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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/*
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* arch/mips/pci/pci-emma2rh.c
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* This file defines the PCI configration.
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*
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* Copyright (C) NEC Electronics Corporation 2004-2006
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*
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* This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c
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*
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* Copyright 2001 MontaVista Software Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <asm/bootinfo.h>
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#include <asm/debug.h>
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#include <asm/emma2rh/emma2rh.h>
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static struct resource pci_io_resource = {
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.name = "pci IO space",
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.start = EMMA2RH_PCI_IO_BASE,
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.end = EMMA2RH_PCI_IO_BASE + EMMA2RH_PCI_IO_SIZE - 1,
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.flags = IORESOURCE_IO,
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};
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static struct resource pci_mem_resource = {
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.name = "pci memory space",
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.start = EMMA2RH_PCI_MEM_BASE,
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.end = EMMA2RH_PCI_MEM_BASE + EMMA2RH_PCI_MEM_SIZE - 1,
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.flags = IORESOURCE_MEM,
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};
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extern struct pci_ops emma2rh_pci_ops;
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static struct pci_controller emma2rh_pci_controller = {
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.pci_ops = &emma2rh_pci_ops,
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.mem_resource = &pci_mem_resource,
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.io_resource = &pci_io_resource,
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.mem_offset = -0x04000000,
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.io_offset = 0,
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};
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static void __init emma2rh_pci_init(void)
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{
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/* setup PCI interface */
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emma2rh_out32(EMMA2RH_PCI_ARBIT_CTR, 0x70f);
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emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x80000a18);
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emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_COMMAND,
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PCI_STATUS_DEVSEL_MEDIUM | PCI_STATUS_CAP_LIST |
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PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
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emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_0, 0x10000000);
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emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_1, 0x00000000);
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emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x12000000 | 0x218);
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emma2rh_out32(EMMA2RH_PCI_IWIN1_CTR, 0x18000000 | 0x600);
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emma2rh_out32(EMMA2RH_PCI_INIT_ESWP, 0x00000200);
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emma2rh_out32(EMMA2RH_PCI_TWIN_CTR, 0x00009200);
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emma2rh_out32(EMMA2RH_PCI_TWIN_BADR, 0x00000000);
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emma2rh_out32(EMMA2RH_PCI_TWIN0_DADR, 0x00000000);
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emma2rh_out32(EMMA2RH_PCI_TWIN1_DADR, 0x00000000);
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}
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static int __init emma2rh_pci_setup(void)
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{
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emma2rh_pci_init();
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register_pci_controller(&emma2rh_pci_controller);
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return 0;
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}
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arch_initcall(emma2rh_pci_setup);
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