Hi Marek,
On Sun, Feb 26, 2012 at 3:09 PM, Marek Vasut marex@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
Ok, please CC me when you resubmit so I can check and apply the USB stuff. Thanks!
M