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| author | Yunzhi Li <lyz@rock-chips.com> | 2015-12-17 20:14:26 +0100 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-12-22 18:51:45 +0100 |
| commit | cebfdbf329ae929ccb71632888a7c2100c3d1eeb (patch) | |
| tree | d1b535eb8b5c28a1c83bd822221d24066a0ed49d /COPYING | |
| parent | usb: dwc2: Restore GUSBCFG in dwc2_get_hwparams() (diff) | |
| download | linux-cebfdbf329ae929ccb71632888a7c2100c3d1eeb.tar.xz linux-cebfdbf329ae929ccb71632888a7c2100c3d1eeb.zip | |
usb: dwc2: reset dwc2 core before dwc2_get_hwparams()
We initiate dwc2 usb controller in BIOS, dwc2_core_reset() should
be called before dwc2_get_hwparams() to reset core registers to
default value. Without this the FIFO setting might be incorrect
because calculating FIFO size need power-on value of
GRXFSIZ/GNPTXFSIZ/HPTXFSIZ registers.
This patch could avoid warnning massage like in rk3288 platform:
[ 2.074764] dwc2 ff580000.usb: 256 invalid for
host_perio_tx_fifo_size. Check HW configuration.
Signed-off-by: Yunzhi Li <lyz@rock-chips.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'COPYING')
0 files changed, 0 insertions, 0 deletions