tpm: Add a driver for Loongson TPM device

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Loongson Security Engine supports random number generation, hash,
symmetric encryption and asymmetric encryption. Based on these
encryption functions, TPM2 have been implemented in the Loongson
Security Engine firmware. This driver is responsible for copying data
into the memory visible to the firmware and receiving data from the
firmware.

Co-developed-by: Yinggang Gu <guyinggang@loongson.cn>
Signed-off-by: Yinggang Gu <guyinggang@loongson.cn>
Signed-off-by: Qunqin Zhao <zhaoqunqin@loongson.cn>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/r/20250705072045.1067-4-zhaoqunqin@loongson.cn
Signed-off-by: Lee Jones <lee@kernel.org>

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Qunqin Zhao 2025-07-05 15:20:44 +08:00 • committed by Lee Jones

parent 766b2d724c

commit 5c83b07df9

3 changed files with 94 additions and 0 deletions

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9

drivers/char/tpm/Kconfig

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1

drivers/char/tpm/Makefile

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84

drivers/char/tpm/tpm_loongson.c

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