Victor Lim has uploaded this change for review.

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flashchips: Add chip models GD25LB256F/GD25LR256F

GD25LB256F: 1.8V 256Mbit
https://www.gigadevice.com.cn/Public/Uploads/uploadfile/files/20230926/DS-00978-GD25LB256F-Rev1.0.pdf

GD25LR256F: 1.8V 256Mbit with RPMC.
https://www.gigadevice.com/message-board?cid=39&id=3171&file_type=Datasheet&file_name=GD25LR256F

Tested Erase, write, read, and protection.

Change-Id: I0fbd270a57999d4131816c48470588bb7ec22d37
Signed-off-by: Victor <vlim@gigadevice.com>
---
M flashchips.c
1 file changed, 57 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/54/83254/1

diff --git a/flashchips.c b/flashchips.c
index aa16c50..b6110de 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -6953,6 +6953,63 @@
 	},
 
 	{
+		.vendor		= "GigaDevice",
+		.name		= "GD25LB256F/GD25LR256F",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= GIGADEVICE_ID,
+		.model_id	= GIGADEVICE_GD25LQ255E,
+		.total_size	= 32768,
+		.page_size	= 256,
+		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44 */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_WRSR_EXT2 | FEATURE_4BA,
+		.tested		= TEST_OK_PREWB,
+		.probe		= PROBE_SPI_RDID,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 8192} },
+				.block_erase = SPI_BLOCK_ERASE_21,
+			}, {
+				.eraseblocks = { {4 * 1024, 8192} },
+				.block_erase = SPI_BLOCK_ERASE_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 1024} },
+				.block_erase = SPI_BLOCK_ERASE_5C,
+			}, {
+				.eraseblocks = { {32 * 1024, 1024} },
+				.block_erase = SPI_BLOCK_ERASE_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 512} },
+				.block_erase = SPI_BLOCK_ERASE_DC,
+			}, {
+				.eraseblocks = { {64 * 1024, 512} },
+				.block_erase = SPI_BLOCK_ERASE_D8,
+			}, {
+				.eraseblocks = { {32 * 1024 * 1024, 1} },
+				.block_erase = SPI_BLOCK_ERASE_60,
+			}, {
+				.eraseblocks = { {32 * 1024 * 1024, 1} },
+				.block_erase = SPI_BLOCK_ERASE_C7,
+			}
+		},
+		.printlock	= SPI_PRETTYPRINT_STATUS_REGISTER_BP4_SRWD,
+		.unlock		= SPI_DISABLE_BLOCKPROTECT_BP4_SRWD, /* TODO: 2nd status reg (read with 0x35) */
+		.write		= SPI_CHIP_WRITE256,
+		.read		= SPI_CHIP_READ, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {1650, 2000},
+		.reg_bits	=
+		{
+			.srp    = {STATUS1, 7, RW},
+			.srl    = {STATUS2, 0, RW},
+			.bp     = {{STATUS1, 2, RW}, {STATUS1, 3, RW}, {STATUS1, 4, RW}, {STATUS1, 5, RW}},
+			.tb     = {STATUS1, 6, RW}, /* BP4 */
+			.cmp    = {STATUS2, 6, RW},
+		},
+		.decode_range	= DECODE_RANGE_SPI25,
+	},
+
+	{
 		.vendor         = "GigaDevice",
 		.name           = "GD25LR512ME",
 		.bustype        = BUS_SPI,

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