| Message ID | 7b1aeb18ad3291b47ae2e55ecdffe62456a2c7ad.1392579568.git.stefan@agner.ch |
|---|---|
| State | Superseded |
| Delegated to: | Tom Warren |
| Headers | show |
On 02/16/2014 12:50 PM, Stefan Agner wrote: > 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. Acked-by: Stephen Warren <swarren@nvidia.com>
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 0b42aa5..20e9297 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);
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 <stefan@agner.ch> --- drivers/usb/host/ehci-tegra.c | 3 +++ 1 file changed, 3 insertions(+)