linux-kernel - [PATCH v4 3/4] spi: spi-sg2044-nor: Add SPI-NOR controller for SG2042

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Message-Id: <20250720-sfg-spifmc-v4-3-033188ad801e@gmail.com>
Date: Sun, 20 Jul 2025 16:31:45 +0800
From: Zixian Zeng <sycamoremoon376@...il.com>
To: Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Pratyush Yadav <pratyush@...nel.org>, Michael Walle <mwalle@...nel.org>, 
 Miquel Raynal <miquel.raynal@...tlin.com>, 
 Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>, 
 Chen Wang <unicorn_wang@...look.com>, Inochi Amaoto <inochiama@...il.com>, 
 Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>, Longbin Li <looong.bin@...il.com>
Cc: linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 sophgo@...ts.linux.dev, linux-spi@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org, 
 Conor Dooley <conor.dooley@...rochip.com>, 
 Zixian Zeng <sycamoremoon376@...il.com>
Subject: [PATCH v4 3/4] spi: spi-sg2044-nor: Add SPI-NOR controller for
 SG2042

Add support for SOPHGO SG2042 SPI-NOR flash controller.

Signed-off-by: Zixian Zeng <sycamoremoon376@...il.com>
---
 drivers/spi/spi-sg2044-nor.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-sg2044-nor.c b/drivers/spi/spi-sg2044-nor.c
index 0ef569eb28b7609df1f23d89a6b3e7afc2569c80..af48b1fcda930f3cd0bdd57d80e076918d94010d 100644
--- a/drivers/spi/spi-sg2044-nor.c
+++ b/drivers/spi/spi-sg2044-nor.c
@@ -485,8 +485,14 @@ static const struct sg204x_spifmc_chip_info sg2044_chip_info = {
 	.rd_fifo_int_trigger_level = SPIFMC_TRAN_CSR_FIFO_TRG_LVL_8_BYTE,
 };
 
+static const struct sg204x_spifmc_chip_info sg2042_chip_info = {
+	.has_opt_reg = false,
+	.rd_fifo_int_trigger_level = SPIFMC_TRAN_CSR_FIFO_TRG_LVL_1_BYTE,
+};
+
 static const struct of_device_id sg2044_spifmc_match[] = {
 	{ .compatible = "sophgo,sg2044-spifmc-nor", .data = &sg2044_chip_info },
+	{ .compatible = "sophgo,sg2042-spifmc-nor", .data = &sg2042_chip_info },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sg2044_spifmc_match);

-- 
2.49.0