From a3ab6c6c3ae7ec62944aad580bbfc1701b3a8581 Mon Sep 17 00:00:00 2001
From: jvm <git@jinvent.de>
Date: Thu, 8 Mar 2018 15:43:20 +0100
Subject: [PATCH] Add support for Atmel / Adesto AT25SF041 SPI flash chip

probe/erase/read/write/verify hardware-tests were done.

Change-Id: I0be930ff2258300508398e12fbe5abe10400fea2
Signed-off-by: Julian von Mendel <git@jinvent.de>
Signed-off-by: jvm <git@jinvent.de>
Reviewed-on: https://review.coreboot.org/25047
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
---
 flashchips.c | 38 ++++++++++++++++++++++++++++++++++++++
 flashchips.h |  1 +
 2 files changed, 39 insertions(+)

diff --git a/flashchips.c b/flashchips.c
index 1ab4986fd..46e880795 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -2175,6 +2175,44 @@ const struct flashchip flashchips[] = {
 		.voltage	= {2700, 3600},
 	},
 
+	{
+		.vendor		= "Atmel",
+		.name		= "AT25SF041",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= ATMEL_ID,
+		.model_id	= ATMEL_AT25SF041,
+		.total_size	= 512,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_OK_PREW,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 128} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 16} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 8} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {512 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {512 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain,
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {2500, 3600},
+	},
+
 	{
 		.vendor		= "Atmel",
 		.name		= "AT26DF041",
diff --git a/flashchips.h b/flashchips.h
index 452f776cd..98d6e0347 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