diff options
Diffstat (limited to 'arch/mips/pci')
| -rw-r--r-- | arch/mips/pci/Makefile | 1 | ||||
| -rw-r--r-- | arch/mips/pci/pci-virtio-guest.c | 131 |
2 files changed, 0 insertions, 132 deletions
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile index 0f68d6849978..f3eecc065e5c 100644 --- a/arch/mips/pci/Makefile +++ b/arch/mips/pci/Makefile @@ -23,7 +23,6 @@ obj-$(CONFIG_MIPS_ALCHEMY) += pci-alchemy.o obj-$(CONFIG_PCI_AR2315) += pci-ar2315.o obj-$(CONFIG_SOC_AR71XX) += pci-ar71xx.o obj-$(CONFIG_PCI_AR724X) += pci-ar724x.o -obj-$(CONFIG_MIPS_PCI_VIRTIO) += pci-virtio-guest.o obj-$(CONFIG_PCI_XTALK_BRIDGE) += pci-xtalk-bridge.o # # These are still pretty much in the old state, watch, go blind. 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); |