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Merge branch 'bugfix/rtc_function_needs_disable_usj_pads_esp32s3_v5.0' into 'release/v5.0'

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rtcio: Disable USB Serial JTAG pad when setting pins 19 and 20 as RTC function on ESP32S3 (backport v5.0)

See merge request espressif/esp-idf!20550
This commit is contained in:
morris 2022-10-31 11:57:07 +08:00
commit 20949d444f
1 changed files with 7 additions and 0 deletions
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7
components/hal/esp32s3/include/hal/rtc_io_ll.h
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@ -19,6 +19,7 @@
#include "hal/gpio_types.h"
#include "soc/io_mux_reg.h"
#include "soc/usb_serial_jtag_reg.h"
#include "soc/usb_serial_jtag_struct.h"
#ifdef __cplusplus
extern "C" {
@ -52,6 +53,10 @@ typedef enum {
static inline void rtcio_ll_function_select(int rtcio_num, rtcio_ll_func_t func)
{
if (func == RTCIO_FUNC_RTC) {
// Disable USB Serial JTAG if pin 19 or pin 20 needs to select the rtc function
if (rtcio_num == rtc_io_num_map[USB_DM_GPIO_NUM] || rtcio_num == rtc_io_num_map[USB_DP_GPIO_NUM]) {
USB_SERIAL_JTAG.conf0.usb_pad_enable = 0;
}
SENS.sar_peri_clk_gate_conf.iomux_clk_en = 1;
// 0: GPIO connected to digital GPIO module. 1: GPIO connected to analog RTC module.
SET_PERI_REG_MASK(rtc_io_desc[rtcio_num].reg, (rtc_io_desc[rtcio_num].mux));
@ -60,6 +65,8 @@ static inline void rtcio_ll_function_select(int rtcio_num, rtcio_ll_func_t func)
} else if (func == RTCIO_FUNC_DIGITAL) {
CLEAR_PERI_REG_MASK(rtc_io_desc[rtcio_num].reg, (rtc_io_desc[rtcio_num].mux));
SENS.sar_peri_clk_gate_conf.iomux_clk_en = 0;
// USB Serial JTAG pad re-enable won't be done here (it requires both DM and DP pins not in rtc function)
// Instead, USB_SERIAL_JTAG_USB_PAD_ENABLE needs to be guaranteed to be set in usb_serial_jtag driver
}
}