feat(tpm): add tpm drivers and framework
Add tpm2 drivers to tf-a with adequate framework
-implement a fifo spi interface that works
with discrete tpm chip.
-implement tpm command layer interfaces that are used
to initialize, start and make measurements and
close the interface.
-tpm drivers are built using their own make file
to allow for ease in porting across platforms,
and across different interfaces.
Signed-off-by: Tushar Khandelwal <tushar.khandelwal@arm.com>
Signed-off-by: Abhi Singh <abhi.singh@arm.com>
Change-Id: Ie1a189f45c80f26f4dea16c3bd71b1503709e0ea
diff --git a/include/drivers/tpm/tpm2_chip.h b/include/drivers/tpm/tpm2_chip.h
new file mode 100644
index 0000000..ce052ad
--- /dev/null
+++ b/include/drivers/tpm/tpm2_chip.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2025, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#ifndef TPM2_CHIP_H
+#define TPM2_CHIP_H
+
+#define BYTE U(0x1)
+#define WORD U(0x2)
+#define DWORD U(0x4)
+
+struct tpm_chip_data {
+ uint8_t locality;
+ unsigned long timeout_msec_a, timeout_msec_b;
+ unsigned long timeout_msec_c, timeout_msec_d;
+ uint16_t address;
+};
+
+#endif /* TPM2_CHIP_H */