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esp32c3: Fix GPIO Output on pins 18 and 19 USB/JTAG

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This commit is contained in:
Alan C. Assis
2021-11-09 11:17:38 -03:00
committed by Xiang Xiao
parent 5dfb2713f6
commit b8c33e585e
1 changed files with 20 additions and 0 deletions
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arch/risc-v/src/esp32c3/esp32c3_gpio.c
+20
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@@ -38,9 +38,17 @@
#include "esp32c3_irq.h" #include "esp32c3_irq.h"
#include "hardware/esp32c3_iomux.h" #include "hardware/esp32c3_iomux.h"
#include "hardware/esp32c3_gpio.h" #include "hardware/esp32c3_gpio.h"
#include "hardware/esp32c3_usb_serial_jtag.h"
#include "esp32c3_gpio.h" #include "esp32c3_gpio.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define USB_JTAG_DM 18
#define USB_JTAG_DP 19
/**************************************************************************** /****************************************************************************
* Private Data * Private Data
****************************************************************************/ ****************************************************************************/
@@ -128,6 +136,18 @@ int esp32c3_configgpio(int pin, gpio_pinattr_t attr)
func = 0; func = 0;
cntrl = 0; cntrl = 0;
/* If pin 18 or 19 then disable the USB/JTAG function and pull-up */
if ((pin == USB_JTAG_DM) || (pin == USB_JTAG_DP))
{
uint32_t regval;
regval = getreg32(USB_SERIAL_JTAG_CONF0_REG);
regval &= ~(USB_SERIAL_JTAG_USB_PAD_ENABLE |
USB_SERIAL_JTAG_DP_PULLUP);
putreg32(regval, USB_SERIAL_JTAG_CONF0_REG);
}
/* Handle input pins */ /* Handle input pins */
if ((attr & INPUT) != 0) if ((attr & INPUT) != 0)