[U-Boot] [PATCH v2 00/40] ARM: tegra: Add PCIe support

Thierry Reding thierry.reding at gmail.com
Tue Aug 26 17:33:48 CEST 2014


From: Thierry Reding <treding at nvidia.com>

This series adds PCIe support for Tegra20, Tegra30 and Tegra124. The size is
mostly due to the large number of infrastructure that's added (libfdt, Tegra
specific drivers required by the PCIe driver). In this version I've included
all patches that were previously split into three separate series. Spreading
them over multiple series is probably not worth it since there might be some
dependencies between them and only the end result gives a completely working
setup.

Patch 1 adds a %pa modifier to printf() to print physical addresses. This is
required to allow code to output such addresses irrespective of whether a 64
bit or 32 bit architecture is built for.

Patches 2-7 add various FDT helpers to make it easier to parse complex device
trees.

Patch 8 is a minor cleanup to the PCI command that prevents a spew of error
messages if a bus does not exist. Patch 9 modifies the PCI enumeration code
to honor theh restrictions encoded within a host controller driver's
pci_ski_dev() implementation. This is required to prevent exceptions from
the NVIDIA Tegra PCIe controller.

Patch 10 imports the pr_fmt() macro used within the Linux kernel to reduce
the number of characters consumed by literal strings by allowing a source
file to specify a prefix or suffix that should be applied to all format
strings in the file. It is currently used by the debug() and error() macros.

Patches 11-14 are some cleanup and refactoring of I2C core code, the addition
of a higher level API that makes it easier for I2C client drivers to talk to
devices. The Tegra I2C driver now implements i2c_get_bus_num_fdt() to obtain
bus numbers corresponding to a DT node.

Patch 15 implements a driver for the AS3722 PMIC used on the Venice2 and
Jetson TK1 boards.

Patches 16-21 are preparatory work for the Tegra PCIe controller. They add
missing clock driver functionality as well as drivers for the Tegra powergate
and XUSB pad controller blocks.

Patch 22 adds the PCIe controller driver for Tegra20, Tegra30 and Tegra124.

Device tree nodes and configurations options to enable PCIe on the TrimSlice
(Tegra20), Beaver, Cardhu (Tegra30) and Jetson TK1 (Tegra124) boards are
added in patches 23-31.

Patches 32-35 implement non-cached memory support that will be used in the
last batch of patches to implement more reliable packet transfers in the
r8169 driver. Patch 36 enables non-cached memory support on Tegra.

Finally, patches 37-40 implement non-cached memory support and various fixes
in the r8169 driver and add support for the revision of the NIC found on the
Jetson TK1.

The above boards all have an ethernet NIC connected to PCIe, which is what
I tested with.

Thierry Reding (40):
  vsprintf: Add modifier for phys_addr_t
  fdt: Add a function to count strings
  fdt: Add a function to get the index of a string
  fdt: Add functions to retrieve strings
  fdt: Add resource parsing functions
  fdt: Add a function to return PCI BDF triplet
  fdt: Add a subnodes iterator macro
  pci: Abort early if bus does not exist
  pci: Honour pci_skip_dev()
  Add pr_fmt() macro
  i2c: Initialize the correct bus
  i2c: Refactor adapter initialization
  i2c: Add high-level API
  i2c: tegra: Implement i2c_get_bus_num_fdt()
  power: Add AMS AS3722 PMIC support
  ARM: tegra: Implement tegra_plle_enable()
  ARM: tegra: Provide PCIEXCLK reset ID
  ARM: tegra: Implement powergate support
  ARM: tegra: Implement XUSB pad controller
  ARM: tegra: Add XUSB pad controller on Tegra124
  ARM: tegra: Enable XUSB pad controller on Jetson TK1
  pci: tegra: Add Tegra PCIe driver
  ARM: tegra: Add Tegra20 PCIe device tree node
  ARM: tegra: Enable PCIe on TrimSlice
  ARM: tegra: Add GIC for Tegra30
  ARM: tegra: Add Tegra30 PCIe device tree node
  ARM: tegra: Enable PCIe on Cardhu
  ARM: tegra: Enable PCIe on Beaver
  ARM: tegra: Add GIC for Tegra124
  ARM: tegra: Add Tegra124 PCIe device tree node
  ARM: tegra: Enable PCIe on Jetson TK1
  ARM: cache_v7: Various minor cleanups
  ARM: cache-cp15: Use more accurate types
  malloc: Output region when debugging
  ARM: Implement non-cached memory support
  ARM: tegra: Enable non-cached memory
  net: rtl8169: Honor CONFIG_SYS_RX_ETH_BUFFER
  net: rtl8169: Properly align buffers
  net: rtl8169: Use non-cached memory if available
  net: rtl8169: Add support for RTL-8168/8111g

 README                                           |   19 +
 arch/arm/cpu/armv7/cache_v7.c                    |   14 +-
 arch/arm/cpu/tegra-common/Makefile               |    2 +
 arch/arm/cpu/tegra-common/powergate.c            |  102 ++
 arch/arm/cpu/tegra-common/xusb-padctl.c          |   39 +
 arch/arm/cpu/tegra124-common/Makefile            |    1 +
 arch/arm/cpu/tegra124-common/clock.c             |  109 +++
 arch/arm/cpu/tegra124-common/xusb-padctl.c       |  716 ++++++++++++++
 arch/arm/cpu/tegra20-common/clock.c              |  141 ++-
 arch/arm/cpu/tegra30-common/clock.c              |  155 +++
 arch/arm/dts/tegra124-jetson-tk1.dts             |  373 +++++++
 arch/arm/dts/tegra124.dtsi                       |   90 ++
 arch/arm/dts/tegra20-trimslice.dts               |   69 ++
 arch/arm/dts/tegra20.dtsi                        |   60 ++
 arch/arm/dts/tegra30-beaver.dts                  |  245 +++++
 arch/arm/dts/tegra30-cardhu.dts                  |  362 +++++++
 arch/arm/dts/tegra30.dtsi                        |   84 ++
 arch/arm/include/asm/arch-tegra/powergate.h      |   38 +
 arch/arm/include/asm/arch-tegra/xusb-padctl.h    |   24 +
 arch/arm/include/asm/arch-tegra114/powergate.h   |    6 +
 arch/arm/include/asm/arch-tegra124/clock.h       |    2 +
 arch/arm/include/asm/arch-tegra124/powergate.h   |    6 +
 arch/arm/include/asm/arch-tegra20/clock-tables.h |    2 +-
 arch/arm/include/asm/arch-tegra20/clock.h        |    2 +
 arch/arm/include/asm/arch-tegra20/powergate.h    |    6 +
 arch/arm/include/asm/arch-tegra30/clock.h        |    2 +
 arch/arm/include/asm/arch-tegra30/powergate.h    |    6 +
 arch/arm/include/asm/system.h                    |    7 +-
 arch/arm/lib/cache-cp15.c                        |    6 +-
 arch/arm/lib/cache.c                             |   42 +
 board/compulab/trimslice/trimslice.c             |    8 +
 board/nvidia/cardhu/cardhu.c                     |   56 ++
 board/nvidia/common/board.c                      |    3 +
 board/nvidia/jetson-tk1/jetson-tk1.c             |   52 +
 common/board_r.c                                 |   11 +
 common/cmd_pci.c                                 |    7 +
 common/dlmalloc.c                                |    3 +
 drivers/i2c/i2c_core.c                           |   80 +-
 drivers/i2c/tegra_i2c.c                          |   13 +
 drivers/net/rtl8169.c                            |  127 ++-
 drivers/pci/Makefile                             |    1 +
 drivers/pci/pci.c                                |    3 +
 drivers/pci/pci_tegra.c                          | 1143 ++++++++++++++++++++++
 drivers/power/Makefile                           |    1 +
 drivers/power/as3722.c                           |  300 ++++++
 include/common.h                                 |   14 +-
 include/configs/beaver.h                         |   10 +
 include/configs/cardhu.h                         |   10 +
 include/configs/jetson-tk1.h                     |   13 +
 include/configs/tegra-common.h                   |    1 +
 include/configs/trimslice.h                      |   10 +
 include/dt-bindings/clock/tegra124-car.h         |  341 +++++++
 include/dt-bindings/clock/tegra20-car.h          |  158 +++
 include/dt-bindings/clock/tegra30-car.h          |  265 +++++
 include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h |    7 +
 include/fdtdec.h                                 |   69 ++
 include/i2c.h                                    |   96 ++
 include/libfdt.h                                 |   72 ++
 include/pci.h                                    |    1 +
 include/power/as3722.h                           |   27 +
 lib/fdtdec.c                                     |   76 ++
 lib/libfdt/fdt_ro.c                              |   76 ++
 lib/vsprintf.c                                   |   16 +-
 63 files changed, 5736 insertions(+), 64 deletions(-)
 create mode 100644 arch/arm/cpu/tegra-common/powergate.c
 create mode 100644 arch/arm/cpu/tegra-common/xusb-padctl.c
 create mode 100644 arch/arm/cpu/tegra124-common/xusb-padctl.c
 create mode 100644 arch/arm/include/asm/arch-tegra/powergate.h
 create mode 100644 arch/arm/include/asm/arch-tegra/xusb-padctl.h
 create mode 100644 arch/arm/include/asm/arch-tegra114/powergate.h
 create mode 100644 arch/arm/include/asm/arch-tegra124/powergate.h
 create mode 100644 arch/arm/include/asm/arch-tegra20/powergate.h
 create mode 100644 arch/arm/include/asm/arch-tegra30/powergate.h
 create mode 100644 drivers/pci/pci_tegra.c
 create mode 100644 drivers/power/as3722.c
 create mode 100644 include/dt-bindings/clock/tegra124-car.h
 create mode 100644 include/dt-bindings/clock/tegra20-car.h
 create mode 100644 include/dt-bindings/clock/tegra30-car.h
 create mode 100644 include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h
 create mode 100644 include/power/as3722.h

-- 
2.0.4



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