mbox series

[V2,0/4] Add new driver for WCSS secure PIL loading

Message ID 20240829134021.1452711-1-quic_gokulsri@quicinc.com
Headers show
Series Add new driver for WCSS secure PIL loading | expand

Message

Gokul Sriram Palanisamy Aug. 29, 2024, 1:40 p.m. UTC 
- Secure PIL is signed, split firmware images which only TrustZone (TZ) can
  authenticate and load. Linux kernel will send a request to TZ to
  authenticate and load the PIL images.

- When secure PIL support was added to the existing wcss PIL driver
  earlier in [2], Bjorn suggested not to overload the existing WCSS
  rproc driver [2], instead post a new driver for secure PIL alone.
  This series adds a new secure PIL driver for the same. 

[1] https://patchwork.kernel.org/project/linux-arm-msm/cover/20240820055618.267554-1-quic_gokulsri@quicinc.com/

[2] https://patchwork.kernel.org/project/linux-arm-msm/patch/1611984013-10201-3-git-send-email-gokulsri@codeaurora.org/

changes since v1:
	- Removed dependency of this series to q6 clock removal series
	as recommended by Krzysztof

Manikanta Mylavarapu (3):
  dt-bindings: remoteproc: qcom: document hexagon based WCSS secure PIL
  arm64: dts: qcom: ipq5332: add nodes to bringup q6
  arm64: dts: qcom: ipq9574: add nodes to bring up q6

Vignesh Viswanathan (1):
  remoteproc: qcom: add hexagon based WCSS secure PIL driver

 .../remoteproc/qcom,wcss-sec-pil.yaml         | 125 +++++++
 arch/arm64/boot/dts/qcom/ipq5332.dtsi         |  62 +++
 arch/arm64/boot/dts/qcom/ipq9574.dtsi         |  58 +++
 drivers/remoteproc/Kconfig                    |  22 ++
 drivers/remoteproc/Makefile                   |   1 +
 drivers/remoteproc/qcom_q6v5_wcss_sec.c       | 354 ++++++++++++++++++
 6 files changed, 622 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,wcss-sec-pil.yaml
 create mode 100644 drivers/remoteproc/qcom_q6v5_wcss_sec.c