
52 struct 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
64 void __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 }