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/* SPDX-License-Identifier: GPL-2.0-only */
#include <arch/io.h>
#include <device/mmio.h>
#include <console/console.h>
#include <delay.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <drivers/intel/gma/edid.h>
#include <drivers/intel/gma/i915.h>
#include <drivers/intel/gma/intel_bios.h>
#include <drivers/intel/gma/libgfxinit.h>
#include <pc80/vga.h>
#include <drivers/intel/gma/opregion.h>
#include <types.h>
#include "chip.h"
#include "ironlake.h"
/* some vga option roms are used for several chipsets but they only have one
* PCI ID in their header. If we encounter such an option rom, we need to do
* the mapping ourselves
*/
u32 map_oprom_vendev(u32 vendev)
{
u32 new_vendev = vendev;
/* none currently. */
return new_vendev;
}
static struct resource *gtt_res = NULL;
u32 gtt_read(u32 reg)
{
return read32(res2mmio(gtt_res, reg, 0));
}
void gtt_write(u32 reg, u32 data)
{
write32(res2mmio(gtt_res, reg, 0), data);
}
#define GTT_RETRY 1000
int gtt_poll(u32 reg, u32 mask, u32 value)
{
unsigned int try = GTT_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 gma_pm_init_post_vbios(struct device *dev)
{
struct northbridge_intel_ironlake_config *conf = dev->chip_info;
u32 reg32;
printk(BIOS_DEBUG, "GT Power Management Init (post VBIOS)\n");
/* Setup Digital Port Hotplug */
reg32 = gtt_read(0xc4030);
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(0xc4030, reg32);
}
/* Setup Panel Power On Delays */
reg32 = gtt_read(0xc7208);
if (!reg32) {
reg32 = (conf->gpu_panel_port_select & 0x3) << 30;
reg32 |= (conf->gpu_panel_power_up_delay & 0x1fff) << 16;
reg32 |= (conf->gpu_panel_power_backlight_on_delay & 0x1fff);
gtt_write(0xc7208, reg32);
}
/* Setup Panel Power Off Delays */
reg32 = gtt_read(0xc720c);
if (!reg32) {
reg32 = (conf->gpu_panel_power_down_delay & 0x1fff) << 16;
reg32 |= (conf->gpu_panel_power_backlight_off_delay & 0x1fff);
gtt_write(0xc720c, reg32);
}
/* Setup Panel Power Cycle Delay */
if (conf->gpu_panel_power_cycle_delay) {
reg32 = gtt_read(0xc7210);
reg32 &= ~0xff;
reg32 |= conf->gpu_panel_power_cycle_delay & 0xff;
gtt_write(0xc7210, reg32);
}
/* Enable Backlight if needed */
if (conf->gpu_cpu_backlight) {
gtt_write(0x48250, (1 << 31));
gtt_write(0x48254, conf->gpu_cpu_backlight);
}
if (conf->gpu_pch_backlight) {
gtt_write(0xc8250, (1 << 31));
gtt_write(0xc8254, conf->gpu_pch_backlight);
}
}
/* Enable SCI to ACPI _GPE._L06 */
static void gma_enable_swsci(void)
{
u16 reg16;
/* clear DMISCI status */
reg16 = inw(DEFAULT_PMBASE + TCO1_STS);
reg16 &= DMISCI_STS;
outw(DEFAULT_PMBASE + TCO1_STS, reg16);
/* clear acpi tco status */
outl(DEFAULT_PMBASE + GPE0_STS, TCOSCI_STS);
/* enable acpi tco scis */
reg16 = inw(DEFAULT_PMBASE + GPE0_EN);
reg16 |= TCOSCI_EN;
outw(DEFAULT_PMBASE + GPE0_EN, reg16);
}
static void gma_func0_init(struct device *dev)
{
intel_gma_init_igd_opregion();
if (!CONFIG(NO_GFX_INIT))
pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0);
if (!gtt_res || !gtt_res->base)
return;
if (!acpi_is_wakeup_s3() &&
CONFIG(MAINBOARD_USE_LIBGFXINIT)) {
struct northbridge_intel_ironlake_config *conf = dev->chip_info;
int lightup_ok;
printk(BIOS_SPEW, "Initializing VGA without OPROM.");
gma_gfxinit(&lightup_ok);
/* Linux relies on VBT for panel info. */
generate_fake_intel_oprom(&conf->gfx, dev, "$VBT IRONLAKE-MOBILE");
} else {
/* PCI Init, will run VBIOS */
pci_dev_init(dev);
}
/* Post VBIOS init */
gma_pm_init_post_vbios(dev);
gma_enable_swsci();
}
static void gma_read_resources(struct device *dev)
{
pci_dev_read_resources(dev);
struct resource *res;
/* Set the graphics memory to write combining. */
res = find_resource(dev, PCI_BASE_ADDRESS_2);
if (res == NULL) {
printk(BIOS_DEBUG, "gma: memory resource not found.\n");
return;
}
res->flags |= IORESOURCE_RESERVE | IORESOURCE_FIXED | IORESOURCE_ASSIGNED;
pci_write_config32(dev, PCI_BASE_ADDRESS_2, 0xd0000001);
pci_write_config32(dev, PCI_BASE_ADDRESS_2 + 4, 0);
res->base = (resource_t) 0xd0000000;
res->size = (resource_t) 0x10000000;
}
static void gma_generate_ssdt(const struct device *device)
{
const struct northbridge_intel_ironlake_config *chip = device->chip_info;
drivers_intel_gma_displays_ssdt_generate(&chip->gfx);
}
static struct device_operations gma_func0_ops = {
.read_resources = gma_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.acpi_fill_ssdt = gma_generate_ssdt,
.init = gma_func0_init,
.ops_pci = &pci_dev_ops_pci,
};
static const unsigned short pci_device_ids[] = {
0x0046, 0x0102, 0x0106, 0x010a, 0x0112,
0x0116, 0x0122, 0x0126, 0x0156,
0x0166,
0
};
static const struct pci_driver gma __pci_driver = {
.ops = &gma_func0_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
};
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