src/drivers/tpm/cr50.h

   1 /* SPDX-License-Identifier: BSD-3-Clause */
   2
   3 #ifndef __DRIVERS_TPM_CR50_H__
   4 #define __DRIVERS_TPM_CR50_H__
   5
   6 #include <types.h>
   7
   8 /* Structure describing the elements of GSC firmware version. */
   9 struct cr50_firmware_version {
  10         int epoch;
  11         int major;
  12         int minor;
  13 };
  14
  15 /* Indicates whether Cr50 ready pulses are guaranteed to be at least 100us. */
  16 bool cr50_is_long_interrupt_pulse_enabled(void);
  17
  18 /* Get the GSC firmware version information. */
  19 enum cb_err cr50_get_firmware_version(struct cr50_firmware_version *version);
  20
  21 /* Set the BOARD_CFG register depending on Cr50 Kconfigs */
  22 enum cb_err cr50_set_board_cfg(void);
  23
  24 /* Wait for IRQ to indicate the TPM is ready */
  25 enum cb_err cr50_wait_tpm_ready(void);
  26
  27 /* Check TPM IRQ and clear it, returns 1 when IRQ pending or 0 when not */
  28 int cr50_plat_irq_status(void);
  29
  30 #endif /* __DRIVERS_TPM_CR50_H__ */