On 19/06/2023 12:00, Konrad Dybcio wrote: > On 18.06.2023 10:07, Krzysztof Kozlowski wrote: >> On 16/06/2023 17:14, Douglas Anderson wrote: >>> Trogdor devices use firmware backed by TF-A instead of Qualcomm's >>> normal TZ. On TF-A we end up mapping memory as cacheable. Specifically, >>> you can see in Trogdor's TF-A code [1] in qti_sip_mem_assign() that we >>> call qti_mmap_add_dynamic_region() with MT_RO_DATA. This translates >>> down to MT_MEMORY instead of MT_NON_CACHEABLE or MT_DEVICE. >>> >>> Let's allow devices like trogdor to be described properly by allowing >>> "dma-coherent" in the SCM node. >>> >>> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx >> >> 2 > Forgot to press alt or something D'oh! Best regards, Krzysztof
