diff options
Diffstat (limited to 'arch/x86/cpu/qemu/pci.c')
| -rw-r--r-- | arch/x86/cpu/qemu/pci.c | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/arch/x86/cpu/qemu/pci.c b/arch/x86/cpu/qemu/pci.c deleted file mode 100644 index 2e944569b5..0000000000 --- a/arch/x86/cpu/qemu/pci.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <pci.h> -#include <pci_rom.h> -#include <asm/pci.h> -#include <asm/arch/device.h> -#include <asm/arch/qemu.h> - -DECLARE_GLOBAL_DATA_PTR; - -static bool i440fx; - -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) -{ - int ret = 0; - u16 device, xbcs; - int pam, i; - pci_dev_t vga; - ulong start; - - /* - * i440FX and Q35 chipset have different PAM register offset, but with - * the same bitfield layout. Here we determine the offset based on its - * PCI device ID. - */ - device = x86_pci_read_config16(PCI_BDF(0, 0, 0), PCI_DEVICE_ID); - i440fx = (device == PCI_DEVICE_ID_INTEL_82441); - pam = i440fx ? I440FX_PAM : Q35_PAM; - - /* - * Initialize Programmable Attribute Map (PAM) Registers - * - * Configure legacy segments C/D/E/F to system RAM - */ - for (i = 0; i < PAM_NUM; i++) - x86_pci_write_config8(PCI_BDF(0, 0, 0), pam + i, PAM_RW); - - if (i440fx) { - /* - * Enable legacy IDE I/O ports decode - * - * Note: QEMU always decode legacy IDE I/O port on PIIX chipset. - * However Linux ata_piix driver does sanity check on these two - * registers to see whether legacy ports decode is turned on. - * This is to make Linux ata_piix driver happy. - */ - x86_pci_write_config16(PIIX_IDE, IDE0_TIM, IDE_DECODE_EN); - x86_pci_write_config16(PIIX_IDE, IDE1_TIM, IDE_DECODE_EN); - - /* Enable I/O APIC */ - xbcs = x86_pci_read_config16(PIIX_ISA, XBCS); - xbcs |= APIC_EN; - x86_pci_write_config16(PIIX_ISA, XBCS, xbcs); - } else { - /* Configure PCIe ECAM base address */ - x86_pci_write_config32(PCI_BDF(0, 0, 0), PCIEX_BAR, - CONFIG_PCIE_ECAM_BASE | BAR_EN); - } - - /* - * QEMU emulated graphic card shows in the PCI configuration space with - * PCI vendor id and device id as an artificial pair 0x1234:0x1111. - * It is on PCI bus 0, function 0, but device number is not consistent - * for the two x86 targets it supports. For i440FX and PIIX chipset - * board, it shows as device 2, while for Q35 and ICH9 chipset board, - * it shows as device 1. - */ - vga = i440fx ? I440FX_VGA : Q35_VGA; - start = get_timer(0); - ret = pci_run_vga_bios(vga, NULL, PCI_ROM_USE_NATIVE); - debug("BIOS ran in %lums\n", get_timer(start)); - - return ret; -} - -#ifdef CONFIG_GENERATE_MP_TABLE -int mp_determine_pci_dstirq(int bus, int dev, int func, int pirq) -{ - u8 irq; - - if (i440fx) { - /* - * Not like most x86 platforms, the PIRQ[A-D] on PIIX3 are not - * connected to I/O APIC INTPIN#16-19. Instead they are routed - * to an irq number controled by the PIRQ routing register. - */ - irq = x86_pci_read_config8(PCI_BDF(bus, dev, func), - PCI_INTERRUPT_LINE); - } else { - /* - * ICH9's PIRQ[A-H] are not consecutive numbers from 0 to 7. - * PIRQ[A-D] still maps to [0-3] but PIRQ[E-H] maps to [8-11]. - */ - irq = pirq < 8 ? pirq + 16 : pirq + 12; - } - - return irq; -} -#endif |