From a65b25d148fb0a9ef7dd5fba4ae2709f5bcae0c6 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Thu, 7 May 2015 21:34:08 +0800 Subject: x86: Support QEMU x86 targets This commit introduces the initial U-Boot support for QEMU x86 targets. U-Boot can boot from coreboot as a payload, or directly without coreboot. Signed-off-by: Bin Meng Acked-by: Simon Glass Tested-by: Simon Glass Merged in patch 'x86: qemu: Add CMD_NET to qemu-x86_defconfig https://patchwork.ozlabs.org/patch/479745/ --- arch/x86/cpu/qemu/pci.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 arch/x86/cpu/qemu/pci.c (limited to 'arch/x86/cpu/qemu/pci.c') diff --git a/arch/x86/cpu/qemu/pci.c b/arch/x86/cpu/qemu/pci.c new file mode 100644 index 0000000000..d50ab752d3 --- /dev/null +++ b/arch/x86/cpu/qemu/pci.c @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2015, Bin Meng + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +void board_pci_setup_hose(struct pci_controller *hose) +{ + hose->first_busno = 0; + hose->last_busno = 0; + + /* PCI memory space */ + pci_set_region(hose->regions + 0, + CONFIG_PCI_MEM_BUS, + CONFIG_PCI_MEM_PHYS, + CONFIG_PCI_MEM_SIZE, + PCI_REGION_MEM); + + /* PCI IO space */ + pci_set_region(hose->regions + 1, + CONFIG_PCI_IO_BUS, + CONFIG_PCI_IO_PHYS, + CONFIG_PCI_IO_SIZE, + PCI_REGION_IO); + + pci_set_region(hose->regions + 2, + CONFIG_PCI_PREF_BUS, + CONFIG_PCI_PREF_PHYS, + CONFIG_PCI_PREF_SIZE, + PCI_REGION_PREFETCH); + + pci_set_region(hose->regions + 3, + 0, + 0, + gd->ram_size, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + hose->region_count = 4; +} + +int board_pci_post_scan(struct pci_controller *hose) +{ + return 0; +} -- cgit v1.2.1