Hello Jarkko,
On 12/13/23 12:20, Jarkko Sakkinen wrote:
On Tue Dec 12, 2023 at 6:39 PM EET, Ninad Palsule wrote:
From: Johannes Holland <johannes.holland@xxxxxxxxxxxx>
Add a dt schema to support device tree bindings for the generic I2C
physical layer. Refer to the TCG PC Client Platform TPM Profile (PTP)
Specification for TPM 2.0 v1.04 Revision 14.
This includes descriptions for the Nuvoton and Infineon devices.
OpenBMC-Staging-Count: 3
Please don't invent your own tags.
Yes, Sorry. I have cherry-picked this commit from openbmc. Now I have
removed this line.
Thanks for the review.
Thanks & Regards,
Ninad
Signed-off-by: Johannes Holland <johannes.holland@xxxxxxxxxxxx>
Signed-off-by: Joel Stanley <joel@xxxxxxxxx>
Signed-off-by: Ninad Palsule <ninad@xxxxxxxxxxxxx>
---
.../bindings/security/tpm/tpm-tis-i2c.yaml | 50 +++++++++++++++++++
1 file changed, 50 insertions(+)
create mode 100644 Documentation/devicetree/bindings/security/tpm/tpm-tis-i2c.yaml
diff --git a/Documentation/devicetree/bindings/security/tpm/tpm-tis-i2c.yaml b/Documentation/devicetree/bindings/security/tpm/tpm-tis-i2c.yaml
new file mode 100644
index 000000000000..de1e34065748
--- /dev/null
+++ b/Documentation/devicetree/bindings/security/tpm/tpm-tis-i2c.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/security/tpm/tpm-tis-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: I2C PTP based TPM Devices
+
+maintainers:
+ - Johannes Holland <johannes.holland@xxxxxxxxxxxx>
+
+description:
+ Device Tree Bindings for I2C based Trusted Platform Module (TPM).
+
+properties:
+ $nodename:
+ pattern: "^tpm(@[0-9a-f]+)?$"
+
+ compatible:
+ oneOf:
+ - description: Infineon's Trusted Platform Module (TPM) (SLB9673).
+ items:
+ - const: infineon,slb9673
+ - const: tcg,tpm-tis-i2c
+ - description: Nuvoton's Trusted Platform Module (TPM) (NPCT75x).
+ items:
+ - const: nuvoton,npct75x
+ - const: tcg,tpm-tis-i2c
+ - const: tcg,tpm-tis-i2c
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ tpm@2e {
+ compatible = "nuvoton,npct75x", "tcg,tpm-tis-i2c";
+ reg = <0x2e>;
+ };
+ };
+...
BR, Jarkko
