From 505c259ca8794b0fa257a22a4339188bdefbc9b7 Mon Sep 17 00:00:00 2001
From: Eric Park <me@ericswpark.com>
Date: Mon, 24 Mar 2025 14:27:44 -0400
Subject: [PATCH] flashchips: Add XMC XM25QH64A

Based off of the now-abandoned GitHub pull request here:
https://github.com/flashrom/flashrom/pull/239

Datasheet:
https://www.micros.com.pl/mediaserver/PFXM25QH64AHIG_0001.pdf

This commit applies the changes on top of the refactor where the flash
chip declarations were separated by vendor.

Change-Id: I5b11e30f0a5357a6cbb32ddb93f450de5364c60b
Co-authored-by: Ayushman Dutta <ayushman999@gmail.com>
Co-authored-by: "aiyion.prime" <git@aiyionpri.me>
Co-authored-by: Eric Park <me@ericswpark.com>
Signed-off-by: Eric Park <me@ericswpark.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/86990
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 flashchips/xmc.c     | 41 +++++++++++++++++++++++++++++++++++++++++
 include/flashchips.h |  1 +
 2 files changed, 42 insertions(+)

diff --git a/flashchips/xmc.c b/flashchips/xmc.c
index 4ed022574..a4e730e69 100644
--- a/flashchips/xmc.c
+++ b/flashchips/xmc.c
@@ -322,6 +322,47 @@
 		.voltage	= {1650, 1950},
 	},
 
+	{
+		.vendor		= "XMC",
+		.name		= "XM25QH64A",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= ST_ID,
+		.model_id	= XMC_XM25QH64A,
+		.total_size	= 8192,
+		.page_size	= 256,
+		/* supports SFDP */
+		/* OTP: 512B total; enter 0x3A */
+		/* QPI enable 0x38, disable 0xFF */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI,
+		.tested		= TEST_OK_PREW,
+		.probe		= PROBE_SPI_RDID,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 2048} },
+				.block_erase = SPI_BLOCK_ERASE_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 256} },
+				.block_erase = SPI_BLOCK_ERASE_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 128} },
+				.block_erase = SPI_BLOCK_ERASE_D8,
+			}, {
+				.eraseblocks = { { 8192 * 1024, 1} },
+				.block_erase = SPI_BLOCK_ERASE_60,
+			}, {
+				.eraseblocks = { { 8192 * 1024, 1} },
+				.block_erase = SPI_BLOCK_ERASE_C7,
+			}
+		},
+		.printlock	= SPI_PRETTYPRINT_STATUS_REGISTER_BP3_SRWD, /* bit6 is quad enable */
+		.unlock		= SPI_DISABLE_BLOCKPROTECT_BP3_SRWD,
+		.write		= SPI_CHIP_WRITE256,
+		.read		= SPI_CHIP_READ,
+		.voltage	= {2700, 3600},
+	},
+
 	{
 		.vendor		= "XMC",
 		.name		= "XM25QH128A",
diff --git a/include/flashchips.h b/include/flashchips.h
index 556729ccd..a1a471c48 100644
--- a/include/flashchips.h
+++ b/include/flashchips.h
@@ -864,6 +864,7 @@
 #define XMC_XM25QU16C		0x5015
 #define XMC_XM25QH32C		0x4016	/* Same as XM25QH32D */
 #define XMC_XM25QU32C		0x5016
+#define XMC_XM25QH64A   	0x7017
 #define XMC_XM25QH128A		0x7018
 #define XMC_XM25QH128C		0x4018	/* Same as XM25QH128D */
 #define XMC_XM25QU128C		0x4118	/* Same as XM25QU128D */