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h2/clk_gate: Clear reset signal of ECDSA peripheral before enabling SHA, RSA or ECC

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This commit is contained in:
Sachin Parekh
2023-03-21 10:04:17 +05:30
parent d2940c5ff3
commit e26018d8ee
1 changed files with 8 additions and 2 deletions
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10
components/hal/esp32h2/include/hal/clk_gate_ll.h
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@@ -141,6 +141,10 @@ static inline uint32_t periph_ll_get_rst_en_mask(periph_module_t periph, bool en
case PERIPH_TEMPSENSOR_MODULE: case PERIPH_TEMPSENSOR_MODULE:
return PCR_TSENS_RST_EN; return PCR_TSENS_RST_EN;
case PERIPH_ECC_MODULE: case PERIPH_ECC_MODULE:
if (enable == true) {
// Clear reset on ECDSA, otherwise ECC is held in reset
CLEAR_PERI_REG_MASK(PCR_ECDSA_CONF_REG, PCR_ECDSA_RST_EN);
}
return PCR_ECC_RST_EN; return PCR_ECC_RST_EN;
case PERIPH_AES_MODULE: case PERIPH_AES_MODULE:
if (enable == true) { if (enable == true) {
@@ -150,15 +154,17 @@ static inline uint32_t periph_ll_get_rst_en_mask(periph_module_t periph, bool en
return PCR_AES_RST_EN; return PCR_AES_RST_EN;
case PERIPH_SHA_MODULE: case PERIPH_SHA_MODULE:
if (enable == true) { if (enable == true) {
// Clear reset on digital signature and HMAC, otherwise SHA is held in reset // Clear reset on digital signature, HMAC, and ECDSA, otherwise SHA is held in reset
CLEAR_PERI_REG_MASK(PCR_DS_CONF_REG, PCR_DS_RST_EN); CLEAR_PERI_REG_MASK(PCR_DS_CONF_REG, PCR_DS_RST_EN);
CLEAR_PERI_REG_MASK(PCR_HMAC_CONF_REG, PCR_HMAC_RST_EN); CLEAR_PERI_REG_MASK(PCR_HMAC_CONF_REG, PCR_HMAC_RST_EN);
CLEAR_PERI_REG_MASK(PCR_ECDSA_CONF_REG, PCR_ECDSA_RST_EN);
} }
return PCR_SHA_RST_EN; return PCR_SHA_RST_EN;
case PERIPH_RSA_MODULE: case PERIPH_RSA_MODULE:
if (enable == true) { if (enable == true) {
// Clear reset on digital signature, otherwise RSA is held in reset // Clear reset on digital signature, and ECDSA, otherwise RSA is held in reset
CLEAR_PERI_REG_MASK(PCR_DS_CONF_REG, PCR_DS_RST_EN); CLEAR_PERI_REG_MASK(PCR_DS_CONF_REG, PCR_DS_RST_EN);
CLEAR_PERI_REG_MASK(PCR_ECDSA_CONF_REG, PCR_ECDSA_RST_EN);
} }
return PCR_RSA_RST_EN; return PCR_RSA_RST_EN;
case PERIPH_HMAC_MODULE: case PERIPH_HMAC_MODULE: