Add SDRAMPWR_4DIMM Kconfig option (not user-visible in menuconfig).
Each Intel 440BX board should select this option if it has 4 DIMM
slots on the PCB, and _not_ select it (it defaults to 'n') if it
has 3 DIMMs on the PCB.
Signed-off-by: Keith Hui <buurin@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5204 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/src/northbridge/intel/i440bx/Kconfig b/src/northbridge/intel/i440bx/Kconfig
index 696e884..4de84d3 100644
--- a/src/northbridge/intel/i440bx/Kconfig
+++ b/src/northbridge/intel/i440bx/Kconfig
@@ -22,3 +22,16 @@
bool
select HAVE_HIGH_TABLES
+config SDRAMPWR_4DIMM
+ bool
+ depends on NORTHBRIDGE_INTEL_I440BX
+ default n
+ help
+ This option affects how the SDRAMC register is programmed.
+ Memory clock signals will not be routed properly if this option
+ is set wrong.
+
+ If your board has 4 DIMM slots, you must use select this option, in
+ your Kconfig file of the board. On boards with 3 DIMM slots,
+ do _not_ select this option.
+