[U-Boot] [PATCH v3 0/16] tegra: Add fdt definitions and USB driver

[Simon Glass]

Hi Marek,

On Sun, Feb 26, 2012 at 3:09 PM, Marek Vasut <marex at denx.de> wrote:
>> This series brings in the kernel fdt file and provides a working
>> USB driver for Tegra2 Seaboard.
>>
>> (I have done this in one series since otherwise most of the fdt additions
>> will just look like dead code.)
>>
>> The driver requires CONFIG_OF_CONTROL and a device tree to operate.
>>
>> Some enhancements to fdtdec are required to make this easier, and these
>> are included in the series also. I have had to bring in basic GPIO
>> support due to the request to put the USB VBUS into the fdt.
>>
>> Since the kernel recently got a very minimal USB binding, I have started
>> with that and extended it where appropriate.
>>
>> Tegra likes to have cache-aligned buffers. I have dropped the patch which
>> implements this since we will solve this problem by making callers align
>> their buffers (as we did with MMC).
>>
>> Changes in v2:
>> - Use "okay" instead of "ok" for fdt node status
>> - Remove 0x from fdt aliases
>> - Rename params to timing
>> - Store entire fdt config in port list, not just register pointer
>> - Remove non-fdt operation of USB, since it is not needed
>> - Decode USB VBUS GPIO from the fdt
>> - Decode phy type differently (to match new kernel fdt)
>> - Rename tegra20-usb to tegra20-ehcui (to match new kernel fdt)
>> - Improve debug() printouts in case of failure to init USB
>> - Add setting of pinmux for USB VBUS GPIO
>> - Remove unneeded CONFIG_TEGRA_USBx defines
>>
>> Changes in v3:
>> - Remove "okay" from nodes since this is the default anyway
>> - Fix device tree indenting with tabs instead of spaces
>> - Disable USB2 which is not used on Seaboard
>> - Remove usbparams properties from fdt and moved them to C code
>> - Drop Tegra USB alignment patch as we will deal with this another way
>>
>> Simon Glass (16):
>>   fdt: Tidy up a few fdtdec problems
>>   fdt: Add functions to access phandles, arrays and bools
>>   Add gpio_request() to asm-generic header
>>   fdt: Add basic support for decoding GPIO definitions
>>   arm: fdt: Ensure that an embedded fdt is word-aligned
>>   arm: fdt: Add skeleton device tree file from kernel
>>   tegra: fdt: Add Tegra2x device tree file from kernel
>>   tegra: fdt: Add device tree file for Tegra2 Seaboard from kernel
>>   tegra: usb: fdt: Add additional device tree definitions for USB ports
>>   tegra: usb: fdt: Add USB definitions for Tegra2 Seaboard
>>   usb: Add support for txfifo threshold
>>   tegra: usb: Add support for Tegra USB peripheral
>>   tegra: usb: Add USB support to nvidia boards
>>   tegra: usb: Add common USB defines for tegra2 boards
>>   tegra: usb: Enable USB on Seaboard
>>   tegra: fdt: Enable FDT support for Seaboard
>>
>>  README                                    |    3 +
>>  arch/arm/cpu/armv7/tegra2/Makefile        |    4 +-
>>  arch/arm/cpu/armv7/tegra2/config.mk       |    2 +
>>  arch/arm/cpu/armv7/tegra2/usb.c           |  430
>> +++++++++++++++++++++++++++++ arch/arm/cpu/armv7/u-boot.lds             |
>>   5 +
>>  arch/arm/dts/skeleton.dtsi                |   13 +
>>  arch/arm/dts/tegra20.dtsi                 |  172 ++++++++++++
>>  arch/arm/include/asm/arch-tegra2/tegra2.h |    2 +
>>  arch/arm/include/asm/arch-tegra2/usb.h    |  255 +++++++++++++++++
>>  board/nvidia/common/board.c               |    8 +
>>  board/nvidia/dts/tegra2-seaboard.dts      |   47 ++++
>>  drivers/usb/host/Makefile                 |    1 +
>>  drivers/usb/host/ehci-hcd.c               |    7 +
>>  drivers/usb/host/ehci-tegra.c             |   63 +++++
>>  drivers/usb/host/ehci.h                   |    6 +-
>>  dts/Makefile                              |    2 +-
>>  include/asm-generic/gpio.h                |   10 +
>>  include/configs/seaboard.h                |   12 +
>>  include/configs/tegra2-common.h           |   14 +
>>  include/fdtdec.h                          |  109 +++++++-
>>  lib/fdtdec.c                              |  168 +++++++++++-
>>  21 files changed, 1320 insertions(+), 13 deletions(-)
>>  create mode 100644 arch/arm/cpu/armv7/tegra2/usb.c
>>  create mode 100644 arch/arm/dts/skeleton.dtsi
>>  create mode 100644 arch/arm/dts/tegra20.dtsi
>>  create mode 100644 arch/arm/include/asm/arch-tegra2/usb.h
>>  create mode 100644 board/nvidia/dts/tegra2-seaboard.dts
>>  create mode 100644 drivers/usb/host/ehci-tegra.c
>
> Hi,
>
> what's the status of this patch/patchset?

It needs a small update to the Tegra device tree files (2 of the
patches) and another change to deal with peripheral IDs (another 2 of
the patches). I expect to get this done in the next few days. After
that I am hoping we are done, but let's see.

Regards,
Simon

>
> Thanks
> M