feat(esp32p4): Enable USB-serial/JTAG in flasher stub

esptool/targets/stub_flasher/stub_flasher_32p4.json

@@ -1,8 +1,8 @@
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+    "entry": 1341195918,
+    "text": "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",
     "text_start": 1341194240,
-    "data": "DAD1T+4I8U86CfFPkgnxT2gK8U/UCvFPggrxT7YH8U8kCvFPZArxT6YJ8U9mB/FP2gnxT2YH8U/ICPFPDAnxTzoJ8U+SCfFP2gjxTyAI8U9QCPFP1gjxTywN8U86CfFP7AvxT+AM8U+yBvFPCg3xT7IG8U+yBvFPsgbxT7IG8U+yBvFPsgbxT7IG8U+yBvFPiAvxT7IG8U8IDPFP4AzxTw==",
-    "data_start": 1341533096,
+    "data": "EAD1TwYK8U9WCvFPrgrxT4QL8U/wC/FPngvxT9QI8U9AC/FPgAvxT8IK8U+ECPFP9grxT4QI8U/gCfFPJgrxT1YK8U+uCvFP8gnxTzgJ8U9oCfFP7gnxT0AO8U9WCvFPCA3xTwAO8U/EB/FPJA7xT8QH8U/EB/FPxAfxT8QH8U/EB/FPxAfxT8QH8U/EB/FPpAzxT8QH8U8mDfFPAA7xTw==",
+    "data_start": 1341533100,
     "bss_start": 1341456384
 }

flasher_stub/include/rom_functions.h

@@ -18,11 +18,11 @@ int uart_rx_one_char(uint8_t *ch);
 uint8_t uart_rx_one_char_block();
 int uart_tx_one_char(char ch);
 
-#if ESP32C6 || ESP32H2 || ESP32C5BETA3
+#if ESP32C6 || ESP32H2 || ESP32C5BETA3 || ESP32P4
 /* uart_tx_one_char doesn't send data to USB device serial, needs to be replaced */
 int uart_tx_one_char2(char ch);
 #define uart_tx_one_char(ch) uart_tx_one_char2(ch)
-#endif // ESP32C6 || ESP32H2 || ESP32C5BETA3
+#endif // ESP32C6 || ESP32H2 || ESP32C5BETA3 || ESP32P4
 
 void uart_div_modify(uint32_t uart_no, uint32_t baud_div);
 

flasher_stub/include/soc_support.h

@@ -62,16 +62,17 @@
 #endif // ESP32H2
 
 #ifdef ESP32P4
-// TODO: Add support for USB modes when MP is available
-// #define WITH_USB_JTAG_SERIAL 1
+#define WITH_USB_JTAG_SERIAL 1
+// TODO: Add support for USB OTG when MP is available
 // #define WITH_USB_OTG 1
 #define IS_RISCV 1
 #endif // ESP32P4
 
 // Increase CPU freq to speed up read/write operations over USB
 // Disabled on the S3 due to stability issues, would require dbias adjustment.
 // https://github.com/espressif/esptool/issues/832, https://github.com/espressif/esptool/issues/808
-#define USE_MAX_CPU_FREQ ((WITH_USB_JTAG_SERIAL || WITH_USB_OTG) && !ESP32S3)
+// Disabled for P4 because it is already running on high (360MHz) CPU frequency
+#define USE_MAX_CPU_FREQ ((WITH_USB_JTAG_SERIAL || WITH_USB_OTG) && !ESP32S3 && !ESP32P4)
 
 // Later chips don't support ets_efuse_get_spiconfig.
 #define SUPPORT_CONFIG_SPI (ESP32 || ESP32S2 || ESP32S3 || ESP32S3BETA2 || ESP32C3 || ESP32H2BETA1 || ESP32H2BETA2 || ESP32C6BETA)
@@ -199,6 +200,8 @@
 #define SPI_BASE_REG        0x5008D000 /* SPI peripheral 1, used for SPI flash */
 #define SPI0_BASE_REG       0x5008C000 /* SPI peripheral 0, inner state machine */
 #define GPIO_BASE_REG       0x500E0000
+#define USB_DEVICE_BASE_REG 0x500D2000
+#define DR_REG_LP_WDT_BASE  0x50116000
 #define DR_REG_IO_MUX_BASE  0x500E1000
 #endif
 
@@ -348,6 +351,17 @@
 #define ETS_USB_INUM 17  /* arbitrary level 1 level interrupt */
 #endif // ESP32H2
 
+#if ESP32P4
+#define UART_USB_OTG  5
+#define UART_USB_JTAG_SERIAL  6
+
+#define DR_REG_INTERRUPT_MATRIX_BASE            0x500D6000
+#define INTERRUPT_CORE0_USB_INTR_MAP_REG        (DR_REG_INTERRUPT_MATRIX_BASE + 0x58) /* USB-JTAG-Serial, CORE0_USB_DEVICE_INT_MAP_REG */
+
+#define CLIC_EXT_INTR_NUM_OFFSET 16  /* For CLIC first 16 intrrupts are reserved as internal */
+#define ETS_USB_INUM 17  /* arbitrary level 1 level interrupt */
+#endif
+
 #ifdef WITH_USB_JTAG_SERIAL
 #define USB_DEVICE_INT_ENA_REG          (USB_DEVICE_BASE_REG + 0x010)
 #define USB_DEVICE_INT_CLR_REG          (USB_DEVICE_BASE_REG + 0x014)
@@ -389,7 +403,7 @@
 #define RTC_CNTL_SWD_AUTO_FEED_EN     (1 << 31)
 #endif
 
-#if ESP32C6 || ESP32C5BETA3
+#if ESP32C6 || ESP32C5BETA3 || ESP32P4
 #define RTC_CNTL_WDTCONFIG0_REG       (DR_REG_LP_WDT_BASE + 0x0)   // LP_WDT_RWDT_CONFIG0_REG
 #define RTC_CNTL_WDTWPROTECT_REG      (DR_REG_LP_WDT_BASE + 0x0018)  // LP_WDT_RWDT_WPROTECT_REG
 #define RTC_CNTL_SWD_CONF_REG         (DR_REG_LP_WDT_BASE + 0x001C)  // LP_WDT_SWD_CONFIG_REG

flasher_stub/stub_io.c

@@ -65,7 +65,11 @@ static void stub_configure_rx_uart(void)
 #if WITH_USB_JTAG_SERIAL
   if (stub_uses_usb_jtag_serial()) {
     #if IS_RISCV
-      WRITE_REG(INTERRUPT_CORE0_USB_INTR_MAP_REG, ETS_USB_INUM);  // Route USB interrupt to CPU
+      #if ESP32P4
+        WRITE_REG(INTERRUPT_CORE0_USB_INTR_MAP_REG, ETS_USB_INUM + CLIC_EXT_INTR_NUM_OFFSET);
+      #else
+        WRITE_REG(INTERRUPT_CORE0_USB_INTR_MAP_REG, ETS_USB_INUM);  // Route USB interrupt to CPU
+      #endif
       esprv_intc_int_set_priority(ETS_USB_INUM, 1);
     #else
       WRITE_REG(INTERRUPT_CORE0_USB_DEVICE_INT_MAP_REG, ETS_USB_INUM);