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fix(rng): avoid clearing PMU_PERIF_I2C_RSTB in random disable API for C6

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This configuration bit is required for ADC operation as well and hence
should not be cleared in the RNG API sequence.

Ideally, the ADC driver should take care of initializing this bit but
still the RNG layer change is required because of interleaved API usage
scenario described in following linked issue.

Closes https://github.com/espressif/esp-idf/issues/14124
Closes https://github.com/espressif/esp-idf/issues/14280
This commit is contained in:
Mahavir Jain 2024-08-12 08:26:05 +05:30
parent 0c817d9238
commit f38f77a7fc
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1 changed files with 0 additions and 3 deletions
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3
components/bootloader_support/src/bootloader_random_esp32c6.c
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@ -88,9 +88,6 @@ void bootloader_random_disable(void)
REGI2C_WRITE_MASK(I2C_SAR_ADC, ADC_SARADC1_ENCAL_REF_ADDR, 0);
REGI2C_WRITE_MASK(I2C_SAR_ADC, ADC_SARADC2_ENCAL_REF_ADDR, 0);
// Revert PMU_RF_PWC_REG to it's initial value
CLEAR_PERI_REG_MASK(PMU_RF_PWC_REG, PMU_PERIF_I2C_RSTB);
// disable ADC_CTRL_CLK (SAR ADC function clock)
REG_WRITE(PCR_SARADC_CLKM_CONF_REG, 0x00404000);