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Merge branch 'bugfix/efuse_esp_efuse_utility_burn_efuses' into 'release/v4.3'

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efuse: Fix burn operation when data was written directly to regs

See merge request espressif/esp-idf!18886
This commit is contained in:
Mahavir Jain 2022-07-07 21:12:24 +08:00
commit 9bbe2fc041
1 changed files with 15 additions and 0 deletions
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15
components/efuse/src/esp32/esp_efuse_utility.c
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@ -61,6 +61,7 @@ const uint32_t start_write_addr[] = {
};
static void apply_repeat_encoding(const uint8_t *in_bytes, uint32_t *out_words, size_t in_bytes_len);
static void unite_write_mass_blocks_and_wr_regs(void);
// Update Efuse timing configuration
static esp_err_t esp_efuse_set_timing(void)
@ -147,6 +148,9 @@ esp_err_t esp_efuse_utility_burn_efuses(void)
if (esp_efuse_set_timing() != ESP_OK) {
ESP_LOGE(TAG, "Efuse fields are not burnt");
} else {
// Support the (old) use case where data is written directly to EFUSE_BLKx_WDATA0_REG without using the eFuse API.
unite_write_mass_blocks_and_wr_regs();
// Permanently update values written to the efuse write registers
// It is necessary to process blocks in the order from MAX-> EFUSE_BLK0, because EFUSE_BLK0 has protection bits for other blocks.
for (int num_block = EFUSE_BLK_MAX - 1; num_block >= EFUSE_BLK0; num_block--) {
@ -262,6 +266,17 @@ esp_err_t esp_efuse_utility_apply_34_encoding(const uint8_t *in_bytes, uint32_t
}
#ifndef CONFIG_EFUSE_VIRTUAL
static void unite_write_mass_blocks_and_wr_regs(void)
{
for (int num_block = EFUSE_BLK_MAX - 1; num_block >= EFUSE_BLK0; num_block--) {
uint32_t wr_reg = start_write_addr[num_block];
for (uint32_t addr_wr_block = range_write_addr_blocks[num_block].start; addr_wr_block <= range_write_addr_blocks[num_block].end; addr_wr_block += 4) {
REG_WRITE(addr_wr_block, REG_READ(addr_wr_block) | REG_READ(wr_reg));
wr_reg += 4;
}
}
esp_efuse_utility_clear_program_registers();
}
static void apply_repeat_encoding(const uint8_t *in_bytes, uint32_t *out_words, size_t in_bytes_len)
{