mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
106 lines
2.5 KiB
C
106 lines
2.5 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include "sdkconfig.h"
|
|
#include <sys/param.h>
|
|
#include "soc/soc_caps.h"
|
|
#include "hal/efuse_ll.h"
|
|
#include "hal/assert.h"
|
|
#include "hal/efuse_hal.h"
|
|
#include "soc/syscon_reg.h"
|
|
|
|
|
|
uint32_t efuse_hal_get_chip_revision(void)
|
|
{
|
|
uint8_t eco_bit0 = efuse_ll_get_chip_ver_rev1();
|
|
uint8_t eco_bit1 = efuse_ll_get_chip_ver_rev2();
|
|
uint8_t eco_bit2 = (REG_READ(SYSCON_DATE_REG) & 0x80000000) >> 31;
|
|
uint32_t combine_value = (eco_bit2 << 2) | (eco_bit1 << 1) | eco_bit0;
|
|
uint32_t chip_ver = 0;
|
|
switch (combine_value) {
|
|
case 0:
|
|
chip_ver = 0;
|
|
break;
|
|
case 1:
|
|
chip_ver = 1;
|
|
break;
|
|
case 3:
|
|
chip_ver = 2;
|
|
break;
|
|
#if CONFIG_IDF_ENV_FPGA
|
|
case 4: /* Empty efuses, but SYSCON_DATE_REG bit is set */
|
|
chip_ver = 3;
|
|
break;
|
|
#endif // CONFIG_IDF_ENV_FPGA
|
|
case 7:
|
|
chip_ver = 3;
|
|
break;
|
|
default:
|
|
chip_ver = 0;
|
|
break;
|
|
}
|
|
return chip_ver;
|
|
}
|
|
|
|
uint32_t efuse_hal_get_rated_freq_mhz(void)
|
|
{
|
|
//Check if ESP32 is rated for a CPU frequency of 160MHz only
|
|
if (efuse_ll_get_chip_cpu_freq_rated() && efuse_ll_get_chip_cpu_freq_low()) {
|
|
return 160;
|
|
}
|
|
return 240;
|
|
}
|
|
|
|
/******************* eFuse control functions *************************/
|
|
|
|
void efuse_hal_set_timing(uint32_t apb_freq_mhz)
|
|
{
|
|
uint32_t clk_sel0;
|
|
uint32_t clk_sel1;
|
|
uint32_t dac_clk_div;
|
|
if (apb_freq_mhz <= 26) {
|
|
clk_sel0 = 250;
|
|
clk_sel1 = 255;
|
|
dac_clk_div = 52;
|
|
} else if (apb_freq_mhz <= 40) {
|
|
clk_sel0 = 160;
|
|
clk_sel1 = 255;
|
|
dac_clk_div = 80;
|
|
} else {
|
|
clk_sel0 = 80;
|
|
clk_sel1 = 128;
|
|
dac_clk_div = 100;
|
|
}
|
|
efuse_ll_set_dac_clk_div(dac_clk_div);
|
|
efuse_ll_set_dac_clk_sel0(clk_sel0);
|
|
efuse_ll_set_dac_clk_sel1(clk_sel1);
|
|
}
|
|
|
|
void efuse_hal_read(void)
|
|
{
|
|
efuse_ll_set_conf_read_op_code();
|
|
efuse_ll_set_read_cmd();
|
|
while (efuse_ll_get_cmd() != 0) { };
|
|
}
|
|
|
|
void efuse_hal_clear_program_registers(void)
|
|
{
|
|
efuse_ll_set_conf_read_op_code();
|
|
}
|
|
|
|
void efuse_hal_program(uint32_t block)
|
|
{
|
|
(void) block;
|
|
// Permanently update values written to the efuse write registers
|
|
efuse_ll_set_conf_write_op_code();
|
|
efuse_ll_set_pgm_cmd();
|
|
while (efuse_ll_get_cmd() != 0) { };
|
|
|
|
efuse_hal_read();
|
|
}
|
|
|
|
/******************* eFuse control functions *************************/
|