[RFC v4 0/6] barebox PCI support

[Antony Pavlov]

This patchseries introduce simple PCI bus support for barebox.

Changes since RFC v3:

  * rebase over latest 'next';
  * use list for pci_root_buses;
  * move common PCI Kconfig stuff from arch/mips to drivers/pci;
  * make pci_*_write_config_* PCIe-friendly (use 'int' type for
    config register address);
  * drop some unused stuff;
  * change lspci "no pci" error message to "No PCI bus detected";
  * rtl8139: use dma_alloc_coherent();
  * rtl8139: use pci_set_master() & pci_clear_master().

TODOs for RFC v3:

  * no PCI bridges support;
  * introduce pci_resource_start();
  * introduce pci_iomap();
  * clean '#if 0'.

This patchseries can be found on github:

  https://github.com/frantony/barebox/tree/pci.20140630

Antony Pavlov (6):
  MIPS: add dma_alloc_coherent()
  PCI: initial commit
  commands: add 'lspci' command
  net: add RealTek RTL-8139 PCI Ethernet driver
  MIPS: add PCI support for GT64120-based Malta board
  MIPS: qemu-malta_defconfig: enable PCI & network stuff

 arch/mips/Kconfig                                |   1 +
 arch/mips/configs/qemu-malta_defconfig           |   4 +
 arch/mips/include/asm/dma-mapping.h              |  25 +
 arch/mips/include/asm/gt64120.h                  |  53 ++
 arch/mips/mach-malta/Makefile                    |   1 +
 arch/mips/mach-malta/include/mach/mach-gt64120.h |   2 +
 arch/mips/mach-malta/pci.c                       | 236 +++++++++
 commands/Kconfig                                 |   8 +
 commands/Makefile                                |   1 +
 commands/lspci.c                                 |  52 ++
 drivers/Kconfig                                  |   1 +
 drivers/Makefile                                 |   1 +
 drivers/net/Kconfig                              |   8 +
 drivers/net/Makefile                             |   1 +
 drivers/net/rtl8139.c                            | 616 +++++++++++++++++++++++
 drivers/pci/Kconfig                              |  29 ++
 drivers/pci/Makefile                             |   8 +
 drivers/pci/bus.c                                | 110 ++++
 drivers/pci/pci.c                                | 285 +++++++++++
 include/linux/mod_devicetable.h                  |  20 +
 include/linux/pci.h                              | 292 +++++++++++
 include/linux/pci_ids.h                          | 141 ++++++
 include/linux/pci_regs.h                         | 110 ++++
 23 files changed, 2005 insertions(+)
 create mode 100644 arch/mips/include/asm/dma-mapping.h
 create mode 100644 arch/mips/mach-malta/pci.c
 create mode 100644 commands/lspci.c
 create mode 100644 drivers/net/rtl8139.c
 create mode 100644 drivers/pci/Kconfig
 create mode 100644 drivers/pci/Makefile
 create mode 100644 drivers/pci/bus.c
 create mode 100644 drivers/pci/pci.c
 create mode 100644 include/linux/mod_devicetable.h
 create mode 100644 include/linux/pci.h
 create mode 100644 include/linux/pci_ids.h
 create mode 100644 include/linux/pci_regs.h

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1.9.2