aboutsummaryrefslogtreecommitdiffstats
path: root/arch/mips/pci/pci-virtio-guest.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/pci/pci-virtio-guest.c')
-rw-r--r--arch/mips/pci/pci-virtio-guest.c131
1 files changed, 0 insertions, 131 deletions
diff --git a/arch/mips/pci/pci-virtio-guest.c b/arch/mips/pci/pci-virtio-guest.c
deleted file mode 100644
index 40a078bc4617..000000000000
--- a/arch/mips/pci/pci-virtio-guest.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2013 Cavium, Inc.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-
-#include <uapi/asm/bitfield.h>
-#include <asm/byteorder.h>
-#include <asm/io.h>
-
-#define PCI_CONFIG_ADDRESS 0xcf8
-#define PCI_CONFIG_DATA 0xcfc
-
-union pci_config_address {
- struct {
- __BITFIELD_FIELD(unsigned enable_bit : 1, /* 31 */
- __BITFIELD_FIELD(unsigned reserved : 7, /* 30 .. 24 */
- __BITFIELD_FIELD(unsigned bus_number : 8, /* 23 .. 16 */
- __BITFIELD_FIELD(unsigned devfn_number : 8, /* 15 .. 8 */
- __BITFIELD_FIELD(unsigned register_number : 8, /* 7 .. 0 */
- )))));
- };
- u32 w;
-};
-
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
- return 0;
-}
-
-int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
- return ((pin + slot) % 4)+ MIPS_IRQ_PCIA;
-}
-
-static void pci_virtio_guest_write_config_addr(struct pci_bus *bus,
- unsigned int devfn, int reg)
-{
- union pci_config_address pca = { .w = 0 };
-
- pca.register_number = reg;
- pca.devfn_number = devfn;
- pca.bus_number = bus->number;
- pca.enable_bit = 1;
-
- outl(pca.w, PCI_CONFIG_ADDRESS);
-}
-
-static int pci_virtio_guest_write_config(struct pci_bus *bus,
- unsigned int devfn, int reg, int size, u32 val)
-{
- pci_virtio_guest_write_config_addr(bus, devfn, reg);
-
- switch (size) {
- case 1:
- outb(val, PCI_CONFIG_DATA + (reg & 3));
- break;
- case 2:
- outw(val, PCI_CONFIG_DATA + (reg & 2));
- break;
- case 4:
- outl(val, PCI_CONFIG_DATA);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_virtio_guest_read_config(struct pci_bus *bus, unsigned int devfn,
- int reg, int size, u32 *val)
-{
- pci_virtio_guest_write_config_addr(bus, devfn, reg);
-
- switch (size) {
- case 1:
- *val = inb(PCI_CONFIG_DATA + (reg & 3));
- break;
- case 2:
- *val = inw(PCI_CONFIG_DATA + (reg & 2));
- break;
- case 4:
- *val = inl(PCI_CONFIG_DATA);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops pci_virtio_guest_ops = {
- .read = pci_virtio_guest_read_config,
- .write = pci_virtio_guest_write_config,
-};
-
-static struct resource pci_virtio_guest_mem_resource = {
- .name = "Virtio MEM",
- .flags = IORESOURCE_MEM,
- .start = 0x10000000,
- .end = 0x1dffffff
-};
-
-static struct resource pci_virtio_guest_io_resource = {
- .name = "Virtio IO",
- .flags = IORESOURCE_IO,
- .start = 0,
- .end = 0xffff
-};
-
-static struct pci_controller pci_virtio_guest_controller = {
- .pci_ops = &pci_virtio_guest_ops,
- .mem_resource = &pci_virtio_guest_mem_resource,
- .io_resource = &pci_virtio_guest_io_resource,
-};
-
-static int __init pci_virtio_guest_setup(void)
-{
- pr_err("pci_virtio_guest_setup\n");
-
- /* Virtio comes pre-assigned */
- pci_set_flags(PCI_PROBE_ONLY);
-
- pci_virtio_guest_controller.io_map_base = mips_io_port_base;
- register_pci_controller(&pci_virtio_guest_controller);
- return 0;
-}
-arch_initcall(pci_virtio_guest_setup);