diff options
Diffstat (limited to 'src/soc/intel/broadwell/gma.c')
| -rw-r--r-- | src/soc/intel/broadwell/gma.c | 609 |
1 files changed, 609 insertions, 0 deletions
diff --git a/src/soc/intel/broadwell/gma.c b/src/soc/intel/broadwell/gma.c new file mode 100644 index 0000000000..ba453cdb27 --- /dev/null +++ b/src/soc/intel/broadwell/gma.c @@ -0,0 +1,609 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <acpi/acpi.h> +#include <device/mmio.h> +#include <device/pci_ops.h> +#include <bootmode.h> +#include <console/console.h> +#include <delay.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <string.h> +#include <reg_script.h> +#include <drivers/intel/gma/i915.h> +#include <drivers/intel/gma/i915_reg.h> +#include <drivers/intel/gma/libgfxinit.h> +#include <drivers/intel/gma/opregion.h> +#include <soc/cpu.h> +#include <soc/pm.h> +#include <soc/ramstage.h> +#include <soc/systemagent.h> +#include <soc/intel/broadwell/chip.h> +#include <security/vboot/vbnv.h> +#include <soc/igd.h> +#include <types.h> + +#define GT_RETRY 1000 +enum { + GT_CDCLK_DEFAULT = 0, + GT_CDCLK_337, + GT_CDCLK_450, + GT_CDCLK_540, + GT_CDCLK_675, +}; + +static u32 reg_em4; +static u32 reg_em5; + +u32 igd_get_reg_em4(void) { return reg_em4; } +u32 igd_get_reg_em5(void) { return reg_em5; } + +struct reg_script haswell_early_init_script[] = { + /* Enable Force Wake */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa180, 0x00000020), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00010001), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, FORCEWAKE_ACK_HSW, 1, 1, GT_RETRY), + + /* Enable Counters */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa248, 0x00000016), + + /* GFXPAUSE settings */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa000, 0x00070020), + + /* ECO Settings */ + REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0xa180, 0xff3fffff, 0x15000000), + + /* Enable DOP Clock Gating */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9424, 0x000003fd), + + /* Enable Unit Level Clock Gating */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9400, 0x00000080), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9404, 0x40401000), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9408, 0x00000000), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x940c, 0x02000001), + + /* + * RC6 Settings + */ + + /* Wake Rate Limits */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa090, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa098, 0x03e80000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa09c, 0x00280000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0a8, 0x0001e848), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0ac, 0x00000019), + + /* Render/Video/Blitter Idle Max Count */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x02054, 0x0000000a), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x12054, 0x0000000a), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x22054, 0x0000000a), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1a054, 0x0000000a), + + /* RC Sleep / RCx Thresholds */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0b0, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0b4, 0x000003e8), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0b8, 0x0000c350), + + /* RP Settings */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa010, 0x000f4240), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa014, 0x12060000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa02c, 0x0000e808), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa030, 0x0003bd08), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa068, 0x000101d0), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa06c, 0x00055730), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa070, 0x0000000a), + + /* RP Control */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa024, 0x00000b92), + + /* HW RC6 Control */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa090, 0x88040000), + + /* Video Frequency Request */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa00c, 0x08000000), + + /* Set RC6 VIDs */ + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x138124, (1 << 31), 0, GT_RETRY), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138128, 0), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138124, 0x80000004), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x138124, (1 << 31), 0, GT_RETRY), + + /* Enable PM Interrupts */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x4402c, 0x03000076), + + /* Enable RC6 in idle */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa094, 0x00040000), + + REG_SCRIPT_END +}; + +static const struct reg_script haswell_late_init_script[] = { + /* Lock settings */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a248, (1 << 31)), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a004, (1 << 4)), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a080, (1 << 2)), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a180, (1 << 31)), + + /* Disable Force Wake */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00010000), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, FORCEWAKE_ACK_HSW, 1, 0, GT_RETRY), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00000001), + + /* Enable power well for DP and Audio */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x45400, (1 << 31)), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x45400, + (1 << 30), (1 << 30), GT_RETRY), + + REG_SCRIPT_END +}; + +static const struct reg_script broadwell_early_init_script[] = { + /* Enable Force Wake */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00010001), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, FORCEWAKE_ACK_HSW, 1, 1, GT_RETRY), + + /* Enable push bus metric control and shift */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa248, 0x00000004), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa250, 0x000000ff), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa25c, 0x00000010), + + /* GFXPAUSE settings (set based on stepping) */ + + /* ECO Settings */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa180, 0x45200000), + + /* Enable DOP Clock Gating */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9424, 0x000000fd), + + /* Enable Unit Level Clock Gating */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9400, 0x00000000), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9404, 0x40401000), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9408, 0x00000000), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x940c, 0x02000001), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1a054, 0x0000000a), + + /* Video Frequency Request */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa00c, 0x08000000), + + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138158, 0x00000009), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x13815c, 0x0000000d), + + /* + * RC6 Settings + */ + + /* Wake Rate Limits */ + REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x0a090, 0, 0), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a098, 0x03e80000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a09c, 0x00280000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a0a8, 0x0001e848), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a0ac, 0x00000019), + + /* Render/Video/Blitter Idle Max Count */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x02054, 0x0000000a), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x12054, 0x0000000a), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x22054, 0x0000000a), + + /* RC Sleep / RCx Thresholds */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a0b0, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a0b8, 0x00000271), + + /* RP Settings */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a010, 0x000f4240), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a014, 0x12060000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a02c, 0x0000e808), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a030, 0x0003bd08), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a068, 0x000101d0), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a06c, 0x00055730), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a070, 0x0000000a), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a168, 0x00000006), + + /* RP Control */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa024, 0x00000b92), + + /* HW RC6 Control */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa090, 0x90040000), + + /* Set RC6 VIDs */ + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x138124, (1 << 31), 0, GT_RETRY), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138128, 0), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138124, 0x80000004), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x138124, (1 << 31), 0, GT_RETRY), + + /* Enable PM Interrupts */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x4402c, 0x03000076), + + /* Enable RC6 in idle */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa094, 0x00040000), + + REG_SCRIPT_END +}; + +static const struct reg_script broadwell_late_init_script[] = { + /* Lock settings */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a248, (1 << 31)), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a000, (1 << 18)), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a180, (1 << 31)), + + /* Disable Force Wake */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00010000), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, FORCEWAKE_ACK_HSW, 1, 0, GT_RETRY), + + /* Enable power well for DP and Audio */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x45400, (1 << 31)), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x45400, + (1 << 30), (1 << 30), GT_RETRY), + + REG_SCRIPT_END +}; + +u32 map_oprom_vendev(u32 vendev) +{ + return SA_IGD_OPROM_VENDEV; +} + +static struct resource *gtt_res = NULL; + +u32 gtt_read(u32 reg) +{ + u32 val; + val = read32(res2mmio(gtt_res, reg, 0)); + return val; + +} + +void gtt_write(u32 reg, u32 data) +{ + write32(res2mmio(gtt_res, reg, 0), data); +} + +static inline void gtt_rmw(u32 reg, u32 andmask, u32 ormask) +{ + u32 val = gtt_read(reg); + val &= andmask; + val |= ormask; + gtt_write(reg, val); +} + +int gtt_poll(u32 reg, u32 mask, u32 value) +{ unsigned int try = GT_RETRY; + u32 data; + + while (try--) { + data = gtt_read(reg); + if ((data & mask) == value) + return 1; + udelay(10); + } + + printk(BIOS_ERR, "GT init timeout\n"); + return 0; +} + +static void igd_setup_panel(struct device *dev) +{ + config_t *conf = config_of(dev); + u32 reg32; + + /* Setup Digital Port Hotplug */ + reg32 = gtt_read(PCH_PORT_HOTPLUG); + if (!reg32) { + reg32 = (conf->gpu_dp_b_hotplug & 0x7) << 2; + reg32 |= (conf->gpu_dp_c_hotplug & 0x7) << 10; + reg32 |= (conf->gpu_dp_d_hotplug & 0x7) << 18; + gtt_write(PCH_PORT_HOTPLUG, reg32); + } + + /* Setup Panel Power On Delays */ + reg32 = gtt_read(PCH_PP_ON_DELAYS); + if (!reg32) { + reg32 |= (conf->gpu_panel_power_up_delay & 0x1fff) << 16; + reg32 |= (conf->gpu_panel_power_backlight_on_delay & 0x1fff); + gtt_write(PCH_PP_ON_DELAYS, reg32); + } + + /* Setup Panel Power Off Delays */ + reg32 = gtt_read(PCH_PP_OFF_DELAYS); + if (!reg32) { + reg32 = (conf->gpu_panel_power_down_delay & 0x1fff) << 16; + reg32 |= (conf->gpu_panel_power_backlight_off_delay & 0x1fff); + gtt_write(PCH_PP_OFF_DELAYS, reg32); + } + + /* Setup Panel Power Cycle Delay */ + if (conf->gpu_panel_power_cycle_delay) { + reg32 = gtt_read(PCH_PP_DIVISOR); + reg32 &= ~0xff; + reg32 |= conf->gpu_panel_power_cycle_delay & 0xff; + gtt_write(PCH_PP_DIVISOR, reg32); + } + + /* So far all devices seem to use the PCH PWM function. + The CPU PWM registers are all zero after reset. */ + if (conf->gpu_pch_backlight_pwm_hz) { + /* For Lynx Point-LP: + Reference clock is 24MHz. We can choose either a 16 + or a 128 step increment. Use 16 if we would have less + than 100 steps otherwise. */ + const unsigned int hz_limit = 24 * 1000 * 1000 / 128 / 100; + unsigned int pwm_increment, pwm_period; + u32 south_chicken2; + + south_chicken2 = gtt_read(SOUTH_CHICKEN2); + if (conf->gpu_pch_backlight_pwm_hz > hz_limit) { + pwm_increment = 16; + south_chicken2 |= 1 << 5; + } else { + pwm_increment = 128; + south_chicken2 &= ~(1 << 5); + } + gtt_write(SOUTH_CHICKEN2, south_chicken2); + + pwm_period = 24 * 1000 * 1000 / pwm_increment / conf->gpu_pch_backlight_pwm_hz; + /* Start with a 50% duty cycle. */ + gtt_write(BLC_PWM_PCH_CTL2, pwm_period << 16 | pwm_period / 2); + + gtt_write(BLC_PWM_PCH_CTL1, + (conf->gpu_pch_backlight_polarity == GPU_BACKLIGHT_POLARITY_LOW) << 29 | + BLM_PCH_OVERRIDE_ENABLE | BLM_PCH_PWM_ENABLE); + } +} + +static int igd_get_cdclk_haswell(u32 *const cdsel, int *const inform_pc, + struct device *const dev) +{ + const config_t *const conf = config_of(dev); + int cdclk = conf->cdclk; + + /* Check for ULX GT1 or GT2 */ + const int devid = pci_read_config16(dev, PCI_DEVICE_ID); + const int gpu_is_ulx = devid == IGD_HASWELL_ULX_GT1 || + devid == IGD_HASWELL_ULX_GT2; + + /* Check for fixed fused clock */ + if (gtt_read(0x42014) & 1 << 24) + cdclk = GT_CDCLK_450; + + /* + * ULX defaults to 337MHz with possible override for 450MHz + * ULT is fixed at 450MHz + * others default to 540MHz with possible override for 450MHz + */ + if (gpu_is_ulx && cdclk <= GT_CDCLK_337) + cdclk = GT_CDCLK_337; + else if (gpu_is_ulx || cpu_is_ult() || + cdclk == GT_CDCLK_337 || cdclk == GT_CDCLK_450) + cdclk = GT_CDCLK_450; + else + cdclk = GT_CDCLK_540; + + *cdsel = cdclk != GT_CDCLK_450; + *inform_pc = gpu_is_ulx; + return cdclk; +} + +static int igd_get_cdclk_broadwell(u32 *const cdsel, int *const inform_pc, + struct device *const dev) +{ + static const u32 cdsel_by_cdclk[] = { 0, 2, 0, 1, 3 }; + const config_t *const conf = config_of(dev); + int cdclk = conf->cdclk; + + /* Check for ULX */ + const int devid = pci_read_config16(dev, PCI_DEVICE_ID); + const int gpu_is_ulx = devid == IGD_BROADWELL_Y_GT2; + + /* Inform power controller of upcoming frequency change */ + gtt_write(0x138128, 0); + gtt_write(0x13812c, 0); + gtt_write(0x138124, 0x80000018); + + /* Poll GT driver mailbox for run/busy clear */ + if (gtt_poll(0x138124, (1 << 31), (0 << 31))) { + *inform_pc = 1; + } else { + cdclk = GT_CDCLK_450; + *inform_pc = 0; + } + + /* Check for fixed fused clock */ + if (gtt_read(0x42014) & 1 << 24) + cdclk = GT_CDCLK_450; + + /* + * ULX defaults to 450MHz with possible override up to 540MHz + * ULT defaults to 540MHz with possible override up to 675MHz + * others default to 675MHz with possible override for lower freqs + */ + if (cdclk == GT_CDCLK_337) + cdclk = GT_CDCLK_337; + else if (cdclk == GT_CDCLK_450 || + (gpu_is_ulx && cdclk == GT_CDCLK_DEFAULT)) + cdclk = GT_CDCLK_450; + else if (cdclk == GT_CDCLK_540 || gpu_is_ulx || + (cpu_is_ult() && cdclk == GT_CDCLK_DEFAULT)) + cdclk = GT_CDCLK_540; + else + cdclk = GT_CDCLK_675; + + *cdsel = cdsel_by_cdclk[cdclk]; + return cdclk; +} + +static void igd_cdclk_init(struct device *dev, const int is_broadwell) +{ + u32 dpdiv, cdsel, cdval; + int cdclk, inform_pc; + + if (is_broadwell) + cdclk = igd_get_cdclk_broadwell(&cdsel, &inform_pc, dev); + else + cdclk = igd_get_cdclk_haswell(&cdsel, &inform_pc, dev); + + /* Set variables based on CD Clock setting */ + switch (cdclk) { + case GT_CDCLK_337: + cdval = 337; + dpdiv = 169; + reg_em4 = 16; + reg_em5 = 225; + break; + case GT_CDCLK_450: + cdval = 449; + dpdiv = 225; + reg_em4 = 4; + reg_em5 = 75; + break; + case GT_CDCLK_540: + cdval = 539; + dpdiv = 270; + reg_em4 = 4; + reg_em5 = 90; + break; + case GT_CDCLK_675: + cdval = 674; + dpdiv = 338; + reg_em4 = 8; + reg_em5 = 225; + default: + return; + } + + /* Set LPCLL_CTL CD Clock Frequency Select */ + gtt_rmw(0x130040, 0xf3ffffff, cdsel << 26); + + if (inform_pc) { + /* Inform power controller of selected frequency */ + gtt_write(0x138128, cdsel); + gtt_write(0x13812c, 0); + gtt_write(0x138124, 0x80000017); + } + + /* Program CD Clock Frequency */ + gtt_rmw(0x46200, 0xfffffc00, cdval); + + /* Set CPU DP AUX 2X bit clock dividers */ + gtt_rmw(0x64010, 0xfffff800, dpdiv); + gtt_rmw(0x64810, 0xfffff800, dpdiv); +} + +static void igd_init(struct device *dev) +{ + int is_broadwell = !!(cpu_family_model() == BROADWELL_FAMILY_ULT); + u32 rp1_gfx_freq; + + intel_gma_init_igd_opregion(); + + gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0); + if (!gtt_res || !gtt_res->base) + return; + + if (!CONFIG(NO_GFX_INIT)) + pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER); + + /* Wait for any configured pre-graphics delay */ + if (!acpi_is_wakeup_s3()) { +#if CONFIG(CHROMEOS) + if (display_init_required()) + mdelay(CONFIG_PRE_GRAPHICS_DELAY); +#else + mdelay(CONFIG_PRE_GRAPHICS_DELAY); +#endif + } + + /* Early init steps */ + if (is_broadwell) { + reg_script_run_on_dev(dev, broadwell_early_init_script); + + /* Set GFXPAUSE based on stepping */ + if (cpu_stepping() <= (CPUID_BROADWELL_E0 & 0xf) && + systemagent_revision() <= 9) { + gtt_write(0xa000, 0x300ff); + } else { + gtt_write(0xa000, 0x30020); + } + } else { + reg_script_run_on_dev(dev, haswell_early_init_script); + } + + /* Set RP1 graphics frequency */ + rp1_gfx_freq = (MCHBAR32(0x5998) >> 8) & 0xff; + gtt_write(0xa008, rp1_gfx_freq << 24); + + /* Post VBIOS panel setup */ + igd_setup_panel(dev); + + /* Initialize PCI device, load/execute BIOS Option ROM */ + pci_dev_init(dev); + + /* Late init steps */ + igd_cdclk_init(dev, is_broadwell); + if (is_broadwell) + reg_script_run_on_dev(dev, broadwell_late_init_script); + else + reg_script_run_on_dev(dev, haswell_late_init_script); + + if (gfx_get_init_done()) { + /* + * Work around VBIOS issue that is not clearing first 64 + * bytes of the framebuffer during VBE mode set. + */ + struct resource *fb = find_resource(dev, PCI_BASE_ADDRESS_2); + memset((void *)((u32)fb->base), 0, 64); + } + + if (!gfx_get_init_done() && !acpi_is_wakeup_s3()) { + /* + * Enable DDI-A if the Option ROM did not execute: + * + * bit 0: Display detected (RO) + * bit 4: DDI A supports 4 lanes and DDI E is not used + * bit 7: DDI buffer is idle + */ + gtt_write(DDI_BUF_CTL_A, DDI_BUF_IS_IDLE | DDI_A_4_LANES | + DDI_INIT_DISPLAY_DETECTED); + } + + if (CONFIG(MAINBOARD_USE_LIBGFXINIT)) { + int lightup_ok; + gma_gfxinit(&lightup_ok); + gfx_set_init_done(lightup_ok); + } +} + +static void gma_generate_ssdt(const struct device *dev) +{ + const struct soc_intel_broadwell_config *chip = dev->chip_info; + + drivers_intel_gma_displays_ssdt_generate(&chip->gfx); +} + +static struct device_operations igd_ops = { + .read_resources = &pci_dev_read_resources, + .set_resources = &pci_dev_set_resources, + .enable_resources = &pci_dev_enable_resources, + .init = &igd_init, + .ops_pci = &broadwell_pci_ops, + .acpi_fill_ssdt = gma_generate_ssdt, +}; + +static const unsigned short pci_device_ids[] = { + IGD_HASWELL_ULT_GT1, + IGD_HASWELL_ULT_GT2, + IGD_HASWELL_ULT_GT3, + IGD_BROADWELL_U_GT1, + IGD_BROADWELL_U_GT2, + IGD_BROADWELL_U_GT3_15W, + IGD_BROADWELL_U_GT3_28W, + IGD_BROADWELL_Y_GT2, + IGD_BROADWELL_H_GT2, + IGD_BROADWELL_H_GT3, + 0, +}; + +static const struct pci_driver igd_driver __pci_driver = { + .ops = &igd_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .devices = pci_device_ids, +}; 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