summaryrefslogtreecommitdiff
path: root/src/northbridge/intel
diff options
context:
space:
mode:
Diffstat (limited to 'src/northbridge/intel')
-rw-r--r--src/northbridge/intel/gm45/Kconfig2
-rw-r--r--src/northbridge/intel/gm45/gma.c600
2 files changed, 11 insertions, 591 deletions
diff --git a/src/northbridge/intel/gm45/Kconfig b/src/northbridge/intel/gm45/Kconfig
index 7b4250f0f3..e7b96037dd 100644
--- a/src/northbridge/intel/gm45/Kconfig
+++ b/src/northbridge/intel/gm45/Kconfig
@@ -26,8 +26,6 @@ config NORTHBRIDGE_SPECIFIC_OPTIONS # dummy
select INTEL_EDID
select INTEL_GMA_ACPI
select INTEL_GMA_SSC_ALTERNATE_REF
- select HAVE_LINEAR_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT
- select HAVE_VGA_TEXT_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT
select POSTCAR_STAGE
select POSTCAR_CONSOLE
select SMM_TSEG
diff --git a/src/northbridge/intel/gm45/gma.c b/src/northbridge/intel/gm45/gma.c
index 0ec0516ceb..347a5aeb33 100644
--- a/src/northbridge/intel/gm45/gma.c
+++ b/src/northbridge/intel/gm45/gma.c
@@ -29,16 +29,10 @@
#include "drivers/intel/gma/i915_reg.h"
#include "chip.h"
#include "gm45.h"
-#include <drivers/intel/gma/intel_bios.h>
#include <drivers/intel/gma/edid.h>
-#include <drivers/intel/gma/i915.h>
#include <drivers/intel/gma/opregion.h>
-#include <pc80/vga.h>
-#include <pc80/vga_io.h>
#include <drivers/intel/gma/libgfxinit.h>
-#define BASE_FREQUENCY 96000
-
static struct resource *gtt_res = NULL;
u32 gtt_read(u32 reg)
@@ -64,579 +58,6 @@ void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb)
gnvs_ptr->aslb = aslb;
}
-static void gma_init_lvds(const struct northbridge_intel_gm45_config *info,
- u8 *mmio, u32 physbase, u16 piobase, u32 lfb,
- struct edid *edid)
-{
- int i;
- struct edid_mode *mode;
- u32 hactive, vactive, right_border, bottom_border;
- int hpolarity, vpolarity;
- u32 vsync, hsync, vblank, hblank, hfront_porch, vfront_porch;
- u32 smallest_err = 0xffffffff;
- u32 target_frequency;
- u32 pixel_p1 = 1;
- u32 pixel_n = 1;
- u32 pixel_m1 = 1;
- u32 pixel_m2 = 1;
- u32 pixel_p2;
-
- vga_gr_write(0x18, 0);
-
- /* Setup GTT. */
- for (i = 0; i < 0x2000; i++)
- {
- outl((i << 2) | 1, piobase);
- outl(physbase + (i << 12) + 1, piobase + 4);
- }
-
- write32(mmio + ADPA, 0x40008c18);
- write32(mmio + 0x7041c, 0x0);
- write32(mmio + _DPLL_B_MD, 0x3);
-
- vga_misc_write(0x67);
-
- const u8 cr[] = { 0x5f, 0x4f, 0x50, 0x82, 0x55, 0x81, 0xbf, 0x1f,
- 0x00, 0x4f, 0x0d, 0x0e, 0x00, 0x00, 0x00, 0x00,
- 0x9c, 0x8e, 0x8f, 0x28, 0x1f, 0x96, 0xb9, 0xa3,
- 0xff
- };
- vga_cr_write(0x11, 0);
-
- for (i = 0; i <= 0x18; i++)
- vga_cr_write(i, cr[i]);
-
- /* Disable screen memory to prevent garbage from appearing. */
- vga_sr_write(1, vga_sr_read(1) | 0x20);
-
- mode = &edid->mode;
-
- hactive = edid->x_resolution;
- vactive = edid->y_resolution;
- right_border = mode->hborder;
- bottom_border = mode->vborder;
- hpolarity = (mode->phsync == '-');
- vpolarity = (mode->pvsync == '-');
- vsync = mode->vspw;
- hsync = mode->hspw;
- vblank = mode->vbl;
- hblank = mode->hbl;
- hfront_porch = mode->hso;
- vfront_porch = mode->vso;
-
- if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
- vga_sr_write(1, 1);
- vga_sr_write(0x2, 0xf);
- vga_sr_write(0x3, 0x0);
- vga_sr_write(0x4, 0xe);
- vga_gr_write(0, 0x0);
- vga_gr_write(1, 0x0);
- vga_gr_write(2, 0x0);
- vga_gr_write(3, 0x0);
- vga_gr_write(4, 0x0);
- vga_gr_write(5, 0x0);
- vga_gr_write(6, 0x5);
- vga_gr_write(7, 0xf);
- vga_gr_write(0x10, 0x1);
- vga_gr_write(0x11, 0);
-
- edid->bytes_per_line = (edid->bytes_per_line + 63) & ~63;
-
- write32(mmio + DSPCNTR(0), DISPPLANE_BGRX888);
- write32(mmio + DSPADDR(0), 0);
- write32(mmio + DSPSTRIDE(0), edid->bytes_per_line);
- write32(mmio + DSPSURF(0), 0);
- for (i = 0; i < 0x100; i++)
- write32(mmio + LGC_PALETTE(0) + 4 * i, i * 0x010101);
- } else {
- vga_textmode_init();
- }
-
- target_frequency = mode->pixel_clock;
- /*
- * p2 divisor must 7 for dual channel LVDS
- * and 14 for single channel LVDS
- */
- pixel_p2 = mode->lvds_dual_channel ? 7 : 14;
-
- /*
- * Find suitable divisors, m1, m2, p1, n.
- * refclock * (5 * (m1 + 2) + (m1 + 2)) / (n + 2) / p1 / p2
- * should be closest to target frequency as possible
- */
- u32 candn, candm1, candm2, candp1;
- for (candn = 1; candn <= 3; candn++) {
- for (candm1 = 23; candm1 >= 17; candm1--) {
- for (candm2 = 11; candm2 >= 5; candm2--) {
- for (candp1 = mode->lvds_dual_channel ? 6 : 8;
- candp1 >= 2; candp1--) {
- u32 m = 5 * (candm1 + 2) + (candm2 + 2);
- u32 p = candp1 * pixel_p2;
- u32 vco = DIV_ROUND_CLOSEST(BASE_FREQUENCY * m, candn + 2);
- u32 dot = DIV_ROUND_CLOSEST(vco, p);
- u32 this_err = MAX(dot, target_frequency) -
- MIN(dot, target_frequency);
- if (this_err < smallest_err) {
- smallest_err = this_err;
- pixel_n = candn;
- pixel_m1 = candm1;
- pixel_m2 = candm2;
- pixel_p1 = candp1;
- }
- }
- }
- }
- }
-
- if (smallest_err == 0xffffffff) {
- printk (BIOS_ERR, "Couldn't find GFX clock divisors\n");
- return;
- }
-
- printk(BIOS_INFO, "bringing up panel at resolution %d x %d\n",
- hactive, vactive);
- printk(BIOS_DEBUG, "Borders %d x %d\n",
- right_border, bottom_border);
- printk(BIOS_DEBUG, "Blank %d x %d\n",
- hblank, vblank);
- printk(BIOS_DEBUG, "Sync %d x %d\n",
- hsync, vsync);
- printk(BIOS_DEBUG, "Front porch %d x %d\n",
- hfront_porch, vfront_porch);
- printk(BIOS_DEBUG, (info->gfx.use_spread_spectrum_clock
- ? "Spread spectrum clock\n" : "DREF clock\n"));
- printk(BIOS_DEBUG,
- mode->lvds_dual_channel ? "Dual channel\n" : "Single channel\n");
- printk(BIOS_DEBUG, "Polarities %d, %d\n",
- hpolarity, vpolarity);
- printk(BIOS_DEBUG, "Pixel N=%d, M1=%d, M2=%d, P1=%d\n",
- pixel_n, pixel_m1, pixel_m2, pixel_p1);
- printk(BIOS_DEBUG, "Pixel clock %d kHz\n",
- BASE_FREQUENCY * (5 * (pixel_m1 + 2) + (pixel_m2 + 2)) /
- (pixel_n + 2) / (pixel_p1 * pixel_p2));
-
- write32(mmio + LVDS,
- (hpolarity << 20) | (vpolarity << 21)
- | (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
- | LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
- | LVDS_ENABLE_DITHER
- | LVDS_CLOCK_A_POWERUP_ALL
- | LVDS_PIPE(0));
- mdelay(1);
- write32(mmio + PP_CONTROL, PANEL_UNLOCK_REGS
- | (read32(mmio + PP_CONTROL) & ~PANEL_UNLOCK_MASK));
- write32(mmio + FP0(0),
- (pixel_n << 16)
- | (pixel_m1 << 8) | (pixel_m2));
- write32(mmio + DPLL(0),
- DPLL_VCO_ENABLE | DPLLB_MODE_LVDS
- | DPLL_VGA_MODE_DIS
- | (mode->lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7
- : DPLLB_LVDS_P2_CLOCK_DIV_14)
- | (0x10000 << (pixel_p1 - 1))
- | ((info->gfx.use_spread_spectrum_clock ? 3 : 0) << 13)
- | (6 << PLL_LOAD_PULSE_PHASE_SHIFT));
- mdelay(1);
- write32(mmio + DPLL(0),
- DPLL_VCO_ENABLE | DPLLB_MODE_LVDS
- | DPLL_VGA_MODE_DIS
- | (mode->lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7
- : DPLLB_LVDS_P2_CLOCK_DIV_14)
- | (0x10000 << (pixel_p1 - 1))
- | ((info->gfx.use_spread_spectrum_clock ? 3 : 0) << 13)
- | (6 << PLL_LOAD_PULSE_PHASE_SHIFT));
- /* Re-lock the registers. */
- write32(mmio + PP_CONTROL,
- (read32(mmio + PP_CONTROL) & ~PANEL_UNLOCK_MASK));
-
- write32(mmio + LVDS,
- (hpolarity << 20) | (vpolarity << 21)
- | (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
- | LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
- | LVDS_CLOCK_A_POWERUP_ALL
- | LVDS_ENABLE_DITHER
- | LVDS_PIPE(0));
-
- write32(mmio + HTOTAL(0),
- ((hactive + right_border + hblank - 1) << 16)
- | (hactive - 1));
- write32(mmio + HBLANK(0),
- ((hactive + right_border + hblank - 1) << 16)
- | (hactive + right_border - 1));
- write32(mmio + HSYNC(0),
- ((hactive + right_border + hfront_porch + hsync - 1) << 16)
- | (hactive + right_border + hfront_porch - 1));
-
- write32(mmio + VTOTAL(0), ((vactive + bottom_border + vblank - 1) << 16)
- | (vactive - 1));
- write32(mmio + VBLANK(0), ((vactive + bottom_border + vblank - 1) << 16)
- | (vactive + bottom_border - 1));
- write32(mmio + VSYNC(0),
- ((vactive + bottom_border + vfront_porch + vsync - 1) << 16)
- | (vactive + bottom_border + vfront_porch - 1));
-
- write32(mmio + PIPECONF(0), PIPECONF_DISABLE);
-
- write32(mmio + PF_WIN_POS(0), 0);
- if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
- write32(mmio + PIPESRC(0), ((hactive - 1) << 16)
- | (vactive - 1));
- write32(mmio + PF_CTL(0), 0);
- write32(mmio + PF_WIN_SZ(0), 0);
- write32(mmio + PFIT_CONTROL, 0);
- } else {
- write32(mmio + PIPESRC(0), (639 << 16) | 399);
- write32(mmio + PF_CTL(0), PF_ENABLE | PF_FILTER_MED_3x3);
- write32(mmio + PF_WIN_SZ(0), vactive | (hactive << 16));
- write32(mmio + PFIT_CONTROL, 0x80000000);
- }
-
- mdelay(1);
- write32(mmio + PIPECONF(0), PIPECONF_BPP_6);
- write32(mmio + PIPECONF(0), PIPECONF_BPP_6 | PIPECONF_DITHER_EN);
- write32(mmio + PIPECONF(0), PIPECONF_ENABLE | PIPECONF_BPP_6 | PIPECONF_DITHER_EN);
-
- if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
- write32(mmio + VGACNTRL, VGA_DISP_DISABLE);
- write32(mmio + DSPCNTR(0), DISPLAY_PLANE_ENABLE
- | DISPPLANE_BGRX888);
- mdelay(1);
- } else {
- write32(mmio + VGACNTRL, 0xc4008e);
- }
-
- write32(mmio + LVDS, LVDS_PORT_ENABLE
- | (hpolarity << 20) | (vpolarity << 21)
- | (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
- | LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
- | LVDS_CLOCK_A_POWERUP_ALL
- | LVDS_ENABLE_DITHER
- | LVDS_PIPE(0));
-
- write32(mmio + PP_CONTROL, PANEL_POWER_ON | PANEL_POWER_RESET);
-
- /* Enable screen memory. */
- vga_sr_write(1, vga_sr_read(1) & ~0x20);
-
- /* Clear interrupts. */
- write32(mmio + DEIIR, 0xffffffff);
- write32(mmio + SDEIIR, 0xffffffff);
-
- if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
- memset((void *) lfb, 0,
- edid->x_resolution * edid->y_resolution * 4);
- set_vbe_mode_info_valid(edid, lfb);
- }
-}
-
-static void gma_init_vga(const struct northbridge_intel_gm45_config *info,
- u8 *mmio, u32 physbase, u16 piobase, u32 lfb,
- struct edid *edid)
-{
-
- int i;
- struct edid_mode *mode;
- u32 hactive, vactive, right_border, bottom_border;
- int hpolarity, vpolarity;
- u32 vsync, hsync, vblank, hblank, hfront_porch, vfront_porch;
- u32 target_frequency;
- u32 smallest_err = 0xffffffff;
- u32 pixel_p1 = 1;
- u32 pixel_p2;
- u32 pixel_n = 1;
- u32 pixel_m1 = 1;
- u32 pixel_m2 = 1;
-
- vga_gr_write(0x18, 0);
-
- /* Set up GTT. */
- for (i = 0; i < 0x2000; i++) {
- outl((i << 2) | 1, piobase);
- outl(physbase + (i << 12) + 1, piobase + 4);
- }
-
-
- write32(mmio + VGA0, 0x31108);
- write32(mmio + VGA1, 0x31406);
-
- write32(mmio + ADPA, ADPA_DAC_ENABLE
- | ADPA_PIPE_A_SELECT
- | ADPA_CRT_HOTPLUG_MONITOR_COLOR
- | ADPA_CRT_HOTPLUG_ENABLE
- | ADPA_USE_VGA_HVPOLARITY
- | ADPA_VSYNC_CNTL_ENABLE
- | ADPA_HSYNC_CNTL_ENABLE
- | ADPA_DPMS_ON);
-
- write32(mmio + 0x7041c, 0x0);
- write32(mmio + DPLL_MD(0), 0x3);
- write32(mmio + DPLL_MD(1), 0x3);
-
- vga_misc_write(0x67);
-
- const u8 cr[] = { 0x5f, 0x4f, 0x50, 0x82, 0x55, 0x81, 0xbf, 0x1f,
- 0x00, 0x4f, 0x0d, 0x0e, 0x00, 0x00, 0x00, 0x00,
- 0x9c, 0x8e, 0x8f, 0x28, 0x1f, 0x96, 0xb9, 0xa3,
- 0xff
- };
- vga_cr_write(0x11, 0);
-
- for (i = 0; i <= 0x18; i++)
- vga_cr_write(i, cr[i]);
-
- udelay(1);
-
- /* Disable screen memory to prevent garbage from appearing. */
- vga_sr_write(1, vga_sr_read(1) | 0x20);
-
- mode = &edid->mode;
-
- hactive = edid->x_resolution;
- vactive = edid->y_resolution;
- right_border = mode->hborder;
- bottom_border = mode->vborder;
- hpolarity = (mode->phsync == '-');
- vpolarity = (mode->pvsync == '-');
- vsync = mode->vspw;
- hsync = mode->hspw;
- vblank = mode->vbl;
- hblank = mode->hbl;
- hfront_porch = mode->hso;
- vfront_porch = mode->vso;
- target_frequency = mode->pixel_clock;
-
- if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
- vga_sr_write(1, 1);
- vga_sr_write(0x2, 0xf);
- vga_sr_write(0x3, 0x0);
- vga_sr_write(0x4, 0xe);
- vga_gr_write(0, 0x0);
- vga_gr_write(1, 0x0);
- vga_gr_write(2, 0x0);
- vga_gr_write(3, 0x0);
- vga_gr_write(4, 0x0);
- vga_gr_write(5, 0x0);
- vga_gr_write(6, 0x5);
- vga_gr_write(7, 0xf);
- vga_gr_write(0x10, 0x1);
- vga_gr_write(0x11, 0);
-
- edid->bytes_per_line = (edid->bytes_per_line + 63) & ~63;
-
- write32(mmio + DSPCNTR(0), DISPLAY_PLANE_ENABLE
- | DISPPLANE_BGRX888);
- write32(mmio + DSPADDR(0), 0);
- write32(mmio + DSPSTRIDE(0), edid->bytes_per_line);
- write32(mmio + DSPSURF(0), 0);
- for (i = 0; i < 0x100; i++)
- write32(mmio + LGC_PALETTE(0) + 4 * i, i * 0x010101);
- } else {
- vga_textmode_init();
- }
-
- pixel_p2 = target_frequency <= 225000 ? 10 : 5;
-
- u32 candn, candm1, candm2, candp1;
- for (candn = 1; candn <= 4; candn++) {
- for (candm1 = 23; candm1 >= 17; candm1--) {
- for (candm2 = 11; candm2 >= 5; candm2--) {
- for (candp1 = 8; candp1 >= 1; candp1--) {
- u32 m = 5 * (candm1 + 2) + (candm2 + 2);
- u32 p = candp1 * pixel_p2;
- u32 vco = DIV_ROUND_CLOSEST(BASE_FREQUENCY * m, candn + 2);
- u32 dot = DIV_ROUND_CLOSEST(vco, p);
- u32 this_err = MAX(dot, target_frequency) -
- MIN(dot, target_frequency);
- if (this_err < smallest_err) {
- smallest_err= this_err;
- pixel_n = candn;
- pixel_m1 = candm1;
- pixel_m2 = candm2;
- pixel_p1 = candp1;
- }
- }
- }
- }
- }
-
- if (smallest_err == 0xffffffff) {
- printk(BIOS_ERR, "Error: Couldn't find GFX clock divisors\n");
- return;
- }
-
- printk(BIOS_INFO, "Bringing up panel at resolution %d x %d\n",
- hactive, vactive);
- printk(BIOS_SPEW, "Borders %d x %d\n",
- right_border, bottom_border);
- printk(BIOS_SPEW, "Blank %d x %d\n",
- hblank, vblank);
- printk(BIOS_SPEW, "Sync %d x %d\n",
- hsync, vsync);
- printk(BIOS_SPEW, "Front porch %d x %d\n",
- hfront_porch, vfront_porch);
- printk(BIOS_SPEW, (info->gfx.use_spread_spectrum_clock
- ? "Spread spectrum clock\n" : "DREF clock\n"));
- printk(BIOS_SPEW, "Polarities %d, %d\n",
- hpolarity, vpolarity);
- printk(BIOS_SPEW, "Pixel N=%d, M1=%d, M2=%d, P1=%d, P2=%d\n",
- pixel_n, pixel_m1, pixel_m2, pixel_p1, pixel_p2);
- printk(BIOS_SPEW, "Pixel clock %d kHz\n",
- BASE_FREQUENCY * (5 * (pixel_m1 + 2) + (pixel_m2 + 2)) /
- (pixel_n + 2) / (pixel_p1 * pixel_p2));
-
- mdelay(1);
- write32(mmio + FP0(0), (pixel_n << 16)
- | (pixel_m1 << 8) | pixel_m2);
- write32(mmio + DPLL(0), DPLL_VCO_ENABLE
- | DPLL_VGA_MODE_DIS | DPLLB_MODE_DAC_SERIAL
- | (pixel_p2 == 10 ? DPLL_DAC_SERIAL_P2_CLOCK_DIV_10 :
- DPLL_DAC_SERIAL_P2_CLOCK_DIV_5)
- | (0x10000 << (pixel_p1 - 1))
- | (6 << 9));
-
- mdelay(1);
- write32(mmio + DPLL(0), DPLL_VCO_ENABLE
- | DPLL_VGA_MODE_DIS | DPLLB_MODE_DAC_SERIAL
- | (pixel_p2 == 10 ? DPLL_DAC_SERIAL_P2_CLOCK_DIV_10 :
- DPLL_DAC_SERIAL_P2_CLOCK_DIV_5)
- | (0x10000 << (pixel_p1 - 1))
- | (6 << 9));
-
- write32(mmio + ADPA, ADPA_DAC_ENABLE
- | ADPA_PIPE_A_SELECT
- | ADPA_CRT_HOTPLUG_MONITOR_COLOR
- | ADPA_CRT_HOTPLUG_ENABLE
- | ADPA_VSYNC_CNTL_ENABLE
- | ADPA_HSYNC_CNTL_ENABLE
- | ADPA_DPMS_ON
- | (vpolarity ? ADPA_VSYNC_ACTIVE_LOW :
- ADPA_VSYNC_ACTIVE_HIGH)
- | (hpolarity ? ADPA_HSYNC_ACTIVE_LOW :
- ADPA_HSYNC_ACTIVE_HIGH));
-
- write32(mmio + HTOTAL(0),
- ((hactive + right_border + hblank - 1) << 16)
- | (hactive - 1));
- write32(mmio + HBLANK(0),
- ((hactive + right_border + hblank - 1) << 16)
- | (hactive + right_border - 1));
- write32(mmio + HSYNC(0),
- ((hactive + right_border + hfront_porch + hsync - 1) << 16)
- | (hactive + right_border + hfront_porch - 1));
-
- write32(mmio + VTOTAL(0), ((vactive + bottom_border + vblank - 1) << 16)
- | (vactive - 1));
- write32(mmio + VBLANK(0), ((vactive + bottom_border + vblank - 1) << 16)
- | (vactive + bottom_border - 1));
- write32(mmio + VSYNC(0),
- ((vactive + bottom_border + vfront_porch + vsync - 1) << 16)
- | (vactive + bottom_border + vfront_porch - 1));
-
- write32(mmio + PIPECONF(0), PIPECONF_DISABLE);
-
- write32(mmio + PF_WIN_POS(0), 0);
- if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
- write32(mmio + PIPESRC(0), ((hactive - 1) << 16)
- | (vactive - 1));
- write32(mmio + PF_CTL(0), 0);
- write32(mmio + PF_WIN_SZ(0), 0);
- write32(mmio + PFIT_CONTROL, 0);
- } else {
- write32(mmio + PIPESRC(0), (639 << 16) | 399);
- write32(mmio + PF_CTL(0), PF_ENABLE | PF_FILTER_MED_3x3);
- write32(mmio + PF_WIN_SZ(0), vactive | (hactive << 16));
- write32(mmio + PFIT_CONTROL, 0x80000000);
- }
-
- mdelay(1);
- write32(mmio + PIPECONF(0), PIPECONF_BPP_6);
- write32(mmio + PIPECONF(0), PIPECONF_BPP_6 | PIPECONF_DITHER_EN);
- write32(mmio + PIPECONF(0), PIPECONF_ENABLE
- | PIPECONF_BPP_6 | PIPECONF_DITHER_EN);
-
- if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
- write32(mmio + VGACNTRL, VGA_DISP_DISABLE);
- write32(mmio + DSPCNTR(0), DISPLAY_PLANE_ENABLE
- | DISPPLANE_BGRX888);
- mdelay(1);
- } else {
- write32(mmio + VGACNTRL, 0xc4008e);
- }
-
- write32(mmio + ADPA, ADPA_DAC_ENABLE
- | ADPA_PIPE_A_SELECT
- | ADPA_CRT_HOTPLUG_MONITOR_COLOR
- | ADPA_CRT_HOTPLUG_ENABLE
- | ADPA_VSYNC_CNTL_ENABLE
- | ADPA_HSYNC_CNTL_ENABLE
- | ADPA_DPMS_ON
- | (vpolarity ? ADPA_VSYNC_ACTIVE_LOW :
- ADPA_VSYNC_ACTIVE_HIGH)
- | (hpolarity ? ADPA_HSYNC_ACTIVE_LOW :
- ADPA_HSYNC_ACTIVE_HIGH));
-
- write32(mmio + PP_CONTROL, PANEL_POWER_ON | PANEL_POWER_RESET);
-
- /* Enable screen memory. */
- vga_sr_write(1, vga_sr_read(1) & ~0x20);
-
- /* Clear interrupts. */
- write32(mmio + DEIIR, 0xffffffff);
- write32(mmio + SDEIIR, 0xffffffff);
-
- if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
- memset((void *) lfb, 0,
- edid->x_resolution * edid->y_resolution * 4);
- set_vbe_mode_info_valid(edid, lfb);
- }
-
-
-}
-
-static void gma_ngi(struct device *const dev, struct edid *edid_lvds)
-{
- u8 edid_data_vga[128];
- struct edid edid_vga;
- int vga_edid_status;
- u8 *mmio;
- struct northbridge_intel_gm45_config *conf = dev->chip_info;
-
- mmio = res2mmio(gtt_res, 0, 0);
- printk(BIOS_DEBUG, "VGA EDID\n");
- intel_gmbus_read_edid(mmio + GMBUS0, GMBUS_PORT_VGADDC, 0x50,
- edid_data_vga, sizeof(edid_data_vga));
- intel_gmbus_stop(mmio + GMBUS0);
- vga_edid_status = decode_edid(edid_data_vga,
- sizeof(edid_data_vga), &edid_vga);
-
- u32 physbase;
- struct resource *lfb_res;
- struct resource *pio_res;
-
- lfb_res = find_resource(dev, PCI_BASE_ADDRESS_2);
- pio_res = find_resource(dev, PCI_BASE_ADDRESS_4);
-
- physbase = pci_read_config32(dev, 0x5c) & ~0xf;
-
- if (!(physbase && pio_res && pio_res->base && lfb_res && lfb_res->base))
- return;
-
- printk(BIOS_SPEW, "Initializing display without OPROM. MMIO 0x%llx\n",
- gtt_res->base);
- if (vga_edid_status != EDID_ABSENT) {
- printk(BIOS_DEBUG, "Initialising display on VGA output\n");
- gma_init_vga(conf, mmio, physbase, pio_res->base, lfb_res->base,
- &edid_vga);
- } else {
- printk(BIOS_DEBUG, "Initialising display on LVDS output\n");
- gma_init_lvds(conf, mmio, physbase, pio_res->base,
- lfb_res->base, edid_lvds);
- }
-
- /* Linux relies on VBT for panel info. */
- generate_fake_intel_oprom(&conf->gfx, dev, "$VBT CANTIGA");
-}
-
static u32 get_cdclk(struct device *const dev)
{
const u16 cdclk_sel =
@@ -756,6 +177,7 @@ static void gma_func0_init(struct device *dev)
u8 *mmio;
u8 edid_data_lvds[128];
struct edid edid_lvds;
+ const struct northbridge_intel_gm45_config *const conf = dev->chip_info;
/* IGD needs to be Bus Master */
reg32 = pci_read_config32(dev, PCI_COMMAND);
@@ -767,7 +189,8 @@ static void gma_func0_init(struct device *dev)
return;
mmio = res2mmio(gtt_res, 0, 0);
- if (!IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT)) {
+
+ if (!IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
/* PCI Init, will run VBIOS */
printk(BIOS_DEBUG, "Initialising IGD using VBIOS\n");
pci_dev_init(dev);
@@ -782,17 +205,16 @@ static void gma_func0_init(struct device *dev)
/* Post VBIOS init */
gma_pm_init_post_vbios(dev, edid_lvds.ascii_string);
- int vga_disable = (pci_read_config16(dev, D0F0_GGC) & 2) >> 1;
-
- if (vga_disable) {
- printk(BIOS_INFO,
- "IGD is not decoding legacy VGA MEM and IO: skipping NATIVE graphic init\n");
- } else {
- if (IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT)) {
- gma_ngi(dev, &edid_lvds);
- } else if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
+ if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
+ int vga_disable = (pci_read_config16(dev, D0F0_GGC) & 2) >> 1;
+ if (vga_disable) {
+ printk(BIOS_INFO,
+ "IGD is not decoding legacy VGA MEM and IO: skipping NATIVE graphic init\n");
+ } else {
int lightup_ok;
gma_gfxinit(&lightup_ok);
+ /* Linux relies on VBT for panel info. */
+ generate_fake_intel_oprom(&conf->gfx, dev, "$VBT CANTIGA");
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 07:49:08 +0000