Hi Aidan, On Tue, 12 May 2026 at 18:26, Aidan Garske <[email protected]> wrote: > > From: Aidan <[email protected]> > > Split the tpm2 command implementation into a shared frontend and > two selectable backends. This allows wolfTPM to provide its own > TPM2 command implementations while keeping the command table, > dispatcher, and help text shared. > > Architecture: > > cmd/tpm-v2.c (frontend - always compiled): > Contains the tpm2_commands[] table, get_tpm2_commands(), the > do_tpm2() dispatcher, and the U_BOOT_CMD help text. References > backend functions via cmd/tpm2-backend.h. When CONFIG_TPM_WOLF > is enabled, additional wolfTPM-only commands (caps, pcr_print, > firmware_update, firmware_cancel) are added to the table. > > cmd/tpm2-backend.h (new): > Declares all backend function prototypes that both backends must > implement: do_tpm2_device, do_tpm2_info, do_tpm2_init, > do_tpm2_startup, do_tpm2_selftest, do_tpm2_clear, > do_tpm2_pcr_extend, do_tpm2_pcr_read, do_tpm2_get_capability, > do_tpm2_dam_reset, do_tpm2_dam_parameters, do_tpm2_change_auth, > do_tpm2_pcr_setauthpolicy, do_tpm2_pcr_setauthvalue, > do_tpm2_pcr_allocate, plus wolfTPM-only functions. > > cmd/native_tpm2.c (new - native backend): > Contains the original tpm2 command implementations that use > U-Boot's TPM driver model (tpm_api.h, tpm-v2.h). Compiled when > CONFIG_TPM_WOLF is not set. Common commands delegate to > tpm-common.c helpers (do_tpm_device, do_tpm_info, etc.). > > cmd/wolftpm.c (new - wolfTPM backend): > Implements all tpm2 commands using wolfTPM library APIs directly > (wolfTPM2_Init, wolfTPM2_GetCapabilities, wolfTPM2_ExtendPCR, > etc.). Includes Infineon-specific firmware update and cancel > commands. Each command initializes its own WOLFTPM2_DEV instance
This commit should be split so that the refactor is first and the Wolf stuff later. Regards, Simon
