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| author | Laxman Dewangan <ldewangan@nvidia.com> | 2012-11-14 05:54:47 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-11-14 11:04:53 +0900 |
| commit | 8528547bcc33622176a27963dc8a2513d116b832 (patch) | |
| tree | f01b88ca7385ee81d7f4ed4f925b9b759bbc5c0c /Documentation | |
| parent | 24bc89716163b4e30c1b71c9f4bd020387b13c96 (diff) | |
| download | op-kernel-dev-8528547bcc33622176a27963dc8a2513d116b832.zip op-kernel-dev-8528547bcc33622176a27963dc8a2513d116b832.tar.gz | |
spi: tegra: add spi driver for sflash controller
NVIDIA's Tegra20 have the SPI (SFLASH) controller to
interface with spi flash device which is used for system
boot. Add the spi driver for this controller.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/nvidia,tegra20-sflash.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra20-sflash.txt b/Documentation/devicetree/bindings/spi/nvidia,tegra20-sflash.txt new file mode 100644 index 0000000..8cf24f6 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/nvidia,tegra20-sflash.txt @@ -0,0 +1,26 @@ +NVIDIA Tegra20 SFLASH controller. + +Required properties: +- compatible : should be "nvidia,tegra20-sflash". +- reg: Should contain SFLASH registers location and length. +- interrupts: Should contain SFLASH interrupts. +- nvidia,dma-request-selector : The Tegra DMA controller's phandle and + request selector for this SFLASH controller. + +Recommended properties: +- spi-max-frequency: Definition as per + Documentation/devicetree/bindings/spi/spi-bus.txt + +Example: + +spi@7000d600 { + compatible = "nvidia,tegra20-sflash"; + reg = <0x7000c380 0x80>; + interrupts = <0 39 0x04>; + nvidia,dma-request-selector = <&apbdma 16>; + spi-max-frequency = <25000000>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; +}; + |
