Author: uwe Date: Sat Mar 13 21:16:48 2010 New Revision: 5204 URL: http://tracker.coreboot.org/trac/coreboot/changeset/5204
Log: 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 <[email protected]> Acked-by: Uwe Hermann <[email protected]> Modified: trunk/src/mainboard/asus/p2b-d/Kconfig trunk/src/mainboard/asus/p2b-ds/Kconfig trunk/src/mainboard/asus/p2b-ls/Kconfig trunk/src/mainboard/asus/p3b-f/Kconfig trunk/src/northbridge/intel/i440bx/Kconfig trunk/src/northbridge/intel/i440bx/raminit.c Modified: trunk/src/mainboard/asus/p2b-d/Kconfig ============================================================================== --- trunk/src/mainboard/asus/p2b-d/Kconfig Sat Mar 13 13:54:58 2010 (r5203) +++ trunk/src/mainboard/asus/p2b-d/Kconfig Sat Mar 13 21:16:48 2010 (r5204) @@ -31,6 +31,7 @@ select SMP select UDELAY_TSC select BOARD_ROMSIZE_KB_256 + select SDRAMPWR_4DIMM config MAINBOARD_DIR string Modified: trunk/src/mainboard/asus/p2b-ds/Kconfig ============================================================================== --- trunk/src/mainboard/asus/p2b-ds/Kconfig Sat Mar 13 13:54:58 2010 (r5203) +++ trunk/src/mainboard/asus/p2b-ds/Kconfig Sat Mar 13 21:16:48 2010 (r5204) @@ -31,6 +31,7 @@ select SMP select UDELAY_TSC select BOARD_ROMSIZE_KB_256 + select SDRAMPWR_4DIMM config MAINBOARD_DIR string Modified: trunk/src/mainboard/asus/p2b-ls/Kconfig ============================================================================== --- trunk/src/mainboard/asus/p2b-ls/Kconfig Sat Mar 13 13:54:58 2010 (r5203) +++ trunk/src/mainboard/asus/p2b-ls/Kconfig Sat Mar 13 21:16:48 2010 (r5204) @@ -29,6 +29,7 @@ select HAVE_PIRQ_TABLE select UDELAY_TSC select BOARD_ROMSIZE_KB_256 + select SDRAMPWR_4DIMM config MAINBOARD_DIR string Modified: trunk/src/mainboard/asus/p3b-f/Kconfig ============================================================================== --- trunk/src/mainboard/asus/p3b-f/Kconfig Sat Mar 13 13:54:58 2010 (r5203) +++ trunk/src/mainboard/asus/p3b-f/Kconfig Sat Mar 13 21:16:48 2010 (r5204) @@ -29,6 +29,7 @@ select HAVE_PIRQ_TABLE select UDELAY_TSC select BOARD_ROMSIZE_KB_256 + select SDRAMPWR_4DIMM config MAINBOARD_DIR string Modified: trunk/src/northbridge/intel/i440bx/Kconfig ============================================================================== --- trunk/src/northbridge/intel/i440bx/Kconfig Sat Mar 13 13:54:58 2010 (r5203) +++ trunk/src/northbridge/intel/i440bx/Kconfig Sat Mar 13 21:16:48 2010 (r5204) @@ -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. + Modified: trunk/src/northbridge/intel/i440bx/raminit.c ============================================================================== --- trunk/src/northbridge/intel/i440bx/raminit.c Sat Mar 13 13:54:58 2010 (r5203) +++ trunk/src/northbridge/intel/i440bx/raminit.c Sat Mar 13 21:16:48 2010 (r5204) @@ -292,7 +292,11 @@ * 0 = 3 clocks of RAS# precharge * 1 = 2 clocks of RAS# precharge */ - SDRAMC + 0, 0x00, 0x00, +#if CONFIG_SDRAMPWR_4DIMM + SDRAMC + 0, 0x00, 0x10, /* The board has 4 DIMM slots. */ +#else + SDRAMC + 0, 0x00, 0x00, /* The board has 3 DIMM slots.*/ +#endif SDRAMC + 1, 0x00, 0x00, /* PGPOL - Paging Policy Register -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
