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path: root/arch/sh/drivers/pci/pci-lib.c
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Diffstat (limited to 'arch/sh/drivers/pci/pci-lib.c')
-rw-r--r--arch/sh/drivers/pci/pci-lib.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/arch/sh/drivers/pci/pci-lib.c b/arch/sh/drivers/pci/pci-lib.c
deleted file mode 100644
index f072acafce6..00000000000
--- a/arch/sh/drivers/pci/pci-lib.c
+++ /dev/null
@@ -1,219 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-
-unsigned long PCIBIOS_MIN_IO = 0x0000;
-unsigned long PCIBIOS_MIN_MEM = 0;
-
-/*
- * We need to avoid collisions with `mirrored' VGA ports
- * and other strange ISA hardware, so we always want the
- * addresses to be allocated in the 0x000-0x0ff region
- * modulo 0x400.
- */
-void pcibios_align_resource(void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- struct pci_dev *dev = data;
- struct pci_channel *chan = dev->sysdata;
- resource_size_t start = res->start;
-
- if (res->flags & IORESOURCE_IO) {
- if (start < PCIBIOS_MIN_IO + chan->io_resource->start)
- start = PCIBIOS_MIN_IO + chan->io_resource->start;
-
- /*
- * Put everything into 0x00-0xff region modulo 0x400.
- */
- if (start & 0x300) {
- start = (start + 0x3ff) & ~0x3ff;
- res->start = start;
- }
- } else if (res->flags & IORESOURCE_MEM) {
- if (start < PCIBIOS_MIN_MEM + chan->mem_resource->start)
- start = PCIBIOS_MIN_MEM + chan->mem_resource->start;
- }
-
- res->start = start;
-}
-
-void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
- struct resource *res)
-{
- struct pci_channel *hose = dev->sysdata;
- unsigned long offset = 0;
-
- if (res->flags & IORESOURCE_IO)
- offset = hose->io_offset;
- else if (res->flags & IORESOURCE_MEM)
- offset = hose->mem_offset;
-
- region->start = res->start - offset;
- region->end = res->end - offset;
-}
-
-void __devinit
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
- struct pci_bus_region *region)
-{
- struct pci_channel *hose = dev->sysdata;
- unsigned long offset = 0;
-
- if (res->flags & IORESOURCE_IO)
- offset = hose->io_offset;
- else if (res->flags & IORESOURCE_MEM)
- offset = hose->mem_offset;
-
- res->start = region->start + offset;
- res->end = region->end + offset;
-}
-
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
- u16 cmd, old_cmd;
- int idx;
- struct resource *r;
-
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- old_cmd = cmd;
- for (idx=0; idx < PCI_NUM_RESOURCES; idx++) {
- /* Only set up the requested stuff */
- if (!(mask & (1<<idx)))
- continue;
-
- r = &dev->resource[idx];
- if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM)))
- continue;
- if ((idx == PCI_ROM_RESOURCE) &&
- (!(r->flags & IORESOURCE_ROM_ENABLE)))
- continue;
- if (!r->start && r->end) {
- printk(KERN_ERR "PCI: Device %s not available "
- "because of resource collisions\n",
- pci_name(dev));
- return -EINVAL;
- }
- if (r->flags & IORESOURCE_IO)
- cmd |= PCI_COMMAND_IO;
- if (r->flags & IORESOURCE_MEM)
- cmd |= PCI_COMMAND_MEMORY;
- }
- if (cmd != old_cmd) {
- printk("PCI: Enabling device %s (%04x -> %04x)\n",
- pci_name(dev), old_cmd, cmd);
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- }
- return 0;
-}
-
-/*
- * If we set up a device for bus mastering, we need to check and set
- * the latency timer as it may not be properly set.
- */
-static unsigned int pcibios_max_latency = 255;
-
-void pcibios_set_master(struct pci_dev *dev)
-{
- u8 lat;
- pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
- if (lat < 16)
- lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
- else if (lat > pcibios_max_latency)
- lat = pcibios_max_latency;
- else
- return;
- printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n",
- pci_name(dev), lat);
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
-}
-
-void __init pcibios_update_irq(struct pci_dev *dev, int irq)
-{
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
-}
-
-char * __devinit pcibios_setup(char *str)
-{
- return str;
-}
-
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
- enum pci_mmap_state mmap_state, int write_combine)
-{
- /*
- * I/O space can be accessed via normal processor loads and stores on
- * this platform but for now we elect not to do this and portable
- * drivers should not do this anyway.
- */
- if (mmap_state == pci_mmap_io)
- return -EINVAL;
-
- /*
- * Ignore write-combine; for now only return uncached mappings.
- */
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-
- return remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot);
-}
-
-static void __iomem *ioport_map_pci(struct pci_dev *dev,
- unsigned long port, unsigned int nr)
-{
- struct pci_channel *chan = dev->sysdata;
-
- if (!chan->io_map_base)
- chan->io_map_base = generic_io_base;
-
- return (void __iomem *)(chan->io_map_base + port);
-}
-
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
- resource_size_t start = pci_resource_start(dev, bar);
- resource_size_t len = pci_resource_len(dev, bar);
- unsigned long flags = pci_resource_flags(dev, bar);
-
- if (unlikely(!len || !start))
- return NULL;
- if (maxlen && len > maxlen)
- len = maxlen;
-
- if (flags & IORESOURCE_IO)
- return ioport_map_pci(dev, start, len);
-
- /*
- * Presently the IORESOURCE_MEM case is a bit special, most
- * SH7751 style PCI controllers have PCI memory at a fixed
- * location in the address space where no remapping is desired.
- * With the IORESOURCE_MEM case more care has to be taken
- * to inhibit page table mapping for legacy cores, but this is
- * punted off to __ioremap().
- * -- PFM.
- */
- if (flags & IORESOURCE_MEM) {
- if (flags & IORESOURCE_CACHEABLE)
- return ioremap(start, len);
-
- return ioremap_nocache(start, len);
- }
-
- return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
-void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
-{
- iounmap(addr);
-}
-EXPORT_SYMBOL(pci_iounmap);
-
-#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-EXPORT_SYMBOL(PCIBIOS_MIN_IO);
-EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
-#endif
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