| Message ID | 20200629094730.10051-1-pragnesh.patel@sifive.com |
|---|---|
| Headers | show
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Mon, 29 Jun 2020 09:47:59 +0000 From: Pragnesh Patel <pragnesh.patel@sifive.com> To: peng.fan@nxp.com Cc: bmeng.cn@gmail.com, paul.walmsley@sifive.com, jagan@amarulasolutions.com, sagar.kadam@sifive.com, u-boot@lists.denx.de, Pragnesh Patel <pragnesh.patel@sifive.com> Subject: [PATCH 0/6] mmc_spi: mmc erase resolve Date: Mon, 29 Jun 2020 15:17:23 +0530 Message-Id: <20200629094730.10051-1-pragnesh.patel@sifive.com> X-Mailer: git-send-email 2.17.1 Content-Type: text/plain X-ClientProxiedBy: LO2P265CA0437.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:e::17) To MN2PR13MB2797.namprd13.prod.outlook.com (2603:10b6:208:f2::30) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from sachinj2-OptiPlex-7010.open-silicon.com (114.143.65.226) by LO2P265CA0437.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:e::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3131.20 via Frontend Transport; Mon, 29 Jun 2020 09:47:57 +0000 X-Mailer: git-send-email 2.17.1 X-Originating-IP: [114.143.65.226] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 59bc8337-4c3c-4c92-f1d9-08d81c1181b7 X-MS-TrafficTypeDiagnostic: MN2PR13MB2944: X-LD-Processed: 22f88e9d-ae0d-4ed9-b984-cdc9be1529f1,ExtAddr X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: <MN2PR13MB29442F7C8C294DBD03EE4BF6E56E0@MN2PR13MB2944.namprd13.prod.outlook.com> X-MS-Oob-TLC-OOBClassifiers: OLM:6430; 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mmc_spi: mmc erase resolve
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Earlier "mmc erase " command reorts Ok but not actually erase the contents of some SD cards. This series will resolve this issue. There is still 1 limitation for some SDHC mmc_spi cards: "mmc erase *blk#* cnt" can not erase only 1 block that means: => mmc erase 0x22 1 will not erase the contents of SD card. User has to erase multiple blocks at a time that means: => mmc erase 0x22 2 will erase the contents of SD card. This limitation is from micro SD card side, i found this limitation in Strontium micro SDHC - 4 GB (class 6). Pragnesh Patel (6): mmc: mmc_spi: correct the while condition mmc: mmc_spi: generate R1 response for different mmc SPI commands mmc: read ssr for SD spi mmc: mmc_spi: Read R2 response for send status command - CMD13 mmc: mmc_spi: Generate R1 response for erase block start and end address mmc_spi: generate R1b response for erase and stop transmission command drivers/mmc/mmc.c | 5 +++++ drivers/mmc/mmc_spi.c | 52 ++++++++++++++++++++++++++++++++++++------- 2 files changed, 49 insertions(+), 8 deletions(-)