Changes between Version 13 and Version 14 of venice/errata

Timestamp:

09/05/2023 07:43:31 PM (8 months ago)

Author:

Ryan Erbstoesser

Comment:

add vn8

venice/errata

@@ -176 +176 @@
 Resolution:
  * This is resolved on PCB 02210198-04 (GW730x-E)
+
+[=#VN8]
+== VN8 GSC Battery Voltage 
+
+Issue:
+
+ * When the rechargeable battery is below 1.8VDC voltage, the GSC may not reset the board properly when in the default configuration which implements a 'cold boot' (power cycle) to perform system resets and reboots. This can result in a SBC that does not power back on.
+
+Workaround:
+
+ * Disable GSC R0.7 so that a CPU reset (as in a U-Boot reset command, a Linux shutdown command, a Linux reboot command, and a CPU watchdog reset) only performs a warm boot and not a cold boot. One way to easily adjust this bit is with a i2c command in the bootloader as follows:
+{{{
+        i2c dev 0 && i2c mw 0x20 0 1 && i2c mw 0x20 0x1f 0xa1
+}}}
+ 
+ * Note if the board is in this non-powered condition, the GSC battery can be removed to allow the board to be re-powered and gain access to the bootloader
+Resolution:
+
+ * For affected products, a GSC firmware update will be issued in the future which defaults this bit to warm boot. This update is recommended for all Venice board revisions.
+
+Affected Products:
+
+ * GW710x-A/B/C/D
+ * GW720x-A/B/C/D/E 
+ * GW730x-A/B/C/D/E 
+ * GW740x-A/B
+
+Resolved on:
+
+ * GW710x-E (PCB 02210196-04)
+ * GW720x-F (PCB 02210197-05)
+ * GW730x-F (PCB 02210198-05)
+ * GW740x-C (PCB 02210199-02)
+
+