Add support for Eon EN25P Series

These are very similar to Eon's EN25B series but unlike those the
EN25P has uniform sectors (of 32 and 64 kB). They can not be
distinguished by RDID alone but the RES and REMS IDs are different
and hence could be detected eventually in the future. This patch
also refines tiny bits of the EN25B series.

The series includes:
 - EN25P05
 - EN25P10
 - EN25P20
 - EN25P40
 - EN25P80
 - EN25P16
 - EN25P32
 - EN25P64

Corresponding to flashrom svn r1870.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>

2 files changed, 275 insertions, 28 deletions

diff --git a/flashchips.c b/flashchips.c
index 951ced1..86546d7 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -3332,7 +3332,7 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3366,7 +3366,37 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Eon",
+		.name		= "EN25P05",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= EON_ID_NOPREFIX,
+		.model_id	= EON_EN25B05,
+		.total_size	= 64,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = {
+					{32 * 1024, 2} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {64 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3400,7 +3430,7 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3434,7 +3464,36 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Eon",
+		.name		= "EN25P10",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= EON_ID_NOPREFIX,
+		.model_id	= EON_EN25B10,
+		.total_size	= 128,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {32 * 1024, 4} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {128 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3469,7 +3528,7 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3504,7 +3563,36 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Eon",
+		.name		= "EN25P20",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= EON_ID_NOPREFIX,
+		.model_id	= EON_EN25B20,
+		.total_size	= 256,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {64 * 1024, 4} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {256 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3539,7 +3627,7 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3574,7 +3662,36 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Eon",
+		.name		= "EN25P40",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= EON_ID_NOPREFIX,
+		.model_id	= EON_EN25B40,
+		.total_size	= 512,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {64 * 1024, 8} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {512 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3609,7 +3726,7 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3644,7 +3761,36 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Eon",
+		.name		= "EN25P80",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= EON_ID_NOPREFIX,
+		.model_id	= EON_EN25B80,
+		.total_size	= 1024,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {64 * 1024, 16} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3679,7 +3825,7 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3714,7 +3860,36 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Eon",
+		.name		= "EN25P16",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= EON_ID_NOPREFIX,
+		.model_id	= EON_EN25B16,
+		.total_size	= 2048,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {64 * 1024, 32} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {2 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3726,7 +3901,8 @@ const struct flashchip flashchips[] = {
 		.model_id	= EON_EN25B32,
 		.total_size	= 4096,
 		.page_size	= 256,
-		.feature_bits	= FEATURE_WRSR_WREN,
+		/* OTP: 512B total; enter 0x3A */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3749,7 +3925,7 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3761,7 +3937,8 @@ const struct flashchip flashchips[] = {
 		.model_id	= EON_EN25B32,
 		.total_size	= 4096,
 		.page_size	= 256,
-		.feature_bits	= FEATURE_WRSR_WREN,
+		/* OTP: 512B total; enter 0x3A */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3784,7 +3961,37 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Eon",
+		.name		= "EN25P32", /* Uniform version of EN25B32 */
+		.bustype	= BUS_SPI,
+		.manufacture_id	= EON_ID_NOPREFIX,
+		.model_id	= EON_EN25B32,
+		.total_size	= 4096,
+		.page_size	= 256,
+		/* OTP: 512B total; enter 0x3A */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {64 * 1024, 64} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {4 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3796,7 +4003,8 @@ const struct flashchip flashchips[] = {
 		.model_id	= EON_EN25B64,
 		.total_size	= 8192,
 		.page_size	= 256,
-		.feature_bits	= FEATURE_WRSR_WREN,
+		/* OTP: 512B total; enter 0x3A */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3819,7 +4027,7 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -3831,7 +4039,8 @@ const struct flashchip flashchips[] = {
 		.model_id	= EON_EN25B64,
 		.total_size	= 8192,
 		.page_size	= 256,
-		.feature_bits	= FEATURE_WRSR_WREN,
+		/* OTP: 512B total; enter 0x3A */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3854,7 +4063,37 @@ const struct flashchip flashchips[] = {
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Eon",
+		.name		= "EN25P64",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= EON_ID_NOPREFIX,
+		.model_id	= EON_EN25B64,
+		.total_size	= 8192,
+		.page_size	= 256,
+		/* OTP: 512B total; enter 0x3A */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {64 * 1024, 128} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {8 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
 		.voltage	= {2700, 3600},
 	},
 
diff --git a/flashchips.h b/flashchips.h
index a7a176b..358fff3 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -237,28 +237,36 @@
  */
 #define EON_ID			0x7F1C	/* EON Silicon Devices */
 #define EON_ID_NOPREFIX		0x1C	/* EON, missing 0x7F prefix */
-#define EON_EN25B05		0x2010	/* Same as P05, 2^19 kbit or 2^16 kByte */
+#define EON_EN25B05		0x2010	/* Same as EN25P05, can be distinguished by RES/REMS: */
+#define EON_EN25P05		0x05
 #define EON_EN25B05T		0x25
 #define EON_EN25B05B		0x95
-#define EON_EN25B10		0x2011	/* Same as P10 */
+#define EON_EN25B10		0x2011	/* Same as EN25P10, can be distinguished by RES/REMS: */
+#define EON_EN25P10		0x10
 #define EON_EN25B10T		0x40
 #define EON_EN25B10B		0x30
-#define EON_EN25B20		0x2012	/* Same as P20 */
+#define EON_EN25B20		0x2012	/* Same as EN25P20, can be distinguished by RES/REMS: */
+#define EON_EN25P20		0x11
 #define EON_EN25B20T		0x41
 #define EON_EN25B20B		0x31
-#define EON_EN25B40		0x2013	/* Same as P40 */
+#define EON_EN25B40		0x2013	/* Same as EN25P40, can be distinguished by RES/REMS: */
+#define EON_EN25P40		0x12
 #define EON_EN25B40T		0x42
 #define EON_EN25B40B		0x32
-#define EON_EN25B80		0x2014	/* Same as P80 */
+#define EON_EN25B80		0x2014	/* Same as EN25P80, can be distinguished by RES/REMS: */
+#define EON_EN25P80		0x13
 #define EON_EN25B80T		0x43
 #define EON_EN25B80B		0x33
-#define EON_EN25B16		0x2015	/* Same as P16 */
+#define EON_EN25B16		0x2015	/* Same as EN25P16, can be distinguished by RES/REMS: */
+#define EON_EN25P16		0x14
 #define EON_EN25B16T		0x44
 #define EON_EN25B16B		0x34
-#define EON_EN25B32		0x2016	/* Same as P32 */
+#define EON_EN25B32		0x2016	/* Same as EN25P32, can be distinguished by RES/REMS: */
+#define EON_EN25P32		0x15
 #define EON_EN25B32T		0x45
 #define EON_EN25B32B		0x35
-#define EON_EN25B64		0x2017	/* Same as P64 */
+#define EON_EN25B64		0x2017	/* Same as EN25P64, can be distinguished by RES/REMS: */
+#define EON_EN25P64		0x16
 #define EON_EN25B64T		0x46
 #define EON_EN25B64B		0x36
 #define EON_EN25F05		0x3110