diff options
Diffstat (limited to 'arch/ppc/syslib/ppc405_pci.c')
| -rw-r--r-- | arch/ppc/syslib/ppc405_pci.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/arch/ppc/syslib/ppc405_pci.c b/arch/ppc/syslib/ppc405_pci.c deleted file mode 100644 index 9e90356..0000000 --- a/arch/ppc/syslib/ppc405_pci.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * Authors: Frank Rowand <frank_rowand@mvista.com>, - * Debbie Chu <debbie_chu@mvista.com>, or source@mvista.com - * Further modifications by Armin Kuster <akuster@mvista.com> - * - * 2000 (c) MontaVista, Software, Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. - * - * Based on arch/ppc/kernel/indirect.c, Copyright (C) 1998 Gabriel Paubert. - */ - -#include <linux/pci.h> -#include <asm/io.h> -#include <asm/system.h> -#include <asm/machdep.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <asm/ocp.h> -#include <asm/ibm4xx.h> -#include <asm/pci-bridge.h> -#include <asm/ibm_ocp_pci.h> - - -extern void bios_fixup(struct pci_controller *, struct pcil0_regs *); -extern int ppc405_map_irq(struct pci_dev *dev, unsigned char idsel, - unsigned char pin); - -void -ppc405_pcibios_fixup_resources(struct pci_dev *dev) -{ - int i; - unsigned long max_host_addr; - unsigned long min_host_addr; - struct resource *res; - - /* - * openbios puts some graphics cards in the same range as the host - * controller uses to map to SDRAM. Fix it. - */ - - min_host_addr = 0; - max_host_addr = PPC405_PCI_MEM_BASE - 1; - - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - res = dev->resource + i; - if (!res->start) - continue; - if ((res->flags & IORESOURCE_MEM) && - (((res->start >= min_host_addr) - && (res->start <= max_host_addr)) - || ((res->end >= min_host_addr) - && (res->end <= max_host_addr)) - || ((res->start < min_host_addr) - && (res->end > max_host_addr)) - ) - ) { - - /* force pcibios_assign_resources() to assign a new address */ - res->end -= res->start; - res->start = 0; - } - } -} - -static int -ppc4xx_exclude_device(unsigned char bus, unsigned char devfn) -{ - /* We prevent us from seeing ourselves to avoid having - * the kernel try to remap our BAR #1 and fuck up bus - * master from external PCI devices - */ - return (bus == 0 && devfn == 0); -} - -void -ppc4xx_find_bridges(void) -{ - struct pci_controller *hose_a; - struct pcil0_regs *pcip; - unsigned int tmp_addr; - unsigned int tmp_size; - unsigned int reg_index; - unsigned int new_pmm_max = 0; - unsigned int new_pmm_min = 0; - - isa_io_base = 0; - isa_mem_base = 0; - pci_dram_offset = 0; - - /* Setup PCI32 hose */ - hose_a = pcibios_alloc_controller(); - if (!hose_a) - return; - setup_indirect_pci(hose_a, PPC405_PCI_CONFIG_ADDR, - PPC405_PCI_CONFIG_DATA); - - pcip = ioremap(PPC4xx_PCI_LCFG_PADDR, PAGE_SIZE); - if (pcip != NULL) { - -#if defined(CONFIG_BIOS_FIXUP) - bios_fixup(hose_a, pcip); -#endif - new_pmm_min = 0xffffffff; - for (reg_index = 0; reg_index < 3; reg_index++) { - tmp_size = in_le32(&pcip->pmm[reg_index].ma); // mask & attrs - /* test the enable bit */ - if ((tmp_size & 0x1) == 0) - continue; - tmp_addr = in_le32(&pcip->pmm[reg_index].pcila); // PCI addr - if (tmp_addr < PPC405_PCI_PHY_MEM_BASE) { - printk(KERN_DEBUG - "Disabling mapping to PCI mem addr 0x%8.8x\n", - tmp_addr); - out_le32(&pcip->pmm[reg_index].ma, tmp_size & ~1); // *_PMMOMA - continue; - } - tmp_addr = in_le32(&pcip->pmm[reg_index].la); // *_PMMOLA - if (tmp_addr < new_pmm_min) - new_pmm_min = tmp_addr; - tmp_addr = tmp_addr + - (0xffffffff - (tmp_size & 0xffffc000)); - if (tmp_addr > PPC405_PCI_UPPER_MEM) { - new_pmm_max = tmp_addr; // PPC405_PCI_UPPER_MEM - } else { - new_pmm_max = PPC405_PCI_UPPER_MEM; - } - - } // for - - iounmap(pcip); - } - - hose_a->first_busno = 0; - hose_a->last_busno = 0xff; - hose_a->pci_mem_offset = 0; - - /* Setup bridge memory/IO ranges & resources - * TODO: Handle firmware setting up a legacy ISA mem base - */ - hose_a->io_space.start = PPC405_PCI_LOWER_IO; - hose_a->io_space.end = PPC405_PCI_UPPER_IO; - hose_a->mem_space.start = new_pmm_min; - hose_a->mem_space.end = new_pmm_max; - hose_a->io_base_phys = PPC405_PCI_PHY_IO_BASE; - hose_a->io_base_virt = ioremap(hose_a->io_base_phys, 0x10000); - hose_a->io_resource.start = 0; - hose_a->io_resource.end = PPC405_PCI_UPPER_IO - PPC405_PCI_LOWER_IO; - hose_a->io_resource.flags = IORESOURCE_IO; - hose_a->io_resource.name = "PCI I/O"; - hose_a->mem_resources[0].start = new_pmm_min; - hose_a->mem_resources[0].end = new_pmm_max; - hose_a->mem_resources[0].flags = IORESOURCE_MEM; - hose_a->mem_resources[0].name = "PCI Memory"; - isa_io_base = (int) hose_a->io_base_virt; - isa_mem_base = 0; /* ISA not implemented */ - ISA_DMA_THRESHOLD = 0x00ffffff; /* ??? ISA not implemented */ - - /* Scan busses & initial setup by pci_auto */ - hose_a->last_busno = pciauto_bus_scan(hose_a, hose_a->first_busno); - hose_a->last_busno = 0; - - /* Setup ppc_md */ - ppc_md.pcibios_fixup = NULL; - ppc_md.pci_exclude_device = ppc4xx_exclude_device; - ppc_md.pcibios_fixup_resources = ppc405_pcibios_fixup_resources; - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = ppc405_map_irq; -} |
