On Fri, Oct 23, 2015 at 9:39 AM, Bin Meng <bmeng...@gmail.com> wrote:
> Previously when I started to look at the graphics support on Intel
> Crown Bay, I tried to debug IGD and off-chip graphics card but none
> of their vgabios can run under U-Boot. Later with a bug fixed in the
> 16-bit real mode and 32-bit protected mode switch, IGD vgabios can
> run successfully but these two PCIe graphics cards I have at hand
> still don't work.
>
> With recent bug fixes as an attempt to support SeaBIOS, I started to
> look at them again, and this time finally got both of them work.
> It turns out we need completely disable IGD on TunnelCreek chipset,
> and also get i8254 timer counter 1 set up corretly.
>
> This series also fixes several nits in the i8259/i8254 codes.
>
> In case someone is interested, the two PCIe graphics card I used for
> testing are:
>
Looks git has eliminated my commit message somehow ..
Here they are:
#1: XGI Technology Inc., vendor ID 0x18ca, device ID 0x0027
#2: Matrox Electronics Systems Ltd., vendor ID 0x102b, device ID 0x2527
>
>
> Bin Meng (8):
> x86: Rename CONFIG_SYS_NUM_IRQS to SYS_NUM_IRQS
> x86: Remove dead codes wrapped by PARANOID_IRQ_TRIGGERS
> x86: Fix cosmetic issues in the i8254 and i8259 codes
> x86: Initialize i8254 timer counter 1
> x86: Rename pcat_ to i8254 and i8259 accordingly
> x86: Move CONFIG_8259_PIC and CONFIG_8254_TIMER to Kconfig
> x86: queensbay: Really disable IGD
> x86: Move timer_init() call a bit earlier
>
> arch/x86/Kconfig | 8 +++++
> arch/x86/cpu/interrupts.c | 2 +-
> arch/x86/cpu/queensbay/tnc.c | 26 ++++++++++++----
> arch/x86/include/asm/arch-queensbay/tnc.h | 7 ++---
> arch/x86/include/asm/i8254.h | 43 ++++++++++++--------------
> arch/x86/include/asm/i8259.h | 31 ++++++++++---------
> arch/x86/include/asm/interrupt.h | 2 ++
> arch/x86/include/asm/u-boot-x86.h | 2 +-
> arch/x86/lib/Makefile | 4 +--
> arch/x86/lib/i8254.c | 37 +++++++++++++++++++++++
> arch/x86/lib/{pcat_interrupts.c => i8259.c} | 47
> ++++++++---------------------
> arch/x86/lib/interrupts.c | 10 +++---
> arch/x86/lib/pcat_timer.c | 27 -----------------
> arch/x86/lib/tsc_timer.c | 6 ++--
> common/board_f.c | 2 +-
> common/board_r.c | 3 +-
> include/configs/x86-common.h | 3 --
> 17 files changed, 134 insertions(+), 126 deletions(-)
> create mode 100644 arch/x86/lib/i8254.c
> rename arch/x86/lib/{pcat_interrupts.c => i8259.c} (70%)
> delete mode 100644 arch/x86/lib/pcat_timer.c
>
> --
Regards,
Bin
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