nb/intel/nehalem: Remove the C native graphic init

Libgfxinit provides a better alternative to the native C init. While libgfxinit
mandates an ada compiler, we want to encourage use of it since it is in much
better shape and is actually maintained.

This way libgfxinit also gets build-tested by Jenkins.

Change-Id: I9228fa7eadfe2a827c1f4de9d6710b60d3f1b121
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/27515
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Arthur Heymans 2018-07-17 16:59:38 +02:00 committed by Patrick Georgi
parent 3d00f7798c
commit 4c2f26c9fc
4 changed files with 4 additions and 463 deletions

View File

@ -14,7 +14,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select HAVE_ACPI_TABLES select HAVE_ACPI_TABLES
select INTEL_INT15 select INTEL_INT15
select HAVE_ACPI_RESUME select HAVE_ACPI_RESUME
select MAINBOARD_HAS_NATIVE_VGA_INIT
select MAINBOARD_HAS_LIBGFXINIT select MAINBOARD_HAS_LIBGFXINIT
select SUPERIO_NSC_PC87382 select SUPERIO_NSC_PC87382
select DRIVERS_LENOVO_WACOM select DRIVERS_LENOVO_WACOM

View File

@ -13,7 +13,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select BOARD_ROMSIZE_KB_4096 select BOARD_ROMSIZE_KB_4096
select HAVE_ACPI_TABLES select HAVE_ACPI_TABLES
select HAVE_ACPI_RESUME select HAVE_ACPI_RESUME
select MAINBOARD_HAS_NATIVE_VGA_INIT
select MAINBOARD_HAS_LIBGFXINIT select MAINBOARD_HAS_LIBGFXINIT
select INTEL_INT15 select INTEL_INT15
select EC_ACPI select EC_ACPI

View File

@ -21,8 +21,6 @@ config NORTHBRIDGE_INTEL_NEHALEM
select TSC_MONOTONIC_TIMER select TSC_MONOTONIC_TIMER
select INTEL_GMA_ACPI select INTEL_GMA_ACPI
select CACHE_MRC_SETTINGS select CACHE_MRC_SETTINGS
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_STAGE
select POSTCAR_CONSOLE select POSTCAR_CONSOLE

View File

@ -571,441 +571,6 @@ static void gma_pm_init_post_vbios(struct device *dev)
} }
} }
static void train_link(u8 *mmio)
{
/* Clear interrupts. */
write32(mmio + DEIIR, 0xffffffff);
write32(mmio + 0x000f0018, 0x000000ff);
write32(mmio + 0x000f1018, 0x000000ff);
write32(mmio + 0x000f000c, 0x001a2050);
write32(mmio + 0x00060100, 0x001c4000);
write32(mmio + 0x00060100, 0x801c4000);
write32(mmio + 0x000f000c, 0x801a2050);
write32(mmio + 0x00060100, 0x801c4000);
write32(mmio + 0x000f000c, 0x801a2050);
mdelay(1);
read32(mmio + 0x000f0014); // = 0x00000100
write32(mmio + 0x000f0014, 0x00000100);
write32(mmio + 0x00060100, 0x901c4000);
write32(mmio + 0x000f000c, 0x901a2050);
mdelay(1);
read32(mmio + 0x000f0014); // = 0x00000600
}
static void power_port(u8 *mmio)
{
read32(mmio + 0x000e1100); // = 0x00000000
write32(mmio + 0x000e1100, 0x00000000);
write32(mmio + 0x000e1100, 0x00010000);
read32(mmio + 0x000e1100); // = 0x00010000
read32(mmio + 0x000e1100); // = 0x00010000
read32(mmio + 0x000e1100); // = 0x00000000
write32(mmio + 0x000e1100, 0x00000000);
read32(mmio + 0x000e1100); // = 0x00000000
read32(mmio + 0x000e4200); // = 0x0000001c
write32(mmio + 0x000e4210, 0x8004003e);
write32(mmio + 0x000e4214, 0x80060002);
write32(mmio + 0x000e4218, 0x01000000);
read32(mmio + 0x000e4210); // = 0x5144003e
write32(mmio + 0x000e4210, 0x5344003e);
read32(mmio + 0x000e4210); // = 0x0144003e
write32(mmio + 0x000e4210, 0x8074003e);
read32(mmio + 0x000e4210); // = 0x5144003e
read32(mmio + 0x000e4210); // = 0x5144003e
write32(mmio + 0x000e4210, 0x5344003e);
read32(mmio + 0x000e4210); // = 0x0144003e
write32(mmio + 0x000e4210, 0x8074003e);
read32(mmio + 0x000e4210); // = 0x5144003e
read32(mmio + 0x000e4210); // = 0x5144003e
write32(mmio + 0x000e4210, 0x5344003e);
read32(mmio + 0x000e4210); // = 0x0144003e
write32(mmio + 0x000e4210, 0x8074003e);
read32(mmio + 0x000e4210); // = 0x5144003e
read32(mmio + 0x000e4210); // = 0x5144003e
write32(mmio + 0x000e4210, 0x5344003e);
write32(mmio + 0x000e4f00, 0x0100030c);
write32(mmio + 0x000e4f04, 0x00b8230c);
write32(mmio + 0x000e4f08, 0x06f8930c);
write32(mmio + 0x000e4f0c, 0x09f8e38e);
write32(mmio + 0x000e4f10, 0x00b8030c);
write32(mmio + 0x000e4f14, 0x0b78830c);
write32(mmio + 0x000e4f18, 0x0ff8d3cf);
write32(mmio + 0x000e4f1c, 0x01e8030c);
write32(mmio + 0x000e4f20, 0x0ff863cf);
write32(mmio + 0x000e4f24, 0x0ff803cf);
write32(mmio + 0x000c4030, 0x00001000);
read32(mmio + 0x000c4000); // = 0x00000000
write32(mmio + 0x000c4030, 0x00001000);
read32(mmio + 0x000e1150); // = 0x0000001c
write32(mmio + 0x000e1150, 0x0000089c);
write32(mmio + 0x000fcc00, 0x01986f00);
write32(mmio + 0x000fcc0c, 0x01986f00);
write32(mmio + 0x000fcc18, 0x01986f00);
write32(mmio + 0x000fcc24, 0x01986f00);
read32(mmio + 0x000c4000); // = 0x00000000
read32(mmio + 0x000e1180); // = 0x40000002
}
static void intel_gma_init(const struct northbridge_intel_nehalem_config *info,
u8 *mmio, u32 physbase, u16 piobase, u32 lfb)
{
int i;
u8 edid_data[128];
struct edid edid;
struct edid_mode *mode;
u32 hactive, vactive, right_border, bottom_border;
int hpolarity, vpolarity;
u32 vsync, hsync, vblank, hblank, hfront_porch, vfront_porch;
u32 candp1, candn;
u32 best_delta = 0xffffffff;
u32 target_frequency;
u32 pixel_p1 = 1;
u32 pixel_n = 1;
u32 pixel_m1 = 1;
u32 pixel_m2 = 1;
u32 link_frequency = info->gfx.link_frequency_270_mhz ? 270000 : 162000;
u32 data_m1;
u32 data_n1 = 0x00800000;
u32 link_m1;
u32 link_n1 = 0x00080000;
write32(mmio + 0x00070080, 0x00000000);
write32(mmio + DSPCNTR(0), 0x00000000);
write32(mmio + 0x00071180, 0x00000000);
write32(mmio + CPU_VGACNTRL, 0x0000298e | VGA_DISP_DISABLE);
write32(mmio + 0x0007019c, 0x00000000);
write32(mmio + 0x0007119c, 0x00000000);
write32(mmio + 0x000fc008, 0x2c010000);
write32(mmio + 0x000fc020, 0x2c010000);
write32(mmio + 0x000fc038, 0x2c010000);
write32(mmio + 0x000fc050, 0x2c010000);
write32(mmio + 0x000fc408, 0x2c010000);
write32(mmio + 0x000fc420, 0x2c010000);
write32(mmio + 0x000fc438, 0x2c010000);
write32(mmio + 0x000fc450, 0x2c010000);
vga_gr_write(0x18, 0);
write32(mmio + 0x00042004, 0x02000000);
write32(mmio + 0x000fd034, 0x8421ffe0);
/* Setup GTT. */
for (i = 0; i < 0x2000; i++)
{
outl((i << 2) | 1, piobase);
outl(physbase + (i << 12) + 1, piobase + 4);
}
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]);
power_port(mmio);
intel_gmbus_read_edid(mmio + PCH_GMBUS0, GMBUS_PORT_PANEL, 0x50,
edid_data, sizeof(edid_data));
intel_gmbus_stop(mmio + PCH_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);
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->lvds_dual_channel ? mode->pixel_clock
: (2 * mode->pixel_clock);
vga_textmode_init();
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);
}
/* Find suitable divisors. */
for (candp1 = 1; candp1 <= 8; candp1++) {
for (candn = 5; candn <= 10; candn++) {
u32 cur_frequency;
u32 m; /* 77 - 131. */
u32 denom; /* 35 - 560. */
u32 current_delta;
denom = candn * candp1 * 7;
/* Doesn't overflow for up to
5000000 kHz = 5 GHz. */
m = (target_frequency * denom + 60000) / 120000;
if (m < 77 || m > 131)
continue;
cur_frequency = (120000 * m) / denom;
if (target_frequency > cur_frequency)
current_delta = target_frequency - cur_frequency;
else
current_delta = cur_frequency - target_frequency;
if (best_delta > current_delta) {
best_delta = current_delta;
pixel_n = candn;
pixel_p1 = candp1;
pixel_m2 = ((m + 3) % 5) + 7;
pixel_m1 = (m - pixel_m2) / 5;
}
}
}
if (best_delta == 0xffffffff) {
printk (BIOS_ERR, "Couldn't find GFX clock divisors\n");
return;
}
link_m1 = ((uint64_t)link_n1 * mode->pixel_clock) / link_frequency;
data_m1 = ((uint64_t)data_n1 * 18 * mode->pixel_clock)
/ (link_frequency * 8 * 4);
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, "Data M1=%d, N1=%d\n",
data_m1, data_n1);
printk(BIOS_DEBUG, "Link frequency %d kHz\n",
link_frequency);
printk(BIOS_DEBUG, "Link M1=%d, N1=%d\n",
link_m1, link_n1);
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",
120000 * (5 * pixel_m1 + pixel_m2) / pixel_n
/ (pixel_p1 * 7));
write32(mmio + PCH_LVDS,
(hpolarity << 20) | (vpolarity << 21)
| (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
| LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
| LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL
| LVDS_DETECTED);
write32(mmio + BLC_PWM_CPU_CTL2, (1 << 31));
write32(mmio + PCH_DREF_CONTROL, (info->gfx.use_spread_spectrum_clock
? 0x1002 : 0x400));
mdelay(1);
write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS
| (read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK));
write32(mmio + _PCH_FP0(0),
((pixel_n - 2) << 16)
| ((pixel_m1 - 2) << 8) | pixel_m2);
write32(mmio + _PCH_DPLL(0),
DPLL_VCO_ENABLE | DPLLB_MODE_LVDS
| (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)
| (0x1 << (pixel_p1 - 1)));
mdelay(1);
write32(mmio + _PCH_DPLL(0),
DPLL_VCO_ENABLE | DPLLB_MODE_LVDS
| (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)
| (0x1 << (pixel_p1 - 1)));
/* Re-lock the registers. */
write32(mmio + PCH_PP_CONTROL,
(read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK));
write32(mmio + PCH_LVDS,
(hpolarity << 20) | (vpolarity << 21)
| (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
| LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
| LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL
| LVDS_DETECTED);
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)
| (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);
} 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));
}
mdelay(1);
write32(mmio + PIPE_DATA_M1(0), 0x7e000000 | data_m1);
write32(mmio + PIPE_DATA_N1(0), data_n1);
write32(mmio + PIPE_LINK_M1(0), link_m1);
write32(mmio + PIPE_LINK_N1(0), link_n1);
write32(mmio + 0x000f000c, 0x00002040);
mdelay(1);
write32(mmio + 0x000f000c, 0x00002050);
write32(mmio + 0x00060100, 0x00044000);
mdelay(1);
write32(mmio + PIPECONF(0), PIPECONF_BPP_6);
write32(mmio + 0x000f0008, 0x00000040);
write32(mmio + 0x000f000c, 0x00022050);
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 + CPU_VGACNTRL, 0x20298e | VGA_DISP_DISABLE);
else
write32(mmio + CPU_VGACNTRL, 0x20298e);
train_link(mmio);
if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
write32(mmio + DSPCNTR(0),
DISPLAY_PLANE_ENABLE | DISPPLANE_BGRX888);
mdelay(1);
}
write32(mmio + TRANS_HTOTAL(0),
((hactive + right_border + hblank - 1) << 16)
| (hactive - 1));
write32(mmio + TRANS_HBLANK(0),
((hactive + right_border + hblank - 1) << 16)
| (hactive + right_border - 1));
write32(mmio + TRANS_HSYNC(0),
((hactive + right_border + hfront_porch + hsync - 1) << 16)
| (hactive + right_border + hfront_porch - 1));
write32(mmio + TRANS_VTOTAL(0),
((vactive + bottom_border + vblank - 1) << 16)
| (vactive - 1));
write32(mmio + TRANS_VBLANK(0),
((vactive + bottom_border + vblank - 1) << 16)
| (vactive + bottom_border - 1));
write32(mmio + TRANS_VSYNC(0),
(vactive + bottom_border + vfront_porch + vsync - 1)
| (vactive + bottom_border + vfront_porch - 1));
write32(mmio + 0x00060100, 0xb01c4000);
write32(mmio + 0x000f000c, 0xb01a2050);
mdelay(1);
write32(mmio + TRANSCONF(0), TRANS_ENABLE | TRANS_6BPC |
(IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER) ? TRANS_STATE_MASK : 0));
write32(mmio + PCH_LVDS,
LVDS_PORT_ENABLE
| (hpolarity << 20) | (vpolarity << 21)
| (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
| LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
| LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL
| LVDS_DETECTED);
write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_OFF);
write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_RESET);
mdelay(1);
write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS
| PANEL_POWER_ON | PANEL_POWER_RESET);
printk (BIOS_DEBUG, "waiting for panel powerup\n");
while (1) {
u32 reg32;
reg32 = read32(mmio + PCH_PP_STATUS);
if (((reg32 >> 28) & 3) == 0)
break;
}
printk (BIOS_DEBUG, "panel powered up\n");
write32(mmio + PCH_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);
/* Doesn't change any hw behaviour but vga oprom expects it there. */
write32(mmio + 0x0004f040, 0x01000008);
write32(mmio + 0x0004f04c, 0x7f7f0000);
write32(mmio + 0x0004f054, 0x0000020d);
if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
memset((void *)lfb, 0,
edid.x_resolution * edid.y_resolution * 4);
set_vbe_mode_info_valid(&edid, lfb);
}
}
/* Enable SCI to ACPI _GPE._L06 */ /* Enable SCI to ACPI _GPE._L06 */
static void gma_enable_swsci(void) static void gma_enable_swsci(void)
{ {
@ -1037,32 +602,12 @@ static void gma_func0_init(struct device *dev)
/* Init graphics power management */ /* Init graphics power management */
gma_pm_init_pre_vbios(dev); gma_pm_init_pre_vbios(dev);
if (IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) || if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
u32 physbase;
struct northbridge_intel_nehalem_config *conf = dev->chip_info; struct northbridge_intel_nehalem_config *conf = dev->chip_info;
struct resource *lfb_res; int lightup_ok;
struct resource *pio_res; printk(BIOS_SPEW, "Initializing VGA without OPROM.");
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 && physbase &&
pio_res && pio_res->base && lfb_res && lfb_res->base) {
printk(BIOS_SPEW,
"Initializing VGA without OPROM. MMIO 0x%llx\n",
gtt_res->base);
if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
int lightup_ok;
gma_gfxinit(&lightup_ok);
} else {
intel_gma_init(conf, res2mmio(gtt_res, 0, 0),
physbase, pio_res->base, lfb_res->base);
}
}
gma_gfxinit(&lightup_ok);
/* Linux relies on VBT for panel info. */ /* Linux relies on VBT for panel info. */
generate_fake_intel_oprom(&conf->gfx, dev, generate_fake_intel_oprom(&conf->gfx, dev,
"$VBT IRONLAKE-MOBILE"); "$VBT IRONLAKE-MOBILE");