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Iglesias" , Luc Michel , "Paolo Bonzini" Subject: [PATCH v2 12/22] sd: emmc: add CMD21 tuning sequence Date: Mon, 22 Feb 2021 13:50:29 +0530 Message-ID: <1613982039-13861-13-git-send-email-sai.pavan.boddu@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1613982039-13861-1-git-send-email-sai.pavan.boddu@xilinx.com> References: <1613982039-13861-1-git-send-email-sai.pavan.boddu@xilinx.com> MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: fcb33f0b-d340-4a16-3b55-08d8d70a2120 X-MS-TrafficTypeDiagnostic: BYAPR02MB4248: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:2803; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:149.199.62.198; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:xsj-pvapexch02.xlnx.xilinx.com; PTR:unknown-62-198.xilinx.com; CAT:NONE; SFS:(4636009)(376002)(346002)(136003)(396003)(39850400004)(46966006)(36840700001)(82740400003)(7636003)(478600001)(2906002)(6666004)(26005)(70206006)(70586007)(5660300002)(186003)(921005)(36756003)(356005)(336012)(47076005)(54906003)(7416002)(426003)(107886003)(6266002)(36860700001)(2616005)(110136005)(4326008)(8676002)(83380400001)(36906005)(42186006)(82310400003)(316002)(8936002)(102446001); DIR:OUT; SFP:1101; X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Feb 2021 08:16:17.7700 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fcb33f0b-d340-4a16-3b55-08d8d70a2120 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.62.198]; Helo=[xsj-pvapexch02.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: CY1NAM02FT017.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB4248 Received-SPF: pass client-ip=40.107.76.81; envelope-from=saipava@xilinx.com; helo=NAM02-CY1-obe.outbound.protection.outlook.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: saipava@xilinx.com, qemu-devel@nongnu.org, qemu-block@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" eMMC cards support tuning sequence for entering HS200 mode. Signed-off-by: Sai Pavan Boddu Signed-off-by: Edgar E. Iglesias --- hw/sd/sd.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index e50d40b..d702027 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -1378,6 +1378,14 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req) } break; + case 21: /* CMD21: mmc SEND TUNING_BLOCK */ + if (sd->emmc && (sd->state == sd_transfer_state)) { + sd->state = sd_sendingdata_state; + sd->data_offset = 0; + return sd_r1; + } + break; + case 23: /* CMD23: SET_BLOCK_COUNT */ if (sd->spec_version < SD_PHY_SPECv3_01_VERS) { break; @@ -2112,6 +2120,30 @@ static const uint8_t sd_tuning_block_pattern[SD_TUNING_BLOCK_SIZE] = { 0xbb, 0xff, 0xf7, 0xff, 0xf7, 0x7f, 0x7b, 0xde, }; +#define EXCSD_BUS_WIDTH_OFFSET 183 +#define BUS_WIDTH_8_MASK 0x4 +#define BUS_WIDTH_4_MASK 0x2 +#define MMC_TUNING_BLOCK_SIZE 128 + +static const uint8_t mmc_tunning_block_pattern[128] = { + 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, + 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, 0xcc, + 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, 0xff, + 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, 0xff, + 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, 0xdd, + 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb, + 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, 0xff, + 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, 0xff, + 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, + 0x00, 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, + 0xcc, 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, + 0xff, 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, + 0xff, 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, + 0xdd, 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, + 0xbb, 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, + 0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, +}; + uint8_t sd_read_byte(SDState *sd) { /* TODO: Append CRCs */ @@ -2205,6 +2237,21 @@ uint8_t sd_read_byte(SDState *sd) ret = sd_tuning_block_pattern[sd->data_offset++]; break; + case 21: /* CMD21: SEND_TUNNING_BLOCK (MMC) */ + if (sd->data_offset >= MMC_TUNING_BLOCK_SIZE - 1) { + sd->state = sd_transfer_state; + } + if (sd->ext_csd[EXCSD_BUS_WIDTH_OFFSET] & BUS_WIDTH_8_MASK) { + ret = mmc_tunning_block_pattern[sd->data_offset++]; + } else { + /* Return LSB Nibbles of two byte from the 8bit tuning block + * for 4bit mode + */ + ret = mmc_tunning_block_pattern[sd->data_offset++] & 0x0F; + ret |= (mmc_tunning_block_pattern[sd->data_offset++] & 0x0F) << 4; + } + break; + case 22: /* ACMD22: SEND_NUM_WR_BLOCKS */ ret = sd->data[sd->data_offset ++]; -- 2.7.4