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[211.75.127.162]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fbb6ad4bc9sm22010445ad.286.2024.07.09.18.17.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Jul 2024 18:17:02 -0700 (PDT) Received: from hqs-appsw-a2o.mp600.macronix.com (linux-patcher [172.17.236.67]) by twhmp6px (Postfix) with ESMTPS id 9157880B36; Wed, 10 Jul 2024 09:26:27 +0800 (CST) From: Cheng Ming Lin To: miquel.raynal@bootlin.com, vigneshr@ti.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Cc: richard@nod.at, alvinzhou@mxic.com.tw, leoyu@mxic.com.tw, Cheng Ming Lin Subject: [PATCH 1/3] include/linux/mtd/spinand.h: Add fixups for spinand Date: Wed, 10 Jul 2024 09:15:39 +0800 Message-Id: <20240710011541.342682-2-linchengming884@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240710011541.342682-1-linchengming884@gmail.com> References: <20240710011541.342682-1-linchengming884@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240709_181703_778940_224B2223 X-CRM114-Status: GOOD ( 11.51 ) X-Spam-Score: -1.8 (-) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: From: Cheng Ming Lin Add struct spi_nand_fixups as SPI NAND fixup hooks. To determine whether the Plane Select bit should be inserted into the column address in core.c, add the member struct spinand_info to struct spinand_device to ascertain whether the device has fixups. 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To determine whether the Plane Select bit should be inserted into the column address in core.c, add the member struct spinand_info to struct spinand_device to ascertain whether the device has fixups. Signed-off-by: Cheng Ming Lin --- include/linux/mtd/spinand.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h index 5c19ead60499..c079c6ac1541 100644 --- a/include/linux/mtd/spinand.h +++ b/include/linux/mtd/spinand.h @@ -354,6 +354,7 @@ struct spinand_info { } op_variants; int (*select_target)(struct spinand_device *spinand, unsigned int target); + const struct spi_nand_fixups *fixups; }; #define SPINAND_ID(__method, ...) \ @@ -379,6 +380,9 @@ struct spinand_info { #define SPINAND_SELECT_TARGET(__func) \ .select_target = __func, +#define SPINAND_PLANE_SELECT_BIT(__func) \ + .fixups = __func, + #define SPINAND_INFO(__model, __id, __memorg, __eccreq, __op_variants, \ __flags, ...) \ { \ @@ -398,6 +402,18 @@ struct spinand_dirmap { struct spi_mem_dirmap_desc *rdesc_ecc; }; +/** + * struct spi_nand_fixups - SPI NAND fixup hooks + * @write_to_cache: program load requires Plane Select bit in CADD. + * @read_from_cache: read from cache requires Plane Select bit in CADD. + */ +struct spi_nand_fixups { + unsigned int (*write_to_cache)(struct spinand_device *spinand, + const struct nand_page_io_req *req, unsigned int column); + u16 (*read_from_cache)(struct spinand_device *spinand, + const struct nand_page_io_req *req, u16 column); +}; + /** * struct spinand_device - SPI NAND device instance * @base: NAND device instance @@ -449,6 +465,7 @@ struct spinand_device { u8 *databuf; u8 *oobbuf; u8 *scratchbuf; + const struct spinand_info *info; const struct spinand_manufacturer *manufacturer; void *priv; };