diff options
Diffstat (limited to 'Documentation/powerpc')
| -rw-r--r-- | Documentation/powerpc/booting-without-of.txt | 4 | ||||
| -rw-r--r-- | Documentation/powerpc/dts-bindings/4xx/reboot.txt | 18 | ||||
| -rw-r--r-- | Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt | 22 | ||||
| -rw-r--r-- | Documentation/powerpc/dts-bindings/fsl/diu.txt | 20 | ||||
| -rw-r--r-- | Documentation/powerpc/dts-bindings/fsl/esdhc.txt | 2 | ||||
| -rw-r--r-- | Documentation/powerpc/dts-bindings/fsl/i2c.txt | 2 | ||||
| -rw-r--r-- | Documentation/powerpc/dts-bindings/xilinx.txt | 2 | ||||
| -rw-r--r-- | Documentation/powerpc/phyp-assisted-dump.txt | 2 |
8 files changed, 65 insertions, 7 deletions
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index 79f533f..568fa08 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1048,7 +1048,7 @@ IV - "dtc", the device tree compiler dtc source code can be found at -<http://ozlabs.org/~dgibson/dtc/dtc.tar.gz> +<http://git.jdl.com/gitweb/?p=dtc.git> WARNING: This version is still in early development stage; the resulting device-tree "blobs" have not yet been validated with the @@ -1289,7 +1289,7 @@ link between a device node and its interrupt parent in the interrupt tree. The value of interrupt-parent is the phandle of the parent node. -If the interrupt-parent property is not defined for a node, it's +If the interrupt-parent property is not defined for a node, its interrupt parent is assumed to be an ancestor in the node's _device tree_ hierarchy. diff --git a/Documentation/powerpc/dts-bindings/4xx/reboot.txt b/Documentation/powerpc/dts-bindings/4xx/reboot.txt new file mode 100644 index 0000000..d721726 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/4xx/reboot.txt @@ -0,0 +1,18 @@ +Reboot property to control system reboot on PPC4xx systems: + +By setting "reset_type" to one of the following values, the default +software reset mechanism may be overidden. Here the possible values of +"reset_type": + + 1 - PPC4xx core reset + 2 - PPC4xx chip reset + 3 - PPC4xx system reset (default) + +Example: + + cpu@0 { + device_type = "cpu"; + model = "PowerPC,440SPe"; + ... + reset-type = <2>; /* Use chip-reset */ + }; diff --git a/Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt b/Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt index d015dce..b0019eb 100644 --- a/Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt +++ b/Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt @@ -11,7 +11,7 @@ Required properties: 83xx, "fsl,mpc8572-gpio" for 85xx and "fsl,mpc8610-gpio" for 86xx. - #gpio-cells : Should be two. The first cell is the pin number and the second cell is used to specify optional parameters (currently unused). - - interrupts : Interrupt mapping for GPIO IRQ (currently unused). + - interrupts : Interrupt mapping for GPIO IRQ. - interrupt-parent : Phandle for the interrupt controller that services interrupts for this device. - gpio-controller : Marks the port as GPIO controller. @@ -38,3 +38,23 @@ Example of gpio-controller nodes for a MPC8347 SoC: See booting-without-of.txt for details of how to specify GPIO information for devices. + +To use GPIO pins as interrupt sources for peripherals, specify the +GPIO controller as the interrupt parent and define GPIO number + +trigger mode using the interrupts property, which is defined like +this: + +interrupts = <number trigger>, where: + - number: GPIO pin (0..31) + - trigger: trigger mode: + 2 = trigger on falling edge + 3 = trigger on both edges + +Example of device using this is: + + funkyfpga@0 { + compatible = "funky-fpga"; + ... + interrupts = <4 3>; + interrupt-parent = <&gpio1>; + }; diff --git a/Documentation/powerpc/dts-bindings/fsl/diu.txt b/Documentation/powerpc/dts-bindings/fsl/diu.txt index deb35de..b66cb6d 100644 --- a/Documentation/powerpc/dts-bindings/fsl/diu.txt +++ b/Documentation/powerpc/dts-bindings/fsl/diu.txt @@ -4,10 +4,17 @@ The Freescale DIU is a LCD controller, with proper hardware, it can also drive DVI monitors. Required properties: -- compatible : should be "fsl-diu". +- compatible : should be "fsl,diu" or "fsl,mpc5121-diu". - reg : should contain at least address and length of the DIU register set. -- Interrupts : one DIU interrupt should be describe here. +- interrupts : one DIU interrupt should be described here. +- interrupt-parent : the phandle for the interrupt controller that + services interrupts for this device. + +Optional properties: +- edid : verbatim EDID data block describing attached display. + Data from the detailed timing descriptor will be used to + program the display controller. Example (MPC8610HPCD): display@2c000 { @@ -16,3 +23,12 @@ Example (MPC8610HPCD): interrupts = <72 2>; interrupt-parent = <&mpic>; }; + +Example for MPC5121: + display@2100 { + compatible = "fsl,mpc5121-diu"; + reg = <0x2100 0x100>; + interrupts = <64 0x8>; + interrupt-parent = <&ipic>; + edid = [edid-data]; + }; diff --git a/Documentation/powerpc/dts-bindings/fsl/esdhc.txt b/Documentation/powerpc/dts-bindings/fsl/esdhc.txt index 8a00407..64bcb8b 100644 --- a/Documentation/powerpc/dts-bindings/fsl/esdhc.txt +++ b/Documentation/powerpc/dts-bindings/fsl/esdhc.txt @@ -14,6 +14,8 @@ Required properties: reports inverted write-protect state; - sdhci,1-bit-only : (optional) specifies that a controller can only handle 1-bit data transfers. + - sdhci,auto-cmd12: (optional) specifies that a controller can + only handle auto CMD12. Example: diff --git a/Documentation/powerpc/dts-bindings/fsl/i2c.txt b/Documentation/powerpc/dts-bindings/fsl/i2c.txt index 50da203..1eacd6b 100644 --- a/Documentation/powerpc/dts-bindings/fsl/i2c.txt +++ b/Documentation/powerpc/dts-bindings/fsl/i2c.txt @@ -20,6 +20,7 @@ Recommended properties : - fsl,preserve-clocking : boolean; if defined, the clock settings from the bootloader are preserved (not touched). - clock-frequency : desired I2C bus clock frequency in Hz. + - fsl,timeout : I2C bus timeout in microseconds. Examples : @@ -59,4 +60,5 @@ Examples : interrupts = <43 2>; interrupt-parent = <&mpic>; clock-frequency = <400000>; + fsl,timeout = <10000>; }; diff --git a/Documentation/powerpc/dts-bindings/xilinx.txt b/Documentation/powerpc/dts-bindings/xilinx.txt index ea68046..299d0923 100644 --- a/Documentation/powerpc/dts-bindings/xilinx.txt +++ b/Documentation/powerpc/dts-bindings/xilinx.txt @@ -11,7 +11,7 @@ control how the core is synthesized. Historically, the EDK tool would extract the device parameters relevant to device drivers and copy them into an 'xparameters.h' in the form of #define symbols. This tells the - device drivers how the IP cores are configured, but it requres the kernel + device drivers how the IP cores are configured, but it requires the kernel to be recompiled every time the FPGA bitstream is resynthesized. The new approach is to export the parameters into the device tree and diff --git a/Documentation/powerpc/phyp-assisted-dump.txt b/Documentation/powerpc/phyp-assisted-dump.txt index c4682b9..ad34020 100644 --- a/Documentation/powerpc/phyp-assisted-dump.txt +++ b/Documentation/powerpc/phyp-assisted-dump.txt @@ -19,7 +19,7 @@ dump offers several strong, practical advantages: immediately available to the system for normal use. -- After the dump is completed, no further reboots are required; the system will be fully usable, and running - in it's normal, production mode on it normal kernel. + in its normal, production mode on its normal kernel. The above can only be accomplished by coordination with, and assistance from the hypervisor. The procedure is |
