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[211.75.127.162]) by smtp.gmail.com with ESMTPSA id x8-20020a05600c2a4800b003f9bd9e3226sm7497380wme.7.2023.07.13.03.51.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Jul 2023 03:51:17 -0700 (PDT) Received: from linux-patcher.mp600.macronix.com (linux-patcher [172.17.236.35]) by twhmp6px (Postfix) with ESMTPS id D8210818EE; Thu, 13 Jul 2023 18:50:40 +0800 (CST) From: Jaime Liao To: linux-mtd@lists.infradead.org, tudor.ambarus@linaro.org, pratyush@kernel.org, michael@walle.cc, miquel.raynal@bootlin.com Cc: leoyu@mxic.com.tw, JaimeLiao Subject: [PATCH v1 2/3] mtd: spi-nor: Add features support by parse sfdp Date: Thu, 13 Jul 2023 18:50:57 +0800 Message-Id: <20230713105058.101321-3-jaimeliao.tw@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230713105058.101321-1-jaimeliao.tw@gmail.com> References: <20230713105058.101321-1-jaimeliao.tw@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230713_035120_762753_36DEE569 X-CRM114-Status: GOOD ( 11.40 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org From: JaimeLiao Add SECT_4K, DUAL_READ, QUAD_READ, OCTAL_DTR_READ feature checking by parsing sfdp tables. Signed-off-by: JaimeLiao --- drivers/mtd/spi-nor/sfdp.c | 25 +++++++++++++++++++++++++ drivers/mtd/spi-nor/sfdp.h | 2 ++ 2 files changed, 27 insertions(+) diff --git a/drivers/mtd/spi-nor/sfdp.c b/drivers/mtd/spi-nor/sfdp.c index b3b11dfed789..cff3e9d6d061 100644 --- a/drivers/mtd/spi-nor/sfdp.c +++ b/drivers/mtd/spi-nor/sfdp.c @@ -463,6 +463,24 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor, /* Fix endianness of the BFPT DWORDs. */ le32_to_cpu_array(bfpt.dwords, BFPT_DWORD_MAX); + /* Checking Sector Size 4K */ + switch (bfpt.dwords[SFDP_DWORD(1)] & BFPT_DWORD1_SECT_SIZE_MASK ) { + case BFPT_DWORD1_SUPPORT_SECT_4K: + nor->flags |= SNOR_F_SECT_4K; + default: + break; + } + + /* Checking 1-1-2 Fast Read */ + if (bfpt.dwords[SFDP_DWORD(1)] & BFPT_DWORD1_FAST_READ_1_1_2) { + nor->flags |= SNOR_F_DUAL_READ; + } + + /* Checking 1-1-4 Fast Read */ + if (bfpt.dwords[SFDP_DWORD(1)] & BFPT_DWORD1_FAST_READ_1_1_4) { + nor->flags |= SNOR_F_QUAD_READ; + } + /* Number of address bytes. */ switch (bfpt.dwords[SFDP_DWORD(1)] & BFPT_DWORD1_ADDRESS_BYTES_MASK) { case BFPT_DWORD1_ADDRESS_BYTES_3_ONLY: @@ -1218,6 +1236,7 @@ static int spi_nor_parse_profile1(struct spi_nor *nor, } #define SCCR_DWORD22_OCTAL_DTR_EN_VOLATILE BIT(31) +#define SCCR_DWORD22_OCTAL_DTR_MODE BIT(23) /** * spi_nor_parse_sccr() - Parse the Status, Control and Configuration Register @@ -1264,6 +1283,12 @@ static int spi_nor_parse_sccr(struct spi_nor *nor, dwords[SFDP_DWORD(22)])) nor->flags |= SNOR_F_IO_MODE_EN_VOLATILE; + if (FIELD_GET(SCCR_DWORD22_OCTAL_DTR_MODE, + dwords[SFDP_DWORD(22)])) { + nor->flags |= SNOR_F_OCTAL_DTR_READ; + nor->flags |= SNOR_F_OCTAL_DTR_PP; + } + out: kfree(dwords); return ret; diff --git a/drivers/mtd/spi-nor/sfdp.h b/drivers/mtd/spi-nor/sfdp.h index 6eb99e1cdd61..84a98e3f8710 100644 --- a/drivers/mtd/spi-nor/sfdp.h +++ b/drivers/mtd/spi-nor/sfdp.h @@ -31,6 +31,8 @@ struct sfdp_bfpt { #define BFPT_DWORD_MAX_JESD216B 16 /* 1st DWORD. */ +#define BFPT_DWORD1_SECT_SIZE_MASK GENMASK(1, 0) +#define BFPT_DWORD1_SUPPORT_SECT_4K (0x1UL << 0) #define BFPT_DWORD1_FAST_READ_1_1_2 BIT(16) #define BFPT_DWORD1_ADDRESS_BYTES_MASK GENMASK(18, 17) #define BFPT_DWORD1_ADDRESS_BYTES_3_ONLY (0x0UL << 17) -- 2.25.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/