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usb: host: xhci-tegra: Changes for v4.7-rc1 

This set of patches introduces a driver for the XUSB controller found on
 NVIDIA Tegra SoCs. When loaded with a firmware (available via the linux-
 firmware repository), it provides an XHCI-compatible interface.
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Merge tag 'tegra-for-4.7-xhci' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

Merge "usb: host: xhci-tegra: Changes for v4.7-rc1" from Thierry Reding:

This set of patches introduces a driver for the XUSB controller found on
NVIDIA Tegra SoCs. When loaded with a firmware (available via the linux-
firmware repository), it provides an XHCI-compatible interface.

* tag 'tegra-for-4.7-xhci' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  usb: xhci: tegra: Add Tegra210 support
  usb: xhci: Add NVIDIA Tegra XUSB controller driver
  dt-bindings: usb: xhci-tegra: Add Tegra210 XUSB controller support
  dt-bindings: usb: Add NVIDIA Tegra XUSB controller binding
This commit is contained in:
Arnd Bergmann 2016-05-09 16:23:47 +02:00
parent 675de1d514 ab065e9696
commit 2f0e234039
4 changed files with 1461 additions and 0 deletions
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120
Documentation/devicetree/bindings/usb/nvidia,tegra124-xusb.txt Normal file
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@ -0,0 +1,120 @@
NVIDIA Tegra xHCI controller
============================
The Tegra xHCI controller supports both USB2 and USB3 interfaces exposed by
the Tegra XUSB pad controller.
Required properties:
--------------------
- compatible: Must be:
- Tegra124: "nvidia,tegra124-xusb"
- Tegra132: "nvidia,tegra132-xusb", "nvidia,tegra124-xusb"
- Tegra210: "nvidia,tegra210-xusb"
- reg: Must contain the base and length of the xHCI host registers, XUSB FPCI
registers and XUSB IPFS registers.
- reg-names: Must contain the following entries:
- "hcd"
- "fpci"
- "ipfs"
- interrupts: Must contain the xHCI host interrupt and the mailbox interrupt.
- clocks: Must contain an entry for each entry in clock-names.
See ../clock/clock-bindings.txt for details.
- clock-names: Must include the following entries:
- xusb_host
- xusb_host_src
- xusb_falcon_src
- xusb_ss
- xusb_ss_src
- xusb_ss_div2
- xusb_hs_src
- xusb_fs_src
- pll_u_480m
- clk_m
- pll_e
- resets: Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names: Must include the following entries:
- xusb_host
- xusb_ss
- xusb_src
Note that xusb_src is the shared reset for xusb_{ss,hs,fs,falcon,host}_src.
- nvidia,xusb-padctl: phandle to the XUSB pad controller that is used to
configure the USB pads used by the XHCI controller
For Tegra124 and Tegra132:
- avddio-pex-supply: PCIe/USB3 analog logic power supply. Must supply 1.05 V.
- dvddio-pex-supply: PCIe/USB3 digital logic power supply. Must supply 1.05 V.
- avdd-usb-supply: USB controller power supply. Must supply 3.3 V.
- avdd-pll-utmip-supply: UTMI PLL power supply. Must supply 1.8 V.
- avdd-pll-erefe-supply: PLLE reference PLL power supply. Must supply 1.05 V.
- avdd-usb-ss-pll-supply: PCIe/USB3 PLL power supply. Must supply 1.05 V.
- hvdd-usb-ss-supply: High-voltage PCIe/USB3 power supply. Must supply 3.3 V.
- hvdd-usb-ss-pll-e-supply: High-voltage PLLE power supply. Must supply 3.3 V.
For Tegra210:
- dvddio-pex-supply: PCIe/USB3 analog logic power supply. Must supply 1.05 V.
- hvddio-pex-supply: High-voltage PCIe/USB3 power supply. Must supply 1.8 V.
- avdd-usb-supply: USB controller power supply. Must supply 3.3 V.
- avdd-pll-utmip-supply: UTMI PLL power supply. Must supply 1.8 V.
- avdd-pll-uerefe-supply: PLLE reference PLL power supply. Must supply 1.05 V.
- dvdd-pex-pll-supply: PCIe/USB3 PLL power supply. Must supply 1.05 V.
- hvdd-pex-pll-e-supply: High-voltage PLLE power supply. Must supply 1.8 V.
Optional properties:
--------------------
- phys: Must contain an entry for each entry in phy-names.
See ../phy/phy-bindings.txt for details.
- phy-names: Should include an entry for each PHY used by the controller. The
following PHYs are available:
- Tegra124: usb2-0, usb2-1, usb2-2, hsic-0, hsic-1, usb3-0, usb3-1
- Tegra132: usb2-0, usb2-1, usb2-2, hsic-0, hsic-1, usb3-0, usb3-1
- Tegra210: usb2-0, usb2-1, usb2-2, usb2-3, hsic-0, usb3-0, usb3-1, usb3-2,
usb3-3
Example:
--------
usb@0,70090000 {
compatible = "nvidia,tegra124-xusb";
reg = <0x0 0x70090000 0x0 0x8000>,
<0x0 0x70098000 0x0 0x1000>,
<0x0 0x70099000 0x0 0x1000>;
reg-names = "hcd", "fpci", "ipfs";
interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&tegra_car TEGRA124_CLK_XUSB_HOST>,
<&tegra_car TEGRA124_CLK_XUSB_HOST_SRC>,
<&tegra_car TEGRA124_CLK_XUSB_FALCON_SRC>,
<&tegra_car TEGRA124_CLK_XUSB_SS>,
<&tegra_car TEGRA124_CLK_XUSB_SS_DIV2>,
<&tegra_car TEGRA124_CLK_XUSB_SS_SRC>,
<&tegra_car TEGRA124_CLK_XUSB_HS_SRC>,
<&tegra_car TEGRA124_CLK_XUSB_FS_SRC>,
<&tegra_car TEGRA124_CLK_PLL_U_480M>,
<&tegra_car TEGRA124_CLK_CLK_M>,
<&tegra_car TEGRA124_CLK_PLL_E>;
clock-names = "xusb_host", "xusb_host_src", "xusb_falcon_src",
"xusb_ss", "xusb_ss_div2", "xusb_ss_src",
"xusb_hs_src", "xusb_fs_src", "pll_u_480m",
"clk_m", "pll_e";
resets = <&tegra_car 89>, <&tegra_car 156>, <&tegra_car 143>;
reset-names = "xusb_host", "xusb_ss", "xusb_src";
nvidia,xusb-padctl = <&padctl>;
phys = <&{/padctl@0,7009f000/pads/usb2/usb2-1}>, /* mini-PCIe USB */
<&{/padctl@0,7009f000/pads/usb2/usb2-2}>, /* USB A */
<&{/padctl@0,7009f000/pads/pcie/pcie-0}>; /* USB A */
phy-names = "utmi-1", "utmi-2", "usb3-0";
avddio-pex-supply = <&vdd_1v05_run>;
dvddio-pex-supply = <&vdd_1v05_run>;
avdd-usb-supply = <&vdd_3v3_lp0>;
avdd-pll-utmip-supply = <&vddio_1v8>;
avdd-pll-erefe-supply = <&avdd_1v05_run>;
avdd-usb-ss-pll-supply = <&vdd_1v05_run>;
hvdd-usb-ss-supply = <&vdd_3v3_lp0>;
hvdd-usb-ss-pll-e-supply = <&vdd_3v3_lp0>;
};

9
drivers/usb/host/Kconfig
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@ -69,6 +69,15 @@ config USB_XHCI_RCAR
Say 'Y' to enable the support for the xHCI host controller
found in Renesas R-Car ARM SoCs.
config USB_XHCI_TEGRA
tristate "xHCI support for NVIDIA Tegra SoCs"
depends on PHY_TEGRA_XUSB
depends on RESET_CONTROLLER
select FW_LOADER
---help---
Say 'Y' to enable the support for the xHCI host controller
found in NVIDIA Tegra124 and later SoCs.
endif # USB_XHCI_HCD
config USB_EHCI_HCD

1
drivers/usb/host/Makefile
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@ -68,6 +68,7 @@ obj-$(CONFIG_USB_XHCI_HCD) += xhci-hcd.o
obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o
obj-$(CONFIG_USB_XHCI_PLATFORM) += xhci-plat-hcd.o
obj-$(CONFIG_USB_XHCI_MTK) += xhci-mtk.o
obj-$(CONFIG_USB_XHCI_TEGRA) += xhci-tegra.o
obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o
obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o
obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o

1331
drivers/usb/host/xhci-tegra.c Normal file
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