From patchwork Wed May 31 12:49:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Md Sadre Alam X-Patchwork-Id: 689469 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4FF32C77B73 for ; Wed, 31 May 2023 13:10:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236179AbjEaNKZ (ORCPT ); Wed, 31 May 2023 09:10:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36904 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236075AbjEaNKY (ORCPT ); Wed, 31 May 2023 09:10:24 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C30FD98; Wed, 31 May 2023 06:10:15 -0700 (PDT) Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34V8jJVG005400; Wed, 31 May 2023 12:50:03 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=qcppdkim1; bh=+Pnhk5GIyl/VAZMcKl98t8zH74pqJ2uHHdBLgcQBRe8=; b=jybOIOkfEzEJUxKI0VV8UFyGT+yccbdCpjrGfcvT8G/urOKRcyLjJKWWLhHrMJfA3eXE 2eYBF+zdOHvvbwYefqQEdEWDUQ947HJh3GnS3ZMFT/blFVyBkx7dJ1Qkh7wjiPv56CPP P19AUwlN0q2bPCR2NBkBb738wIfTGFjAAoMJsKrQLSUKjdd2wKuDmd7/LoiWe40rzGEu LBbggeIvgdLAxdSOFqQ/4HhjmOujDWq3SolTWOprXoacp/OnxuDKC5HIWNrZMMpVXr33 lXCQFk18ByD5+VQlDpw2CJLL+lKEIU+M4PKjIHykM9UaOKMyKU+H2HCOmmYtslqYE+7J rA== Received: from apblrppmta02.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3qww9c98s7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 31 May 2023 12:50:03 +0000 Received: from pps.filterd (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 34VCnxcD021039; Wed, 31 May 2023 12:50:00 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 3quaxkdw05-1; Wed, 31 May 2023 12:50:00 +0000 Received: from APBLRPPMTA02.qualcomm.com (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 34VCnxEK021048; Wed, 31 May 2023 12:49:59 GMT Received: from mdalam-linux.qualcomm.com (mdalam-linux.qualcomm.com [10.201.2.71]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 34VCnxDe021047; Wed, 31 May 2023 12:49:59 +0000 Received: by mdalam-linux.qualcomm.com (Postfix, from userid 466583) id DF76512010C1; Wed, 31 May 2023 18:19:58 +0530 (IST) From: Md Sadre Alam To: mani@kernel.org, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, linux-mtd@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: quic_srichara@quicinc.com, quic_mdalam@quicinc.com Subject: [PATCH v3 3/5] mtd: rawnand: qcom: Add support for param_page read exec_ops Date: Wed, 31 May 2023 18:19:51 +0530 Message-Id: <20230531124953.21007-3-quic_mdalam@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230531124953.21007-1-quic_mdalam@quicinc.com> References: <20230531124953.21007-1-quic_mdalam@quicinc.com> X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: bV2wo_zqvCyH-sRE-rAOliw7nex_mk2g X-Proofpoint-GUID: bV2wo_zqvCyH-sRE-rAOliw7nex_mk2g X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.176.26 definitions=2023-05-31_08,2023-05-31_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxlogscore=999 mlxscore=0 lowpriorityscore=0 bulkscore=0 impostorscore=0 adultscore=0 suspectscore=0 malwarescore=0 spamscore=0 phishscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305310109 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This change will add exec_ops for PARAM_PAGE_READ command. Co-developed-by: Sricharan Ramabadhran Signed-off-by: Sricharan Ramabadhran Signed-off-by: Md Sadre Alam --- Change in [v3] * Removed hard coded value in param_page exec_op API, and used whatever passed by core. * Removed nandc->props->qpic_v2 condition , since its not needed at all. * Updated nandc->buf_count = len , len provided by core. Change in [v2] * Missed to post Cover-letter, so posting v2 patch with cover-letter Change in [v1] * Added initial support for exec_ops. drivers/mtd/nand/raw/qcom_nandc.c | 105 +++++++++++++++++++++++++++++- 1 file changed, 104 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c index 659ba923b68a..b4823b72fe73 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -1546,7 +1546,7 @@ static void pre_command(struct qcom_nand_host *host, int command) clear_read_regs(nandc); - if (command == NAND_CMD_PARAM || command == NAND_CMD_ERASE1) + if (command == NAND_CMD_ERASE1) clear_bam_transaction(nandc); } @@ -3177,6 +3177,103 @@ static int qcom_misc_cmd_type_exec(struct nand_chip *chip, const struct nand_sub return ret; } +static int qcom_param_page_type_exec(struct nand_chip *chip, const struct nand_subop *subop) +{ + struct qcom_nand_host *host = to_qcom_nand_host(chip); + struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip); + struct qcom_op q_op; + const struct nand_op_instr *instr = NULL; + unsigned int op_id = 0; + unsigned int len = 0; + int ret = 0; + + qcom_parse_instructions(chip, subop, &q_op); + + q_op.cmd_reg |= PAGE_ACC | LAST_PAGE; + + nandc->buf_count = 0; + nandc->buf_start = 0; + host->use_ecc = false; + clear_read_regs(nandc); + clear_bam_transaction(nandc); + + nandc_set_reg(chip, NAND_FLASH_CMD, q_op.cmd_reg); + + nandc_set_reg(chip, NAND_ADDR0, 0); + nandc_set_reg(chip, NAND_ADDR1, 0); + nandc_set_reg(chip, NAND_DEV0_CFG0, 0 << CW_PER_PAGE + | 512 << UD_SIZE_BYTES + | 5 << NUM_ADDR_CYCLES + | 0 << SPARE_SIZE_BYTES); + nandc_set_reg(chip, NAND_DEV0_CFG1, 7 << NAND_RECOVERY_CYCLES + | 0 << CS_ACTIVE_BSY + | 17 << BAD_BLOCK_BYTE_NUM + | 1 << BAD_BLOCK_IN_SPARE_AREA + | 2 << WR_RD_BSY_GAP + | 0 << WIDE_FLASH + | 1 << DEV0_CFG1_ECC_DISABLE); + if (!nandc->props->qpic_v2) + nandc_set_reg(chip, NAND_EBI2_ECC_BUF_CFG, 1 << ECC_CFG_ECC_DISABLE); + + /* configure CMD1 and VLD for ONFI param probing in QPIC v1 */ + if (!nandc->props->qpic_v2) { + nandc_set_reg(chip, NAND_DEV_CMD_VLD, + (nandc->vld & ~READ_START_VLD)); + nandc_set_reg(chip, NAND_DEV_CMD1, + (nandc->cmd1 & ~(0xFF << READ_ADDR)) + | NAND_CMD_PARAM << READ_ADDR); + } + + nandc_set_reg(chip, NAND_EXEC_CMD, 1); + + if (!nandc->props->qpic_v2) { + nandc_set_reg(chip, NAND_DEV_CMD1_RESTORE, nandc->cmd1); + nandc_set_reg(chip, NAND_DEV_CMD_VLD_RESTORE, nandc->vld); + } + + instr = q_op.data_instr; + op_id = q_op.data_instr_idx; + len = nand_subop_get_data_len(subop, op_id); + + nandc_set_read_loc(chip, 0, 0, 0, len, 1); + + if (!nandc->props->qpic_v2) { + write_reg_dma(nandc, NAND_DEV_CMD_VLD, 1, 0); + write_reg_dma(nandc, NAND_DEV_CMD1, 1, NAND_BAM_NEXT_SGL); + } + + nandc->buf_count = len; + memset(nandc->data_buffer, 0xff, nandc->buf_count); + + config_nand_single_cw_page_read(chip, false, 0); + + read_data_dma(nandc, FLASH_BUF_ACC, nandc->data_buffer, + nandc->buf_count, 0); + + /* restore CMD1 and VLD regs */ + if (!nandc->props->qpic_v2) { + write_reg_dma(nandc, NAND_DEV_CMD1_RESTORE, 1, 0); + write_reg_dma(nandc, NAND_DEV_CMD_VLD_RESTORE, 1, NAND_BAM_NEXT_SGL); + } + + ret = submit_descs(nandc); + if (ret) { + dev_err(nandc->dev, "failure in sbumitting param page descriptor\n"); + free_descs(nandc); + goto err_out; + } + free_descs(nandc); + + ret = qcom_wait_rdy_poll(chip, q_op.rdy_timeout_ms); + if (ret) + goto err_out; + + memcpy(instr->ctx.data.buf.in, nandc->data_buffer, len); + +err_out: + return ret; +} + static const struct nand_op_parser qcom_op_parser = NAND_OP_PARSER( NAND_OP_PARSER_PATTERN( qcom_misc_cmd_type_exec, @@ -3191,6 +3288,12 @@ static const struct nand_op_parser qcom_op_parser = NAND_OP_PARSER( qcom_read_status_exec, NAND_OP_PARSER_PAT_CMD_ELEM(false), NAND_OP_PARSER_PAT_DATA_IN_ELEM(false, 1)), + NAND_OP_PARSER_PATTERN( + qcom_param_page_type_exec, + NAND_OP_PARSER_PAT_CMD_ELEM(false), + NAND_OP_PARSER_PAT_ADDR_ELEM(false, MAX_ADDRESS_CYCLE), + NAND_OP_PARSER_PAT_WAITRDY_ELEM(true), + NAND_OP_PARSER_PAT_DATA_IN_ELEM(false, 512)), ); static int qcom_check_op(struct nand_chip *chip,