This series brings in the Linux 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
Changes in v4: - Add staging area for device tree bindings used in U-Boot - Add clock bindings for Tegra2x - Add fdtdec function to return peripheral ID - Use updated fdtdec alias functiona to get USB aliases - Use peripheral clock node to obtain peripheral ID
Simon Glass (20): fdt: Tidy up a few fdtdec problems fdt: Add functions to access phandles, arrays and bools 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 fdt: Add staging area for device tree binding documentation fdt: Add tegra-usb bindings file from linux tegra: fdt: Add additional USB binding tegra: fdt: Add clock bindings 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 fdt: Add function to return peripheral/clock ID 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 | 426 ++++++++++++++++++++++++ arch/arm/cpu/armv7/u-boot.lds | 5 + arch/arm/dts/skeleton.dtsi | 13 + arch/arm/dts/tegra20.dtsi | 199 +++++++++++ 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 +++ doc/device-tree-bindings/README | 19 + doc/device-tree-bindings/clock/tegra-periphclk | 51 +++ doc/device-tree-bindings/usb/tegra-usb.txt | 17 + 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/configs/seaboard.h | 12 + include/configs/tegra2-common.h | 14 + include/fdtdec.h | 121 +++++++- lib/fdtdec.c | 181 ++++++++++- 23 files changed, 1445 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 doc/device-tree-bindings/README create mode 100644 doc/device-tree-bindings/clock/tegra-periphclk create mode 100644 doc/device-tree-bindings/usb/tegra-usb.txt create mode 100644 drivers/usb/host/ehci-tegra.c