W dniu 6.06.2023 o 12:04, Peter Maydell pisze:
On Tue, 6 Jun 2023 at 10:47, Marcin Juszkiewicz
<marcin.juszkiew...@linaro.org> wrote:
W dniu 5.06.2023 o 11:55, Yuquan Wang pisze:
The current sbsa-ref cannot use EHCI controller which is only
able to do 32-bit DMA, since sbsa-ref doesn't have RAM below 4GB.
Hence, this uses XHCI to provide a usb controller with 64-bit
DMA capablity instead of EHCI.
Signed-off-by: Yuquan Wang<wangyuquan1...@phytium.com.cn>
Reviewed-by: Marcin Juszkiewicz <marcin.juszkiew...@linaro.org>
Without EDK2 changes Linux behaves same way (no USB found), with EDK2
changes (EHCI->XHCI) Linux gets USB devices.
So it doesn't break (cause to crash) old EDK2 images? That's a
pleasant surprise.
In both cases with not modified EDK2 Linux behaves the same:
ehci-platform LNRO0D20:00: Error: DMA mask configuration failed
ehci-platform: probe of LNRO0D20:00 failed with error -5
