flashchips: Add support for Fudan SPI flash chips

Signed-off-by: Jakob Petersson <github@jakobpetersson.se>
Change-Id: I8045ecb8778fd6111fcccc075e69928f131a926a
Reviewed-on: https://review.coreboot.org/c/flashrom/+/46513
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Nikolai Artemiev <nartemiev@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 282 insertions, 0 deletions

diff --git a/flashchips.c b/flashchips.c
index 7d10abf5..48efb851 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -5691,6 +5691,278 @@ const struct flashchip flashchips[] = {
 	},
 
 	{
+		.vendor		= "Fudan",
+		.name		= "FM25F005",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= FUDAN_ID_NOPREFIX,
+		.model_id	= FUDAN_FM25F005,
+		.total_size	= 64,
+		.page_size	= 256,
+		/* OTP: 256B total; enter 0x3A */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 16} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 2} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 1} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {64 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {64 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_bp2_tb_bpl,
+		.unlock		= spi_disable_blockprotect_bp2_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B), dual I/O  (0x3B) supported */
+		.voltage	= {2700, 3600}, /* 2.3-2.7V acceptable results in lower performance */
+	},
+
+	{
+		.vendor		= "Fudan",
+		.name		= "FM25F01",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= FUDAN_ID_NOPREFIX,
+		.model_id	= FUDAN_FM25F01,
+		.total_size	= 128,
+		.page_size	= 256,
+		/* OTP: 256B total; enter 0x3A */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 32} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 4} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 2} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {128 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {128 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_bp2_tb_bpl,
+		.unlock		= spi_disable_blockprotect_bp2_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B), dual I/O  (0x3B) supported */
+		.voltage	= {2700, 3600}, /* 2.3-2.7V acceptable results in lower performance */
+	},
+
+	{
+		.vendor		= "Fudan",
+		.name		= "FM25F02(A)",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= FUDAN_ID_NOPREFIX,
+		.model_id	= FUDAN_FM25F02,
+		.total_size	= 256,
+		.page_size	= 256,
+		/* OTP: 256B total; enter 0x3A, (A version only:) read ID 0x4B */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 64} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 8} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 4} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {1024 * 256, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {1024 * 256, 1} },
+				.block_erase = spi_block_erase_c7,
+			},
+		},
+		.printlock	= spi_prettyprint_status_register_bp2_tb_bpl,
+		.unlock		= spi_disable_blockprotect_bp2_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B), dual I/O  (0x3B) supported */
+		.voltage	= {2700, 3600}, /* 2.3-2.7V acceptable results in lower performance */
+	},
+
+	{
+		.vendor		= "Fudan",
+		.name		= "FM25F04(A)",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= FUDAN_ID_NOPREFIX,
+		.model_id	= FUDAN_FM25F04,
+		.total_size	= 512,
+		.page_size	= 256,
+		/* OTP: 256B total; enter 0x3A, (A version only:) read ID 0x4B */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 128} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 16} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 8} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {1024 * 512, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {1024 * 512, 1} },
+				.block_erase = spi_block_erase_c7,
+			},
+		},
+		.printlock	= spi_prettyprint_status_register_bp2_tb_bpl,
+		.unlock		= spi_disable_blockprotect_bp2_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B), dual I/O  (0x3B) supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Fudan",
+		.name		= "FM25Q08",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= FUDAN_ID_NOPREFIX,
+		.model_id	= FUDAN_FM25Q08,
+		.total_size	= 1024,
+		.page_size	= 256,
+		/* supports SFDP */
+		/* OTP: 1024B total; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		/* QPI enable 0x38, disable 0xFF */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 256} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 32} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 16} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			},
+		},
+		.printlock	= spi_prettyprint_status_register_bp2_tb_bpl, /* bit6 selects size of protected blocks; TODO: SR2 */
+		.unlock		= spi_disable_blockprotect_bp2_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Fudan",
+		.name		= "FM25Q16",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= FUDAN_ID_NOPREFIX,
+		.model_id	= FUDAN_FM25Q16,
+		.total_size	= 2048,
+		.page_size	= 256,
+		/* supports SFDP */
+		/* OTP: 1024B total; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		/* QPI enable 0x38, disable 0xFF */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 512} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 64} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 32} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {2 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {2 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_bp2_tb_bpl, /* bit6 selects size of protected blocks; TODO: SR2 */
+		.unlock		= spi_disable_blockprotect_bp2_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Fudan",
+		.name		= "FM25Q32",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= FUDAN_ID_NOPREFIX,
+		.model_id	= FUDAN_FM25Q32,
+		.total_size	= 4096,
+		.page_size	= 256,
+		/* supports SFDP */
+		/* OTP: 1024B total; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		/* QPI enable 0x38, disable 0xFF */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 1024} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 128} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 64} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {4 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {4 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			},
+		},
+		.printlock	= spi_prettyprint_status_register_bp2_tb_bpl, /* bit6 selects size of protected blocks; TODO: SR2 */
+		.unlock		= spi_disable_blockprotect_bp2_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
 		.vendor		= "Fujitsu",
 		.name		= "MBM29F004BC",
 		.bustype	= BUS_PARALLEL,
diff --git a/flashchips.h b/flashchips.h
index 5b7937f2..87aedc27 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -329,6 +329,16 @@
 #define FIDELIX_FM25Q32		0x3216
 #define FIDELIX_FM25Q64		0x3217
 
+#define FUDAN_ID		0x7F7F7F7F7F7F7FA1	/* Shanghai Fudan Microelectronics resides in bank 8 */
+#define FUDAN_ID_NOPREFIX	0xA1	/* Fudan, missing 0x7F prefix */
+#define FUDAN_FM25F005		0x3110
+#define FUDAN_FM25F01		0x3111
+#define FUDAN_FM25F02		0x3112	/* Same as FM25F02A */
+#define FUDAN_FM25F04		0x3113	/* Same as FM25F04A */
+#define FUDAN_FM25Q08		0x4014
+#define FUDAN_FM25Q16		0x4015
+#define FUDAN_FM25Q32		0x4016
+
 #define FUJITSU_ID		0x04	/* Fujitsu */
 #define FUJITSU_MBM29DL400BC	0x0F
 #define FUJITSU_MBM29DL400TC	0x0C