diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/crypto/fsl-imx-sahara.txt | 15 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/hwrng/timeriomem_rng.txt | 18 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/rng/brcm,bcm2835.txt | 13 | ||||
| -rw-r--r-- | Documentation/hw_random.txt | 2 |
4 files changed, 47 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/crypto/fsl-imx-sahara.txt b/Documentation/devicetree/bindings/crypto/fsl-imx-sahara.txt new file mode 100644 index 00000000000..5c65eccd0e5 --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/fsl-imx-sahara.txt @@ -0,0 +1,15 @@ +Freescale SAHARA Cryptographic Accelerator included in some i.MX chips. +Currently only i.MX27 is supported. + +Required properties: +- compatible : Should be "fsl,<soc>-sahara" +- reg : Should contain SAHARA registers location and length +- interrupts : Should contain SAHARA interrupt number + +Example: + +sah@10025000 { + compatible = "fsl,imx27-sahara"; + reg = < 0x10025000 0x800>; + interrupts = <75>; +}; diff --git a/Documentation/devicetree/bindings/hwrng/timeriomem_rng.txt b/Documentation/devicetree/bindings/hwrng/timeriomem_rng.txt new file mode 100644 index 00000000000..6616d15866a --- /dev/null +++ b/Documentation/devicetree/bindings/hwrng/timeriomem_rng.txt @@ -0,0 +1,18 @@ +HWRNG support for the timeriomem_rng driver + +Required properties: +- compatible : "timeriomem_rng" +- reg : base address to sample from +- period : wait time in microseconds to use between samples + +N.B. currently 'reg' must be four bytes wide and aligned + +Example: + +hwrng@44 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "timeriomem_rng"; + reg = <0x44 0x04>; + period = <1000000>; +}; diff --git a/Documentation/devicetree/bindings/rng/brcm,bcm2835.txt b/Documentation/devicetree/bindings/rng/brcm,bcm2835.txt new file mode 100644 index 00000000000..07ccdaa6832 --- /dev/null +++ b/Documentation/devicetree/bindings/rng/brcm,bcm2835.txt @@ -0,0 +1,13 @@ +BCM2835 Random number generator + +Required properties: + +- compatible : should be "brcm,bcm2835-rng" +- reg : Specifies base physical address and size of the registers. + +Example: + +rng { + compatible = "brcm,bcm2835-rng"; + reg = <0x7e104000 0x10>; +}; diff --git a/Documentation/hw_random.txt b/Documentation/hw_random.txt index 690f52550c8..026e237bbc8 100644 --- a/Documentation/hw_random.txt +++ b/Documentation/hw_random.txt @@ -63,7 +63,7 @@ Intel RNG Driver notes: * FIXME: support poll(2) - NOTE: request_mem_region was removed, for two reasons: + NOTE: request_mem_region was removed, for three reasons: 1) Only one RNG is supported by this driver, 2) The location used by the RNG is a fixed location in MMIO-addressable memory, 3) users with properly working BIOS e820 handling will always |