UPSTREAM: spi: spi-sg2044-nor: Add SPI-NOR controller for SG2042

Add support for SOPHGO SG2042 SPI-NOR flash controller.

Signed-off-by: Zixian Zeng <[email protected]>
Reviewed-by: Chen Wang <[email protected]> & Tested-by: Chen Wang
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Chen Wang <[email protected]> & Tested-by: Chen Wang
Signed-off-by: Mark Brown <[email protected]>
(cherry picked from commit f6b1594)
Signed-off-by: Han Gao <[email protected]>

Author: sycamoremoon

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);