Change in flashrom[master]: Support for Atmel / Adesto AT25SF041 SPI flash chip

[Julian von Mendel (Code Review)]

Julian von Mendel has uploaded this change for review. ( https://review.coreboot.org/25047

Change subject: Support for Atmel / Adesto AT25SF041 SPI flash chip
......................................................................

Support for Atmel / Adesto AT25SF041 SPI flash chip

Change-Id: I0be930ff2258300508398e12fbe5abe10400fea2
---
M flashchips.c
M flashchips.h
2 files changed, 33 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/47/25047/1

diff --git a/flashchips.c b/flashchips.c
index 1ab4986..2a2855f 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -2177,6 +2177,38 @@

{
    	.vendor		= "Atmel",
+		.name		= "AT25SF041",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= ATMEL_ID,
+		.model_id	= ATMEL_AT25SF041,
+		.total_size	= 512,
+		.page_size	= 256,
+		/* does not support EWSR nor WREN and has no writable status register bits whatsoever */
+		.tested		= TEST_OK_PREW,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {256, 2048} },
+				.block_erase = spi_block_erase_81,
+			}, {
+				.eraseblocks = { {2 * 1024, 256} },
+				.block_erase = spi_block_erase_50,
+			}, {
+				.eraseblocks = { {4 * 1024, 128} },
+				.block_erase = spi_block_erase_20,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain,
+		/* Supports also an incompatible page write (of exactly 256 B) and an auto-erasing write. */
+		.write		= spi_chip_write_1,
+		.read		= spi_chip_read, /* Fast read (0x0B) supported */
+		.voltage	= {2700, 3600}, /* 3.0-3.6V for higher speed, 2.7-3.6V normal */
+	},
+
+	{
+		.vendor		= "Atmel",
    	.name		= "AT26DF041",
    	.bustype	= BUS_SPI,
    	.manufacture_id	= ATMEL_ID,
diff --git a/flashchips.h b/flashchips.h
index 452f776..98d6e03 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -150,6 +150,7 @@
 #define ATMEL_AT25F4096		0x64	/* Needs AT25F_RDID */
 #define ATMEL_AT25FS010		0x6601
 #define ATMEL_AT25FS040		0x6604
+#define ATMEL_AT25SF041 	0x8401
 #define ATMEL_AT26DF041		0x4400
 #define ATMEL_AT26DF081		0x4500	/* guessed, no datasheet available */
 #define ATMEL_AT26DF081A	0x4501