flashchips: Add IS25LP256 and IS25WP256

Tested IS25LP256 using Raspberry Pi and Dediprog SF600 programmers.
Tested IS25WP256 using Dediprog SF600.

Change-Id: Idf7a224abcde5f7935d9ef88309f78207de60a7a
Signed-off-by: David Hendricks <david.hendricks@gmail.com>
Reviewed-on: https://review.coreboot.org/29306
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/flashchips.c b/flashchips.c
index bbd5cad..d2a8d77 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -7376,6 +7376,56 @@
 
 	{
 		.vendor		= "ISSI",
+		.name		= "IS25LP256",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= ISSI_ID_SPI,
+		.model_id	= ISSI_IS25LP256,
+		.total_size	= 32768,
+		.page_size	= 256,
+		/* supports SFDP */
+		/* OTP: 1024B total; read 0x68; write 0x62, erase 0x64, read ID 0x4B */
+		/* FOUR_BYTE_ADDR: supports 4-bytes addressing mode */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_4BA | FEATURE_4BA_ENTER_EAR7,
+		.tested		= TEST_OK_PREW,
+		.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,
+				/* could also use spi_block_erase_d7 */
+			}, {
+				.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,
+			}
+		},
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {2300, 3600},
+	},
+
+	{
+		.vendor		= "ISSI",
 		.name		= "IS25WP032",
 		.bustype	= BUS_SPI,
 		.manufacture_id = ISSI_ID_SPI,
@@ -7502,6 +7552,56 @@
 
 	{
 		.vendor		= "ISSI",
+		.name		= "IS25WP256",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= ISSI_ID_SPI,
+		.model_id	= ISSI_IS25WP256,
+		.total_size	= 32768,
+		.page_size	= 256,
+		/* supports SFDP */
+		/* OTP: 1024B total; read 0x68; write 0x62, erase 0x64, read ID 0x4B */
+		/* FOUR_BYTE_ADDR: supports 4-bytes addressing mode */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_4BA | FEATURE_4BA_ENTER_EAR7,
+		.tested		= TEST_OK_PREW,
+		.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,
+				/* could also use spi_block_erase_d7 */
+			}, {
+				.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,
+			}
+		},
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {1650, 1950},
+	},
+
+	{
+		.vendor		= "ISSI",
 		.name		= "IS29GL064B",
 		.bustype	= BUS_PARALLEL,
 		.manufacture_id	= ISSI_ID,