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[83.57.169.13]) by smtp.gmail.com with ESMTPSA id y14sm714198wro.58.2021.01.24.12.28.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 Jan 2021 12:28:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=yP26PpmJagN4jG84JFkSeSaPQBLeLAiKLXm9b3ACybs=; b=tzfBvAz3pQDVChvcJBMR9Tu7opB3A18s0lrsBHzAhJYQfarIP+3WR48SoxU+DisNSb ZCSipGtobD7ux00IfeoE47MRqMANSe/aYGK+J3J4caclgOYGBccHXrkAG9lmelQwghwB 2vEs2ZftuA9uq6bl0ZDfPNfN+LaiFQAD1fO8nk5RiSqiZNh0HPregZJWVvhphVv5JSaF 1bk79ygHWtAGyEH7XlJAJaWlZKjq+7HIVrK9z9LtE72AnoW2AmhuXcoflSqHHqUTpTQb thEYIrQIF6SjPLW3CbMbvSmajIsdGcjEWWJipM8anKfHEFX0YvwPTYOyZ2jfETmvEyEF 260A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=yP26PpmJagN4jG84JFkSeSaPQBLeLAiKLXm9b3ACybs=; b=GVIJ8BrFa0CFx93Mp3p6lWlFWF+xFigAu5k/CCSR+u1xEgZdmz4iSROaUO9XAiF7WM raAWS0tx8NvtT+oyj3sWbumrpw1fHcsb3/Eupp5DqpkCsNNek/nFQwGBSGUrhRwiwSGw pFVq3D5FTSTctjdQZDLYu+9bpyXgQ2kEhPW08VHyHvD58kybFpoqrVh0bOfDf+vF8TFk XEJVD5G+wcvTNEeN2iSCrLWT2+BKWMFfVDXC8zTtBOR7oe/c8xHrIfELTJb2FnlfVh9a pBYLlAfNwpDKW6gE7suMPkxWQcfrV50LsDhkDzjIEFBVBbJIH/YjTP8WvVAaucADJrJi K5Og== X-Gm-Message-State: AOAM531KwtMrW/jRwMi/C7QYw/+m/6vDcaE1fh6vR5EXQETe4StOizS2 uPFz9nrQKFPctaIdON5jl5s= X-Google-Smtp-Source: ABdhPJyG17Ye37egAn5Gd5CN8XCVreyrg9hI35tuKX/AIuPVCj7/iZ/Gxw7RaNreThRKkyllUkHIeg== X-Received: by 2002:adf:eb05:: with SMTP id s5mr233869wrn.333.1611520130636; Sun, 24 Jan 2021 12:28:50 -0800 (PST) Sender: =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, Bin Meng Cc: Alistair Francis , qemu-block@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Pragnesh Patel , Bin Meng Subject: [PATCH v3 6/6] hw/sd: ssi-sd: Support multiple block write Date: Sun, 24 Jan 2021 21:28:17 +0100 Message-Id: <20210124202817.2624557-7-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210124202817.2624557-1-f4bug@amsat.org> References: <20210124202817.2624557-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) From: Bin Meng For a multiple block write operation, each block begins with a multi write start token. Unlike the SD mode that the multiple block write ends when receiving a STOP_TRAN command (CMD12), a special stop tran token is used to signal the card. Emulating this by manually sending a CMD12 to the SD card core, to bring it out of the receiving data state. Signed-off-by: Bin Meng Acked-by: Alistair Francis Message-Id: <20210123104016.17485-18-bmeng.cn@gmail.com> Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/sd/ssi-sd.c | 35 +++++++++++++++++++++++++++++++++-- 1 file changed, 33 insertions(+), 2 deletions(-) diff --git a/hw/sd/ssi-sd.c b/hw/sd/ssi-sd.c index 1205ad8b52c..2d08ce4820a 100644 --- a/hw/sd/ssi-sd.c +++ b/hw/sd/ssi-sd.c @@ -4,6 +4,11 @@ * Copyright (c) 2007-2009 CodeSourcery. * Written by Paul Brook * + * Copyright (c) 2021 Wind River Systems, Inc. + * Improved by Bin Meng + * + * Validated with U-Boot v2021.01 and Linux v5.10 mmc_spi driver + * * This code is licensed under the GNU GPL v2. * * Contributions after 2012-01-13 are licensed under the terms of the @@ -82,6 +87,10 @@ OBJECT_DECLARE_SIMPLE_TYPE(ssi_sd_state, SSI_SD) #define SSI_SDR_ADDRESS_ERROR 0x2000 #define SSI_SDR_PARAMETER_ERROR 0x4000 =20 +/* multiple block write */ +#define SSI_TOKEN_MULTI_WRITE 0xfc +/* terminate multiple block write */ +#define SSI_TOKEN_STOP_TRAN 0xfd /* single block read/write, multiple block read */ #define SSI_TOKEN_SINGLE 0xfe =20 @@ -94,6 +103,8 @@ OBJECT_DECLARE_SIMPLE_TYPE(ssi_sd_state, SSI_SD) static uint32_t ssi_sd_transfer(SSIPeripheral *dev, uint32_t val) { ssi_sd_state *s =3D SSI_SD(dev); + SDRequest request; + uint8_t longresp[16]; =20 /* * Special case: allow CMD12 (STOP TRANSMISSION) while reading data. @@ -125,9 +136,31 @@ static uint32_t ssi_sd_transfer(SSIPeripheral *dev, ui= nt32_t val) return SSI_DUMMY; break; case SSI_TOKEN_SINGLE: + case SSI_TOKEN_MULTI_WRITE: DPRINTF("Start write block\n"); s->mode =3D SSI_SD_DATA_WRITE; return SSI_DUMMY; + case SSI_TOKEN_STOP_TRAN: + DPRINTF("Stop multiple write\n"); + + /* manually issue cmd12 to stop the transfer */ + request.cmd =3D 12; + request.arg =3D 0; + s->arglen =3D sdbus_do_command(&s->sdbus, &request, longresp); + if (s->arglen <=3D 0) { + s->arglen =3D 1; + /* a zero value indicates the card is busy */ + s->response[0] =3D 0; + DPRINTF("SD card busy\n"); + } else { + s->arglen =3D 1; + /* a non-zero value indicates the card is ready */ + s->response[0] =3D SSI_DUMMY; + } + + s->mode =3D SSI_SD_RESPONSE; + s->response_pos =3D 0; + return SSI_DUMMY; } =20 s->cmd =3D val & 0x3f; @@ -136,8 +169,6 @@ static uint32_t ssi_sd_transfer(SSIPeripheral *dev, uin= t32_t val) return SSI_DUMMY; case SSI_SD_CMDARG: if (s->arglen =3D=3D 4) { - SDRequest request; - uint8_t longresp[16]; /* FIXME: Check CRC. */ request.cmd =3D s->cmd; request.arg =3D ldl_be_p(s->cmdarg); --=20 2.26.2