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[3/3] usb: musb: dsps: enable phy control for am335x

Message ID 1341841690-23899-3-git-send-email-x0132156@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Damodar Santhapuri July 9, 2012, 1:48 p.m. UTC 
From: Ajay Kumar Gupta <ajay.gupta@ti.com>

Enabled the phy control logic for am335x also based on usbss
revision register.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Damodar Santhapuri <x0132156@ti.com>
---
Earlier version of this patch based on function pointer was submitted at
http://marc.info/?l=linux-usb&m=133583281512646&w=2

and was not accepted as Felipe wanted this to be done through
system conrol module driver.

 arch/arm/plat-omap/include/plat/usb.h |    1 +
 drivers/usb/musb/musb_dsps.c          |   17 +++++++++++------
 2 files changed, 12 insertions(+), 6 deletions(-)
diff mbox

Patch

diff --git a/arch/arm/plat-omap/include/plat/usb.h b/arch/arm/plat-omap/include/plat/usb.h
index c2aa4ae..6459b10 100644
--- a/arch/arm/plat-omap/include/plat/usb.h
+++ b/arch/arm/plat-omap/include/plat/usb.h
@@ -121,6 +121,7 @@  extern void am35x_set_mode(u8 musb_mode);
 /* TI81XX specific definitions */
 #define MUSB_USBSS_REV_816X	0x9
 #define MUSB_USBSS_REV_814X	0xb
+#define MUSB_USBSS_REV_33XX	0xd
 
 /* TI816X PHY controls bits */
 #define TI816X_USBPHY0_NORMAL_MODE	(1 << 0)
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index f7271c3..171352c 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -140,16 +140,21 @@  static void musb_dsps_phy_control(struct dsps_glue *glue, u8 on)
 		if (glue->usbss_rev == MUSB_USBSS_REV_816X) {
 			usbphycfg |= TI816X_USBPHY0_NORMAL_MODE;
 			usbphycfg &= ~TI816X_USBPHY_REFCLK_OSC;
-		} else if (glue->usbss_rev == MUSB_USBSS_REV_814X) {
-			usbphycfg &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN
-				| USBPHY_DPINPUT | USBPHY_DMINPUT);
-			usbphycfg |= (USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN
-				| USBPHY_DPOPBUFCTL | USBPHY_DMOPBUFCTL);
+		} else if (glue->usbss_rev == MUSB_USBSS_REV_814X ||
+				glue->usbss_rev == MUSB_USBSS_REV_33XX) {
+			usbphycfg &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN);
+			usbphycfg |= USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN;
+			if (glue->usbss_rev == MUSB_USBSS_REV_814X) {
+				usbphycfg &= ~(USBPHY_DPINPUT | USBPHY_DMINPUT);
+				usbphycfg |= USBPHY_DPOPBUFCTL
+						| USBPHY_DMOPBUFCTL;
+			}
 		}
 	} else {
 		if (glue->usbss_rev == MUSB_USBSS_REV_816X)
 			usbphycfg &= ~TI816X_USBPHY0_NORMAL_MODE;
-		else if (glue->usbss_rev == MUSB_USBSS_REV_814X)
+		else if (glue->usbss_rev == MUSB_USBSS_REV_814X ||
+				glue->usbss_rev == MUSB_USBSS_REV_33XX)
 			usbphycfg |= USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN;
 	}
 	__raw_writel(usbphycfg, glue->usb_ctrl);