On Tegra 3, 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 configured registers, this error did not show up on Tegra 3 devices.
Also clear the forced powerdown bit in the UTMIP_PLL_CFG2_0 register which brings USB2 in UTMI mode to work. This was clearly missing since the forced powerdown bit is set in reset by default for all USB ports. Signed-off-by: Stefan Agner <[email protected]> --- drivers/usb/host/ehci-tegra.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 0b42aa5..fdd56c9 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -461,6 +461,9 @@ static int init_utmi_usb_controller(struct fdt_usb *config) if (config->periph_id == PERIPH_ID_USBD) clrbits_le32(&clkrst->crc_utmip_pll_cfg2, UTMIP_FORCE_PD_SAMP_A_POWERDOWN); + if (config->periph_id == PERIPH_ID_USB2) + clrbits_le32(&clkrst->crc_utmip_pll_cfg2, + UTMIP_FORCE_PD_SAMP_B_POWERDOWN); if (config->periph_id == PERIPH_ID_USB3) clrbits_le32(&clkrst->crc_utmip_pll_cfg2, UTMIP_FORCE_PD_SAMP_C_POWERDOWN); @@ -483,9 +486,15 @@ 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, - PTS_UTMI << PTS_SHIFT); - clrbits_le32(&usbctlr->port_sc1, STS); + if (!controller->has_hostpc) { + 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->hostpc1_devlc, STS); + } /* Deassert power down state */ clrbits_le32(&usbctlr->utmip_xcvr_cfg0, UTMIP_FORCE_PD_POWERDOWN | @@ -543,7 +552,12 @@ 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 (!controller->has_hostpc) { + clrsetbits_le32(&usbctlr->port_sc1, PTS_MASK, + PTS_ULPI << PTS_SHIFT); + else + clrsetbits_le32(&usbctlr->hostpc1_devlc, PTS_MASK, + PTS_ULPI << PTS_SHIFT); /* enable ULPI transceiver */ setbits_le32(&usbctlr->susp_ctrl, ULPI_PHY_ENB); -- 1.8.5.4 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
