[M] Change in flashrom[main]: flashchips: Add write-protect support for MXIC MX25U25643G

[Anastasia Klimchuk (Code Review)]

Anastasia Klimchuk has submitted this change. ( https://review.coreboot.org/c/flashrom/+/78142?usp=email )

Change subject: flashchips: Add write-protect support for MXIC MX25U25643G
......................................................................

flashchips: Add write-protect support for MXIC MX25U25643G

The MX25U25643G has a WPSEL bit in the security register, but the MX25U25635F does not.
Therefore, take them apart.

We have tested --wp-enable, --wp-disable, --wp-list and --wp-range
commands for write-protect feature.

The MX25U25643G has been tested by ch341a programmer : read, write,
erase and wp.

MX25U25643G datasheet is available at the following URL:
https://www.mxic.com.tw/en-us/products/NOR-Flash/Serial-NOR-Flash/Pages/spec...

MX25U25635F datasheet is available at the following URL:
https://www.macronix.com/en-us/products/NOR-Flash/Serial-NOR-Flash/Pages/spe...

Change-Id: I43de9ed123b9736c04d070754bcf9c32be5697ad
Signed-off-by: rogeryou 
Reviewed-on: https://review.coreboot.org/c/flashrom/+/78142
Reviewed-by: Anastasia Klimchuk 
Tested-by: build bot (Jenkins) 
---
M flashchips.c
1 file changed, 58 insertions(+), 1 deletion(-)

Approvals:
  Anastasia Klimchuk: Looks good to me, approved
  build bot (Jenkins): Verified

diff --git a/flashchips.c b/flashchips.c
index db20cba..e156ffb 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -10207,7 +10207,7 @@

{
    	.vendor		= "Macronix",
-		.name		= "MX25U25635F/MX25U25643G",
+		.name		= "MX25U25635F",
    	.bustype	= BUS_SPI,
    	.manufacture_id	= MACRONIX_ID,
    	.model_id	= MACRONIX_MX25U25635F,
@@ -10256,6 +10256,63 @@

{
    	.vendor		= "Macronix",
+		.name		= "MX25U25643G",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= MACRONIX_ID,
+		.model_id	= MACRONIX_MX25U25635F,
+		.total_size	= 32768,
+		.page_size	= 256,
+		/* OTP: 512B total; enter 0xB1, exit 0xC1 */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI | FEATURE_4BA | FEATURE_CFGR | FEATURE_SCUR,
+		.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,
+			}
+		},
+		/* TODO: security register */
+		.printlock	= SPI_PRETTYPRINT_STATUS_REGISTER_BP3_SRWD, /* bit6 is quad enable */
+		.unlock		= SPI_DISABLE_BLOCKPROTECT_BP3_SRWD,
+		.write		= SPI_CHIP_WRITE256, /* Multi I/O supported */
+		.read		= SPI_CHIP_READ, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {1650, 2000},
+		.reg_bits	=
+		{
+			.srp    = {STATUS1, 7, RW},
+			.bp     = {{STATUS1, 2, RW}, {STATUS1, 3, RW}, {STATUS1, 4, RW}, {STATUS1, 5, RW}},
+			.tb     = {CONFIG, 3, OTP},
+			.wps    = {SECURITY, 7, OTP}, /* This bit is set by WPSEL command */
+		},
+		.decode_range	= DECODE_RANGE_SPI25,
+	},
+
+	{
+		.vendor		= "Macronix",
    	.name		= "MX25U3235E/F",
    	.bustype	= BUS_SPI,
    	.manufacture_id	= MACRONIX_ID,