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Sun, 25 May 2025 07:59:43 -0700 (PDT) Received: from [127.0.0.1] ([2001:250:5800:1000::3fc8]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2343f8e2fbesm12204845ad.250.2025.05.25.07.59.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 25 May 2025 07:59:43 -0700 (PDT) From: Zixian Zeng Date: Sun, 25 May 2025 22:58:42 +0800 Subject: [PATCH v2 2/3] mtd: spi-nor: Add GD25LB512ME GigaDevice flash_info Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250525-sfg-spifmc-v2-2-a3732b6f5ab4@gmail.com> References: <20250525-sfg-spifmc-v2-0-a3732b6f5ab4@gmail.com> In-Reply-To: <20250525-sfg-spifmc-v2-0-a3732b6f5ab4@gmail.com> To: Tudor Ambarus , Pratyush Yadav , Michael Walle , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Chen Wang , Inochi Amaoto , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Longbin Li Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, sophgo@lists.linux.dev, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, Zixian Zeng X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1748185167; l=5052; i=sycamoremoon376@gmail.com; s=20250113; h=from:subject:message-id; bh=NWZjWwn9bggPj1MEcmOLOCAvWAB+LiAQaYSOX4JjTAY=; b=hBZ9eo0GjgMXLNujvFODlvmX5r9TUOBoz1q/wOVzuySCOg8us5GMhMWN2ZdSLtG7KtKdhmW1i YzuMbOt+6UhBFuwE+pW+lBOlRNFaYBAQKooQBz4XRnuFNlbPN48k0bj X-Developer-Key: i=sycamoremoon376@gmail.com; a=ed25519; pk=OYfH6Z2Nx3aU1r0UZdvhskmddV6KC6V1nyFjsQQt4J8= Add GD25LB512ME SPI-NOR flash information. The following SFDP dump was generated after applying the current commit. ------------------------------------------------------------------------ This flash is populated on the SG2042 Pioneer board and was tested at 100MHz frequency using the spi-sg2044-nor SPI controller. root@localhost ~ # cat /sys/bus/spi/devices/spi0.0/spi-nor/partname gd25lb512me root@localhost ~ # cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id c8671a root@localhost ~ # cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer gigadevice root@localhost ~ # xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 53464450060102ff00060110300000ffc8000103900000ff84000102c000 00ffffffffffffffffffffffffffffffffffe520eaffffffff1f44eb086b 003b00bbfeffffffffff00ffffff44eb0c200f5210d800ffd531b1fe83d6 1458ec6006337a757a7504bdd55c2906740008500001ffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffff002050169df9 8156d9c8ffffffffffffffffffffffffffffffffffffffffffffffffffff fffffffffffffffffffffffff38ff0ff215cdcff root@localhost ~ # sha256sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 859eb314b0500aa3e3dc5a1ad514f1013387c7aaa40147ed2d616ffc4b6d851c /sys/bus/spi/devices/spi0.0/spi-nor/sfdp root@localhost ~ # #Dump debugfs data root@localhost ~ # cat /sys/kernel/debug/spi-nor/spi0.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-4S opcode 0x6c mode cycles 0 dummy cycles 8 1S-4S-4S opcode 0xec mode cycles 2 dummy cycles 4 4S-4S-4S opcode 0xec mode cycles 2 dummy cycles 4 Supported page program modes by the flash 1S-1S-1S opcode 0x12 1S-1S-4S opcode 0x34 1S-4S-4S opcode 0x3e root@localhost ~ # cat /sys/kernel/debug/spi-nor/spi0.0/params name gd25lb512me id c8 67 1a ff c8 67 size 64.0 MiB write size 1 page size 256 address nbytes 4 flags HAS_SR_TB | 4B_OPCODES | HAS_4BAIT | HAS_LOCK | HAS_16BIT_SR | SOFT_RESET opcodes read 0x13 dummy cycles 0 erase 0x21 program 0x12 8D extension none protocols read 1S-1S-1S write 1S-1S-1S register 1S-1S-1S erase commands 21 (4.00 KiB) [1] 5c (32.0 KiB) [2] dc (64.0 KiB) [3] c7 (64.0 MiB) sector map region (in hex) | erase mask | overlaid ------------------+------------+---------- 00000000-03ffffff | [ 1 ] | no root@localhost ~ # dd if=/dev/urandom of=./spi_test bs=1M count=2 2+0 records in 2+0 records out 2097152 bytes (2.1 MB, 2.0 MiB) copied, 0.0279486 s, 75.0 MB/s root@localhost ~ # mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash root@localhost ~ # mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@localhost ~ # hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 root@localhost ~ # sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read root@localhost ~ # mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash root@localhost ~ # mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@localhost ~ # sha256sum spi* a2ebfaebe38974847a4efb628b29a72f1d50e78c17318869d8954b033dc32e5d spi_read a2ebfaebe38974847a4efb628b29a72f1d50e78c17318869d8954b033dc32e5d spi_test root@localhost ~ # mtd_debug info /dev/mtd0 mtd.type = MTD_NORFLASH mtd.flags = MTD_CAP_NORFLASH mtd.size = 67108864 (64M) mtd.erasesize = 4096 (4K) mtd.writesize = 1 mtd.oobsize = 0 regions = 0 Signed-off-by: Zixian Zeng --- drivers/mtd/spi-nor/gigadevice.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/mtd/spi-nor/gigadevice.c b/drivers/mtd/spi-nor/gigadevice.c index ef1edd0add70e6ca501620798a779d621d6bb00d..223b2f598ecd651ce8df6789dfbaf938c534f94f 100644 --- a/drivers/mtd/spi-nor/gigadevice.c +++ b/drivers/mtd/spi-nor/gigadevice.c @@ -33,6 +33,15 @@ static const struct spi_nor_fixups gd25q256_fixups = { .post_bfpt = gd25q256_post_bfpt, }; +static void gd25lb512me_default_init(struct spi_nor *nor) +{ + nor->params->quad_enable = spi_nor_sr1_bit6_quad_enable; +} + +static const struct spi_nor_fixups gd25lb512me_fixups = { + .default_init = gd25lb512me_default_init, +}; + static const struct flash_info gigadevice_nor_parts[] = { { .id = SNOR_ID(0xc8, 0x40, 0x15), @@ -82,6 +91,14 @@ static const struct flash_info gigadevice_nor_parts[] = { .size = SZ_16M, .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB, .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ, + }, { + .id = SNOR_ID(0xc8, 0x67, 0x1a), + .name = "gd25lb512me", + .size = SZ_64M, + .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB, + .no_sfdp_flags = SECT_4K | SPI_NOR_QUAD_READ, + .fixups = &gd25lb512me_fixups, + .fixup_flags = SPI_NOR_4B_OPCODES, }, };