diff options
Diffstat (limited to 'arch/ppc/platforms/apus_pci.c')
| -rw-r--r-- | arch/ppc/platforms/apus_pci.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/arch/ppc/platforms/apus_pci.c b/arch/ppc/platforms/apus_pci.c deleted file mode 100644 index dc165f0..0000000 --- a/arch/ppc/platforms/apus_pci.c +++ /dev/null @@ -1,207 +0,0 @@ -/* - * Copyright (C) Michel Dänzer <michdaen@iiic.ethz.ch> - * - * APUS PCI routines. - * - * Currently, only B/CVisionPPC cards (Permedia2) are supported. - * - * Thanks to Geert Uytterhoeven for the idea: - * Read values from given config space(s) for the first devices, -1 otherwise - * - */ - -#ifdef CONFIG_AMIGA - -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/string.h> -#include <linux/init.h> - -#include <asm/io.h> -#include <asm/pci-bridge.h> -#include <asm/machdep.h> - -#include "apus_pci.h" - - -/* These definitions are mostly adapted from pm2fb.c */ - -#undef APUS_PCI_MASTER_DEBUG -#ifdef APUS_PCI_MASTER_DEBUG -#define DPRINTK(a,b...) printk(KERN_DEBUG "apus_pci: %s: " a, __FUNCTION__ , ## b) -#else -#define DPRINTK(a,b...) -#endif - -/* - * The _DEFINITIVE_ memory mapping/unmapping functions. - * This is due to the fact that they're changing soooo often... - */ -#define DEFW() wmb() -#define DEFR() rmb() -#define DEFRW() mb() - -#define DEVNO(d) ((d)>>3) -#define FNNO(d) ((d)&7) - - -extern unsigned long powerup_PCI_present; - -static struct pci_controller *apus_hose; - - -void *pci_io_base(unsigned int bus) -{ - return 0; -} - - -int -apus_pcibios_read_config(struct pci_bus *bus, int devfn, int offset, - int len, u32 *val) -{ - int fnno = FNNO(devfn); - int devno = DEVNO(devfn); - volatile unsigned char *cfg_data; - - if (bus->number > 0 || devno != 1) { - *val = ~0; - return PCIBIOS_DEVICE_NOT_FOUND; - } - /* base address + function offset + offset ^ endianness conversion */ - /* XXX the fnno<<5 bit seems wacky -- paulus */ - cfg_data = apus_hose->cfg_data + (fnno<<5) + (offset ^ (len - 1)); - switch (len) { - case 1: - *val = readb(cfg_data); - break; - case 2: - *val = readw(cfg_data); - break; - default: - *val = readl(cfg_data); - break; - } - - DPRINTK("read b: 0x%x, d: 0x%x, f: 0x%x, o: 0x%x, l: %d, v: 0x%x\n", - bus->number, devfn>>3, devfn&7, offset, len, *val); - return PCIBIOS_SUCCESSFUL; -} - -int -apus_pcibios_write_config(struct pci_bus *bus, int devfn, int offset, - int len, u32 *val) -{ - int fnno = FNNO(devfn); - int devno = DEVNO(devfn); - volatile unsigned char *cfg_data; - - if (bus->number > 0 || devno != 1) { - return PCIBIOS_DEVICE_NOT_FOUND; - } - /* base address + function offset + offset ^ endianness conversion */ - /* XXX the fnno<<5 bit seems wacky -- paulus */ - cfg_data = apus_hose->cfg_data + (fnno<<5) + (offset ^ (len - 1)); - switch (len) { - case 1: - writeb(val, cfg_data); DEFW(); - break; - case 2: - writew(val, cfg_data); DEFW(); - break; - default: - writel(val, cfg_data); DEFW(); - break; - } - - DPRINTK("write b: 0x%x, d: 0x%x, f: 0x%x, o: 0x%x, l: %d, v: 0x%x\n", - bus->number, devfn>>3, devfn&7, offset, len, val); - return PCIBIOS_SUCCESSFUL; -} - -static struct pci_ops apus_pci_ops = { - apus_pcibios_read_config, - apus_pcibios_write_config -}; - -static struct resource pci_mem = { "B/CVisionPPC PCI mem", CVPPC_FB_APERTURE_ONE, CVPPC_PCI_CONFIG, IORESOURCE_MEM }; - -void __init -apus_pcibios_fixup(void) -{ -/* struct pci_dev *dev = pci_find_slot(0, 1<<3); - unsigned int reg, val, offset;*/ - - /* FIXME: interrupt? */ - /*dev->interrupt = xxx;*/ - - request_resource(&iomem_resource, &pci_mem); - printk("%s: PCI mem resource requested\n", __FUNCTION__); -} - -static void __init apus_pcibios_fixup_bus(struct pci_bus *bus) -{ - bus->resource[1] = &pci_mem; -} - - -/* - * This is from pm2fb.c again - * - * Check if PCI (B/CVisionPPC) is available, initialize it and set up - * the pcibios_* pointers - */ - - -void __init -apus_setup_pci_ptrs(void) -{ - if (!powerup_PCI_present) { - DPRINTK("no PCI bridge detected\n"); - return; - } - DPRINTK("Phase5 B/CVisionPPC PCI bridge detected.\n"); - - apus_hose = pcibios_alloc_controller(); - if (!apus_hose) { - printk("apus_pci: Can't allocate PCI controller structure\n"); - return; - } - - if (!(apus_hose->cfg_data = ioremap(CVPPC_PCI_CONFIG, 256))) { - printk("apus_pci: unable to map PCI config region\n"); - return; - } - - if (!(apus_hose->cfg_addr = ioremap(CSPPC_PCI_BRIDGE, 256))) { - printk("apus_pci: unable to map PCI bridge\n"); - return; - } - - writel(CSPPCF_BRIDGE_BIG_ENDIAN, apus_hose->cfg_addr + CSPPC_BRIDGE_ENDIAN); - DEFW(); - - writel(CVPPC_REGS_REGION, apus_hose->cfg_data+ PCI_BASE_ADDRESS_0); - DEFW(); - writel(CVPPC_FB_APERTURE_ONE, apus_hose->cfg_data + PCI_BASE_ADDRESS_1); - DEFW(); - writel(CVPPC_FB_APERTURE_TWO, apus_hose->cfg_data + PCI_BASE_ADDRESS_2); - DEFW(); - writel(CVPPC_ROM_ADDRESS, apus_hose->cfg_data + PCI_ROM_ADDRESS); - DEFW(); - - writel(0xef000000 | PCI_COMMAND_IO | PCI_COMMAND_MEMORY | - PCI_COMMAND_MASTER, apus_hose->cfg_data + PCI_COMMAND); - DEFW(); - - apus_hose->first_busno = 0; - apus_hose->last_busno = 0; - apus_hose->ops = &apus_pci_ops; - ppc_md.pcibios_fixup = apus_pcibios_fixup; - ppc_md.pcibios_fixup_bus = apus_pcibios_fixup_bus; - - return; -} - -#endif /* CONFIG_AMIGA */ |