82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/*
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* (C) Copyright 2002 ELTEC Elektronik AG
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* Frank Gottschling <fgottschling@eltec.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* PCI initialisation for the MPC10x.
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*/
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#include <common.h>
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#include <pci.h>
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#include <mpc106.h>
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#ifdef CONFIG_PCI
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struct pci_controller local_hose;
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void pci_init_board(void)
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{
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struct pci_controller* hose = (struct pci_controller *)&local_hose;
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u16 reg16;
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hose->first_busno = 0;
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hose->last_busno = 0xff;
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pci_set_region(hose->regions + 0,
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CONFIG_SYS_PCI_MEMORY_BUS,
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CONFIG_SYS_PCI_MEMORY_PHYS,
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CONFIG_SYS_PCI_MEMORY_SIZE,
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PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
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/* PCI memory space */
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pci_set_region(hose->regions + 1,
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CONFIG_SYS_PCI_MEM_BUS,
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CONFIG_SYS_PCI_MEM_PHYS,
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CONFIG_SYS_PCI_MEM_SIZE,
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PCI_REGION_MEM);
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/* ISA/PCI memory space */
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pci_set_region(hose->regions + 2,
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CONFIG_SYS_ISA_MEM_BUS,
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CONFIG_SYS_ISA_MEM_PHYS,
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CONFIG_SYS_ISA_MEM_SIZE,
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PCI_REGION_MEM);
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/* PCI I/O space */
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pci_set_region(hose->regions + 3,
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CONFIG_SYS_PCI_IO_BUS,
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CONFIG_SYS_PCI_IO_PHYS,
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CONFIG_SYS_PCI_IO_SIZE,
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PCI_REGION_IO);
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/* ISA/PCI I/O space */
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pci_set_region(hose->regions + 4,
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CONFIG_SYS_ISA_IO_BUS,
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CONFIG_SYS_ISA_IO_PHYS,
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CONFIG_SYS_ISA_IO_SIZE,
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PCI_REGION_IO);
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hose->region_count = 5;
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pci_setup_indirect(hose,
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MPC106_REG_ADDR,
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MPC106_REG_DATA);
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pci_register_hose(hose);
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hose->last_busno = pci_hose_scan(hose);
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/* Initialises the MPC10x PCI Configuration regs. */
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pci_read_config_word (PCI_BDF(0,0,0), PCI_COMMAND, ®16);
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reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
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pci_write_config_word(PCI_BDF(0,0,0), PCI_COMMAND, reg16);
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/* Clear non-reserved bits in status register */
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pci_write_config_word(PCI_BDF(0,0,0), PCI_STATUS, 0xffff);
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}
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#endif /* CONFIG_PCI */
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