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driver: crypto: SHA: npcx: change to support npcx4

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The pre-alloacted size of the buffer for the SHA ROM API code increases
in npcx4 chip. This commit adds a new property context-buffer-size to
sha0 DT node in npcx9 and npcx4 separately. The driver can pre-allocate
buffer with the correct size based on the property.

Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
This commit is contained in:
Jun Lin 2023-10-04 13:22:41 +08:00 • committed by Fabio Baltieri
commit db8855aaa3
4 changed files with 10 additions and 1 deletions
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2
drivers/crypto/crypto_npcx_sha.c
View file

@ -14,7 +14,7 @@
LOG_MODULE_REGISTER(sha_npcx, CONFIG_CRYPTO_LOG_LEVEL);
#define NPCX_HASH_CAPS_SUPPORT (CAP_SEPARATE_IO_BUFS | CAP_SYNC_OPS)
#define NPCX_SHA256_HANDLE_SIZE 212
#define NPCX_SHA256_HANDLE_SIZE DT_INST_PROP(0, context_buffer_size)
#define NPCX_SHA_MAX_SESSION 1
/* The status code returns from Nuvoton Cryptographic Library ROM APIs */

1
dts/arm/nuvoton/npcx/npcx4.dtsi
View file

@ -292,6 +292,7 @@
sha0: sha@13c {
compatible = "nuvoton,npcx-sha";
reg = <0x13c 0x3c>;
context-buffer-size = <228>;
status = "disabled";
};
};

1
dts/arm/nuvoton/npcx/npcx9.dtsi
View file

@ -269,6 +269,7 @@
sha0: sha@13c {
compatible = "nuvoton,npcx-sha";
reg = <0x13c 0x3c>;
context-buffer-size = <212>;
status = "disabled";
};
};

7
dts/bindings/crypto/nuvoton,npcx-sha.yaml
View file

@ -10,3 +10,10 @@ include: base.yaml
properties:
reg:
required: true
context-buffer-size:
type: int
required: true
description: |
Size of the pre-allocated buffer for the SHA ROM API to store the
intermdiate computation result and final digest.