flashchips: Add Macronix MX25V1635F support

See https://www.mxic.com.tw/Lists/Datasheet/Attachments/8662/MX25V1635F,%202.5V,%2016Mb,%20v1.4.pdf .

I've tested this patch with the MX25V1635F I have here, using serprog
and ftdi by (re)writing a few images to the flash and seeing if changes
were stored correctly. This also included erasing and rewriting the
memory with completely different data, so erase is tested, too.

Change-Id: I58ddaaa96ef410d50dde3aaa20376c5bbf0f370b
Signed-off-by: PoroCYon <p@pcy.be>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/73824
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
---
M flashchips.c
M include/flashchips.h
2 files changed, 56 insertions(+), 0 deletions(-)

diff --git a/flashchips.c b/flashchips.c
index ad0dbad..dc6e882 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -9644,6 +9644,41 @@
 		.read		= SPI_CHIP_READ, /* Fast read (0x0B) and multi I/O supported */
 		.voltage	= {2300, 3600},
 	},
+	{
+		.vendor		= "Macronix",
+		.name		= "MX25V1635F",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= MACRONIX_ID,
+		.model_id	= MACRONIX_MX25V1635F,
+		.total_size	= 2048,
+		.page_size	= 256,
+		/* OTP: 8KiB total; enter 0xB1, exit 0xC1 */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI | FEATURE_SCUR,
+		.tested		= TEST_OK_PREW,
+		.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,
+			}
+		},
+		.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	= {2300, 3600},
+	},
 
 	{
 		.vendor		= "Macronix",
diff --git a/include/flashchips.h b/include/flashchips.h
index 70ed544..aa59a6d 100644
--- a/include/flashchips.h
+++ b/include/flashchips.h
@@ -514,6 +514,7 @@
 #define MACRONIX_MX66L1G45G	0x201b	/* MX66L1G45G */
 #define MACRONIX_MX25V4035F	0x2313
 #define MACRONIX_MX25V8035F	0x2314
+#define MACRONIX_MX25V1635F	0x2315	/* MX25V1636E */
 #define MACRONIX_MX25U8032E	0x2534
 #define MACRONIX_MX25U1635E	0x2535
 #define MACRONIX_MX25U3235E	0x2536	/* Same as MX25U6435F */

