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-rw-r--r--src/northbridge/intel/x4x/Kconfig2
-rw-r--r--src/northbridge/intel/x4x/gma.c338
2 files changed, 1 insertions, 339 deletions
diff --git a/src/northbridge/intel/x4x/Kconfig b/src/northbridge/intel/x4x/Kconfig
index 6e3a19c277..1c65614d9d 100644
--- a/src/northbridge/intel/x4x/Kconfig
+++ b/src/northbridge/intel/x4x/Kconfig
@@ -25,8 +25,6 @@ config NORTHBRIDGE_SPECIFIC_OPTIONS # dummy
select LAPIC_MONOTONIC_TIMER
select VGA
select INTEL_GMA_ACPI
- select HAVE_LINEAR_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT
- select HAVE_VGA_TEXT_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT
select CACHE_MRC_SETTINGS
select POSTCAR_STAGE
select POSTCAR_CONSOLE
diff --git a/src/northbridge/intel/x4x/gma.c b/src/northbridge/intel/x4x/gma.c
index f38d64d517..2d2feee61c 100644
--- a/src/northbridge/intel/x4x/gma.c
+++ b/src/northbridge/intel/x4x/gma.c
@@ -58,335 +58,6 @@ void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb)
gnvs_ptr->aslb = aslb;
}
-static u8 edid_is_present(u8 *edid, u32 edid_size)
-{
- u32 i;
- for (i = 0; i < edid_size; i++) {
- if (*(edid + i) != 0)
- return 1;
- }
- return 0;
-}
-static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
- u8 *mmio, u32 physbase, u16 piobase, u32 lfb)
-{
-
-
- int i;
- u8 edid_data[128];
- struct edid edid;
- struct edid_mode *mode;
- u8 edid_is_found;
-
- /* Initialise mode variables for 640 x 480 @ 60Hz */
- u32 hactive = 640, vactive = 480;
- u32 right_border = 0, bottom_border = 0;
- int hpolarity = 0, vpolarity = 0;
- u32 hsync = 96, vsync = 2;
- u32 hblank = 160, vblank = 45;
- u32 hfront_porch = 16, vfront_porch = 10;
- u32 target_frequency = 25175;
-
- u32 err_most = 0xffffffff;
- u32 pixel_p1 = 1;
- u32 pixel_p2;
- u32 pixel_n = 1;
- u32 pixel_m1 = 1;
- u32 pixel_m2 = 1;
-
- u8 vga_gmbus = GMBUS_PORT_VGADDC;
-
- if (IS_ENABLED(CONFIG_GFX_GMA_ANALOG_I2C_HDMI_B))
- vga_gmbus = GMBUS_PORT_DPB;
- else if (IS_ENABLED(CONFIG_GFX_GMA_ANALOG_I2C_HDMI_C))
- vga_gmbus = GMBUS_PORT_DPC;
- else if (IS_ENABLED(CONFIG_GFX_GMA_ANALOG_I2C_HDMI_D))
- vga_gmbus = GMBUS_PORT_DPD;
-
- vga_gr_write(0x18, 0);
-
- /* Set up GTT */
- for (i = 0; i < 0x1000; 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);
-
- /*
- * TODO: check if it is actually an analog display.
- * No harm is done but the console output could be confusing.
- */
- intel_gmbus_read_edid(mmio + GMBUS0, vga_gmbus, 0x50, edid_data,
- sizeof(edid_data));
- intel_gmbus_stop(mmio + GMBUS0);
- decode_edid(edid_data,
- sizeof(edid_data), &edid);
- mode = &edid.mode;
-
-
- /* Disable screen memory to prevent garbage from appearing. */
- vga_sr_write(1, vga_sr_read(1) | 0x20);
-
- edid_is_found = edid_is_present(edid_data, sizeof(edid_data));
- if (edid_is_found) {
- printk(BIOS_DEBUG, "EDID is not null");
- 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;
- } else
- printk(BIOS_DEBUG, "EDID is null, using 640 x 480 @ 60Hz mode");
-
- 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 >= 16; 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 < err_most) {
- err_most = this_err;
- pixel_n = candn;
- pixel_m1 = candm1;
- pixel_m2 = candm2;
- pixel_p1 = candp1;
- }
- }
- }
- }
- }
-
- if (err_most == 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, "Polarities %d, %d\n",
- hpolarity, vpolarity);
- printk(BIOS_DEBUG, "Pixel N=%d, M1=%d, M2=%d, P1=%d, P2=%d\n",
- pixel_n, pixel_m1, pixel_m2, pixel_p1, pixel_p2);
- printk(BIOS_DEBUG, "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,
- hactive * vactive * 4);
- set_vbe_mode_info_valid(&edid, lfb);
- }
-}
-
-static void native_init(struct device *dev)
-{
- struct resource *lfb_res;
- struct resource *pio_res;
- u32 physbase;
- struct resource *gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0);
- struct northbridge_intel_x4x_config *conf = dev->chip_info;
-
- 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 (gtt_res && gtt_res->base) {
- printk(BIOS_SPEW,
- "Initializing VGA without OPROM. MMIO 0x%llx\n",
- gtt_res->base);
- intel_gma_init(conf, res2mmio(gtt_res, 0, 0),
- physbase, pio_res->base, lfb_res->base);
- }
-
- /* Linux relies on VBT for panel info. */
- generate_fake_intel_oprom(&conf->gfx, dev, "$VBT EAGLELAKE");
-}
-
static void gma_func0_init(struct device *dev)
{
u16 reg16, ggc;
@@ -405,14 +76,7 @@ static void gma_func0_init(struct device *dev)
ggc = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0, 0)), D0F0_GGC);
- if (IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT)) {
- if (ggc & (1 << 1)) {
- printk(BIOS_DEBUG, "VGA cycles not assigned to IGD. "
- "Not running native graphic init.\n");
- return;
- }
- native_init(dev);
- } else if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
+ if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
int lightup_ok;
gma_gfxinit(&lightup_ok);
} else {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 11:20:17 +0000