mfd: add OHCI cell to tc6393xb

Add information regarding OHCI cell of the tc6393xb

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

1 files changed, 87 insertions, 0 deletions

diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index c3c64aeeb12a..6197db7d4859 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -113,6 +113,7 @@ struct tc6393xb {
 enum {
         TC6393XB_CELL_NAND,
         TC6393XB_CELL_MMC,
+        TC6393XB_CELL_OHCI,
 };
 
 /*--------------------------------------------------------------------------*/
@@ -170,6 +171,78 @@ static struct resource __devinitdata tc6393xb_mmc_resources[] = {
         },
 };
 
+const static struct resource tc6393xb_ohci_resources[] = {
+        {
+                .start  = 0x3000,
+                .end    = 0x31ff,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = 0x0300,
+                .end    = 0x03ff,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = 0x010000,
+                .end    = 0x017fff,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = 0x018000,
+                .end    = 0x01ffff,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = IRQ_TC6393_OHCI,
+                .end    = IRQ_TC6393_OHCI,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static int tc6393xb_ohci_enable(struct platform_device *dev)
+{
+        struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent);
+        unsigned long flags;
+        u16 ccr;
+        u8 fer;
+
+        spin_lock_irqsave(&tc6393xb->lock, flags);
+
+        ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR);
+        ccr |= SCR_CCR_USBCK;
+        tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR);
+
+        fer = tmio_ioread8(tc6393xb->scr + SCR_FER);
+        fer |= SCR_FER_USBEN;
+        tmio_iowrite8(fer, tc6393xb->scr + SCR_FER);
+
+        spin_unlock_irqrestore(&tc6393xb->lock, flags);
+
+        return 0;
+}
+
+static int tc6393xb_ohci_disable(struct platform_device *dev)
+{
+        struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent);
+        unsigned long flags;
+        u16 ccr;
+        u8 fer;
+
+        spin_lock_irqsave(&tc6393xb->lock, flags);
+
+        fer = tmio_ioread8(tc6393xb->scr + SCR_FER);
+        fer &= ~SCR_FER_USBEN;
+        tmio_iowrite8(fer, tc6393xb->scr + SCR_FER);
+
+        ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR);
+        ccr &= ~SCR_CCR_USBCK;
+        tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR);
+
+        spin_unlock_irqrestore(&tc6393xb->lock, flags);
+
+        return 0;
+}
+
 static struct mfd_cell __devinitdata tc6393xb_cells[] = {
         [TC6393XB_CELL_NAND] = {
                 .name = "tmio-nand",
@@ -182,6 +255,15 @@ static struct mfd_cell __devinitdata tc6393xb_cells[] = {
                 .num_resources = ARRAY_SIZE(tc6393xb_mmc_resources),
                 .resources = tc6393xb_mmc_resources,
         },
+        [TC6393XB_CELL_OHCI] = {
+                .name = "tmio-ohci",
+                .num_resources = ARRAY_SIZE(tc6393xb_ohci_resources),
+                .resources = tc6393xb_ohci_resources,
+                .enable = tc6393xb_ohci_enable,
+                .suspend = tc6393xb_ohci_disable,
+                .resume = tc6393xb_ohci_enable,
+                .disable = tc6393xb_ohci_disable,
+        },
 };
 
 /*--------------------------------------------------------------------------*/
@@ -470,6 +552,11 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
         tc6393xb_cells[TC6393XB_CELL_MMC].data_size =
                 sizeof(tc6393xb_cells[TC6393XB_CELL_MMC]);
 
+        tc6393xb_cells[TC6393XB_CELL_OHCI].platform_data =
+                &tc6393xb_cells[TC6393XB_CELL_OHCI];
+        tc6393xb_cells[TC6393XB_CELL_OHCI].data_size =
+                sizeof(tc6393xb_cells[TC6393XB_CELL_OHCI]);
+
 
         ret = mfd_add_devices(&dev->dev, dev->id,
                         tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells),