ARM: EXYNOS4: Add platform device for dwmci driver
This patch adds platform device for Synopsys DesignWare
Multimedia Card Interface driver.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-exynos4/dev-dwmci.c b/arch/arm/mach-exynos4/dev-dwmci.c
new file mode 100644
index 0000000..b025db4
--- /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;
+}