This patch adds mux-mode settings for EHCI pads on OMAP4.
This is a hack for now,
This code be replaced when the mux framework is introduced for OMAP4.
Signed-off-by: Keshava Munegowda <keshava_mgowda@xxxxxx>
Signed-off-by: Anand Gadiyar <gadiyar@xxxxxx>
---
arch/arm/mach-omap2/usb-ehci.c | 109 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 109 insertions(+)
Index: linux-2.6/arch/arm/mach-omap2/usb-ehci.c
===================================================================
--- linux-2.6.orig/arch/arm/mach-omap2/usb-ehci.c
+++ linux-2.6/arch/arm/mach-omap2/usb-ehci.c
@@ -214,6 +214,115 @@ static void setup_ehci_io_mux(const enum
return;
}
+static void setup_4430ehci_io_mux(const enum ehci_hcd_omap_mode *port_mode)
+{
+ /*
+ * FIXME: This funtion should use mux framework functions;
+ * For now, we are hardcoding this.
+ */
+ switch (port_mode[0]) {
+ case EHCI_HCD_OMAP_MODE_PHY:
+
+ /* HUSB1_PHY CLK , INPUT ENABLED, PULLDOWN */
+ omap_writew(0x010C, 0x4A1000C2);
+
+ /* HUSB1 STP */
+ omap_writew(0x0004, 0x4A1000C4);
+
+ /* HUSB1_DIR */
+ omap_writew(0x010C, 0x4A1000C6);
+
+ /* HUSB1_NXT */
+ omap_writew(0x010C, 0x4A1000C8);
+
+ /* HUSB1_DATA0 */
+ omap_writew(0x010C, 0x4A1000CA);
+
+ /* HUSB1_DATA1 */
+ omap_writew(0x010C, 0x4A1000CC);
+
+ /* HUSB1_DATA2 */
+ omap_writew(0x010C, 0x4A1000CE);
+
+ /* HUSB1_DATA3 */
+ omap_writew(0x010C, 0x4A1000D0);
+
+ /* HUSB1_DATA4 */
+ omap_writew(0x010C, 0x4A1000D2);
+
+ /* HUSB1_DATA5 */
+ omap_writew(0x010C, 0x4A1000D4);
+
+ /* HUSB1_DATA6 */
+ omap_writew(0x010C, 0x4A1000D6);
+
+ /* HUSB1_DATA7 */
+ omap_writew(0x010C, 0x4A1000D8);
+
+ break;
+
+ case EHCI_HCD_OMAP_MODE_TLL:
+ /* TODO */
+
+ break;
+ case EHCI_HCD_OMAP_MODE_UNKNOWN:
+ /* FALLTHROUGH */
+ default:
+ break;
+ }
+
+ switch (port_mode[1]) {
+ case EHCI_HCD_OMAP_MODE_PHY:
+ /* HUSB2_PHY CLK , INPUT PULLDOWN ENABLED */
+ omap_writew(0x010C, 0x4A100160);
+
+ /* HUSB2 STP */
+ omap_writew(0x0002, 0x4A100162);
+
+ /* HUSB2_DIR */
+ omap_writew(0x010A, 0x4A100164);
+
+ /* HUSB2_NXT */
+ omap_writew(0x010A, 0x4A100166);
+
+ /* HUSB2_DATA0 */
+ omap_writew(0x010A, 0x4A100168);
+
+ /* HUSB2_DATA1 */
+ omap_writew(0x010A, 0x4A10016A);
+
+ /* HUSB2_DATA2 */
+ omap_writew(0x010A, 0x4A10016C);
+
+ /* HUSB2_DATA3 */
+ omap_writew(0x010A, 0x4A10016E);
+
+ /* HUSB2_DATA4 */
+ omap_writew(0x010A, 0x4A100170);
+
+ /* HUSB2_DATA5 */
+ omap_writew(0x010A, 0x4A100172);
+
+ /* HUSB2_DATA6 */
+ omap_writew(0x010A, 0x4A100174);
+
+ /* HUSB2_DATA7 */
+ omap_writew(0x010A, 0x4A100176);
+
+ break;
+
+ case EHCI_HCD_OMAP_MODE_TLL:
+ /* TODO */
+
+ break;
+ case EHCI_HCD_OMAP_MODE_UNKNOWN:
+ /* FALLTHROUGH */
+ default:
+ break;
+ }
+ return;
+}
+
void __init usb_ehci_init(const struct ehci_hcd_omap_platform_data *pdata)
{
platform_device_add_data(&ehci_device, pdata, sizeof(*pdata));
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