From nobody Sat Nov 30 06:50:31 2024 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A2ED718BC2C; Thu, 12 Sep 2024 06:16:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726121777; cv=none; b=rESWy7Wq/EvlInIVoA+FyyzMSGtTeawdvv0dct3HtLBJsTH7Ls0C3OAS2EGLZZDDhOEFRlWQvCW3uB9kMDmhA2CFjKW0KxxpozHpvDDuszxQILTSKsZ9jF6qEw6VdT4z/mMxqEBtoP2HO7AHyh/blu5DEveYZ7u/HrzAcufGFd4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726121777; c=relaxed/simple; bh=PK+z9FVMPrCuM3JQrPNZtI1g6nUAEoJmt+uA3qbMK9Y=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=nD/Lx95VsxJoqYG5hm5Pxw8jcDhOvqN3vGGpCWL75x54fadQNJqr7m0Fe5cmGQXFermkQOIpZtGp3hv3E6B1YNCSdnkLtYzng9/mj4ejrKtp8m74hVIDpERaNEZI84+6besrw2g9E5mngp4h38bjeuvOakfaCEB1VQ0i+Cm/Aw4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=ffLCVmyt; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="ffLCVmyt" Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 48C2Kx0U013919; Thu, 12 Sep 2024 06:15:54 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= ULvIzO2hcCDSlb1v8oVTIVXgzvmgFY3AD/j5mhrnyVA=; b=ffLCVmytlA4tJIJB LeTqsJVA7yAu1Q0vgVRYrffu85P9G2mCftl4xM5aEVYDinnLu3LRDzlZ7Sz9KZaH R6iLLXDBxerAOOk9oWghpG4XmRjzMC+fHb/q+MAZKZUHLDKLESMHa80SPPdDFC/X R4q05CjugjhCkgGPFCI1TEorV/2DIf8dh2p7s+zFEEFijGD2amo9xDlL+VrTEJFc Pm70VpNox5lzbnehguICZ/AITJ7zuU2wGPtxg7XpypmsfT78+0r/1xsBHEpZcWEj 562hIeST39Qk3UoTLd2FazWkzj16i3CbSaIGgikfxiC87yXtsTljAgbAIIbpfD25 hnnnzQ== Received: from nasanppmta05.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 41gy8p4435-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 Sep 2024 06:15:53 +0000 (GMT) Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 48C6FqAb003982 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 Sep 2024 06:15:52 GMT Received: from hu-mdalam-blr.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 11 Sep 2024 23:15:47 -0700 From: Md Sadre Alam To: , , , , , , , , , , , , , , , CC: , , Subject: [PATCH v9 5/8] mtd: rawnand: qcom: use FIELD_PREP and GENMASK Date: Thu, 12 Sep 2024 11:45:00 +0530 Message-ID: <20240912061503.3468147-6-quic_mdalam@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240912061503.3468147-1-quic_mdalam@quicinc.com> References: <20240912061503.3468147-1-quic_mdalam@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: fFp0SyXka2WLMUDW8FJis1WfvCa5UitH X-Proofpoint-ORIG-GUID: fFp0SyXka2WLMUDW8FJis1WfvCa5UitH X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 impostorscore=0 mlxscore=0 bulkscore=0 suspectscore=0 priorityscore=1501 mlxlogscore=999 lowpriorityscore=0 adultscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2408220000 definitions=main-2409120043 Content-Type: text/plain; charset="utf-8" Use the bitfield macro FIELD_PREP, and GENMASK to do the shift and mask in one go. This makes the code more readable. Signed-off-by: Md Sadre Alam --- Change in [v9] * In update_rw_regs() api added cpu_to_le32() macro to fix compilation issue reported by kernel test bot * In qcom_param_page_type_exec() api added cpu_to_le32() macro to fix compilation issue reported by kernel test bot =20 Change in [v8] * No change Change in [v7] * No change Change in [v6] * Added FIELD_PREP() and GENMASK() macro Change in [v5] * This patch was not included in [v1] Change in [v4] * This patch was not included in [v4] Change in [v3] * This patch was not included in [v3] Change in [v2] * This patch was not included in [v2] Change in [v1] * This patch was not included in [v1] drivers/mtd/nand/raw/qcom_nandc.c | 97 ++++++++++++++-------------- include/linux/mtd/nand-qpic-common.h | 31 +++++---- 2 files changed, 67 insertions(+), 61 deletions(-) diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_= nandc.c index 91f1eb781cb2..c1159dbc8eba 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -281,7 +281,7 @@ static void update_rw_regs(struct qcom_nand_host *host,= int num_cw, bool read, i (num_cw - 1) << CW_PER_PAGE); =20 cfg1 =3D cpu_to_le32(host->cfg1_raw); - ecc_bch_cfg =3D cpu_to_le32(1 << ECC_CFG_ECC_DISABLE); + ecc_bch_cfg =3D cpu_to_le32(ECC_CFG_ECC_DISABLE); } =20 nandc->regs->cmd =3D cmd; @@ -1494,42 +1494,41 @@ static int qcom_nand_attach_chip(struct nand_chip *= chip) host->cw_size =3D host->cw_data + ecc->bytes; bad_block_byte =3D mtd->writesize - host->cw_size * (cwperpage - 1) + 1; =20 - host->cfg0 =3D (cwperpage - 1) << CW_PER_PAGE - | host->cw_data << UD_SIZE_BYTES - | 0 << DISABLE_STATUS_AFTER_WRITE - | 5 << NUM_ADDR_CYCLES - | host->ecc_bytes_hw << ECC_PARITY_SIZE_BYTES_RS - | 0 << STATUS_BFR_READ - | 1 << SET_RD_MODE_AFTER_STATUS - | host->spare_bytes << SPARE_SIZE_BYTES; - - host->cfg1 =3D 7 << NAND_RECOVERY_CYCLES - | 0 << CS_ACTIVE_BSY - | bad_block_byte << BAD_BLOCK_BYTE_NUM - | 0 << BAD_BLOCK_IN_SPARE_AREA - | 2 << WR_RD_BSY_GAP - | wide_bus << WIDE_FLASH - | host->bch_enabled << ENABLE_BCH_ECC; - - host->cfg0_raw =3D (cwperpage - 1) << CW_PER_PAGE - | host->cw_size << UD_SIZE_BYTES - | 5 << NUM_ADDR_CYCLES - | 0 << SPARE_SIZE_BYTES; - - host->cfg1_raw =3D 7 << NAND_RECOVERY_CYCLES - | 0 << CS_ACTIVE_BSY - | 17 << BAD_BLOCK_BYTE_NUM - | 1 << BAD_BLOCK_IN_SPARE_AREA - | 2 << WR_RD_BSY_GAP - | wide_bus << WIDE_FLASH - | 1 << DEV0_CFG1_ECC_DISABLE; - - host->ecc_bch_cfg =3D !host->bch_enabled << ECC_CFG_ECC_DISABLE - | 0 << ECC_SW_RESET - | host->cw_data << ECC_NUM_DATA_BYTES - | 1 << ECC_FORCE_CLK_OPEN - | ecc_mode << ECC_MODE - | host->ecc_bytes_hw << ECC_PARITY_SIZE_BYTES_BCH; + host->cfg0 =3D FIELD_PREP(CW_PER_PAGE_MASK, (cwperpage - 1)) | + FIELD_PREP(UD_SIZE_BYTES_MASK, host->cw_data) | + FIELD_PREP(DISABLE_STATUS_AFTER_WRITE, 0) | + FIELD_PREP(NUM_ADDR_CYCLES_MASK, 5) | + FIELD_PREP(ECC_PARITY_SIZE_BYTES_RS, host->ecc_bytes_hw) | + FIELD_PREP(STATUS_BFR_READ, 0) | + FIELD_PREP(SET_RD_MODE_AFTER_STATUS, 1) | + FIELD_PREP(SPARE_SIZE_BYTES_MASK, host->spare_bytes); + + host->cfg1 =3D FIELD_PREP(NAND_RECOVERY_CYCLES_MASK, 7) | + FIELD_PREP(BAD_BLOCK_BYTE_NUM_MASK, bad_block_byte) | + FIELD_PREP(BAD_BLOCK_IN_SPARE_AREA, 0) | + FIELD_PREP(WR_RD_BSY_GAP_MASK, 2) | + FIELD_PREP(WIDE_FLASH, wide_bus) | + FIELD_PREP(ENABLE_BCH_ECC, host->bch_enabled); + + host->cfg0_raw =3D FIELD_PREP(CW_PER_PAGE_MASK, (cwperpage - 1)) | + FIELD_PREP(UD_SIZE_BYTES_MASK, host->cw_size) | + FIELD_PREP(NUM_ADDR_CYCLES_MASK, 5) | + FIELD_PREP(SPARE_SIZE_BYTES_MASK, 0); + + host->cfg1_raw =3D FIELD_PREP(NAND_RECOVERY_CYCLES_MASK, 7) | + FIELD_PREP(CS_ACTIVE_BSY, 0) | + FIELD_PREP(BAD_BLOCK_BYTE_NUM_MASK, 17) | + FIELD_PREP(BAD_BLOCK_IN_SPARE_AREA, 1) | + FIELD_PREP(WR_RD_BSY_GAP_MASK, 2) | + FIELD_PREP(WIDE_FLASH, wide_bus) | + FIELD_PREP(DEV0_CFG1_ECC_DISABLE, 1); + + host->ecc_bch_cfg =3D FIELD_PREP(ECC_CFG_ECC_DISABLE, !host->bch_enabled)= | + FIELD_PREP(ECC_SW_RESET, 0) | + FIELD_PREP(ECC_NUM_DATA_BYTES_MASK, host->cw_data) | + FIELD_PREP(ECC_FORCE_CLK_OPEN, 1) | + FIELD_PREP(ECC_MODE_MASK, ecc_mode) | + FIELD_PREP(ECC_PARITY_SIZE_BYTES_BCH_MASK, host->ecc_bytes_hw); =20 if (!nandc->props->qpic_version2) host->ecc_buf_cfg =3D 0x203 << NUM_STEPS; @@ -1882,21 +1881,21 @@ static int qcom_param_page_type_exec(struct nand_ch= ip *chip, const struct nand_ nandc->regs->addr0 =3D 0; nandc->regs->addr1 =3D 0; =20 - nandc->regs->cfg0 =3D cpu_to_le32(0 << CW_PER_PAGE - | 512 << UD_SIZE_BYTES - | 5 << NUM_ADDR_CYCLES - | 0 << SPARE_SIZE_BYTES); + host->cfg0 =3D FIELD_PREP(CW_PER_PAGE_MASK, 0) | + FIELD_PREP(UD_SIZE_BYTES_MASK, 512) | + FIELD_PREP(NUM_ADDR_CYCLES_MASK, 5) | + FIELD_PREP(SPARE_SIZE_BYTES_MASK, 0); =20 - nandc->regs->cfg1 =3D cpu_to_le32(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); + host->cfg1 =3D FIELD_PREP(NAND_RECOVERY_CYCLES_MASK, 7) | + FIELD_PREP(BAD_BLOCK_BYTE_NUM_MASK, 17) | + FIELD_PREP(CS_ACTIVE_BSY, 0) | + FIELD_PREP(BAD_BLOCK_IN_SPARE_AREA, 1) | + FIELD_PREP(WR_RD_BSY_GAP_MASK, 2) | + FIELD_PREP(WIDE_FLASH, 0) | + FIELD_PREP(DEV0_CFG1_ECC_DISABLE, 1); =20 if (!nandc->props->qpic_version2) - nandc->regs->ecc_buf_cfg =3D cpu_to_le32(1 << ECC_CFG_ECC_DISABLE); + nandc->regs->ecc_buf_cfg =3D cpu_to_le32(ECC_CFG_ECC_DISABLE); =20 /* configure CMD1 and VLD for ONFI param probing in QPIC v1 */ if (!nandc->props->qpic_version2) { diff --git a/include/linux/mtd/nand-qpic-common.h b/include/linux/mtd/nand-= qpic-common.h index 425994429387..e79c79775eb8 100644 --- a/include/linux/mtd/nand-qpic-common.h +++ b/include/linux/mtd/nand-qpic-common.h @@ -70,35 +70,42 @@ #define BS_CORRECTABLE_ERR_MSK 0x1f =20 /* NAND_DEVn_CFG0 bits */ -#define DISABLE_STATUS_AFTER_WRITE 4 +#define DISABLE_STATUS_AFTER_WRITE BIT(4) #define CW_PER_PAGE 6 +#define CW_PER_PAGE_MASK GENMASK(8, 6) #define UD_SIZE_BYTES 9 #define UD_SIZE_BYTES_MASK GENMASK(18, 9) -#define ECC_PARITY_SIZE_BYTES_RS 19 +#define ECC_PARITY_SIZE_BYTES_RS GENMASK(22, 19) #define SPARE_SIZE_BYTES 23 #define SPARE_SIZE_BYTES_MASK GENMASK(26, 23) #define NUM_ADDR_CYCLES 27 -#define STATUS_BFR_READ 30 -#define SET_RD_MODE_AFTER_STATUS 31 +#define NUM_ADDR_CYCLES_MASK GENMASK(29, 27) +#define STATUS_BFR_READ BIT(30) +#define SET_RD_MODE_AFTER_STATUS BIT(31) =20 /* NAND_DEVn_CFG0 bits */ -#define DEV0_CFG1_ECC_DISABLE 0 -#define WIDE_FLASH 1 +#define DEV0_CFG1_ECC_DISABLE BIT(0) +#define WIDE_FLASH BIT(1) #define NAND_RECOVERY_CYCLES 2 -#define CS_ACTIVE_BSY 5 +#define NAND_RECOVERY_CYCLES_MASK GENMASK(4, 2) +#define CS_ACTIVE_BSY BIT(5) #define BAD_BLOCK_BYTE_NUM 6 -#define BAD_BLOCK_IN_SPARE_AREA 16 +#define BAD_BLOCK_BYTE_NUM_MASK GENMASK(15, 6) +#define BAD_BLOCK_IN_SPARE_AREA BIT(16) #define WR_RD_BSY_GAP 17 -#define ENABLE_BCH_ECC 27 +#define WR_RD_BSY_GAP_MASK GENMASK(22, 17) +#define ENABLE_BCH_ECC BIT(27) =20 /* NAND_DEV0_ECC_CFG bits */ -#define ECC_CFG_ECC_DISABLE 0 -#define ECC_SW_RESET 1 +#define ECC_CFG_ECC_DISABLE BIT(0) +#define ECC_SW_RESET BIT(1) #define ECC_MODE 4 +#define ECC_MODE_MASK GENMASK(5, 4) #define ECC_PARITY_SIZE_BYTES_BCH 8 +#define ECC_PARITY_SIZE_BYTES_BCH_MASK GENMASK(12, 8) #define ECC_NUM_DATA_BYTES 16 #define ECC_NUM_DATA_BYTES_MASK GENMASK(25, 16) -#define ECC_FORCE_CLK_OPEN 30 +#define ECC_FORCE_CLK_OPEN BIT(30) =20 /* NAND_DEV_CMD1 bits */ #define READ_ADDR 0 --=20 2.34.1