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[83.50.86.26]) by smtp.gmail.com with ESMTPSA id f10sm16295181wmq.16.2022.01.03.23.54.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Jan 2022 23:54:23 -0800 (PST) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PULL 2/2] hw/sd: Add SDHC support for SD card SPI-mode Date: Tue, 4 Jan 2022 08:54:12 +0100 Message-Id: <20220104075412.2088859-3-f4bug@amsat.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20220104075412.2088859-1-f4bug@amsat.org> References: <20220104075412.2088859-1-f4bug@amsat.org> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::435 (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::435; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wr1-x435.google.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 5.0 requ) DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: , Cc: Frank Chang , Bin Meng , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , qemu-block@nongnu.org, Jim Shu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Frank Chang In SPI-mode, SD card's OCR register: Card Capacity Status (CCS) bit is not set to 1 correclty when the assigned SD image size is larger than 2GB (SDHC). This will cause the SD card to be indentified as SDSC incorrectly. CCS bit should be set to 1 if we are using SDHC. Also, as there's no power up emulation in SPI-mode. The OCR register: Card power up status bit bit (busy) should also be set to 1 when reset. (busy bit is set to LOW if the card has not finished the power up routine.) Signed-off-by: Frank Chang Reviewed-by: Jim Shu Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20211228125719.14712-1-frank.chang@sifive.com> Signed-off-by: Philippe Mathieu-Daudé --- hw/sd/sd.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 0bb99352cc1..551d03cf5ec 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -290,12 +290,6 @@ FIELD(OCR, CARD_POWER_UP, 31, 1) | R_OCR_CARD_CAPACITY_MASK \ | R_OCR_CARD_POWER_UP_MASK) -static void sd_set_ocr(SDState *sd) -{ - /* All voltages OK */ - sd->ocr = R_OCR_VDD_VOLTAGE_WIN_HI_MASK; -} - static void sd_ocr_powerup(void *opaque) { SDState *sd = opaque; @@ -311,6 +305,22 @@ static void sd_ocr_powerup(void *opaque) } } +static void sd_set_ocr(SDState *sd) +{ + /* All voltages OK */ + sd->ocr = R_OCR_VDD_VOLTAGE_WIN_HI_MASK; + + if (sd->spi) { + /* + * We don't need to emulate power up sequence in SPI-mode. + * Thus, the card's power up status bit should be set to 1 when reset. + * The card's capacity status bit should also be set if SD card size + * is larger than 2GB for SDHC support. + */ + sd_ocr_powerup(sd); + } +} + static void sd_set_scr(SDState *sd) { sd->scr[0] = 0 << 4; /* SCR structure version 1.0 */ @@ -560,6 +570,7 @@ static void sd_reset(DeviceState *dev) sd->state = sd_idle_state; sd->rca = 0x0000; + sd->size = size; sd_set_ocr(sd); sd_set_scr(sd); sd_set_cid(sd); @@ -574,7 +585,6 @@ static void sd_reset(DeviceState *dev) memset(sd->function_group, 0, sizeof(sd->function_group)); sd->erase_start = INVALID_ADDRESS; sd->erase_end = INVALID_ADDRESS; - sd->size = size; sd->blk_len = 0x200; sd->pwd_len = 0; sd->expecting_acmd = false;