diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/samsung/exynos5250/usb.c | 9 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5420/usb.c | 9 |
2 files changed, 10 insertions, 8 deletions
diff --git a/src/cpu/samsung/exynos5250/usb.c b/src/cpu/samsung/exynos5250/usb.c index d8e07da080..5084707e36 100644 --- a/src/cpu/samsung/exynos5250/usb.c +++ b/src/cpu/samsung/exynos5250/usb.c @@ -88,10 +88,11 @@ static void setup_usb_phy(struct usb_phy *usb, int hsic_gpio) udelay(10); clrbits_le32(&usb->hsicphyctrl1, HOST_CTRL0_PHYSWRST); - /* PHY clock and power setup time */ - // FIXME If this happens more than 50ms before executing the payload, - // we might not need this delay. - mdelay(50); + /* At this point we need to wait for 50ms before talking to + * the USB controller (PHY clock and power setup time) + * By the time we are actually in the payload, these 50ms + * will have passed. + */ } void usb_init(device_t dev) diff --git a/src/cpu/samsung/exynos5420/usb.c b/src/cpu/samsung/exynos5420/usb.c index 4d0769970a..6e79ef1d0e 100644 --- a/src/cpu/samsung/exynos5420/usb.c +++ b/src/cpu/samsung/exynos5420/usb.c @@ -88,10 +88,11 @@ static void setup_usb_phy(struct usb_phy *usb, int hsic_gpio) udelay(10); clrbits_le32(&usb->hsicphyctrl1, HOST_CTRL0_PHYSWRST); - /* PHY clock and power setup time */ - // FIXME If this happens more than 50ms before executing the payload, - // we might not need this delay. - mdelay(50); + /* At this point we need to wait for 50ms before talking to + * the USB controller (PHY clock and power setup time) + * By the time we are actually in the payload, these 50ms + * will have passed. + */ } void usb_init(device_t dev) |