diff options
Diffstat (limited to 'src/device')
| -rw-r--r-- | src/device/Kconfig | 10 | ||||
| -rw-r--r-- | src/device/pci_device.c | 9 |
2 files changed, 19 insertions, 0 deletions
diff --git a/src/device/Kconfig b/src/device/Kconfig index 0e5de456ae..421ad66fea 100644 --- a/src/device/Kconfig +++ b/src/device/Kconfig @@ -117,6 +117,16 @@ config NO_GFX_INIT endchoice +config PRE_GRAPHICS_DELAY + int "Graphics initialization delay in ms" + default 0 + depends on VGA_ROM_RUN + help + On some systems, coreboot boots so fast that connected monitors + (mostly TVs) won't be able to wake up fast enough to talk to the + VBIOS. On those systems we need to wait for a bit before executing + the VBIOS. + config ONBOARD_VGA_IS_PRIMARY bool "Use onboard VGA as primary video device" default n diff --git a/src/device/pci_device.c b/src/device/pci_device.c index 66f5447126..cd98f07605 100644 --- a/src/device/pci_device.c +++ b/src/device/pci_device.c @@ -732,6 +732,12 @@ static int should_load_oprom(struct device *dev) return 0; } +static void oprom_pre_graphics_stall(void) +{ + if (CONFIG_PRE_GRAPHICS_DELAY) + mdelay(CONFIG_PRE_GRAPHICS_DELAY); +} + /** Default handler: only runs the relevant PCI BIOS. */ void pci_dev_init(struct device *dev) { @@ -760,6 +766,9 @@ void pci_dev_init(struct device *dev) if (!should_run_oprom(dev, rom)) return; + /* Wait for any configured pre-graphics delay */ + oprom_pre_graphics_stall(); + run_bios(dev, (unsigned long)ram); gfx_set_init_done(1); |