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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | /* * BRIEF MODULE DESCRIPTION * Board specific pci fixups. * * Copyright 2001-2003 MontaVista Software Inc. * Author: MontaVista Software, Inc. * ppopov@mvista.com or source@mvista.com * * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * 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., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/config.h> #include <linux/types.h> #include <linux/pci.h> #include <linux/kernel.h> #include <linux/init.h> #include <asm/au1000.h> //#include <asm/pb1500.h> #ifdef CONFIG_MIPS_PB1000 #include <asm/pb1000.h> #endif #undef DEBUG #ifdef DEBUG #define DBG(x...) printk(x) #else #define DBG(x...) #endif static void fixup_resource(int r_num, struct pci_dev *dev); #ifdef CONFIG_SOC_AU1500 static unsigned long virt_io_addr; #endif void __init pcibios_fixup_resources(struct pci_dev *dev) { /* will need to fixup IO resources */ } void __init pcibios_fixup(void) { #ifdef CONFIG_SOC_AU1500 int i; struct pci_dev *dev; virt_io_addr = (unsigned long) ioremap(Au1500_PCI_IO_START, Au1500_PCI_IO_END - Au1500_PCI_IO_START + 1); if (!virt_io_addr) { printk(KERN_ERR "Unable to ioremap pci space\n"); return; } set_io_port_base(virt_io_addr); #endif #ifdef CONFIG_MIPS_PB1000 /* This is truly board specific */ unsigned long pci_mem_start = (unsigned long) PCI_MEM_START; au_writel(0, PCI_BRIDGE_CONFIG); // set extend byte to 0 au_writel(0, SDRAM_MBAR); // set mbar to 0 au_writel(0x2, SDRAM_CMD); // enable memory accesses au_sync_delay(1); // set extend byte to mbar of ext slot au_writel(((pci_mem_start >> 24) & 0xff) | (1 << 8 | 1 << 9 | 1 << 10 | 1 << 27), PCI_BRIDGE_CONFIG); DBG("Set bridge config to %x\n", au_readl(PCI_BRIDGE_CONFIG)); #endif } void __init pcibios_fixup_irqs(void) { #ifdef CONFIG_SOC_AU1500 unsigned int slot, func; unsigned char pin; struct pci_dev *dev = NULL; while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { if (dev->bus->number != 0) return; dev->irq = 0xff; slot = PCI_SLOT(dev->devfn); switch (slot) { case 12: case 13: dev->irq = AU1000_PCI_INTA; break; } pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); DBG("slot %d irq %d\n", slot, dev->irq); } #endif } unsigned int pcibios_assign_all_busses(void) { return 0; } static void fixup_resource(int r_num, struct pci_dev *dev) { } |