From: Stefan Agner <stefan@agner.ch>
Date: Sun, 2 Mar 2014 18:46:49 +0000 (+0100)
Subject: usb: tegra: fix PHY configuration
X-Git-Tag: v2014.07-rc1~2^2~4^2~2
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=b1d615f3f10294c016cc424ef05e938f49af8117;p=u-boot

usb: tegra: fix PHY configuration

On Tegra30 and later, the PTS (parallel transceiver select) and STS
(serial transceiver select) are part of the HOSTPC1_DEVLC_0 register
rather than PORTSC1_0 register. Since the reset configuration
usually matches the intended configuration, this error did not show
up on Tegra30 devices.

Also use the slightly different bit fields of first USB, (USBD) on
Tegra20 and move those definitions to the Tegra20 specific header
file.

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Tom Warren <twarren@nvidia.com>
---

diff --git a/arch/arm/include/asm/arch-tegra/usb.h b/arch/arm/include/asm/arch-tegra/usb.h
index a1efd07c7d..35d14e977f 100644
--- a/arch/arm/include/asm/arch-tegra/usb.h
+++ b/arch/arm/include/asm/arch-tegra/usb.h
@@ -91,11 +91,6 @@
 /* USBx_CONTROLLER_2_USB2D_ICUSB_CTRL_0 */
 #define IC_ENB1					(1 << 3)
 
-/* PORTSC1, USB1, defined for Tegra20 */
-#define PTS1_SHIFT				31
-#define PTS1_MASK				(1 << PTS1_SHIFT)
-#define STS1					(1 << 30)
-
 #define PTS_UTMI	0
 #define PTS_RESERVED	1
 #define PTS_ULPI	2
diff --git a/arch/arm/include/asm/arch-tegra20/usb.h b/arch/arm/include/asm/arch-tegra20/usb.h
index 3d94cc73b8..bcd6570610 100644
--- a/arch/arm/include/asm/arch-tegra20/usb.h
+++ b/arch/arm/include/asm/arch-tegra20/usb.h
@@ -147,9 +147,14 @@ struct usb_ctlr {
 #define ULPI_DIR_TRIMMER_LOAD			(1 << 24)
 #define ULPI_DIR_TRIMMER_SEL(x)			(((x) & 0x7) << 25)
 
+/* PORTSC1, USB1 */
+#define PTS1_SHIFT				31
+#define PTS1_MASK				(1 << PTS1_SHIFT)
+#define STS1					(1 << 30)
+
 /* PORTSC, USB2, USB3 */
 #define PTS_SHIFT		30
 #define PTS_MASK		(3U << PTS_SHIFT)
-
 #define STS			(1 << 29)
+
 #endif /* _TEGRA20_USB_H_ */
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 20e9297d9c..c6b64b299e 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -486,9 +486,21 @@ static int init_utmi_usb_controller(struct fdt_usb *config)
 	clrbits_le32(&usbctlr->icusb_ctrl, IC_ENB1);
 
 	/* Select UTMI parallel interface */
-	clrsetbits_le32(&usbctlr->port_sc1, PTS_MASK,
+#if defined(CONFIG_TEGRA20)
+	if (config->periph_id == PERIPH_ID_USBD) {
+		clrsetbits_le32(&usbctlr->port_sc1, PTS1_MASK,
+				PTS_UTMI << PTS1_SHIFT);
+		clrbits_le32(&usbctlr->port_sc1, STS1);
+	} else {
+		clrsetbits_le32(&usbctlr->port_sc1, PTS_MASK,
+				PTS_UTMI << PTS_SHIFT);
+		clrbits_le32(&usbctlr->port_sc1, STS);
+	}
+#else
+	clrsetbits_le32(&usbctlr->hostpc1_devlc, PTS_MASK,
 			PTS_UTMI << PTS_SHIFT);
-	clrbits_le32(&usbctlr->port_sc1, STS);
+	clrbits_le32(&usbctlr->hostpc1_devlc, STS);
+#endif
 
 	/* Deassert power down state */
 	clrbits_le32(&usbctlr->utmip_xcvr_cfg0, UTMIP_FORCE_PD_POWERDOWN |
@@ -546,7 +558,13 @@ static int init_ulpi_usb_controller(struct fdt_usb *config)
 			ULPI_CLKOUT_PINMUX_BYP | ULPI_OUTPUT_PINMUX_BYP);
 
 	/* Select ULPI parallel interface */
-	clrsetbits_le32(&usbctlr->port_sc1, PTS_MASK, PTS_ULPI << PTS_SHIFT);
+#if defined(CONFIG_TEGRA20)
+	clrsetbits_le32(&usbctlr->port_sc1, PTS_MASK,
+			PTS_ULPI << PTS_SHIFT);
+#else
+	clrsetbits_le32(&usbctlr->hostpc1_devlc, PTS_MASK,
+			PTS_ULPI << PTS_SHIFT);
+#endif
 
 	/* enable ULPI transceiver */
 	setbits_le32(&usbctlr->susp_ctrl, ULPI_PHY_ENB);