u-boot/arch/x86/include/asm/arch-qemu/qemu.h
Bin Meng 9830d2ebb4 x86: qemu: Turn on PCIe ECAM address range decoding on Q35
Turn on PCIe ECAM address range decoding on Q35.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-07-28 10:36:25 -06:00

36 lines
720 B
C

/*
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ARCH_QEMU_H_
#define _ARCH_QEMU_H_
/* Programmable Attribute Map (PAM) Registers */
#define I440FX_PAM 0x59
#define Q35_PAM 0x90
#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 (1 << 15)
/* PCIe ECAM Base Address Register */
#define PCIEX_BAR 0x60
#define BAR_EN (1 << 0)
/* I/O Ports */
#define CMOS_ADDR_PORT 0x70
#define CMOS_DATA_PORT 0x71
#define LOW_RAM_ADDR 0x34
#define HIGH_RAM_ADDR 0x35
#endif /* _ARCH_QEMU_H_ */