[PATCH] Add support for Atmel AT49LH004.

[Stefan Tauner]

Also, slightly refine the definition of AT49LH002.
TODO: unlocking is mandatory because the chips are write-protected
by default.

Signed-off-by: Stefan Tauner 
---
 flashchips.c | 42 +++++++++++++++++++++++++++++++++++++++---
 flashchips.h |  2 ++
 2 files changed, 41 insertions(+), 3 deletions(-)

diff --git a/flashchips.c b/flashchips.c
index 0c3bb68..c658288 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -3049,7 +3049,7 @@ const struct flashchip flashchips[] = {
    	.model_id	= ATMEL_AT49LH002,
    	.total_size	= 256,
    	.page_size	= 0, /* unused */
-		.feature_bits	= FEATURE_REGISTERMAP, /* TODO: LPC OK too? */
+		.feature_bits	= FEATURE_REGISTERMAP,
    	.tested		= TEST_UNTESTED,
    	.probe		= probe_82802ab, /* TODO: 0xff cmd not documented? */
    	.probe_timing	= TIMING_FIXME,
@@ -3062,16 +3062,52 @@ const struct flashchip flashchips[] = {
    				{8 * 1024, 2},
    				{16 * 1024, 1},
    			},
-				.block_erase = erase_block_82802ab,
+				.block_erase = NULL, /* TODO: Implement. */
    		}, {
    			.eraseblocks = {
    				{64 * 1024, 4},
    			},
+				.block_erase = erase_block_82802ab,
+			},
+		},
+		.printlock	= NULL, /* TODO */
+		.unlock		= NULL, /* TODO: something like unlock_82802ab() but working on the sector eraser blocks. */
+		.write		= write_82802ab,
+		.read		= read_memmapped,
+		.voltage	= {3000, 3600},
+	},
+
+	{
+		.vendor		= "Atmel",
+		.name		= "AT49LH004",
+		.bustype	= BUS_LPC | BUS_FWH, /* A/A Mux */
+		.manufacture_id	= ATMEL_ID,
+		.model_id	= ATMEL_AT49LH004,
+		.total_size	= 512,
+		.page_size	= 0, /* unused */
+		.feature_bits	= FEATURE_REGISTERMAP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_82802ab, /* TODO: 0xff cmd not documented? */
+		.probe_timing	= TIMING_FIXME,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = {
+					{64 * 1024, 7},
+					{32 * 1024, 1},
+					{8 * 1024, 2},
+					{16 * 1024, 1},
+				},
+				.block_erase = erase_block_82802ab,
+			}, {
+				.eraseblocks = {
+					{64 * 1024, 8},
+				},
    			.block_erase = NULL, /* TODO: Implement. */
    		},
    	},
    	.printlock	= NULL, /* TODO */
-		.unlock		= NULL, /* unlock_82802ab() not correct(?) */
+		.unlock		= NULL, /* TODO: something like unlock_82802ab() but working on the sector eraser blocks. */
    	.write		= write_82802ab,
    	.read		= read_memmapped,
    	.voltage	= {3000, 3600},
diff --git a/flashchips.h b/flashchips.h
index fb17981..798323f 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -190,6 +190,8 @@
 #define ATMEL_AT49BV512		0x03
 #define ATMEL_AT49F002N		0x07	/* for AT49F002(N)  */
 #define ATMEL_AT49LH002		0xE9
+#define ATMEL_AT49LH00B4	0xED
+#define ATMEL_AT49LH004		0xEE
 #define ATMEL_AT49F002NT	0x08	/* for AT49F002(N)T */
 #define ATMEL_AT49F010		0x17	/* Same as AT49HF010 */
 #define ATMEL_AT49F020		0x0B