From patchwork Fri Aug 18 14:51:01 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: 714760 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 194E0C73C66 for ; Fri, 18 Aug 2023 14:52:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377521AbjHROwB (ORCPT ); Fri, 18 Aug 2023 10:52:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377712AbjHROv1 (ORCPT ); Fri, 18 Aug 2023 10:51:27 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 978963C21; Fri, 18 Aug 2023 07:51:25 -0700 (PDT) Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37IBsMfX015058; Fri, 18 Aug 2023 14:51:09 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=9krhDG92KmrwGfVOyaysSlXM/A2GxevjIrQYdObfOpI=; b=K2xt0b2ABu2g8JwSu3zd4wSlmW8RX2RDQsyc3oBy4EZp/ocQxUkpEehwhhniMOLhuVwK p/7hXm3Dc7Ef5S7zMxGllHF9cdtU/vlYeYaqOcVKo8lLPn9OAV+Pnf64E0rMI1Vg+LHi t+Ek5YN0oSm54bkH+CGD/C4aigEypntUSezswJeabWFIw3MhFUD5UwZn1iTe8a1/wVBK IrCkWL+0aFAXh1fv/JtUxWtzW5cDxx1ftcikWLc5m4bKGS7nC2Mv2y1q15le7cviW6dL 8U5b23RiA/u6gDQQrXfDzfBm5JCL9lgKFnvHYTy73QsJMSSH6NH9tg0tGBsXmFvPSRJk nA== Received: from apblrppmta01.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3sj6140jh3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 18 Aug 2023 14:51:09 +0000 Received: from pps.filterd (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 37IEp6Ag000321; Fri, 18 Aug 2023 14:51:06 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 3se35mqdy4-1; Fri, 18 Aug 2023 14:51:06 +0000 Received: from APBLRPPMTA01.qualcomm.com (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 37IEp4Qs000300; Fri, 18 Aug 2023 14:51:05 GMT Received: from mdalam-linux.qualcomm.com (mdalam-linux.qualcomm.com [10.201.2.71]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 37IEp4UQ032767; Fri, 18 Aug 2023 14:51:05 +0000 Received: by mdalam-linux.qualcomm.com (Postfix, from userid 466583) id ECC7512010CE; Fri, 18 Aug 2023 20:21:04 +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_mdalam@quicinc.com, quic_srichara@quicinc.com Subject: [PATCH 3/3] mtd: rawnand: qcom: Add read/read_start ops in exec_op path Date: Fri, 18 Aug 2023 20:21:01 +0530 Message-Id: <20230818145101.23825-4-quic_mdalam@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230818145101.23825-1-quic_mdalam@quicinc.com> References: <20230818145101.23825-1-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-GUID: ghE0kJoYG9k2M4PbFHW5ZD9abiubilfk X-Proofpoint-ORIG-GUID: ghE0kJoYG9k2M4PbFHW5ZD9abiubilfk X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-08-18_18,2023-08-18_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 malwarescore=0 suspectscore=0 mlxlogscore=999 phishscore=0 impostorscore=0 priorityscore=1501 bulkscore=0 adultscore=0 clxscore=1015 mlxscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308180135 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Sricharan Ramabadhran READ/READ_START opcodes are not set in exec_op path. Fixing that here. While there, Steps to program the controller is common for erase/reset/read/program page. So use a common pattern and pull them under one function. Signed-off-by: Md Sadre Alam Signed-off-by: Sricharan Ramabadhran --- drivers/mtd/nand/raw/qcom_nandc.c | 93 ++++++++++++------------------- 1 file changed, 35 insertions(+), 58 deletions(-) diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c index 73dd1b4e4e31..370a779610e2 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -2541,9 +2541,11 @@ static int qcom_nand_attach_chip(struct nand_chip *chip) return 0; } -static int qcom_op_cmd_mapping(struct qcom_nand_controller *nandc, u8 opcode, +static int qcom_op_cmd_mapping(struct nand_chip *chip, u8 opcode, struct qcom_op *q_op) { + struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip); + struct qcom_nand_host *host = to_qcom_nand_host(chip); int cmd; switch (opcode) { @@ -2571,6 +2573,13 @@ static int qcom_op_cmd_mapping(struct qcom_nand_controller *nandc, u8 opcode, q_op->flag = OP_PROGRAM_PAGE; nandc->exec_opwrite = true; break; + case NAND_CMD_READ0: + case NAND_CMD_READSTART: + if (host->use_ecc) + cmd = OP_PAGE_READ_WITH_ECC; + else + cmd = OP_PAGE_READ; + break; default: dev_err(nandc->dev, "Opcode not supported: %u\n", opcode); return -EOPNOTSUPP; @@ -2597,7 +2606,7 @@ static int qcom_parse_instructions(struct nand_chip *chip, switch (instr->type) { case NAND_OP_CMD_INSTR: - ret = qcom_op_cmd_mapping(nandc, instr->ctx.cmd.opcode, q_op); + ret = qcom_op_cmd_mapping(chip, instr->ctx.cmd.opcode, q_op); if (ret < 0) return ret; @@ -2791,13 +2800,25 @@ static int qcom_misc_cmd_type_exec(struct nand_chip *chip, const struct nand_sub struct qcom_nand_host *host = to_qcom_nand_host(chip); struct qcom_op q_op = {}; int ret; + int instrs = 1; ret = qcom_parse_instructions(chip, subop, &q_op); if (ret) return ret; - if (q_op.flag == OP_PROGRAM_PAGE) + if (q_op.flag == OP_PROGRAM_PAGE) { goto wait_rdy; + } else if (q_op.cmd_reg == OP_BLOCK_ERASE) { + q_op.cmd_reg |= PAGE_ACC | LAST_PAGE; + nandc_set_reg(chip, NAND_ADDR0, q_op.addr1_reg); + nandc_set_reg(chip, NAND_ADDR1, q_op.addr2_reg); + nandc_set_reg(chip, NAND_DEV0_CFG0, + host->cfg0_raw & ~(7 << CW_PER_PAGE)); + nandc_set_reg(chip, NAND_DEV0_CFG1, host->cfg1_raw); + instrs = 3; + } else { + return 0; + } nandc->buf_count = 0; nandc->buf_start = 0; @@ -2809,9 +2830,12 @@ static int qcom_misc_cmd_type_exec(struct nand_chip *chip, const struct nand_sub nandc_set_reg(chip, NAND_FLASH_CMD, q_op.cmd_reg); nandc_set_reg(chip, NAND_EXEC_CMD, 1); - write_reg_dma(nandc, NAND_FLASH_CMD, 1, NAND_BAM_NEXT_SGL); - write_reg_dma(nandc, NAND_EXEC_CMD, 1, NAND_BAM_NEXT_SGL); + write_reg_dma(nandc, NAND_FLASH_CMD, instrs, NAND_BAM_NEXT_SGL); + (q_op.cmd_reg == OP_BLOCK_ERASE) ? write_reg_dma(nandc, NAND_DEV0_CFG0, + 2, NAND_BAM_NEXT_SGL) : read_reg_dma(nandc, + NAND_FLASH_STATUS, 1, NAND_BAM_NEXT_SGL); + write_reg_dma(nandc, NAND_EXEC_CMD, 1, NAND_BAM_NEXT_SGL); read_reg_dma(nandc, NAND_FLASH_STATUS, 1, NAND_BAM_NEXT_SGL); ret = submit_descs(nandc); @@ -2928,56 +2952,7 @@ static int qcom_param_page_type_exec(struct nand_chip *chip, const struct nand_ return ret; } -static int qcom_erase_cmd_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 = {}; - int ret; - - ret = qcom_parse_instructions(chip, subop, &q_op); - if (ret) - return ret; - - 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, q_op.addr1_reg); - nandc_set_reg(chip, NAND_ADDR1, q_op.addr2_reg); - nandc_set_reg(chip, NAND_DEV0_CFG0, - host->cfg0_raw & ~(7 << CW_PER_PAGE)); - nandc_set_reg(chip, NAND_DEV0_CFG1, host->cfg1_raw); - nandc_set_reg(chip, NAND_EXEC_CMD, 1); - - write_reg_dma(nandc, NAND_FLASH_CMD, 3, NAND_BAM_NEXT_SGL); - write_reg_dma(nandc, NAND_DEV0_CFG0, 2, NAND_BAM_NEXT_SGL); - write_reg_dma(nandc, NAND_EXEC_CMD, 1, NAND_BAM_NEXT_SGL); - - ret = submit_descs(nandc); - if (ret) { - dev_err(nandc->dev, "failure in submitting erase descriptor\n"); - goto err_out; - } - - ret = qcom_wait_rdy_poll(chip, q_op.rdy_timeout_ms); - if (ret) - goto err_out; - -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, - NAND_OP_PARSER_PAT_CMD_ELEM(false), - NAND_OP_PARSER_PAT_WAITRDY_ELEM(false)), NAND_OP_PARSER_PATTERN( qcom_read_id_type_exec, NAND_OP_PARSER_PAT_CMD_ELEM(false), @@ -2994,10 +2969,10 @@ static const struct nand_op_parser qcom_op_parser = NAND_OP_PARSER( NAND_OP_PARSER_PAT_WAITRDY_ELEM(true), NAND_OP_PARSER_PAT_DATA_IN_ELEM(false, 512)), NAND_OP_PARSER_PATTERN( - qcom_erase_cmd_type_exec, - NAND_OP_PARSER_PAT_CMD_ELEM(false), - NAND_OP_PARSER_PAT_ADDR_ELEM(false, MAX_ADDRESS_CYCLE), + qcom_misc_cmd_type_exec, NAND_OP_PARSER_PAT_CMD_ELEM(false), + NAND_OP_PARSER_PAT_ADDR_ELEM(true, MAX_ADDRESS_CYCLE), + NAND_OP_PARSER_PAT_CMD_ELEM(true), NAND_OP_PARSER_PAT_WAITRDY_ELEM(false)), ); @@ -3018,7 +2993,9 @@ static int qcom_check_op(struct nand_chip *chip, instr->ctx.cmd.opcode != NAND_CMD_ERASE1 && instr->ctx.cmd.opcode != NAND_CMD_ERASE2 && instr->ctx.cmd.opcode != NAND_CMD_STATUS && - instr->ctx.cmd.opcode != NAND_CMD_PAGEPROG) + instr->ctx.cmd.opcode != NAND_CMD_PAGEPROG && + instr->ctx.cmd.opcode != NAND_CMD_READ0 && + instr->ctx.cmd.opcode != NAND_CMD_READSTART) return -EOPNOTSUPP; break; default: