ARM: S5PC1xx: add platform helpers for SDHCI host controllers

Samsung S5PC100 has 3 SDHCI controllers compatible with the one known from
previous SoCs series. Add required platform setup and support code that
the devices can be used with sdhci-s3c driver.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 65 insertions, 0 deletions

diff --git a/arch/arm/plat-s3c/dev-hsmmc2.c b/arch/arm/plat-s3c/dev-hsmmc2.c
new file mode 100644
index 000000000000..082e55a78ad7
--- /dev/null
+++ b/arch/arm/plat-s3c/dev-hsmmc2.c
@@ -0,0 +1,65 @@
+/* linux/arch/arm/plat-s3c/dev-hsmmc2.c
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ *
+ * S3C series device definition for hsmmc device 2
+ *
+ * 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.
+*/
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/mmc/host.h>
+
+#include <mach/map.h>
+#include <plat/sdhci.h>
+#include <plat/devs.h>
+
+#define S3C_SZ_HSMMC    (0x1000)
+
+static struct resource s3c_hsmmc2_resource[] = {
+        [0] = {
+                .start = S3C_PA_HSMMC2,
+                .end   = S3C_PA_HSMMC2 + S3C_SZ_HSMMC - 1,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = IRQ_HSMMC2,
+                .end   = IRQ_HSMMC2,
+                .flags = IORESOURCE_IRQ,
+        }
+};
+
+static u64 s3c_device_hsmmc2_dmamask = 0xffffffffUL;
+
+struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata = {
+        .max_width      = 4,
+        .host_caps      = (MMC_CAP_4_BIT_DATA |
+                           MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
+};
+
+struct platform_device s3c_device_hsmmc2 = {
+        .name           = "s3c-sdhci",
+        .id             = 2,
+        .num_resources  = ARRAY_SIZE(s3c_hsmmc2_resource),
+        .resource       = s3c_hsmmc2_resource,
+        .dev            = {
+                .dma_mask               = &s3c_device_hsmmc2_dmamask,
+                .coherent_dma_mask      = 0xffffffffUL,
+                .platform_data          = &s3c_hsmmc2_def_platdata,
+        },
+};
+
+void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd)
+{
+        struct s3c_sdhci_platdata *set = &s3c_hsmmc2_def_platdata;
+
+        set->max_width = pd->max_width;
+
+        if (pd->cfg_gpio)
+                set->cfg_gpio = pd->cfg_gpio;
+        if (pd->cfg_card)
+                set->cfg_card = pd->cfg_card;
+}