r5671 - trunk/gta02-core/docs/ecn

[werner at docs.openmoko.org]

Author: werner
Date: 2009-10-05 18:32:03 +0200 (Mon, 05 Oct 2009)
New Revision: 5671

Modified:
   trunk/gta02-core/docs/ecn/STATUS
   trunk/gta02-core/docs/ecn/ecn0002.txt
Log:
- ECN0002: added software impact and promoted to "Discuss"



Modified: trunk/gta02-core/docs/ecn/STATUS
===================================================================
--- trunk/gta02-core/docs/ecn/STATUS	2009-10-04 18:26:02 UTC (rev 5670)
+++ trunk/gta02-core/docs/ecn/STATUS	2009-10-05 16:32:03 UTC (rev 5671)
@@ -1,7 +1,7 @@
 Number	Status	Description
 -------	-------	---------------------------------------------------------------
 0001	Edit	Remove Glamo (U1801)
-0002	Edit	Remove NOR (U2501)
+0002	Discuss	Remove NOR (U2501)
 0003	Done	Remove SHUTDOWN net and connect PMU.SHUTDOWN directly to GND
 0004	Done	Remove R1767 and R1768 and connect all PMU.EXTONx to R1766
 0005	Done	Simplify/remove BAT_ID/BATTEMP circuit (R1769)

Modified: trunk/gta02-core/docs/ecn/ecn0002.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0002.txt	2009-10-04 18:26:02 UTC (rev 5670)
+++ trunk/gta02-core/docs/ecn/ecn0002.txt	2009-10-05 16:32:03 UTC (rev 5671)
@@ -8,8 +8,15 @@
 Note that the connection from IO_1V8 via R2504 to FLASH_1V8 (sheet 25xx 
 of the Openmoko GTA02 schematics) remains for the NAND in the CPU.
 
-To do:
-- software impact of not having NOR on Qi and kernel
+Software impact: Qi must pass an "mtdparts=" parameter without the
+"physmap-flash" entry and the kernel must not register a NOR device
+(arch/arm/mach-s3c2442/mach-gta02.c:gta02_devices).
 
+On the Linux side, the absence of NOR means that the MTD device numbers
+change. However, if we assume a legacy-free configuration (i.e., no
+u-boot), the partition layout changes anyway, and only a single Qi
+partition is needed for now. (Later, "factory" data may be stored as
+well.)
 
+
 Author: Werner Almesberger <werner at openmoko.org>