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| author | Bin Meng <bmeng.cn@gmail.com> | 2015-07-22 01:21:11 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-07-28 10:36:24 -0600 |
| commit | e7cd070da61c1dc096aa8cd45185f90f6508707b (patch) | |
| tree | 2a1df3a759246765b8e09363f3f5aa55b623e15d /arch/x86/include/asm | |
| parent | 53832bb8d62df6c369edf3fbb6c9dd4b5ed38710 (diff) | |
| download | u-boot-imx-e7cd070da61c1dc096aa8cd45185f90f6508707b.zip u-boot-imx-e7cd070da61c1dc096aa8cd45185f90f6508707b.tar.gz u-boot-imx-e7cd070da61c1dc096aa8cd45185f90f6508707b.tar.bz2 | |
x86: qemu: Enable I/O APIC chip select on PIIX3
The PIIX3 chipset does not integrate an I/O APIC, instead it supports
connecting to an external I/O APIC which needs to be enabled manually.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/arch-qemu/qemu.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/include/asm/arch-qemu/qemu.h b/arch/x86/include/asm/arch-qemu/qemu.h index 5cbffff..8c8e4ac 100644 --- a/arch/x86/include/asm/arch-qemu/qemu.h +++ b/arch/x86/include/asm/arch-qemu/qemu.h @@ -13,10 +13,14 @@ #define PAM_NUM 7 #define PAM_RW 0x33 +/* X-Bus Chip Select Register */ +#define XBCS 0x4e +#define APIC_EN (1 << 8) + /* IDE Timing Register */ #define IDE0_TIM 0x40 #define IDE1_TIM 0x42 -#define IDE_DECODE_EN 0x8000 +#define IDE_DECODE_EN (1 << 15) /* I/O Ports */ #define CMOS_ADDR_PORT 0x70 |