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bootloader_support: add esp32-s3 initial support

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This commit is contained in:
morris
2020-07-29 22:03:46 +08:00
parent b845bb5787
commit 6225932201
36 changed files with 1550 additions and 77 deletions
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22
components/bootloader_support/src/bootloader_clock_init.c
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@@ -24,10 +24,13 @@
#elif CONFIG_IDF_TARGET_ESP32S2
#include "esp32s2/rom/rtc.h"
#define CPU_RESET_REASON RTC_SW_CPU_RESET
#elif CONFIG_IDF_TARGET_ESP32S3
#define CPU_RESET_REASON RTC_SW_CPU_RESET
#include "esp32s3/rom/rtc.h"
#endif
#include "esp_rom_uart.h"
void bootloader_clock_configure(void)
__attribute__((weak)) void bootloader_clock_configure(void)
{
// ROM bootloader may have put a lot of text into UART0 FIFO.
// Wait for it to be printed.
@@ -38,7 +41,7 @@ void bootloader_clock_configure(void)
/* Set CPU to 80MHz. Keep other clocks unmodified. */
int cpu_freq_mhz = 80;
#if CONFIG_IDF_TARGET_ESP32
/* On ESP32 rev 0, switching to 80/160 MHz if clock was previously set to
* 240 MHz may cause the chip to lock up (see section 3.5 of the errata
@@ -51,23 +54,24 @@ void bootloader_clock_configure(void)
cpu_freq_mhz = 240;
}
#endif
if (rtc_clk_apb_freq_get() < APB_CLK_FREQ || rtc_get_reset_reason(0) != CPU_RESET_REASON) {
rtc_clk_config_t clk_cfg = RTC_CLK_CONFIG_DEFAULT();
#if CONFIG_IDF_TARGET_ESP32
#if CONFIG_IDF_TARGET_ESP32
clk_cfg.xtal_freq = CONFIG_ESP32_XTAL_FREQ;
#endif
#endif
/* ESP32-S2 doesn't have XTAL_FREQ choice, always 40MHz */
clk_cfg.cpu_freq_mhz = cpu_freq_mhz;
clk_cfg.slow_freq = rtc_clk_slow_freq_get();
clk_cfg.fast_freq = rtc_clk_fast_freq_get();
rtc_clk_init(clk_cfg);
/* As a slight optimization, if 32k XTAL was enabled in sdkconfig, we enable
* it here. Usually it needs some time to start up, so we amortize at least
* part of the start up time by enabling 32k XTAL early.
* App startup code will wait until the oscillator has started up.
*/
}
/* As a slight optimization, if 32k XTAL was enabled in sdkconfig, we enable
* it here. Usually it needs some time to start up, so we amortize at least
* part of the start up time by enabling 32k XTAL early.
* App startup code will wait until the oscillator has started up.
*/
#if CONFIG_ESP_SYSTEM_RTC_EXT_XTAL
if (!rtc_clk_32k_enabled()) {
rtc_clk_32k_bootstrap(CONFIG_ESP_SYSTEM_RTC_EXT_XTAL_BOOTSTRAP_CYCLES);