Added missing tegra files.HEADmaster

1 files changed, 68 insertions, 0 deletions

diff --git a/arch/arm/mach-u300/mmc.c b/arch/arm/mach-u300/mmc.c
new file mode 100644
index 00000000000..677ccef5cd3
--- /dev/null
+++ b/arch/arm/mach-u300/mmc.c
@@ -0,0 +1,68 @@
+/*
+ *
+ * arch/arm/mach-u300/mmc.c
+ *
+ *
+ * Copyright (C) 2009 ST-Ericsson SA
+ * License terms: GNU General Public License (GPL) version 2
+ *
+ * Author: Linus Walleij <linus.walleij@stericsson.com>
+ * Author: Johan Lundin
+ * Author: Jonas Aaberg <jonas.aberg@stericsson.com>
+ */
+#include <linux/device.h>
+#include <linux/amba/bus.h>
+#include <linux/mmc/host.h>
+#include <linux/gpio.h>
+#include <linux/dmaengine.h>
+#include <linux/amba/mmci.h>
+#include <linux/slab.h>
+#include <mach/coh901318.h>
+#include <mach/dma_channels.h>
+
+#include "mmc.h"
+#include "padmux.h"
+
+static struct mmci_platform_data mmc0_plat_data = {
+        /*
+         * Do not set ocr_mask or voltage translation function,
+         * we have a regulator we can control instead.
+         */
+        /* Nominally 2.85V on our platform */
+        .f_max = 24000000,
+        .gpio_wp = -1,
+        .gpio_cd = U300_GPIO_PIN_MMC_CD,
+        .cd_invert = true,
+        .capabilities = MMC_CAP_MMC_HIGHSPEED |
+        MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
+#ifdef CONFIG_COH901318
+        .dma_filter = coh901318_filter_id,
+        .dma_rx_param = (void *) U300_DMA_MMCSD_RX_TX,
+        /* Don't specify a TX channel, this RX channel is bidirectional */
+#endif
+};
+
+int __devinit mmc_init(struct amba_device *adev)
+{
+        struct device *mmcsd_device = &adev->dev;
+        struct pmx *pmx;
+        int ret = 0;
+
+        mmcsd_device->platform_data = &mmc0_plat_data;
+
+        /*
+         * Setup padmuxing for MMC. Since this must always be
+         * compiled into the kernel, pmx is never released.
+         */
+        pmx = pmx_get(mmcsd_device, U300_APP_PMX_MMC_SETTING);
+
+        if (IS_ERR(pmx))
+                pr_warning("Could not get padmux handle\n");
+        else {
+                ret = pmx_activate(mmcsd_device, pmx);
+                if (IS_ERR_VALUE(ret))
+                        pr_warning("Could not activate padmuxing\n");
+        }
+
+        return ret;
+}