27 Apr
2020
27 Apr
'20
12:16 p.m.
On Fri, 2020-04-24 at 18:50 +0200, Sylwester Nawrocki wrote:
In current code there is no cache flush after initializing the scratchpad buffer array with the scratchpad buffer pointers. This leads to a failure of the "slot enable" command on the rpi4 board (Broadcom STB PCIe controller + VL805 USB hub) - the very first TRB transfer on the command ring fails and there is a timeout while waiting for the command completion event. After adding the missing cache flush everything seems to be working as expected.
Reviewed-by: Bin Meng bmeng.cn@gmail.com Signed-off-by: Sylwester Nawrocki s.nawrocki@samsung.com
Reviewed-by: Nicolas Saenz Julienne nsaenzjulienne@suse.de
Regards, Nicolas