From eff0c6a99d5bbd57129c710033e7d0b5d5a684a7 Mon Sep 17 00:00:00 2001 From: Arthur Heymans Date: Sat, 18 Jun 2016 21:52:30 +0200 Subject: x4x: make preallocated IGD memory a cmos option This allows to set the preallocated memory for the IGD on x4x using a cmos option. If no cmos option is found a default value of 64M is used. TESTED most options on ga-g41m-es2l with 2G dimm in one slot and 2x2G. 352M also works in contrast with gm45 where it is known to cause issues with certain ram combinations. Change-Id: I9051d080be82f6dfab37d353252e29b2ed1fca7f Signed-off-by: Arthur Heymans Reviewed-on: https://review.coreboot.org/15492 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Patrick Georgi --- src/northbridge/intel/x4x/early_init.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'src/northbridge/intel') diff --git a/src/northbridge/intel/x4x/early_init.c b/src/northbridge/intel/x4x/early_init.c index b52229367f..a430538718 100644 --- a/src/northbridge/intel/x4x/early_init.c +++ b/src/northbridge/intel/x4x/early_init.c @@ -18,6 +18,7 @@ #include #include "iomap.h" #include /* DEFAULT_PMBASE */ +#include #include "x4x.h" void x4x_early_init(void) @@ -51,5 +52,12 @@ void x4x_early_init(void) /* Enable internal GFX */ pci_write_config32(d0f0, D0F0_DEVEN, BOARD_DEVEN); - pci_write_config16(d0f0, D0F0_GGC, 0x0170); + /* Set preallocated IGD size from cmos */ + u8 gfxsize; + + if (get_option(&gfxsize, "gfx_uma_size") != CB_SUCCESS) { + /* 6 for 64MB, default if not set in cmos */ + gfxsize = 6; + } + pci_write_config16(d0f0, D0F0_GGC, 0x0100 | ((gfxsize + 1) << 4)); } -- cgit v1.2.3