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[83.21.93.182]) by smtp.gmail.com with ESMTPSA id q22-20020aa7d456000000b0051631518aabsm5014340edr.93.2023.06.06.06.47.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 06 Jun 2023 06:47:20 -0700 (PDT) Message-ID: <1bf47953-8589-a453-5e05-6b36b28f4fbd@linaro.org> Date: Tue, 6 Jun 2023 15:47:18 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH v3 1/1] hw/arm/sbsa-ref: use XHCI to replace EHCI Content-Language: pl-PL, en-GB, en-HK To: Yuquan Wang , rad@semihalf.com, peter.maydell@linaro.org Cc: quic_llindhol@quicinc.com, chenbaozi@phytium.com.cn, qemu-arm@nongnu.org, qemu-devel@nongnu.org References: <20230605095536.117384-1-wangyuquan1236@phytium.com.cn> <20230605095536.117384-2-wangyuquan1236@phytium.com.cn> From: Marcin Juszkiewicz Organization: Linaro In-Reply-To: <20230605095536.117384-2-wangyuquan1236@phytium.com.cn> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::52a; envelope-from=marcin.juszkiewicz@linaro.org; helo=mail-ed1-x52a.google.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.094, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01, T_SPF_TEMPERROR=0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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. Please also modify hw/arm/Kconfig file so SBSA-ref will select XHCI instead of EHCI there.