/* * (C) Copyright 2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <config.h> #include <common.h> #include <asm/io.h> #include <pci.h> #include "hardware.h" #include "pcippc2.h" struct pci_controller local_hose, cpci_hose; static u32 cpc710_mapped_ram; /* Enable PCI retry timeouts */ void cpc710_pci_enable_timeout (void) { out32(BRIDGE(LOCAL, CFGADDR), 0x50000080); iobarrier_rw(); out32(BRIDGE(LOCAL, CFGDATA), 0x32000000); iobarrier_rw(); out32(BRIDGE(CPCI, CFGADDR), 0x50000180); iobarrier_rw(); out32(BRIDGE(CPCI, CFGDATA), 0x32000000); iobarrier_rw(); } void cpc710_pci_init (void) { u32 sdram_size = pcippc2_sdram_size(); cpc710_mapped_ram = sdram_size < PCI_MEMORY_MAXSIZE ? sdram_size : PCI_MEMORY_MAXSIZE; /* Select the local PCI */ out32(REG(CPC0, PCICNFR), 0x80000002); iobarrier_rw(); out32(REG(CPC0, PCIBAR), BRIDGE_LOCAL_PHYS); iobarrier_rw(); /* Enable PCI bridge address decoding */ out32(REG(CPC0, PCIENB), 0x80000000); iobarrier_rw(); /* Select the CPCI bridge */ out32(REG(CPC0, PCICNFR), 0x80000003); iobarrier_rw(); out32(REG(CPC0, PCIBAR), BRIDGE_CPCI_PHYS); iobarrier_rw(); /* Enable PCI bridge address decoding */ out32(REG(CPC0, PCIENB), 0x80000000); iobarrier_rw(); /* Disable configuration accesses */ out32(REG(CPC0, PCICNFR), 0x80000000); iobarrier_rw(); /* Initialise the local PCI */ out32(BRIDGE(LOCAL, CRR), 0x7c000000); iobarrier_rw(); out32(BRIDGE(LOCAL, PCIDG), 0x40000000); iobarrier_rw(); out32(BRIDGE(LOCAL, PIBAR), BRIDGE_LOCAL_IO_BUS); out32(BRIDGE(LOCAL, SIBAR), BRIDGE_LOCAL_IO_PHYS); out32(BRIDGE(LOCAL, IOSIZE), -BRIDGE_LOCAL_IO_SIZE); iobarrier_rw(); out32(BRIDGE(LOCAL, PMBAR), BRIDGE_LOCAL_MEM_BUS); out32(BRIDGE(LOCAL, SMBAR), BRIDGE_LOCAL_MEM_PHYS); out32(BRIDGE(LOCAL, MSIZE), -BRIDGE_LOCAL_MEM_SIZE); iobarrier_rw(); out32(BRIDGE(LOCAL, PR), 0x00ffe000); iobarrier_rw(); out32(BRIDGE(LOCAL, ACR), 0xfe000000); iobarrier_rw(); out32(BRIDGE(LOCAL, PSBAR), PCI_MEMORY_BUS >> 24); out32(BRIDGE(LOCAL, BARPS), PCI_MEMORY_PHYS >> 24); out32(BRIDGE(LOCAL, PSSIZE), 256 - (cpc710_mapped_ram >> 24)); iobarrier_rw(); /* Initialise the CPCI bridge */ out32(BRIDGE(CPCI, CRR), 0x7c000000); iobarrier_rw(); out32(BRIDGE(CPCI, PCIDG), 0xC0000000); iobarrier_rw(); out32(BRIDGE(CPCI, PIBAR), BRIDGE_CPCI_IO_BUS); out32(BRIDGE(CPCI, SIBAR), BRIDGE_CPCI_IO_PHYS); out32(BRIDGE(CPCI, IOSIZE), -BRIDGE_CPCI_IO_SIZE); iobarrier_rw(); out32(BRIDGE(CPCI, PMBAR), BRIDGE_CPCI_MEM_BUS); out32(BRIDGE(CPCI, SMBAR), BRIDGE_CPCI_MEM_PHYS); out32(BRIDGE(CPCI, MSIZE), -BRIDGE_CPCI_MEM_SIZE); iobarrier_rw(); out32(BRIDGE(CPCI, PR), 0x80ffe000); iobarrier_rw(); out32(BRIDGE(CPCI, ACR), 0xdf000000); iobarrier_rw(); out32(BRIDGE(CPCI, PSBAR), PCI_MEMORY_BUS >> 24); out32(BRIDGE(CPCI, BARPS), PCI_MEMORY_PHYS >> 24); out32(BRIDGE(CPCI, PSSIZE), 256 - (cpc710_mapped_ram >> 24)); iobarrier_rw(); /* Local PCI */ out32(BRIDGE(LOCAL, CFGADDR), 0x04000080); iobarrier_rw(); out32(BRIDGE(LOCAL, CFGDATA), 0x56010000); iobarrier_rw(); out32(BRIDGE(LOCAL, CFGADDR), 0x0c000080); iobarrier_rw(); out32(BRIDGE(LOCAL, CFGDATA), PCI_LATENCY_TIMER_VAL << 16); iobarrier_rw(); /* Set bus and subbus numbers */ out32(BRIDGE(LOCAL, CFGADDR), 0x40000080); iobarrier_rw(); out32(BRIDGE(LOCAL, CFGDATA), 0x00000000); iobarrier_rw(); out32(BRIDGE(LOCAL, CFGADDR), 0x50000080); iobarrier_rw(); /* PCI retry timeouts will be enabled later */ out32(BRIDGE(LOCAL, CFGDATA), 0x00000000); iobarrier_rw(); /* CPCI */ /* Set bus and subbus numbers */ out32(BRIDGE(CPCI, CFGADDR), 0x40000080); iobarrier_rw(); out32(BRIDGE(CPCI, CFGDATA), 0x01010000); iobarrier_rw(); out32(BRIDGE(CPCI, CFGADDR), 0x04000180); iobarrier_rw(); out32(BRIDGE(CPCI, CFGDATA), 0x56010000); iobarrier_rw(); out32(BRIDGE(CPCI, CFGADDR), 0x0c000180); iobarrier_rw(); out32(BRIDGE(CPCI, CFGDATA), PCI_LATENCY_TIMER_VAL << 16); iobarrier_rw(); /* Write to the PSBAR */ out32(BRIDGE(CPCI, CFGADDR), 0x10000180); iobarrier_rw(); out32(BRIDGE(CPCI, CFGDATA), cpu_to_le32(PCI_MEMORY_BUS)); iobarrier_rw(); /* Set bus and subbus numbers */ out32(BRIDGE(CPCI, CFGADDR), 0x40000180); iobarrier_rw(); out32(BRIDGE(CPCI, CFGDATA), 0x01ff0000); iobarrier_rw(); out32(BRIDGE(CPCI, CFGADDR), 0x50000180); iobarrier_rw(); out32(BRIDGE(CPCI, CFGDATA), 0x32000000); /* PCI retry timeouts will be enabled later */ out32(BRIDGE(CPCI, CFGDATA), 0x00000000); iobarrier_rw(); /* Remove reset on the PCI buses */ out32(BRIDGE(LOCAL, CRR), 0xfc000000); iobarrier_rw(); out32(BRIDGE(CPCI, CRR), 0xfc000000); iobarrier_rw(); local_hose.first_busno = 0; local_hose.last_busno = 0xff; /* System memory space */ pci_set_region(local_hose.regions + 0, PCI_MEMORY_BUS, PCI_MEMORY_PHYS, PCI_MEMORY_MAXSIZE, PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); /* PCI memory space */ pci_set_region(local_hose.regions + 1, BRIDGE_LOCAL_MEM_BUS, BRIDGE_LOCAL_MEM_PHYS, BRIDGE_LOCAL_MEM_SIZE, PCI_REGION_MEM); /* PCI I/O space */ pci_set_region(local_hose.regions + 2, BRIDGE_LOCAL_IO_BUS, BRIDGE_LOCAL_IO_PHYS, BRIDGE_LOCAL_IO_SIZE, PCI_REGION_IO); local_hose.region_count = 3; pci_setup_indirect(&local_hose, BRIDGE_LOCAL_PHYS + HW_BRIDGE_CFGADDR, BRIDGE_LOCAL_PHYS + HW_BRIDGE_CFGDATA); pci_register_hose(&local_hose); /* Initialize PCI32 bus registers */ pci_hose_write_config_byte(&local_hose, PCI_BDF(local_hose.first_busno,0,0), CPC710_BUS_NUMBER, local_hose.first_busno); pci_hose_write_config_byte(&local_hose, PCI_BDF(local_hose.first_busno,0,0), CPC710_SUB_BUS_NUMBER, local_hose.last_busno); local_hose.last_busno = pci_hose_scan(&local_hose); /* Write out correct max subordinate bus number for local hose */ pci_hose_write_config_byte(&local_hose, PCI_BDF(local_hose.first_busno,0,0), CPC710_SUB_BUS_NUMBER, local_hose.last_busno); cpci_hose.first_busno = local_hose.last_busno + 1; cpci_hose.last_busno = 0xff; /* System memory space */ pci_set_region(cpci_hose.regions + 0, PCI_MEMORY_BUS, PCI_MEMORY_PHYS, PCI_MEMORY_MAXSIZE, PCI_REGION_SYS_MEMORY); /* PCI memory space */ pci_set_region(cpci_hose.regions + 1, BRIDGE_CPCI_MEM_BUS, BRIDGE_CPCI_MEM_PHYS, BRIDGE_CPCI_MEM_SIZE, PCI_REGION_MEM); /* PCI I/O space */ pci_set_region(cpci_hose.regions + 2, BRIDGE_CPCI_IO_BUS, BRIDGE_CPCI_IO_PHYS, BRIDGE_CPCI_IO_SIZE, PCI_REGION_IO); cpci_hose.region_count = 3; pci_setup_indirect(&cpci_hose, BRIDGE_CPCI_PHYS + HW_BRIDGE_CFGADDR, BRIDGE_CPCI_PHYS + HW_BRIDGE_CFGDATA); pci_register_hose(&cpci_hose); /* Initialize PCI64 bus registers */ pci_hose_write_config_byte(&cpci_hose, PCI_BDF(cpci_hose.first_busno,0,0), CPC710_BUS_NUMBER, cpci_hose.first_busno); pci_hose_write_config_byte(&cpci_hose, PCI_BDF(cpci_hose.first_busno,0,0), CPC710_SUB_BUS_NUMBER, cpci_hose.last_busno); cpci_hose.last_busno = pci_hose_scan(&cpci_hose); /* Write out correct max subordinate bus number for cpci hose */ pci_hose_write_config_byte(&cpci_hose, PCI_BDF(cpci_hose.first_busno,0,0), CPC710_SUB_BUS_NUMBER, cpci_hose.last_busno); }