GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i945: Support text mode gfx init 

Change-Id: I952fdb113e2696785695b416d9292b7107099994
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/6723
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
This commit is contained in:
Vladimir Serbinenko 2014-08-21 01:06:53 +02:00
parent 055fe03795
commit 0092c999c7
2 changed files with 34 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mainboard/apple/macbook21/Kconfig
View File

@ -17,6 +17,8 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select HAVE_ACPI_RESUME
select USE_OPTION_TABLE
select MAINBOARD_HAS_NATIVE_VGA_INIT
select MAINBOARD_HAS_NATIVE_VGA_INIT_TEXTMODECFG
select VGA
select MAINBOARD_DO_EDID
select EARLY_CBMEM_INIT
select INTEL_EDID

41
src/northbridge/intel/i945/gma.c
View File

@ -28,6 +28,8 @@
#include <drivers/intel/gma/edid.h>
#include <drivers/intel/gma/i915.h>
#include <string.h>
#include <pc80/vga.h>
#include <pc80/vga_io.h>
#include "i945.h"
#include "chip.h"
@ -224,6 +226,22 @@ static int intel_gma_init(struct northbridge_intel_i945_config *conf,
BASE_FREQUENCY * (5 * pixel_m1 + pixel_m2) / pixel_n
/ (pixel_p1 * 7));
#if !IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)
write32(pmmio + PF_WIN_SZ(0), vactive | (hactive << 16));
write32(pmmio + PF_WIN_POS(0), 0);
write32(pmmio + PF_CTL(0),PF_ENABLE | PF_FILTER_MED_3x3);
write32(pmmio + PFIT_CONTROL, PFIT_ENABLE | (1 << PFIT_PIPE_SHIFT) | HORIZ_AUTO_SCALE | VERT_AUTO_SCALE);
#else
/* Disable panel fitter (we're in native resolution). */
write32(pmmio + PF_CTL(0), 0);
write32(pmmio + PF_WIN_SZ(0), 0);
write32(pmmio + PF_WIN_POS(0), 0);
write32(pmmio + PFIT_PGM_RATIOS, 0);
write32(pmmio + PFIT_CONTROL, 0);
#endif
mdelay(1);
write32(pmmio + DSPCNTR(0), DISPPLANE_BGRX888
| DISPPLANE_SEL_PIPE_B | DISPPLANE_GAMMA_ENABLE);
@ -271,15 +289,11 @@ static int intel_gma_init(struct northbridge_intel_i945_config *conf,
(vactive + bottom_border + vfront_porch + vsync - 1)
| (vactive + bottom_border + vfront_porch - 1));
#if !IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)
write32(pmmio + PIPESRC(1), (639 << 16) | 399);
#else
write32(pmmio + PIPESRC(1), ((hactive - 1) << 16) | (vactive - 1));
/* Disable panel fitter (we're in native resolution). */
write32(pmmio + PF_CTL(0), 0);
write32(pmmio + PF_WIN_SZ(0), 0);
write32(pmmio + PF_WIN_POS(0), 0);
write32(pmmio + PFIT_PGM_RATIOS, 0);
write32(pmmio + PFIT_CONTROL, 0);
#endif
mdelay(1);
write32(pmmio + DSPSIZE(0), (hactive - 1) | ((vactive - 1) << 16));
@ -374,12 +388,21 @@ static int intel_gma_init(struct northbridge_intel_i945_config *conf,
else
printk(BIOS_ERR, "ERROR: GTT is still Disabled!!!\n");
#if !IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)
vga_misc_write(0x67);
write32(pmmio + DSPCNTR(0), DISPPLANE_SEL_PIPE_B);
write32(pmmio + VGACNTRL, 0x02c4008e | VGA_PIPE_B_SELECT);
vga_textmode_init();
#else
printk(BIOS_SPEW, "memset %p to 0x00 for %d bytes\n",
(void *)pgfx, hactive * vactive * 4);
memset((void *)pgfx, 0x00, hactive * vactive * 4);
set_vbe_mode_info_valid(&edid, pgfx);
#endif
return 0;
}
#endif