aboutsummaryrefslogtreecommitdiff
path: root/arch/ppc/platforms/apus_pci.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc/platforms/apus_pci.c')
-rw-r--r--arch/ppc/platforms/apus_pci.c207
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 dc165f0c890..00000000000
--- 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 */