Merge branch 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
[muen/linux.git] / Documentation / devicetree / bindings / security / tpm / tpm-i2c.txt
1 * Device Tree Bindings for I2C based Trusted Platform Module(TPM)
2
3 Required properties:
4
5 - compatible     : 'manufacturer,model', eg. nuvoton,npct650
6 - label          : human readable string describing the device, eg. "tpm"
7 - linux,sml-base : 64-bit base address of the reserved memory allocated for
8                    the firmware event log
9 - linux,sml-size : size of the memory allocated for the firmware event log
10
11 Optional properties:
12
13 - powered-while-suspended: present when the TPM is left powered on between
14                            suspend and resume (makes the suspend/resume
15                            callbacks do nothing).
16
17 Example (for OpenPower Systems with Nuvoton TPM 2.0 on I2C)
18 ----------------------------------------------------------
19
20 tpm@57 {
21         reg = <0x57>;
22         label = "tpm";
23         compatible = "nuvoton,npct650", "nuvoton,npct601";
24         linux,sml-base = <0x7f 0xfd450000>;
25         linux,sml-size = <0x10000>;
26 };