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/Kconfig b/arch/arm/mach-exynos4/Kconfig
index 0cdb1fd..b735705 100644 (file)
--- a/arch/arm/mach-exynos4/Kconfig
+++ b/arch/arm/mach-exynos4/Kconfig
@@ -36,6 +36,11 @@ config EXYNOS4_DEV_SYSMMU
        help
          Common setup code for SYSTEM MMU in EXYNOS4
 
+config EXYNOS4_DEV_DWMCI
+       bool
+       help
+         Compile in platform device definitions for DWMCI
+
 config EXYNOS4_SETUP_I2C1
        bool
        help

diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile
index c8e880e..2a0b682 100644 (file)
--- a/arch/arm/mach-exynos4/Makefile
+++ b/arch/arm/mach-exynos4/Makefile
@@ -38,6 +38,7 @@ obj-y                                 += dev-audio.o
 obj-$(CONFIG_EXYNOS4_DEV_AHCI)         += dev-ahci.o
 obj-$(CONFIG_EXYNOS4_DEV_PD)           += dev-pd.o
 obj-$(CONFIG_EXYNOS4_DEV_SYSMMU)       += dev-sysmmu.o
+obj-$(CONFIG_EXYNOS4_DEV_DWMCI)        += dev-dwmci.o
 
 obj-$(CONFIG_EXYNOS4_SETUP_FIMC)       += setup-fimc.o
 obj-$(CONFIG_EXYNOS4_SETUP_I2C1)       += setup-i2c1.o

diff --git a/arch/arm/mach-exynos4/dev-dwmci.c b/arch/arm/mach-exynos4/dev-dwmci.c
new file mode 100644 (file)
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;
+}

diff --git a/arch/arm/mach-exynos4/include/mach/dwmci.h b/arch/arm/mach-exynos4/include/mach/dwmci.h
new file mode 100644 (file)
index 0000000..7ce6574
--- /dev/null
+++ b/arch/arm/mach-exynos4/include/mach/dwmci.h
@@ -0,0 +1,20 @@
+/* linux/arch/arm/mach-exynos4/include/mach/dwmci.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com/
+ *
+ * Synopsys DesignWare Mobile Storage for EXYNOS4210
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARM_ARCH_DWMCI_H
+#define __ASM_ARM_ARCH_DWMCI_H __FILE__
+
+#include <linux/mmc/dw_mmc.h>
+
+extern void exynos4_dwmci_set_platdata(struct dw_mci_board *pd);
+
+#endif /* __ASM_ARM_ARCH_DWMCI_H */

diff --git a/arch/arm/mach-exynos4/include/mach/irqs.h b/arch/arm/mach-exynos4/include/mach/irqs.h
index 51b5db5..e2995be 100644 (file)
--- a/arch/arm/mach-exynos4/include/mach/irqs.h
+++ b/arch/arm/mach-exynos4/include/mach/irqs.h
@@ -78,6 +78,7 @@
 #define IRQ_HSMMC1             IRQ_SPI(74)
 #define IRQ_HSMMC2             IRQ_SPI(75)
 #define IRQ_HSMMC3             IRQ_SPI(76)
+#define IRQ_DWMCI              IRQ_SPI(77)
 
 #define IRQ_MIPICSI0           IRQ_SPI(78)
 

diff --git a/arch/arm/mach-exynos4/include/mach/map.h b/arch/arm/mach-exynos4/include/mach/map.h
index 0e0016f..0aa77fb 100644 (file)
--- a/arch/arm/mach-exynos4/include/mach/map.h
+++ b/arch/arm/mach-exynos4/include/mach/map.h
@@ -96,6 +96,7 @@
 #define EXYNOS4_PA_MIPI_CSIS1          0x11890000
 
 #define EXYNOS4_PA_HSMMC(x)            (0x12510000 + ((x) * 0x10000))
+#define EXYNOS4_PA_DWMCI               0x12550000
 
 #define EXYNOS4_PA_SATA                        0x12560000
 #define EXYNOS4_PA_SATAPHY             0x125D0000

diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index e3b31c2..29fa1cf 100644 (file)
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -112,6 +112,7 @@ extern struct platform_device exynos4_device_i2s2;
 extern struct platform_device exynos4_device_spdif;
 extern struct platform_device exynos4_device_pd[];
 extern struct platform_device exynos4_device_ahci;
+extern struct platform_device exynos4_device_dwmci;
 
 extern struct platform_device s5p6440_device_pcm;
 extern struct platform_device s5p6440_device_iis;