Thierry,

We didn't update the schematic when we changed the part.  From an electrical perspective, it was a drop-in part, however we during the investigation, we determined that a newer version of U-Boot was required and a patch to Linux is needed in order to support the updated SPI Flash because the older software didn't recognize the chip ID of the newer part.

We updated the Linux User guide to document how to apply the patch, update the U-Boot recovery document to include the newer U-Boot image, and updated the product change release to point to the other document updates.

Unfortunately, when I reviewed the documents, I noticed the Linux patch is missing.  I apologize for that, and I'll work on updating the documentation file to include the patch. I e-mailed you the patch directly

The product change notice is located here:  http://support.logicpd.co...rtalid=0&EntryId=751

The Updated User guide is located here: http://support.logicpd.co...talid=0&EntryId=1424
Section 5.3.2 covers how to apply the patch to the kernel.   This assumes you're using the kernel that's posted in the virtual machine posted on our support site.  If not, the patch is fairly small and should be adaptable to other versions as well.

The updated U-Boot recovery document has the images available to update U-Boot to a newer version to support the updated NOR flash chip.
That is located here: 
http://support.logicpd.co...rtalid=0&EntryId=778


The raw file you'll want to burn is 1029829.raw

From a540bef82f2f1cb3219878597bb47ab921295589 Mon Sep 17 00:00:00 2001
From: Logic
Date: Fri, 2 Nov 2018 08:48:55 -0500
Subject: [PATCH] Support updated NOR Flash

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index bf5a002..a21ba04 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -708,6 +708,8 @@ static const struct spi_device_id m25p_ids[] = {
     { "m25pe80", INFO(0x208014,  0, 64 * 1024, 16,       0) },
     { "m25pe16", INFO(0x208015,  0, 64 * 1024, 32, SECT_4K) },
 
+    { "n25q128a13",  INFO(0x20ba18, 0, 64 * 1024,  256, SECT_4K) },
+
     /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */
     { "w25x10", INFO(0xef3011, 0, 64 * 1024,  2,  SECT_4K) },
     { "w25x20", INFO(0xef3012, 0, 64 * 1024,  4,  SECT_4K) },
-- 
1.7.0.4

As point of clarification, the U-Boot wasn't as easy to patch, and support for the part had been included in U-Boot starting sometime in 2013. Rather than testing a version from 2013, we opted for a more modern version. When we updated U-Boot to v2018.09, we did test booting the kernel's uImage as well as some other basic functionality.

If you've heavily modified your U-Boot, and do not wish to migrate to the newer version, you may have to patch the U-Boot driver for the SPI flash, but we don't have one available.

Thierry,

I am glad you got it working. For everyone else, we updated the OMAP-L138 Linux User guide to add the patch file.