diff options
| author | Stefan Reinauer <reinauer@chromium.org> | 2013-08-14 17:14:39 -0700 |
|---|---|---|
| committer | Isaac Christensen <isaac.christensen@se-eng.com> | 2014-08-06 23:09:46 +0200 |
| commit | 61fcd14561b226c4cca32148629c4ed42db9f645 (patch) | |
| tree | af363f082826cfeb64bcfd43005093017985f5df /src/cpu | |
| parent | bc6cc112e2a4a2474c8ce946faea24980732762a (diff) | |
Exynos5: Remove unneeded USB delays
Change-Id: I1144e9d6d6c4278842fdd36743c8a88555f81707
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/65912
Reviewed-by: Ronald G. Minnich <rminnich@chromium.org>
Commit-Queue: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Stefan Reinauer <reinauer@chromium.org>
(cherry picked from commit 95b518877edc88347ce9725ffee32f3aed0de7dc)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6505
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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) |