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Fri, 21 Jun 2024 01:08:09 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Joel Stanley , Bin Meng , Sai Pavan Boddu , qemu-block@nongnu.org, Peter Maydell Subject: [PATCH 22/23] hw/sd/sdcard: Send WRITE_PROT bits MSB first (CMD30) Date: Fri, 21 Jun 2024 10:05:53 +0200 Message-ID: <20240621080554.18986-23-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240621080554.18986-1-philmd@linaro.org> References: <20240621080554.18986-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::334; envelope-from=philmd@linaro.org; helo=mail-wm1-x334.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1718957320669100005 Per sections 3.6.1 (SD Bus Protocol) and 7.3.2 (Responses): In the CMD line the Most Significant Bit is transmitted first. Use the stl_be_p() helper to store the value in big-endian. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- RFC because I'm surprised this has been unnoticed for 17 years (commit a1bb27b1e9 "initial SD card emulation", April 2007). Cc: Peter Maydell --- hw/sd/sd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 712fbc0926..601a6908aa 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -1498,7 +1498,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, S= DRequest req) } =20 sd->state =3D sd_sendingdata_state; - *(uint32_t *) sd->data =3D sd_wpbits(sd, req.arg); + stl_be_p(sd->data, sd_wpbits(sd, req.arg)); sd->data_start =3D addr; sd->data_offset =3D 0; return sd_r1; --=20 2.41.0