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gm45: Make UMA size configurable. 

Change-Id: I27b2ec70b9c77f3caf9d52788f46f5dc16045d1b
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/6686
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
This commit is contained in:
Vladimir Serbinenko 2014-08-16 10:51:06 +02:00
parent 16de28ae92
commit 084ed45a95
3 changed files with 30 additions and 5 deletions
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11
src/mainboard/lenovo/x200/cmos.layout
View File

@ -104,7 +104,10 @@ entries
937 1 e 1 low_battery_beep
938 1 e 1 uwb
#939 5 r 0 unused
# coreboot config options: northbridge
939 3 e 11 gfx_uma_size
#942 2 r 0 unused
# coreboot config options: check sums
984 16 h 0 check_sum
@ -150,6 +153,12 @@ enumerations
9 1 Primary
10 0 AHCI
10 1 Compatible
11 0 32M
11 1 48M
11 2 64M
11 3 128M
11 5 96M
11 6 160M
# -----------------------------------------------------------------
checksums

12
src/mainboard/roda/rk9/cmos.layout
View File

@ -96,7 +96,11 @@ entries
# coreboot config options: check sums
984 16 h 0 check_sum
#1000 24 r 0 unused
# coreboot config options: northbridge
1000 3 e 10 gfx_uma_size
#1003 21 r 0 unused
# ram initialization internal data
1024 128 r 0 read_training_results
@ -136,6 +140,12 @@ enumerations
8 1 Yes
9 0 AHCI
9 1 Compatible
10 0 32M
10 1 48M
10 2 64M
10 3 128M
10 5 96M
10 6 160M
# -----------------------------------------------------------------
checksums

12
src/northbridge/intel/gm45/igd.c
View File

@ -24,6 +24,7 @@
#include <arch/io.h>
#include <device/pci_def.h>
#include <console/console.h>
#include <pc80/mc146818rtc.h>
#include "gm45.h"
@ -40,6 +41,7 @@ static void enable_igd(const sysinfo_t *const sysinfo, const int no_peg)
u16 reg16;
u32 reg32;
u8 gfxsize;
printk(BIOS_DEBUG, "Enabling IGD.\n");
@ -61,12 +63,16 @@ static void enable_igd(const sysinfo_t *const sysinfo, const int no_peg)
/* Graphics Stolen Memory: 2MB GTT (0x0300) when VT-d disabled,
2MB GTT + 2MB shadow GTT (0x0b00) else. */
/* Graphics Mode Select: 32MB framebuffer (0x0050) */
/* TODO: We could switch to 64MB (0x0070), config flag? */
const u32 capid = pci_read_config32(mch_dev, D0F0_CAPID0 + 4);
reg16 = pci_read_config16(mch_dev, D0F0_GGC);
if (get_option(&gfxsize, "gfx_uma_size") != CB_SUCCESS) {
/* 0 for 32MB */
gfxsize = 0;
}
reg16 &= 0xf00f;
reg16 |= 0x0350;
reg16 |= 0x0300 | ((gfxsize + 5) << 4);
if (!(capid & (1 << (48 - 32))))
reg16 |= 0x0800;
pci_write_config16(mch_dev, D0F0_GGC, reg16);