diff options
Diffstat (limited to 'board/cr50/dcrypto/dcrypto_regs.h')
| -rw-r--r-- | board/cr50/dcrypto/dcrypto_regs.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/board/cr50/dcrypto/dcrypto_regs.h b/board/cr50/dcrypto/dcrypto_regs.h new file mode 100644 index 0000000000..85ea57bc95 --- /dev/null +++ b/board/cr50/dcrypto/dcrypto_regs.h @@ -0,0 +1,82 @@ +/* Copyright 2021 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ +#ifndef __EC_FIPS_MODULE_REGS_H +#define __EC_FIPS_MODULE_REGS_H + +/** + * This header file contains H1 crypto device register tables defined + * as structs. This allows more efficient code generation compared to + * using GREG() macro. The root cause is that with GREG compiler can't + * always deduce that next register address can be calculated from + * previous one already loaded in register by adding a small constant, + * thus producing inefficient code to load address first and spill + * registers. Access made as struct like: + * + * static volatile struct keymgr_sha *reg_keymgr_sha = + * (void *)(GC_KEYMGR_BASE_ADDR + GC_KEYMGR_SHA_CFG_MSGLEN_LO_OFFSET); + * + * reg_keymgr_sha->itop = 0; + * reg_keymgr_sha->trig = GC_KEYMGR_SHA_TRIG_TRIG_RESET_MASK; + * + * becomes more compact and efficient. + */ +#include "common.h" + +#ifdef __cplusplus +extern "C" { +#endif +#include "registers.h" + + + +/** + * SHA/HMAC part of KEYMGR starting offset 0x400 + */ +struct keymgr_sha { + uint32_t msglen_lo; /* KEYMGR_SHA_CFG_MSGLEN_LO 0x400 */ + uint32_t msglen_hi; /* KEYMGR_SHA_CFG_MSGLEN_HI 0x404 */ + uint32_t cfg_en; /* KEYMGR_SHA_CFG_EN 0x408 */ + uint32_t wr_en; /* KEYMGR_SHA_CFG_WR_EN 0x40c */ + uint32_t trig; /* KEYMGR_SHA_TRIG 0x410 */ + const uint32_t _pad1[11]; + union { + uint32_t fifo_u32; /* KEYMGR_SHA_INPUT_FIFO 0x440 */ + uint8_t fifo_u8; /* KEYMGR_SHA_INPUT_FIFO 0x440 */ + }; + + uint32_t h[8]; /* KEYMGR_SHA_STS_H0 .. H7 */ + uint32_t key[8]; /* KEYMGR_SHA_KEY_W0 .. W7 */ + const uint32_t sts; /* KEYMGR_SHA_STS */ + const uint32_t itcr; /* KEYMGR_SHA_ITCR */ + uint32_t itop; /* KEYMGR_SHA_ITOP */ + uint32_t use_hidden_key; /* KEYMGR_SHA_USE_HIDDEN_KEY */ + uint32_t use_cert; /* KEYMGR_SHA_USE_CERT */ + uint32_t cert_override; /* KEYMGR_SHA_CERT_OVERRIDE */ + uint32_t rand_stall; /* KEYMGR_SHA_RAND_STALL_CTL */ + uint32_t count_state; /* KEYMGR_SHA_EXECUTE_COUNT_STATE */ + uint32_t count_max; /* KEYMGR_SHA_EXECUTE_COUNT_MAX */ + uint32_t revoke_ctrl[3]; /* KEYMGR_CERT_REVOKE_CTRL0 .. CTRL3 */ +}; + +BUILD_ASSERT(offsetof(struct keymgr_sha, trig) == + GC_KEYMGR_SHA_TRIG_OFFSET - GC_KEYMGR_SHA_CFG_MSGLEN_LO_OFFSET); + +BUILD_ASSERT(offsetof(struct keymgr_sha, fifo_u32) == + GC_KEYMGR_SHA_INPUT_FIFO_OFFSET - + GC_KEYMGR_SHA_CFG_MSGLEN_LO_OFFSET); + +BUILD_ASSERT(offsetof(struct keymgr_sha, h) == + GC_KEYMGR_SHA_STS_H0_OFFSET - GC_KEYMGR_SHA_CFG_MSGLEN_LO_OFFSET); + +BUILD_ASSERT(offsetof(struct keymgr_sha, rand_stall) == + GC_KEYMGR_SHA_RAND_STALL_CTL_OFFSET - + GC_KEYMGR_SHA_CFG_MSGLEN_LO_OFFSET); + +#ifdef __cplusplus +} +#endif + +#endif /* __EC_FIPS_MODULE_REGS_H */ + |