mfd: omap-usb-tll: Add OMAP5 revision and HSIC support

The TLL module on OMAP5 has 3 channels.
HSIC mode requires the TLL channel to be in Transparent UTMI mode.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index 55c85c78ba44..0aef1a768880 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -54,10 +54,13 @@
 
 #define OMAP_TLL_CHANNEL_CONF(num)                      (0x040 + 0x004 * num)
 #define OMAP_TLL_CHANNEL_CONF_FSLSMODE_SHIFT            24
+#define OMAP_TLL_CHANNEL_CONF_DRVVBUS                   (1 << 16)
+#define OMAP_TLL_CHANNEL_CONF_CHRGVBUS                  (1 << 15)
 #define OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF            (1 << 11)
 #define OMAP_TLL_CHANNEL_CONF_ULPI_ULPIAUTOIDLE         (1 << 10)
 #define OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE              (1 << 9)
 #define OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE               (1 << 8)
+#define OMAP_TLL_CHANNEL_CONF_MODE_TRANSPARENT_UTMI     (2 << 1)
 #define OMAP_TLL_CHANNEL_CONF_CHANMODE_FSLS             (1 << 1)
 #define OMAP_TLL_CHANNEL_CONF_CHANEN                    (1 << 0)
 
@@ -92,6 +95,7 @@
 #define OMAP_USBTLL_REV1                0x00000015      /* OMAP3 */
 #define OMAP_USBTLL_REV2                0x00000018      /* OMAP 3630 */
 #define OMAP_USBTLL_REV3                0x00000004      /* OMAP4 */
+#define OMAP_USBTLL_REV4                0x00000006      /* OMAP5 */
 
 #define is_ehci_tll_mode(x)     (x == OMAP_EHCI_PORT_MODE_TLL)
 
@@ -245,6 +249,7 @@ static int usbtll_omap_probe(struct platform_device *pdev)
         ver =  usbtll_read(base, OMAP_USBTLL_REVISION);
         switch (ver) {
         case OMAP_USBTLL_REV1:
+        case OMAP_USBTLL_REV4:
                 tll->nch = OMAP_TLL_CHANNEL_COUNT;
                 break;
         case OMAP_USBTLL_REV2:
@@ -310,6 +315,15 @@ static int usbtll_omap_probe(struct platform_device *pdev)
                                 reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE
                                         | OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
                                         | OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE);
+                        } else if (pdata->port_mode[i] ==
+                                        OMAP_EHCI_PORT_MODE_HSIC) {
+                                /*
+                                 * HSIC Mode requires UTMI port configurations
+                                 */
+                                reg |= OMAP_TLL_CHANNEL_CONF_DRVVBUS
+                                 | OMAP_TLL_CHANNEL_CONF_CHRGVBUS
+                                 | OMAP_TLL_CHANNEL_CONF_MODE_TRANSPARENT_UTMI
+                                 | OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF;
                         } else {
                                 continue;
                         }