[PATCH v2 00/10] Add RPMB support

[Sascha Hauer <s.hauer@pengutronix.de>]

This series adds the necessary pieces to provide OP-TEE access to RPMB
partitions under barebox.

With this OP-TEE can issue RPMB requests to barebox and barebox will
answer them accordingly.

OP-TEE will only access the RPMB when triggered by barebox. For this
purpose I implemented access to the Android Verified Boot (AVB) variable
store. This is implemented in U-Boot as well and the code is loosely
based on it. The variables can be read/written using the newly
introduced avb_pvalue command.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
Changes in v2:
- Use mmc of alias to translate OP-TEE dev_id into barebox mmc device
- Always copy mmc request to aligned address
- check mmc response for proper alignment
- Warn when we encounter an unimplemented OP-TEE RPC request
- Link to v1: https://lore.kernel.org/r/20250312-rpmb-v1-0-0f213382a3f3@pengutronix.de

---
Sascha Hauer (10):
      mci: implement mci_set_blockcount()
      mci: export some functions for RPMB support
      mci: detect RPMB partitions
      mci: add RPMB support
      tee: optee: probe successfully even when no devices are found
      tee: optee: implement shared mem alloc/free RPC commands
      tee: optee: implement RPMB support
      tee: optee: implement AVB named persistent values support
      commands: add avb_pvalue command
      ARM: omap: remove unused file

 commands/Kconfig                  |  13 +++
 commands/Makefile                 |   1 +
 commands/avb_pvalue.c             | 138 +++++++++++++++++++++++++
 drivers/mci/Kconfig               |   3 +
 drivers/mci/Makefile              |   1 +
 drivers/mci/mci-core.c            |  70 +++++++++++--
 drivers/mci/rpmb.c                | 210 ++++++++++++++++++++++++++++++++++++++
 drivers/tee/optee/Kconfig         |   9 ++
 drivers/tee/optee/Makefile        |   2 +
 drivers/tee/optee/avb.c           | 189 ++++++++++++++++++++++++++++++++++
 drivers/tee/optee/device.c        |   1 +
 drivers/tee/optee/optee_private.h |  13 +++
 drivers/tee/optee/optee_rpc_cmd.h | 144 ++++++++++++++++++++++++++
 drivers/tee/optee/rpc.c           |  64 +++++++++++-
 drivers/tee/optee/rpmb.c          | 121 ++++++++++++++++++++++
 drivers/tee/optee/smc_abi.c       |  26 +++--
 drivers/tee/tee_shm.c             |   1 +
 include/linux/tee_drv.h           |   1 +
 include/mach/omap/omap4-devices.h |  93 -----------------
 include/mci.h                     |  19 +++-
 include/tee/avb.h                 |   9 ++
 21 files changed, 1014 insertions(+), 114 deletions(-)
---
base-commit: ca25df4baad4569efabbebcd79ab4aee7ed226ff
change-id: 20250312-rpmb-c6f330f29cb1

Best regards,
-- 
Sascha Hauer <s.hauer@pengutronix.de>