Changeset 1521 for trunk/flashchips.c

Timestamp:

Apr 15, 2012 12:51:40 AM (14 months ago)

Author:

uwe

Message:

Add support for the Eon EN29LV640B chip.

This chip needs special command sequences in 8 bit mode. Also, 8 bit
programming needs actually 16bit double byte program.

The chip is found on the Bifferos Bifferboard, for example.

Signed-off-by: Rudolf Marek <r.marek@…>
Acked-by: Uwe Hermann <uwe@…>

File:

• trunk/flashchips.c (modified) (3 diffs)

trunk/flashchips.c

@@ -3531 +3531 @@
                 {
                         {
-                                .eraseblocks = { 
+                                .eraseblocks = {
                                         {16 * 1024, 1},
                                         {8 * 1024, 2},
@@ -3563 +3563 @@
                 {
                         {
-                                .eraseblocks = { 
+                                .eraseblocks = {
                                         {64 * 1024, 3},
                                         {32 * 1024, 1},
@@ -3578 +3578 @@
                 .read           = read_memmapped,
                 .voltage        = {4500, 5500},
+        },
+
+        {
+                .vendor         = "Eon",
+                .name           = "EN29LV640B",
+                .bustype        = BUS_PARALLEL,
+                .manufacture_id = EON_ID,
+                .model_id       = EON_EN29LV640B,
+                .total_size     = 8192,
+                .page_size      = 8192,
+                .feature_bits   = 0,
+                .tested         = TEST_OK_PREW,
+                .probe          = probe_en29lv640b,
+                .probe_timing   = TIMING_ZERO,  /* Datasheet has no timing info specified */
+                .block_erasers  =
+                {
+                        {
+                                .eraseblocks = {
+                                        {8 * 1024, 8},
+                                        {64 * 1024, 127},
+                                },
+                                .block_erase = block_erase_en29lv640b,
+                        }, {
+                                .eraseblocks = { {8 * 1024 * 1024, 1} },
+                                .block_erase = block_erase_chip_en29lv640b,
+                        },
+                },
+                .write          = write_en29lv640b,
+                .read           = read_memmapped,
+                .voltage        = {2700, 3600},
         },