diff options
Diffstat (limited to 'Documentation/powerpc/dts-bindings')
| -rw-r--r-- | Documentation/powerpc/dts-bindings/fsl/upm-nand.txt | 39 | ||||
| -rw-r--r-- | Documentation/powerpc/dts-bindings/gpio/led.txt | 46 |
2 files changed, 74 insertions, 11 deletions
diff --git a/Documentation/powerpc/dts-bindings/fsl/upm-nand.txt b/Documentation/powerpc/dts-bindings/fsl/upm-nand.txt index 84a04d5eb8e..a48b2cadc7f 100644 --- a/Documentation/powerpc/dts-bindings/fsl/upm-nand.txt +++ b/Documentation/powerpc/dts-bindings/fsl/upm-nand.txt @@ -5,9 +5,21 @@ Required properties: - reg : should specify localbus chip select and size used for the chip. - fsl,upm-addr-offset : UPM pattern offset for the address latch. - fsl,upm-cmd-offset : UPM pattern offset for the command latch. -- gpios : may specify optional GPIO connected to the Ready-Not-Busy pin. -Example: +Optional properties: +- fsl,upm-wait-flags : add chip-dependent short delays after running the + UPM pattern (0x1), after writing a data byte (0x2) or after + writing out a buffer (0x4). +- fsl,upm-addr-line-cs-offsets : address offsets for multi-chip support. + The corresponding address lines are used to select the chip. +- gpios : may specify optional GPIOs connected to the Ready-Not-Busy pins + (R/B#). For multi-chip devices, "n" GPIO definitions are required + according to the number of chips. +- chip-delay : chip dependent delay for transfering data from array to + read registers (tR). Required if property "gpios" is not used + (R/B# pins not connected). + +Examples: upm@1,0 { compatible = "fsl,upm-nand"; @@ -26,3 +38,26 @@ upm@1,0 { }; }; }; + +upm@3,0 { + #address-cells = <0>; + #size-cells = <0>; + compatible = "tqc,tqm8548-upm-nand", "fsl,upm-nand"; + reg = <3 0x0 0x800>; + fsl,upm-addr-offset = <0x10>; + fsl,upm-cmd-offset = <0x08>; + /* Multi-chip NAND device */ + fsl,upm-addr-line-cs-offsets = <0x0 0x200>; + fsl,upm-wait-flags = <0x5>; + chip-delay = <25>; // in micro-seconds + + nand@0 { + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "fs"; + reg = <0x00000000 0x10000000>; + }; + }; +}; diff --git a/Documentation/powerpc/dts-bindings/gpio/led.txt b/Documentation/powerpc/dts-bindings/gpio/led.txt index ff51f4c0fa9..4fe14deedc0 100644 --- a/Documentation/powerpc/dts-bindings/gpio/led.txt +++ b/Documentation/powerpc/dts-bindings/gpio/led.txt @@ -1,15 +1,43 @@ -LED connected to GPIO +LEDs connected to GPIO lines Required properties: -- compatible : should be "gpio-led". -- label : (optional) the label for this LED. If omitted, the label is +- compatible : should be "gpio-leds". + +Each LED is represented as a sub-node of the gpio-leds device. Each +node's name represents the name of the corresponding LED. + +LED sub-node properties: +- gpios : Should specify the LED's GPIO, see "Specifying GPIO information + for devices" in Documentation/powerpc/booting-without-of.txt. Active + low LEDs should be indicated using flags in the GPIO specifier. +- label : (optional) The label for this LED. If omitted, the label is taken from the node name (excluding the unit address). -- gpios : should specify LED GPIO. +- linux,default-trigger : (optional) This parameter, if present, is a + string defining the trigger assigned to the LED. Current triggers are: + "backlight" - LED will act as a back-light, controlled by the framebuffer + system + "default-on" - LED will turn on + "heartbeat" - LED "double" flashes at a load average based rate + "ide-disk" - LED indicates disk activity + "timer" - LED flashes at a fixed, configurable rate -Example: +Examples: -led@0 { - compatible = "gpio-led"; - label = "hdd"; - gpios = <&mcu_pio 0 1>; +leds { + compatible = "gpio-leds"; + hdd { + label = "IDE Activity"; + gpios = <&mcu_pio 0 1>; /* Active low */ + linux,default-trigger = "ide-disk"; + }; }; + +run-control { + compatible = "gpio-leds"; + red { + gpios = <&mpc8572 6 0>; + }; + green { + gpios = <&mpc8572 7 0>; + }; +} |