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| author | Simon Glass <sjg@chromium.org> | 2015-01-01 16:18:02 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-01-13 07:24:59 -0800 |
| commit | d19ee5c27ec0c144bae294b4317e03738616a593 (patch) | |
| tree | 83f825a6494455f6ff7f47ab8f4e0640530a5a4a | |
| parent | fba7eac1c84aa674696fea55ac3a37f1e7156181 (diff) | |
| download | u-boot-imx-d19ee5c27ec0c144bae294b4317e03738616a593.zip u-boot-imx-d19ee5c27ec0c144bae294b4317e03738616a593.tar.gz u-boot-imx-d19ee5c27ec0c144bae294b4317e03738616a593.tar.bz2 | |
x86: ivybridge: Only run the Video BIOS when video is enabled
This takes about about 700ms on link when running natively and 900ms when
running using the emulator. It is a waste of time if video is not enabled,
so don't bother running the video BIOS in that case.
We could add a command to run the video BIOS later when needed, but this is
not considered at present.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
| -rw-r--r-- | arch/x86/cpu/ivybridge/gma.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/cpu/ivybridge/gma.c b/arch/x86/cpu/ivybridge/gma.c index 3d7f740..cf4f87c 100644 --- a/arch/x86/cpu/ivybridge/gma.c +++ b/arch/x86/cpu/ivybridge/gma.c @@ -15,6 +15,7 @@ #include <asm/pci.h> #include <asm/arch/pch.h> #include <asm/arch/sandybridge.h> +#include <linux/kconfig.h> struct gt_powermeter { u16 reg; @@ -730,6 +731,9 @@ static int int15_handler(void) int gma_func0_init(pci_dev_t dev, struct pci_controller *hose, const void *blob, int node) { +#ifdef CONFIG_VIDEO + ulong start; +#endif void *gtt_bar; u32 reg32; int ret; @@ -745,8 +749,11 @@ int gma_func0_init(pci_dev_t dev, struct pci_controller *hose, if (ret) return ret; +#ifdef CONFIG_VIDEO + start = get_timer(0); ret = pci_run_vga_bios(dev, int15_handler, false); - + debug("BIOS ran in %lums\n", get_timer(start)); +#endif /* Post VBIOS init */ ret = gma_pm_init_post_vbios(gtt_bar, blob, node); if (ret) |