diff options
author | Arnd Bergmann <arnd@arndb.de> | 2011-07-21 16:34:00 +0200 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2011-07-21 16:34:00 +0200 |
commit | 1e09939bad24df95ddeeeca4fbec64fa94b66def (patch) | |
tree | 8a4661ed8c4619db28863353858e0171171b7d8a /arch/arm/mach-exynos4/dev-dwmci.c | |
parent | 4d09a938861ef16248334d57ae250e109b0004ae (diff) | |
parent | e8de616e39ccea3b8d3cf7e68f16d216f183c4bf (diff) |
Merge branch 'next-samsung-devel' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/devel
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 @@ +/* + * linux/arch/arm/mach-exynos4/dev-dwmci.c + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Platform device for Synopsys DesignWare Mobile Storage IP + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/platform_device.h> +#include <linux/interrupt.h> +#include <linux/mmc/dw_mmc.h> + +#include <plat/devs.h> + +#include <mach/map.h> + +static int exynos4_dwmci_get_bus_wd(u32 slot_id) +{ + return 4; +} + +static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data) +{ + return 0; +} + +static struct resource exynos4_dwmci_resource[] = { + [0] = { + .start = EXYNOS4_PA_DWMCI, + .end = EXYNOS4_PA_DWMCI + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_DWMCI, + .end = IRQ_DWMCI, + .flags = IORESOURCE_IRQ, + } +}; + +static struct dw_mci_board exynos4_dwci_pdata = { + .num_slots = 1, + .quirks = DW_MCI_QUIRK_BROKEN_CARD_DETECTION, + .bus_hz = 80 * 1000 * 1000, + .detect_delay_ms = 200, + .init = exynos4_dwmci_init, + .get_bus_wd = exynos4_dwmci_get_bus_wd, +}; + +static u64 exynos4_dwmci_dmamask = DMA_BIT_MASK(32); + +struct platform_device exynos4_device_dwmci = { + .name = "dw_mmc", + .id = -1, + .num_resources = ARRAY_SIZE(exynos4_dwmci_resource), + .resource = exynos4_dwmci_resource, + .dev = { + .dma_mask = &exynos4_dwmci_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &exynos4_dwci_pdata, + }, +}; + +void __init exynos4_dwmci_set_platdata(struct dw_mci_board *pd) +{ + struct dw_mci_board *npd; + + npd = s3c_set_platdata(pd, sizeof(struct dw_mci_board), + &exynos4_device_dwmci); + + if (!npd->init) + npd->init = exynos4_dwmci_init; + if (!npd->get_bus_wd) + npd->get_bus_wd = exynos4_dwmci_get_bus_wd; +} |