From a79ffeb7643bb9c7e7af69f29fe2cfe7ded837d8 Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@tannewt.org>
Date: Wed, 5 Jan 2022 13:47:01 -0800
Subject: [PATCH 1/6] Add Raspberry Pi Zero W and Zero 2 W

These are different Broadcom chips. The peripherals are essentially
the same. The main differences are:
* The CPU(s)
* The interrupt controller
* The peripheral base address (but not the peripherals that we use)
---
 .../boards/raspberrypi_cm4/board.h            |  0
 .../bcm2835/boards/raspberrypi_cm4/board.mk   |  9 +++++
 .../bcm2835/boards/raspberrypi_zero2w/board.h | 38 +++++++++++++++++++
 .../boards/raspberrypi_zero2w/board.mk        |  9 +++++
 .../bcm2835/boards/raspberrypi_zero_w/board.h | 38 +++++++++++++++++++
 .../boards/raspberrypi_zero_w/board.mk        |  7 ++++
 hw/bsp/{raspberrypi4 => bcm2835}/family.c     | 32 +++++++++++-----
 hw/bsp/{raspberrypi4 => bcm2835}/family.mk    | 24 ++++--------
 .../boards/raspberrypi_cm4/board.mk           |  1 -
 hw/mcu/broadcom                               |  2 +-
 src/device/dcd_attr.h                         |  2 +-
 src/portable/synopsys/dwc2/dcd_dwc2.c         |  5 ++-
 src/portable/synopsys/dwc2/dwc2_bcm.h         |  3 +-
 src/tusb_option.h                             |  2 +
 14 files changed, 139 insertions(+), 33 deletions(-)
 rename hw/bsp/{raspberrypi4 => bcm2835}/boards/raspberrypi_cm4/board.h (100%)
 create mode 100644 hw/bsp/bcm2835/boards/raspberrypi_cm4/board.mk
 create mode 100644 hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.h
 create mode 100644 hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.mk
 create mode 100644 hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.h
 create mode 100644 hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.mk
 rename hw/bsp/{raspberrypi4 => bcm2835}/family.c (82%)
 rename hw/bsp/{raspberrypi4 => bcm2835}/family.mk (61%)
 delete mode 100644 hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.mk

diff --git a/hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.h b/hw/bsp/bcm2835/boards/raspberrypi_cm4/board.h
similarity index 100%
rename from hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.h
rename to hw/bsp/bcm2835/boards/raspberrypi_cm4/board.h
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_cm4/board.mk b/hw/bsp/bcm2835/boards/raspberrypi_cm4/board.mk
new file mode 100644
index 00000000..b4fa3dff
--- /dev/null
+++ b/hw/bsp/bcm2835/boards/raspberrypi_cm4/board.mk
@@ -0,0 +1,9 @@
+CFLAGS += -mcpu=cortex-a72 \
+          -DBCM_VERSION=2711 \
+          -DCFG_TUSB_MCU=OPT_MCU_BCM2711
+
+CROSS_COMPILE = aarch64-none-elf-
+
+SUFFIX = 8
+
+INC += $(TOP)/lib/CMSIS_5/CMSIS/Core_A/Include
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.h b/hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.h
new file mode 100644
index 00000000..1d3565d5
--- /dev/null
+++ b/hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.h
@@ -0,0 +1,38 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020, Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* BOARD_H_ */
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.mk b/hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.mk
new file mode 100644
index 00000000..f43e12e3
--- /dev/null
+++ b/hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.mk
@@ -0,0 +1,9 @@
+CFLAGS += -mcpu=cortex-a53 \
+          -DBCM_VERSION=2837 \
+          -DCFG_TUSB_MCU=OPT_MCU_BCM2837
+
+CROSS_COMPILE = aarch64-none-elf-
+
+SUFFIX = 8
+
+INC += $(TOP)/lib/CMSIS_5/CMSIS/Core_A/Include
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.h b/hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.h
new file mode 100644
index 00000000..1d3565d5
--- /dev/null
+++ b/hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.h
@@ -0,0 +1,38 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020, Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* BOARD_H_ */
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.mk b/hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.mk
new file mode 100644
index 00000000..79d7096c
--- /dev/null
+++ b/hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.mk
@@ -0,0 +1,7 @@
+CFLAGS += -mcpu=arm1176jzf-s \
+          -DBCM_VERSION=2835 \
+          -DCFG_TUSB_MCU=OPT_MCU_BCM2835
+
+CROSS_COMPILE = arm-none-eabi-
+
+SUFFIX = 
diff --git a/hw/bsp/raspberrypi4/family.c b/hw/bsp/bcm2835/family.c
similarity index 82%
rename from hw/bsp/raspberrypi4/family.c
rename to hw/bsp/bcm2835/family.c
index ba0b2700..f7a11fb4 100644
--- a/hw/bsp/raspberrypi4/family.c
+++ b/hw/bsp/bcm2835/family.c
@@ -27,8 +27,9 @@
 #include "bsp/board.h"
 #include "board.h"
 
+#include "broadcom/cpu.h"
+#include "broadcom/gpio.h"
 #include "broadcom/interrupts.h"
-#include "broadcom/io.h"
 #include "broadcom/mmu.h"
 #include "broadcom/caches.h"
 #include "broadcom/vcmailbox.h"
@@ -37,9 +38,8 @@
 #define LED_PIN               18
 #define LED_STATE_ON          1
 
-// Button
-#define BUTTON_PIN            16
-#define BUTTON_STATE_ACTIVE   0
+// UART TX
+#define UART_TX_PIN           14
 
 //--------------------------------------------------------------------+
 // Forward USB interrupt events to TinyUSB IRQ Handler
@@ -62,14 +62,26 @@ void board_init(void)
   init_caches();
 
   // LED
-  gpio_initOutputPinWithPullNone(LED_PIN);
+  gpio_set_function(LED_PIN, GPIO_FUNCTION_OUTPUT);
+  gpio_set_pull(LED_PIN, BP_PULL_NONE);
   board_led_write(true);
 
-  // Button
-  // TODO
-
   // Uart
-  uart_init();
+  COMPLETE_MEMORY_READS;
+  AUX->ENABLES_b.UART_1 = true;
+
+  UART1->IER = 0;
+  UART1->CNTL = 0;
+  UART1->LCR_b.DATA_SIZE = UART1_LCR_DATA_SIZE_MODE_8BIT;
+  UART1->MCR = 0;
+  UART1->IER = 0;
+
+  uint32_t source_clock = vcmailbox_get_clock_rate_measured(VCMAILBOX_CLOCK_CORE);
+  UART1->BAUD = ((source_clock / (115200 * 8)) - 1);
+  UART1->CNTL |= UART1_CNTL_TX_ENABLE_Msk;
+  COMPLETE_MEMORY_READS;
+
+  gpio_set_function(UART_TX_PIN, GPIO_FUNCTION_ALT5);
 
   // Turn on USB peripheral.
   vcmailbox_set_power_state(VCMAILBOX_DEVICE_USB_HCD, true);
@@ -87,7 +99,7 @@ void board_init(void)
 
 void board_led_write(bool state)
 {
-  gpio_setPinOutputBool(LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+  gpio_set_value(LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
 }
 
 uint32_t board_button_read(void)
diff --git a/hw/bsp/raspberrypi4/family.mk b/hw/bsp/bcm2835/family.mk
similarity index 61%
rename from hw/bsp/raspberrypi4/family.mk
rename to hw/bsp/bcm2835/family.mk
index c65070a7..6de97f58 100644
--- a/hw/bsp/raspberrypi4/family.mk
+++ b/hw/bsp/bcm2835/family.mk
@@ -3,18 +3,14 @@ DEPS_SUBMODULES += $(MCU_DIR)
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 
-CC = clang
-
 CFLAGS += \
-	-mcpu=cortex-a72 \
 	-Wall \
 	-O0 \
 	-ffreestanding \
 	-nostdlib \
 	-nostartfiles \
-	-std=c17 \
 	-mgeneral-regs-only \
-	-DCFG_TUSB_MCU=OPT_MCU_BCM2711
+	-std=c17
 
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=cast-qual
@@ -22,30 +18,26 @@ CFLAGS += -Wno-error=cast-qual
 SRC_C += \
 	src/portable/synopsys/dwc2/dcd_dwc2.c \
 	$(MCU_DIR)/broadcom/gen/interrupt_handlers.c \
+	$(MCU_DIR)/broadcom/gpio.c \
 	$(MCU_DIR)/broadcom/interrupts.c \
-	$(MCU_DIR)/broadcom/io.c \
 	$(MCU_DIR)/broadcom/mmu.c \
 	$(MCU_DIR)/broadcom/caches.c \
 	$(MCU_DIR)/broadcom/vcmailbox.c
 
-
-CROSS_COMPILE = aarch64-none-elf-
-
 SKIP_NANOLIB = 1
 
-LD_FILE = $(MCU_DIR)/broadcom/link.ld
+LD_FILE = $(MCU_DIR)/broadcom/link$(SUFFIX).ld
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(MCU_DIR) \
-	$(TOP)/lib/CMSIS_5/CMSIS/Core_A/Include
+	$(TOP)/$(MCU_DIR)
 
-SRC_S += $(MCU_DIR)/broadcom/boot.S
+SRC_S += $(MCU_DIR)/broadcom/boot$(SUFFIX).S
 
-$(BUILD)/kernel8.img: $(BUILD)/$(PROJECT).elf
+$(BUILD)/kernel$(SUFFIX).img: $(BUILD)/$(PROJECT).elf
 	$(OBJCOPY) -O binary $^ $@
 
 # Copy to kernel to netboot drive or SD card
 # Change destinaation to fit your need
-flash: $(BUILD)/kernel8.img
-	$(CP) $< /home/$(USER)/Documents/code/pi4_tinyusb/boot_cpy
+flash: $(BUILD)/kernel$(SUFFIX).img
+	@$(CP) $< /home/$(USER)/Documents/code/pi_tinyusb/boot_cpy
diff --git a/hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.mk b/hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.mk
deleted file mode 100644
index 89734247..00000000
--- a/hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.mk
+++ /dev/null
@@ -1 +0,0 @@
-CFLAGS += -DBCM_VERSION=2711
diff --git a/hw/mcu/broadcom b/hw/mcu/broadcom
index 5bff1d5e..08370086 160000
--- a/hw/mcu/broadcom
+++ b/hw/mcu/broadcom
@@ -1 +1 @@
-Subproject commit 5bff1d5e02c37c38ee1e5cf3f7fe82fdc7e1517e
+Subproject commit 08370086080759ed54ac1136d62d2ad24c6fa267
diff --git a/src/device/dcd_attr.h b/src/device/dcd_attr.h
index 3c5dadaf..feba82ea 100644
--- a/src/device/dcd_attr.h
+++ b/src/device/dcd_attr.h
@@ -190,7 +190,7 @@
   #define DCD_ATTR_ENDPOINT_MAX   4
 
 //------------- Broadcom -------------//
-#elif TU_CHECK_MCU(OPT_MCU_BCM2711)
+#elif TU_CHECK_MCU(OPT_MCU_BCM2711, OPT_MCU_BCM2835, OPT_MCU_BCM2837)
   #define DCD_ATTR_ENDPOINT_MAX   8
 
 //------------- Broadcom -------------//
diff --git a/src/portable/synopsys/dwc2/dcd_dwc2.c b/src/portable/synopsys/dwc2/dcd_dwc2.c
index bb21b3dc..18861174 100644
--- a/src/portable/synopsys/dwc2/dcd_dwc2.c
+++ b/src/portable/synopsys/dwc2/dcd_dwc2.c
@@ -33,7 +33,8 @@
 #if TUSB_OPT_DEVICE_ENABLED && \
     ( defined(DCD_ATTR_DWC2_STM32) || \
       TU_CHECK_MCU(OPT_MCU_ESP32S2, OPT_MCU_ESP32S3, OPT_MCU_GD32VF103) || \
-      TU_CHECK_MCU(OPT_MCU_EFM32GG, OPT_MCU_BCM2711, OPT_MCU_XMC4000) )
+      TU_CHECK_MCU(OPT_MCU_EFM32GG, OPT_MCU_BCM2711, OPT_MCU_BCM2835) || \
+      TU_CHECK_MCU(OPT_MCU_BCM2837, OPT_MCU_XMC4000) )
 
 #include "device/dcd.h"
 #include "dwc2_type.h"
@@ -44,7 +45,7 @@
   #include "dwc2_esp32.h"
 #elif TU_CHECK_MCU(OPT_MCU_GD32VF103)
   #include "dwc2_gd32.h"
-#elif TU_CHECK_MCU(OPT_MCU_BCM2711)
+#elif TU_CHECK_MCU(OPT_MCU_BCM2711, OPT_MCU_BCM2835, OPT_MCU_BCM2837)
   #include "dwc2_bcm.h"
 #elif TU_CHECK_MCU(OPT_MCU_EFM32GG)
   #include "dwc2_efm32.h"
diff --git a/src/portable/synopsys/dwc2/dwc2_bcm.h b/src/portable/synopsys/dwc2/dwc2_bcm.h
index 353bc21e..14194e75 100644
--- a/src/portable/synopsys/dwc2/dwc2_bcm.h
+++ b/src/portable/synopsys/dwc2/dwc2_bcm.h
@@ -31,6 +31,7 @@
  extern "C" {
 #endif
 
+#include "broadcom/defines.h"
 #include "broadcom/interrupts.h"
 #include "broadcom/caches.h"
 
@@ -47,7 +48,6 @@ static inline void dwc2_dcd_int_enable(uint8_t rhport)
 {
   (void) rhport;
   BP_EnableIRQ(USB_IRQn);
-  __asm__ volatile("isb"); // needed if TIMER1 IRQ is not enabled !?
 }
 
 TU_ATTR_ALWAYS_INLINE
@@ -55,7 +55,6 @@ static inline void dwc2_dcd_int_disable (uint8_t rhport)
 {
   (void) rhport;
   BP_DisableIRQ(USB_IRQn);
-  __asm__ volatile("isb"); // needed if TIMER1 IRQ is not enabled !?
 }
 
 static inline void dwc2_remote_wakeup_delay(void)
diff --git a/src/tusb_option.h b/src/tusb_option.h
index 2edd310f..c7c7b245 100644
--- a/src/tusb_option.h
+++ b/src/tusb_option.h
@@ -132,6 +132,8 @@
 
 // Broadcom
 #define OPT_MCU_BCM2711          1700 ///< Broadcom BCM2711
+#define OPT_MCU_BCM2835          1701 ///< Broadcom BCM2835
+#define OPT_MCU_BCM2837          1702 ///< Broadcom BCM2837
 
 // Infineon
 #define OPT_MCU_XMC4000          1800 ///< Infineon XMC4000

From 84e2df51be5961177a63c6842a4130bb9b8978ac Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@tannewt.org>
Date: Wed, 5 Jan 2022 14:11:39 -0800
Subject: [PATCH 2/6] Split by compiler for testing

---
 .github/workflows/build_aarch64.yml           |   2 +-
 .github/workflows/build_arm.yml               |   3 +-
 .../boards/raspberrypi_zero_w}/board.h        |   0
 .../boards/raspberrypi_zero_w/board.mk        |   2 -
 hw/bsp/{bcm2835 => broadcom_32bit}/family.c   |   0
 hw/bsp/{bcm2835 => broadcom_32bit}/family.mk  |   2 +
 .../boards/raspberrypi_cm4}/board.h           |   0
 .../boards/raspberrypi_cm4/board.mk           |   6 -
 .../boards/raspberrypi_zero2w}/board.h        |   0
 .../boards/raspberrypi_zero2w/board.mk        |   6 -
 hw/bsp/broadcom_64bit/family.c                | 156 ++++++++++++++++++
 hw/bsp/broadcom_64bit/family.mk               |  46 ++++++
 12 files changed, 207 insertions(+), 16 deletions(-)
 rename hw/bsp/{bcm2835/boards/raspberrypi_cm4 => broadcom_32bit/boards/raspberrypi_zero_w}/board.h (100%)
 rename hw/bsp/{bcm2835 => broadcom_32bit}/boards/raspberrypi_zero_w/board.mk (78%)
 rename hw/bsp/{bcm2835 => broadcom_32bit}/family.c (100%)
 rename hw/bsp/{bcm2835 => broadcom_32bit}/family.mk (96%)
 rename hw/bsp/{bcm2835/boards/raspberrypi_zero2w => broadcom_64bit/boards/raspberrypi_cm4}/board.h (100%)
 rename hw/bsp/{bcm2835 => broadcom_64bit}/boards/raspberrypi_cm4/board.mk (51%)
 rename hw/bsp/{bcm2835/boards/raspberrypi_zero_w => broadcom_64bit/boards/raspberrypi_zero2w}/board.h (100%)
 rename hw/bsp/{bcm2835 => broadcom_64bit}/boards/raspberrypi_zero2w/board.mk (51%)
 create mode 100644 hw/bsp/broadcom_64bit/family.c
 create mode 100644 hw/bsp/broadcom_64bit/family.mk

diff --git a/.github/workflows/build_aarch64.yml b/.github/workflows/build_aarch64.yml
index 0cc7a5de..8cf7852b 100644
--- a/.github/workflows/build_aarch64.yml
+++ b/.github/workflows/build_aarch64.yml
@@ -18,7 +18,7 @@ jobs:
       matrix:
         family:
         # Alphabetical order
-        - 'raspberrypi4'
+        - 'broadcom_64bit'
     steps:
     - name: Setup Python
       uses: actions/setup-python@v2
diff --git a/.github/workflows/build_arm.yml b/.github/workflows/build_arm.yml
index dc4d9fcf..177f1076 100644
--- a/.github/workflows/build_arm.yml
+++ b/.github/workflows/build_arm.yml
@@ -39,6 +39,7 @@ jobs:
       matrix:
         family:
         # Alphabetical order
+        - 'broadcom_32bit'
         - 'imxrt'
         - 'lpc15'
         - 'lpc18'
@@ -114,7 +115,7 @@ jobs:
         done
 
   # ---------------------------------------
-  # Build all no-family (opharned) boards
+  # Build all no-family (orphaned) boards
   # ---------------------------------------
   build-board:
     runs-on: ubuntu-latest
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_cm4/board.h b/hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.h
similarity index 100%
rename from hw/bsp/bcm2835/boards/raspberrypi_cm4/board.h
rename to hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.h
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.mk b/hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.mk
similarity index 78%
rename from hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.mk
rename to hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.mk
index 79d7096c..52e9e45c 100644
--- a/hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.mk
+++ b/hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.mk
@@ -2,6 +2,4 @@ CFLAGS += -mcpu=arm1176jzf-s \
           -DBCM_VERSION=2835 \
           -DCFG_TUSB_MCU=OPT_MCU_BCM2835
 
-CROSS_COMPILE = arm-none-eabi-
-
 SUFFIX = 
diff --git a/hw/bsp/bcm2835/family.c b/hw/bsp/broadcom_32bit/family.c
similarity index 100%
rename from hw/bsp/bcm2835/family.c
rename to hw/bsp/broadcom_32bit/family.c
diff --git a/hw/bsp/bcm2835/family.mk b/hw/bsp/broadcom_32bit/family.mk
similarity index 96%
rename from hw/bsp/bcm2835/family.mk
rename to hw/bsp/broadcom_32bit/family.mk
index 6de97f58..4ff57474 100644
--- a/hw/bsp/bcm2835/family.mk
+++ b/hw/bsp/broadcom_32bit/family.mk
@@ -12,6 +12,8 @@ CFLAGS += \
 	-mgeneral-regs-only \
 	-std=c17
 
+CROSS_COMPILE = arm-none-eabi-
+
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=cast-qual
 
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.h b/hw/bsp/broadcom_64bit/boards/raspberrypi_cm4/board.h
similarity index 100%
rename from hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.h
rename to hw/bsp/broadcom_64bit/boards/raspberrypi_cm4/board.h
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_cm4/board.mk b/hw/bsp/broadcom_64bit/boards/raspberrypi_cm4/board.mk
similarity index 51%
rename from hw/bsp/bcm2835/boards/raspberrypi_cm4/board.mk
rename to hw/bsp/broadcom_64bit/boards/raspberrypi_cm4/board.mk
index b4fa3dff..5706b831 100644
--- a/hw/bsp/bcm2835/boards/raspberrypi_cm4/board.mk
+++ b/hw/bsp/broadcom_64bit/boards/raspberrypi_cm4/board.mk
@@ -1,9 +1,3 @@
 CFLAGS += -mcpu=cortex-a72 \
           -DBCM_VERSION=2711 \
           -DCFG_TUSB_MCU=OPT_MCU_BCM2711
-
-CROSS_COMPILE = aarch64-none-elf-
-
-SUFFIX = 8
-
-INC += $(TOP)/lib/CMSIS_5/CMSIS/Core_A/Include
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.h b/hw/bsp/broadcom_64bit/boards/raspberrypi_zero2w/board.h
similarity index 100%
rename from hw/bsp/bcm2835/boards/raspberrypi_zero_w/board.h
rename to hw/bsp/broadcom_64bit/boards/raspberrypi_zero2w/board.h
diff --git a/hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.mk b/hw/bsp/broadcom_64bit/boards/raspberrypi_zero2w/board.mk
similarity index 51%
rename from hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.mk
rename to hw/bsp/broadcom_64bit/boards/raspberrypi_zero2w/board.mk
index f43e12e3..3060b057 100644
--- a/hw/bsp/bcm2835/boards/raspberrypi_zero2w/board.mk
+++ b/hw/bsp/broadcom_64bit/boards/raspberrypi_zero2w/board.mk
@@ -1,9 +1,3 @@
 CFLAGS += -mcpu=cortex-a53 \
           -DBCM_VERSION=2837 \
           -DCFG_TUSB_MCU=OPT_MCU_BCM2837
-
-CROSS_COMPILE = aarch64-none-elf-
-
-SUFFIX = 8
-
-INC += $(TOP)/lib/CMSIS_5/CMSIS/Core_A/Include
diff --git a/hw/bsp/broadcom_64bit/family.c b/hw/bsp/broadcom_64bit/family.c
new file mode 100644
index 00000000..f7a11fb4
--- /dev/null
+++ b/hw/bsp/broadcom_64bit/family.c
@@ -0,0 +1,156 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "bsp/board.h"
+#include "board.h"
+
+#include "broadcom/cpu.h"
+#include "broadcom/gpio.h"
+#include "broadcom/interrupts.h"
+#include "broadcom/mmu.h"
+#include "broadcom/caches.h"
+#include "broadcom/vcmailbox.h"
+
+// LED
+#define LED_PIN               18
+#define LED_STATE_ON          1
+
+// UART TX
+#define UART_TX_PIN           14
+
+//--------------------------------------------------------------------+
+// Forward USB interrupt events to TinyUSB IRQ Handler
+//--------------------------------------------------------------------+
+void USB_IRQHandler(void)
+{
+  tud_int_handler(0);
+}
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+void board_init(void)
+{
+  setup_mmu_flat_map();
+  init_caches();
+
+  // LED
+  gpio_set_function(LED_PIN, GPIO_FUNCTION_OUTPUT);
+  gpio_set_pull(LED_PIN, BP_PULL_NONE);
+  board_led_write(true);
+
+  // Uart
+  COMPLETE_MEMORY_READS;
+  AUX->ENABLES_b.UART_1 = true;
+
+  UART1->IER = 0;
+  UART1->CNTL = 0;
+  UART1->LCR_b.DATA_SIZE = UART1_LCR_DATA_SIZE_MODE_8BIT;
+  UART1->MCR = 0;
+  UART1->IER = 0;
+
+  uint32_t source_clock = vcmailbox_get_clock_rate_measured(VCMAILBOX_CLOCK_CORE);
+  UART1->BAUD = ((source_clock / (115200 * 8)) - 1);
+  UART1->CNTL |= UART1_CNTL_TX_ENABLE_Msk;
+  COMPLETE_MEMORY_READS;
+
+  gpio_set_function(UART_TX_PIN, GPIO_FUNCTION_ALT5);
+
+  // Turn on USB peripheral.
+  vcmailbox_set_power_state(VCMAILBOX_DEVICE_USB_HCD, true);
+
+  // Timer 1/1024 second tick
+  SYSTMR->CS_b.M1 = 1;
+  SYSTMR->C1 = SYSTMR->CLO + 977;
+  BP_EnableIRQ(TIMER_1_IRQn);
+
+  BP_SetPriority(USB_IRQn, 0x00);
+  BP_ClearPendingIRQ(USB_IRQn);
+  BP_EnableIRQ(USB_IRQn);
+  BP_EnableIRQs();
+}
+
+void board_led_write(bool state)
+{
+  gpio_set_value(LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+}
+
+uint32_t board_button_read(void)
+{
+  return 0;
+}
+
+int board_uart_read(uint8_t* buf, int len)
+{
+  (void) buf; (void) len;
+  return 0;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+  for (int i = 0; i < len; i++) {
+    const char* cbuf = buf;
+    while (!UART1->STAT_b.TX_READY) {}
+    if (cbuf[i] == '\n') {
+      UART1->IO = '\r';
+      while (!UART1->STAT_b.TX_READY) {}
+    }
+    UART1->IO = cbuf[i];
+  }
+  return len;
+}
+
+#if CFG_TUSB_OS  == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+
+void TIMER_1_IRQHandler(void)
+{
+  system_ticks++;
+  SYSTMR->C1 += 977;
+  SYSTMR->CS_b.M1 = 1;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif
+
+void HardFault_Handler (void)
+{
+  // asm("bkpt");
+}
+
+// Required by __libc_init_array in startup code if we are compiling using
+// -nostdlib/-nostartfiles.
+void _init(void)
+{
+
+}
diff --git a/hw/bsp/broadcom_64bit/family.mk b/hw/bsp/broadcom_64bit/family.mk
new file mode 100644
index 00000000..72392673
--- /dev/null
+++ b/hw/bsp/broadcom_64bit/family.mk
@@ -0,0 +1,46 @@
+MCU_DIR = hw/mcu/broadcom
+DEPS_SUBMODULES += $(MCU_DIR)
+
+include $(TOP)/$(BOARD_PATH)/board.mk
+
+CFLAGS += \
+	-Wall \
+	-O0 \
+	-ffreestanding \
+	-nostdlib \
+	-nostartfiles \
+	-mgeneral-regs-only \
+	-std=c17
+
+CROSS_COMPILE = aarch64-none-elf-
+
+# mcu driver cause following warnings
+CFLAGS += -Wno-error=cast-qual
+
+SRC_C += \
+	src/portable/synopsys/dwc2/dcd_dwc2.c \
+	$(MCU_DIR)/broadcom/gen/interrupt_handlers.c \
+	$(MCU_DIR)/broadcom/gpio.c \
+	$(MCU_DIR)/broadcom/interrupts.c \
+	$(MCU_DIR)/broadcom/mmu.c \
+	$(MCU_DIR)/broadcom/caches.c \
+	$(MCU_DIR)/broadcom/vcmailbox.c
+
+SKIP_NANOLIB = 1
+
+LD_FILE = $(MCU_DIR)/broadcom/link8.ld
+
+INC += \
+	$(TOP)/$(BOARD_PATH) \
+	$(TOP)/$(MCU_DIR) \
+	$(TOP)/lib/CMSIS_5/CMSIS/Core_A/Include
+
+SRC_S += $(MCU_DIR)/broadcom/boot8.S
+
+$(BUILD)/kernel8.img: $(BUILD)/$(PROJECT).elf
+	$(OBJCOPY) -O binary $^ $@
+
+# Copy to kernel to netboot drive or SD card
+# Change destinaation to fit your need
+flash: $(BUILD)/kernel8.img
+	@$(CP) $< /home/$(USER)/Documents/code/pi_tinyusb/boot_cpy

From 4fe0a30ec7bf254c839a76da9be3a2968d1690db Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@tannewt.org>
Date: Wed, 5 Jan 2022 14:33:24 -0800
Subject: [PATCH 3/6] Skip net and freertos examples

---
 examples/device/cdc_msc_freertos/.skip.MCU_BCM2835       | 0
 examples/device/cdc_msc_freertos/.skip.MCU_BCM2837       | 0
 examples/device/hid_composite_freertos/.skip.MCU_BCM2835 | 0
 examples/device/hid_composite_freertos/.skip.MCU_BCM2837 | 0
 examples/device/net_lwip_webserver/.skip.MCU_BCM2835     | 1 +
 examples/device/net_lwip_webserver/.skip.MCU_BCM2837     | 1 +
 hw/bsp/board_mcu.h                                       | 5 ++++-
 tools/build_family.py                                    | 2 +-
 8 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_BCM2835
 create mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_BCM2837
 create mode 100644 examples/device/hid_composite_freertos/.skip.MCU_BCM2835
 create mode 100644 examples/device/hid_composite_freertos/.skip.MCU_BCM2837
 create mode 100644 examples/device/net_lwip_webserver/.skip.MCU_BCM2835
 create mode 100644 examples/device/net_lwip_webserver/.skip.MCU_BCM2837

diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_BCM2835 b/examples/device/cdc_msc_freertos/.skip.MCU_BCM2835
new file mode 100644
index 00000000..e69de29b
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_BCM2837 b/examples/device/cdc_msc_freertos/.skip.MCU_BCM2837
new file mode 100644
index 00000000..e69de29b
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_BCM2835 b/examples/device/hid_composite_freertos/.skip.MCU_BCM2835
new file mode 100644
index 00000000..e69de29b
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_BCM2837 b/examples/device/hid_composite_freertos/.skip.MCU_BCM2837
new file mode 100644
index 00000000..e69de29b
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_BCM2835 b/examples/device/net_lwip_webserver/.skip.MCU_BCM2835
new file mode 100644
index 00000000..bdc68f5d
--- /dev/null
+++ b/examples/device/net_lwip_webserver/.skip.MCU_BCM2835
@@ -0,0 +1 @@
+tinyusb/lib/lwip/src/include/lwip/arch.h:202:13: error: conflicting types for 'ssize_t'
\ No newline at end of file
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_BCM2837 b/examples/device/net_lwip_webserver/.skip.MCU_BCM2837
new file mode 100644
index 00000000..bdc68f5d
--- /dev/null
+++ b/examples/device/net_lwip_webserver/.skip.MCU_BCM2837
@@ -0,0 +1 @@
+tinyusb/lib/lwip/src/include/lwip/arch.h:202:13: error: conflicting types for 'ssize_t'
\ No newline at end of file
diff --git a/hw/bsp/board_mcu.h b/hw/bsp/board_mcu.h
index f8b5c061..b911e1e5 100644
--- a/hw/bsp/board_mcu.h
+++ b/hw/bsp/board_mcu.h
@@ -32,7 +32,7 @@
 
 //--------------------------------------------------------------------+
 // Low Level MCU header include. TinyUSB stack and example should be
-// platform independent and mostly doens't need to include this file.
+// platform independent and mostly doesn't need to include this file.
 // However there are still certain situation where this file is needed:
 // - FreeRTOSConfig.h to set up correct clock and NVIC interrupts for ARM Cortex
 // - SWO logging for Cortex M with ITM_SendChar() / ITM_ReceiveChar()
@@ -146,6 +146,9 @@
 #elif CFG_TUSB_MCU == OPT_MCU_TM4C123
   #include "TM4C123.h"
 
+#elif TU_CHECK_MCU(OPT_MCU_BCM2711, OPT_MCU_BCM2835, OPT_MCU_BCM2837)
+  // no header needed
+
 #else
   #error "Missing MCU header"
 #endif
diff --git a/tools/build_family.py b/tools/build_family.py
index 4195c259..ccbcfa3f 100644
--- a/tools/build_family.py
+++ b/tools/build_family.py
@@ -38,7 +38,7 @@ all_examples.sort()
 # If family are not specified in arguments, build all
 all_families = []
 for entry in os.scandir("hw/bsp"):
-    if entry.is_dir() and os.path.isdir(entry.path + "/boards") and entry.name != "esp32s2" and entry.name != "esp32s3":
+    if entry.is_dir() and os.path.isdir(entry.path + "/boards") and entry.name not in ("esp32s2", "esp32s3"):
         all_families.append(entry.name)
             
 filter_with_input(all_families)

From 7b27b8f498a185d8a7c1bea5dac8f43e7030ebd7 Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@tannewt.org>
Date: Wed, 5 Jan 2022 15:44:23 -0800
Subject: [PATCH 4/6] Unify skip and only logic for build scripts

And switch to a single file that can include mcu, family or board.
---
 .gitignore                                    |  2 +
 .../audio_4_channel_mic/.skip.MCU_SAMD11      |  0
 .../audio_4_channel_mic/.skip.MCU_SAME5X      |  0
 .../device/audio_4_channel_mic/.skip.MCU_SAMG |  0
 examples/device/audio_4_channel_mic/skip.txt  |  3 +
 examples/device/audio_test/.skip.MCU_SAMD11   |  0
 examples/device/audio_test/.skip.MCU_SAME5X   |  0
 examples/device/audio_test/.skip.MCU_SAMG     |  0
 examples/device/audio_test/skip.txt           |  3 +
 examples/device/cdc_msc/.skip.MCU_SAMD11      |  0
 examples/device/cdc_msc/skip.txt              |  1 +
 .../device/cdc_msc_freertos/.skip.MCU_BCM2711 |  0
 .../device/cdc_msc_freertos/.skip.MCU_BCM2835 |  0
 .../device/cdc_msc_freertos/.skip.MCU_BCM2837 |  0
 .../device/cdc_msc_freertos/.skip.MCU_CXD56   |  0
 .../cdc_msc_freertos/.skip.MCU_GD32VF103      |  0
 .../cdc_msc_freertos/.skip.MCU_MKL25ZXX       |  0
 .../cdc_msc_freertos/.skip.MCU_MSP430x5xx     |  0
 .../device/cdc_msc_freertos/.skip.MCU_RP2040  |  0
 .../device/cdc_msc_freertos/.skip.MCU_SAMD11  |  0
 .../device/cdc_msc_freertos/.skip.MCU_SAMX7X  |  0
 .../.skip.MCU_VALENTYUSB_EPTRI                |  0
 examples/device/cdc_msc_freertos/skip.txt     | 10 +++
 examples/device/dfu/.skip.MCU_TM4C123         |  4 --
 examples/device/dfu/skip.txt                  |  1 +
 .../dynamic_configuration/.skip.MCU_SAMD11    |  0
 .../device/dynamic_configuration/skip.txt     |  1 +
 .../hid_composite_freertos/.skip.MCU_BCM2711  |  0
 .../hid_composite_freertos/.skip.MCU_BCM2835  |  0
 .../hid_composite_freertos/.skip.MCU_BCM2837  |  0
 .../hid_composite_freertos/.skip.MCU_CXD56    |  0
 .../.skip.MCU_GD32VF103                       |  0
 .../.skip.MCU_MSP430x5xx                      |  0
 .../hid_composite_freertos/.skip.MCU_RP2040   |  0
 .../hid_composite_freertos/.skip.MCU_SAMD11   |  0
 .../hid_composite_freertos/.skip.MCU_SAMX7X   |  0
 .../.skip.MCU_VALENTYUSB_EPTRI                |  0
 .../device/hid_composite_freertos/skip.txt    |  9 +++
 .../device/msc_dual_lun/.skip.MCU_MKL25ZXX    |  0
 examples/device/msc_dual_lun/.skip.MCU_SAMD11 |  0
 examples/device/msc_dual_lun/skip.txt         |  2 +
 .../net_lwip_webserver/.skip.MCU_BCM2711      |  1 -
 .../net_lwip_webserver/.skip.MCU_BCM2835      |  1 -
 .../net_lwip_webserver/.skip.MCU_BCM2837      |  1 -
 .../net_lwip_webserver/.skip.MCU_LPC11UXX     |  0
 .../net_lwip_webserver/.skip.MCU_LPC13XX      |  0
 .../net_lwip_webserver/.skip.MCU_MKL25ZXX     |  0
 .../net_lwip_webserver/.skip.MCU_MSP430x5xx   |  1 -
 .../net_lwip_webserver/.skip.MCU_NUC121       |  0
 .../net_lwip_webserver/.skip.MCU_SAMD11       |  0
 .../net_lwip_webserver/.skip.MCU_STM32L0      |  0
 examples/device/net_lwip_webserver/skip.txt   | 10 +++
 .../device/uac2_headset/.skip.MCU_LPC11UXX    |  0
 .../device/uac2_headset/.skip.MCU_LPC13XX     |  0
 examples/device/uac2_headset/.skip.MCU_NUC121 |  0
 examples/device/uac2_headset/.skip.MCU_SAMD11 |  0
 examples/device/uac2_headset/.skip.MCU_SAME5X |  0
 examples/device/uac2_headset/.skip.MCU_SAMG   |  0
 examples/device/uac2_headset/skip.txt         |  6 ++
 .../device/video_capture/.skip.MCU_MSP430x5xx |  1 -
 .../device/video_capture/.skip.MCU_SAMD11     |  0
 examples/device/video_capture/skip.txt        |  2 +
 .../host/cdc_msc_hid/.only.MCU_LPC175X_6X     |  0
 .../host/cdc_msc_hid/.only.MCU_LPC177X_8X     |  0
 examples/host/cdc_msc_hid/.only.MCU_LPC18XX   |  0
 examples/host/cdc_msc_hid/.only.MCU_LPC40XX   |  0
 examples/host/cdc_msc_hid/.only.MCU_LPC43XX   |  0
 .../host/cdc_msc_hid/.only.MCU_MIMXRT10XX     |  0
 examples/host/cdc_msc_hid/.only.MCU_MSP432E4  |  0
 examples/host/cdc_msc_hid/.only.MCU_RP2040    |  0
 examples/host/cdc_msc_hid/only.txt            |  8 +++
 .../host/hid_controller/.only.MCU_LPC175X_6X  |  0
 .../host/hid_controller/.only.MCU_LPC177X_8X  |  0
 .../host/hid_controller/.only.MCU_LPC18XX     |  0
 .../host/hid_controller/.only.MCU_LPC40XX     |  0
 .../host/hid_controller/.only.MCU_LPC43XX     |  0
 .../host/hid_controller/.only.MCU_MIMXRT10XX  |  0
 .../host/hid_controller/.only.MCU_MSP432E4    |  0
 examples/host/hid_controller/.only.MCU_RP2040 |  0
 examples/host/hid_controller/only.txt         |  8 +++
 .../.skip.device.net_lwip_webserver           |  0
 tools/build_board.py                          | 31 +---------
 tools/build_esp32sx.py                        |  7 +--
 tools/build_family.py                         | 44 +------------
 tools/build_utils.py                          | 61 +++++++++++++++++++
 85 files changed, 136 insertions(+), 82 deletions(-)
 delete mode 100644 examples/device/audio_4_channel_mic/.skip.MCU_SAMD11
 delete mode 100644 examples/device/audio_4_channel_mic/.skip.MCU_SAME5X
 delete mode 100644 examples/device/audio_4_channel_mic/.skip.MCU_SAMG
 create mode 100644 examples/device/audio_4_channel_mic/skip.txt
 delete mode 100644 examples/device/audio_test/.skip.MCU_SAMD11
 delete mode 100644 examples/device/audio_test/.skip.MCU_SAME5X
 delete mode 100644 examples/device/audio_test/.skip.MCU_SAMG
 create mode 100644 examples/device/audio_test/skip.txt
 delete mode 100644 examples/device/cdc_msc/.skip.MCU_SAMD11
 create mode 100644 examples/device/cdc_msc/skip.txt
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_BCM2711
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_BCM2835
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_BCM2837
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_CXD56
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_GD32VF103
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_MKL25ZXX
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_MSP430x5xx
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_RP2040
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_SAMD11
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_SAMX7X
 delete mode 100644 examples/device/cdc_msc_freertos/.skip.MCU_VALENTYUSB_EPTRI
 create mode 100644 examples/device/cdc_msc_freertos/skip.txt
 delete mode 100644 examples/device/dfu/.skip.MCU_TM4C123
 create mode 100644 examples/device/dfu/skip.txt
 delete mode 100644 examples/device/dynamic_configuration/.skip.MCU_SAMD11
 create mode 100644 examples/device/dynamic_configuration/skip.txt
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_BCM2711
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_BCM2835
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_BCM2837
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_CXD56
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_GD32VF103
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_MSP430x5xx
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_RP2040
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_SAMD11
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_SAMX7X
 delete mode 100644 examples/device/hid_composite_freertos/.skip.MCU_VALENTYUSB_EPTRI
 create mode 100644 examples/device/hid_composite_freertos/skip.txt
 delete mode 100644 examples/device/msc_dual_lun/.skip.MCU_MKL25ZXX
 delete mode 100644 examples/device/msc_dual_lun/.skip.MCU_SAMD11
 create mode 100644 examples/device/msc_dual_lun/skip.txt
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_BCM2711
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_BCM2835
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_BCM2837
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_LPC11UXX
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_LPC13XX
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_MKL25ZXX
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_MSP430x5xx
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_NUC121
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_SAMD11
 delete mode 100644 examples/device/net_lwip_webserver/.skip.MCU_STM32L0
 create mode 100644 examples/device/net_lwip_webserver/skip.txt
 delete mode 100644 examples/device/uac2_headset/.skip.MCU_LPC11UXX
 delete mode 100644 examples/device/uac2_headset/.skip.MCU_LPC13XX
 delete mode 100644 examples/device/uac2_headset/.skip.MCU_NUC121
 delete mode 100644 examples/device/uac2_headset/.skip.MCU_SAMD11
 delete mode 100644 examples/device/uac2_headset/.skip.MCU_SAME5X
 delete mode 100644 examples/device/uac2_headset/.skip.MCU_SAMG
 create mode 100644 examples/device/uac2_headset/skip.txt
 delete mode 100644 examples/device/video_capture/.skip.MCU_MSP430x5xx
 delete mode 100644 examples/device/video_capture/.skip.MCU_SAMD11
 create mode 100644 examples/device/video_capture/skip.txt
 delete mode 100644 examples/host/cdc_msc_hid/.only.MCU_LPC175X_6X
 delete mode 100644 examples/host/cdc_msc_hid/.only.MCU_LPC177X_8X
 delete mode 100644 examples/host/cdc_msc_hid/.only.MCU_LPC18XX
 delete mode 100644 examples/host/cdc_msc_hid/.only.MCU_LPC40XX
 delete mode 100644 examples/host/cdc_msc_hid/.only.MCU_LPC43XX
 delete mode 100644 examples/host/cdc_msc_hid/.only.MCU_MIMXRT10XX
 delete mode 100644 examples/host/cdc_msc_hid/.only.MCU_MSP432E4
 delete mode 100644 examples/host/cdc_msc_hid/.only.MCU_RP2040
 create mode 100644 examples/host/cdc_msc_hid/only.txt
 delete mode 100644 examples/host/hid_controller/.only.MCU_LPC175X_6X
 delete mode 100644 examples/host/hid_controller/.only.MCU_LPC177X_8X
 delete mode 100644 examples/host/hid_controller/.only.MCU_LPC18XX
 delete mode 100644 examples/host/hid_controller/.only.MCU_LPC40XX
 delete mode 100644 examples/host/hid_controller/.only.MCU_LPC43XX
 delete mode 100644 examples/host/hid_controller/.only.MCU_MIMXRT10XX
 delete mode 100644 examples/host/hid_controller/.only.MCU_MSP432E4
 delete mode 100644 examples/host/hid_controller/.only.MCU_RP2040
 create mode 100644 examples/host/hid_controller/only.txt
 delete mode 100644 hw/bsp/samd21/boards/curiosity_nano/.skip.device.net_lwip_webserver
 create mode 100644 tools/build_utils.py

diff --git a/.gitignore b/.gitignore
index f7adff4c..87a5faa8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,5 @@ cov-int
 # cppcheck build directories
 *-build-dir
 /_bin/
+__pycache__
+
diff --git a/examples/device/audio_4_channel_mic/.skip.MCU_SAMD11 b/examples/device/audio_4_channel_mic/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/audio_4_channel_mic/.skip.MCU_SAME5X b/examples/device/audio_4_channel_mic/.skip.MCU_SAME5X
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/audio_4_channel_mic/.skip.MCU_SAMG b/examples/device/audio_4_channel_mic/.skip.MCU_SAMG
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/audio_4_channel_mic/skip.txt b/examples/device/audio_4_channel_mic/skip.txt
new file mode 100644
index 00000000..ae9b57f1
--- /dev/null
+++ b/examples/device/audio_4_channel_mic/skip.txt
@@ -0,0 +1,3 @@
+mcu:SAMD11
+mcu:SAME5X
+mcu:SAMG
\ No newline at end of file
diff --git a/examples/device/audio_test/.skip.MCU_SAMD11 b/examples/device/audio_test/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/audio_test/.skip.MCU_SAME5X b/examples/device/audio_test/.skip.MCU_SAME5X
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/audio_test/.skip.MCU_SAMG b/examples/device/audio_test/.skip.MCU_SAMG
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/audio_test/skip.txt b/examples/device/audio_test/skip.txt
new file mode 100644
index 00000000..ae9b57f1
--- /dev/null
+++ b/examples/device/audio_test/skip.txt
@@ -0,0 +1,3 @@
+mcu:SAMD11
+mcu:SAME5X
+mcu:SAMG
\ No newline at end of file
diff --git a/examples/device/cdc_msc/.skip.MCU_SAMD11 b/examples/device/cdc_msc/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc/skip.txt b/examples/device/cdc_msc/skip.txt
new file mode 100644
index 00000000..d844feae
--- /dev/null
+++ b/examples/device/cdc_msc/skip.txt
@@ -0,0 +1 @@
+mcu:SAMD11
\ No newline at end of file
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_BCM2711 b/examples/device/cdc_msc_freertos/.skip.MCU_BCM2711
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_BCM2835 b/examples/device/cdc_msc_freertos/.skip.MCU_BCM2835
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_BCM2837 b/examples/device/cdc_msc_freertos/.skip.MCU_BCM2837
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_CXD56 b/examples/device/cdc_msc_freertos/.skip.MCU_CXD56
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_GD32VF103 b/examples/device/cdc_msc_freertos/.skip.MCU_GD32VF103
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_MKL25ZXX b/examples/device/cdc_msc_freertos/.skip.MCU_MKL25ZXX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_MSP430x5xx b/examples/device/cdc_msc_freertos/.skip.MCU_MSP430x5xx
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_RP2040 b/examples/device/cdc_msc_freertos/.skip.MCU_RP2040
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_SAMD11 b/examples/device/cdc_msc_freertos/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_SAMX7X b/examples/device/cdc_msc_freertos/.skip.MCU_SAMX7X
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_VALENTYUSB_EPTRI b/examples/device/cdc_msc_freertos/.skip.MCU_VALENTYUSB_EPTRI
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/cdc_msc_freertos/skip.txt b/examples/device/cdc_msc_freertos/skip.txt
new file mode 100644
index 00000000..7137b78a
--- /dev/null
+++ b/examples/device/cdc_msc_freertos/skip.txt
@@ -0,0 +1,10 @@
+mcu:CXD56
+mcu:MSP430x5xx
+mcu:SAMD11
+mcu:VALENTYUSB_EPTRI
+mcu:MKL25ZXX
+mcu:RP2040
+mcu:SAMX7X
+mcu:GD32VF103
+family:broadcom_64bit
+family:broadcom_32bit
\ No newline at end of file
diff --git a/examples/device/dfu/.skip.MCU_TM4C123 b/examples/device/dfu/.skip.MCU_TM4C123
deleted file mode 100644
index 6260e6e2..00000000
--- a/examples/device/dfu/.skip.MCU_TM4C123
+++ /dev/null
@@ -1,4 +0,0 @@
-LINK _build/ek-tm4c123gxl/dfu.elf
-/home/runner/cache/toolchain/xpack-arm-none-eabi-gcc-10.2.1-1.1/bin/../lib/gcc/arm-none-eabi/10.2.1/../../../../arm-none-eabi/bin/ld: section .ARM.exidx.text._close LMA [0000000000002980,0000000000002987] overlaps section .data LMA [0000000000002980,0000000000002a03]
-collect2: error: ld returned 1 exit status
-make: *** [../../rules.mk:94: _build/ek-tm4c123gxl/dfu.elf] Error 1
\ No newline at end of file
diff --git a/examples/device/dfu/skip.txt b/examples/device/dfu/skip.txt
new file mode 100644
index 00000000..2c9d9490
--- /dev/null
+++ b/examples/device/dfu/skip.txt
@@ -0,0 +1 @@
+mcu:TM4C123
\ No newline at end of file
diff --git a/examples/device/dynamic_configuration/.skip.MCU_SAMD11 b/examples/device/dynamic_configuration/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/dynamic_configuration/skip.txt b/examples/device/dynamic_configuration/skip.txt
new file mode 100644
index 00000000..d844feae
--- /dev/null
+++ b/examples/device/dynamic_configuration/skip.txt
@@ -0,0 +1 @@
+mcu:SAMD11
\ No newline at end of file
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_BCM2711 b/examples/device/hid_composite_freertos/.skip.MCU_BCM2711
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_BCM2835 b/examples/device/hid_composite_freertos/.skip.MCU_BCM2835
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_BCM2837 b/examples/device/hid_composite_freertos/.skip.MCU_BCM2837
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_CXD56 b/examples/device/hid_composite_freertos/.skip.MCU_CXD56
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_GD32VF103 b/examples/device/hid_composite_freertos/.skip.MCU_GD32VF103
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_MSP430x5xx b/examples/device/hid_composite_freertos/.skip.MCU_MSP430x5xx
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_RP2040 b/examples/device/hid_composite_freertos/.skip.MCU_RP2040
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_SAMD11 b/examples/device/hid_composite_freertos/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_SAMX7X b/examples/device/hid_composite_freertos/.skip.MCU_SAMX7X
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_VALENTYUSB_EPTRI b/examples/device/hid_composite_freertos/.skip.MCU_VALENTYUSB_EPTRI
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/hid_composite_freertos/skip.txt b/examples/device/hid_composite_freertos/skip.txt
new file mode 100644
index 00000000..e64187fd
--- /dev/null
+++ b/examples/device/hid_composite_freertos/skip.txt
@@ -0,0 +1,9 @@
+mcu:CXD56
+mcu:MSP430x5xx
+mcu:SAMD11
+mcu:VALENTYUSB_EPTRI
+mcu:RP2040
+mcu:SAMX7X
+mcu:GD32VF103
+family:broadcom_64bit
+family:broadcom_32bit
\ No newline at end of file
diff --git a/examples/device/msc_dual_lun/.skip.MCU_MKL25ZXX b/examples/device/msc_dual_lun/.skip.MCU_MKL25ZXX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/msc_dual_lun/.skip.MCU_SAMD11 b/examples/device/msc_dual_lun/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/msc_dual_lun/skip.txt b/examples/device/msc_dual_lun/skip.txt
new file mode 100644
index 00000000..3549c702
--- /dev/null
+++ b/examples/device/msc_dual_lun/skip.txt
@@ -0,0 +1,2 @@
+mcu:SAMD11
+mcu:MKL25ZXX
\ No newline at end of file
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_BCM2711 b/examples/device/net_lwip_webserver/.skip.MCU_BCM2711
deleted file mode 100644
index bdc68f5d..00000000
--- a/examples/device/net_lwip_webserver/.skip.MCU_BCM2711
+++ /dev/null
@@ -1 +0,0 @@
-tinyusb/lib/lwip/src/include/lwip/arch.h:202:13: error: conflicting types for 'ssize_t'
\ No newline at end of file
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_BCM2835 b/examples/device/net_lwip_webserver/.skip.MCU_BCM2835
deleted file mode 100644
index bdc68f5d..00000000
--- a/examples/device/net_lwip_webserver/.skip.MCU_BCM2835
+++ /dev/null
@@ -1 +0,0 @@
-tinyusb/lib/lwip/src/include/lwip/arch.h:202:13: error: conflicting types for 'ssize_t'
\ No newline at end of file
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_BCM2837 b/examples/device/net_lwip_webserver/.skip.MCU_BCM2837
deleted file mode 100644
index bdc68f5d..00000000
--- a/examples/device/net_lwip_webserver/.skip.MCU_BCM2837
+++ /dev/null
@@ -1 +0,0 @@
-tinyusb/lib/lwip/src/include/lwip/arch.h:202:13: error: conflicting types for 'ssize_t'
\ No newline at end of file
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_LPC11UXX b/examples/device/net_lwip_webserver/.skip.MCU_LPC11UXX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_LPC13XX b/examples/device/net_lwip_webserver/.skip.MCU_LPC13XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_MKL25ZXX b/examples/device/net_lwip_webserver/.skip.MCU_MKL25ZXX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_MSP430x5xx b/examples/device/net_lwip_webserver/.skip.MCU_MSP430x5xx
deleted file mode 100644
index 17600f06..00000000
--- a/examples/device/net_lwip_webserver/.skip.MCU_MSP430x5xx
+++ /dev/null
@@ -1 +0,0 @@
-too many warnings for 16-bit integer overflow
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_NUC121 b/examples/device/net_lwip_webserver/.skip.MCU_NUC121
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_SAMD11 b/examples/device/net_lwip_webserver/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/net_lwip_webserver/.skip.MCU_STM32L0 b/examples/device/net_lwip_webserver/.skip.MCU_STM32L0
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/net_lwip_webserver/skip.txt b/examples/device/net_lwip_webserver/skip.txt
new file mode 100644
index 00000000..68761b05
--- /dev/null
+++ b/examples/device/net_lwip_webserver/skip.txt
@@ -0,0 +1,10 @@
+mcu:LPC11UXX
+mcu:LPC13XX
+mcu:MSP430x5xx
+mcu:NUC121
+mcu:SAMD11
+mcu:STM32L0
+mcu:MKL25ZXX
+family:broadcom_64bit
+family:broadcom_32bit
+board:curiosity_nano
\ No newline at end of file
diff --git a/examples/device/uac2_headset/.skip.MCU_LPC11UXX b/examples/device/uac2_headset/.skip.MCU_LPC11UXX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/uac2_headset/.skip.MCU_LPC13XX b/examples/device/uac2_headset/.skip.MCU_LPC13XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/uac2_headset/.skip.MCU_NUC121 b/examples/device/uac2_headset/.skip.MCU_NUC121
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/uac2_headset/.skip.MCU_SAMD11 b/examples/device/uac2_headset/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/uac2_headset/.skip.MCU_SAME5X b/examples/device/uac2_headset/.skip.MCU_SAME5X
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/uac2_headset/.skip.MCU_SAMG b/examples/device/uac2_headset/.skip.MCU_SAMG
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/uac2_headset/skip.txt b/examples/device/uac2_headset/skip.txt
new file mode 100644
index 00000000..9471822a
--- /dev/null
+++ b/examples/device/uac2_headset/skip.txt
@@ -0,0 +1,6 @@
+mcu:LPC11UXX
+mcu:LPC13XX
+mcu:NUC121
+mcu:SAMD11
+mcu:SAME5X
+mcu:SAMG
\ No newline at end of file
diff --git a/examples/device/video_capture/.skip.MCU_MSP430x5xx b/examples/device/video_capture/.skip.MCU_MSP430x5xx
deleted file mode 100644
index 17600f06..00000000
--- a/examples/device/video_capture/.skip.MCU_MSP430x5xx
+++ /dev/null
@@ -1 +0,0 @@
-too many warnings for 16-bit integer overflow
diff --git a/examples/device/video_capture/.skip.MCU_SAMD11 b/examples/device/video_capture/.skip.MCU_SAMD11
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/device/video_capture/skip.txt b/examples/device/video_capture/skip.txt
new file mode 100644
index 00000000..892a8c6a
--- /dev/null
+++ b/examples/device/video_capture/skip.txt
@@ -0,0 +1,2 @@
+mcu:MSP430x5xx
+mcu:SAMD11
\ No newline at end of file
diff --git a/examples/host/cdc_msc_hid/.only.MCU_LPC175X_6X b/examples/host/cdc_msc_hid/.only.MCU_LPC175X_6X
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/cdc_msc_hid/.only.MCU_LPC177X_8X b/examples/host/cdc_msc_hid/.only.MCU_LPC177X_8X
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/cdc_msc_hid/.only.MCU_LPC18XX b/examples/host/cdc_msc_hid/.only.MCU_LPC18XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/cdc_msc_hid/.only.MCU_LPC40XX b/examples/host/cdc_msc_hid/.only.MCU_LPC40XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/cdc_msc_hid/.only.MCU_LPC43XX b/examples/host/cdc_msc_hid/.only.MCU_LPC43XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/cdc_msc_hid/.only.MCU_MIMXRT10XX b/examples/host/cdc_msc_hid/.only.MCU_MIMXRT10XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/cdc_msc_hid/.only.MCU_MSP432E4 b/examples/host/cdc_msc_hid/.only.MCU_MSP432E4
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/cdc_msc_hid/.only.MCU_RP2040 b/examples/host/cdc_msc_hid/.only.MCU_RP2040
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/cdc_msc_hid/only.txt b/examples/host/cdc_msc_hid/only.txt
new file mode 100644
index 00000000..db9a337e
--- /dev/null
+++ b/examples/host/cdc_msc_hid/only.txt
@@ -0,0 +1,8 @@
+mcu:LPC175X_6X
+mcu:LPC177X_8X
+mcu:LPC18XX
+mcu:LPC40XX
+mcu:LPC43XX
+mcu:MIMXRT10XX
+mcu:RP2040
+mcu:MSP432E4
\ No newline at end of file
diff --git a/examples/host/hid_controller/.only.MCU_LPC175X_6X b/examples/host/hid_controller/.only.MCU_LPC175X_6X
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/hid_controller/.only.MCU_LPC177X_8X b/examples/host/hid_controller/.only.MCU_LPC177X_8X
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/hid_controller/.only.MCU_LPC18XX b/examples/host/hid_controller/.only.MCU_LPC18XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/hid_controller/.only.MCU_LPC40XX b/examples/host/hid_controller/.only.MCU_LPC40XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/hid_controller/.only.MCU_LPC43XX b/examples/host/hid_controller/.only.MCU_LPC43XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/hid_controller/.only.MCU_MIMXRT10XX b/examples/host/hid_controller/.only.MCU_MIMXRT10XX
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/hid_controller/.only.MCU_MSP432E4 b/examples/host/hid_controller/.only.MCU_MSP432E4
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/hid_controller/.only.MCU_RP2040 b/examples/host/hid_controller/.only.MCU_RP2040
deleted file mode 100644
index e69de29b..00000000
diff --git a/examples/host/hid_controller/only.txt b/examples/host/hid_controller/only.txt
new file mode 100644
index 00000000..db9a337e
--- /dev/null
+++ b/examples/host/hid_controller/only.txt
@@ -0,0 +1,8 @@
+mcu:LPC175X_6X
+mcu:LPC177X_8X
+mcu:LPC18XX
+mcu:LPC40XX
+mcu:LPC43XX
+mcu:MIMXRT10XX
+mcu:RP2040
+mcu:MSP432E4
\ No newline at end of file
diff --git a/hw/bsp/samd21/boards/curiosity_nano/.skip.device.net_lwip_webserver b/hw/bsp/samd21/boards/curiosity_nano/.skip.device.net_lwip_webserver
deleted file mode 100644
index e69de29b..00000000
diff --git a/tools/build_board.py b/tools/build_board.py
index 9397c754..b2a80c68 100644
--- a/tools/build_board.py
+++ b/tools/build_board.py
@@ -4,6 +4,8 @@ import sys
 import subprocess
 import time
 
+import build_utils
+
 SUCCEEDED = "\033[32msucceeded\033[0m"
 FAILED = "\033[31mfailed\033[0m"
 SKIPPED = "\033[33mskipped\033[0m"
@@ -50,7 +52,7 @@ def build_board(example, board):
     sram_size = "-"
 
     # Check if board is skipped
-    if skip_example(example, board):
+    if build_utils.skip_example(example, board):
         success = SKIPPED
         skip_count += 1
         print(build_format.format(example, board, success, '-', flash_size, sram_size))
@@ -82,33 +84,6 @@ def build_size(example, board):
     sram_size = int(size_list[1]) + int(size_list[2])
     return (flash_size, sram_size)
 
-def skip_example(example, board):
-    ex_dir = 'examples/' + example
-    board_mk = 'hw/bsp/{}/board.mk'.format(board)
-    with open(board_mk) as mk:
-        mk_contents = mk.read()
-
-        # Skip all OPT_MCU_NONE these are WIP port
-        if '-DCFG_TUSB_MCU=OPT_MCU_NONE' in mk_contents:
-            return 1
-
-        # Skip if CFG_TUSB_MCU in board.mk to match skip file
-        for skip_file in glob.iglob(ex_dir + '/.skip.MCU_*'):
-            mcu_cflag = '-DCFG_TUSB_MCU=OPT_' + os.path.basename(skip_file).split('.')[2]
-            if mcu_cflag in mk_contents:
-                return 1
-
-        # Build only list, if exists only these MCU are built
-        only_list = list(glob.iglob(ex_dir + '/.only.MCU_*'))
-        if len(only_list) > 0:
-            for only_file in only_list:
-                mcu_cflag = '-DCFG_TUSB_MCU=OPT_' + os.path.basename(only_file).split('.')[2]
-                if mcu_cflag in mk_contents:
-                    return 0
-            return 1
-
-    return 0
-
 print(build_separator)
 print(build_format.format('Example', 'Board', '\033[39mResult\033[0m', 'Time', 'Flash', 'SRAM'))
 
diff --git a/tools/build_esp32sx.py b/tools/build_esp32sx.py
index 91953f08..2947a0a6 100644
--- a/tools/build_esp32sx.py
+++ b/tools/build_esp32sx.py
@@ -4,6 +4,8 @@ import sys
 import subprocess
 import time
 
+import build_utils
+
 SUCCEEDED = "\033[32msucceeded\033[0m"
 FAILED = "\033[31mfailed\033[0m"
 SKIPPED = "\033[33mskipped\033[0m"
@@ -51,7 +53,7 @@ def build_board(example, board):
     sram_size = "-"
 
     # Check if board is skipped
-    if skip_example(example, board):
+    if build_utils.skip_example(example, board):
         success = SKIPPED
         skip_count += 1
         print(build_format.format(example, board, success, '-', flash_size, sram_size))
@@ -83,9 +85,6 @@ def build_size(example, board):
     sram_size = int(size_list[1]) + int(size_list[2])
     return (flash_size, sram_size)
 
-def skip_example(example, board):
-    return 0
-
 print(build_separator)
 print(build_format.format('Example', 'Board', '\033[39mResult\033[0m', 'Time', 'Flash', 'SRAM'))
 print(build_separator)
diff --git a/tools/build_family.py b/tools/build_family.py
index ccbcfa3f..4094d07d 100644
--- a/tools/build_family.py
+++ b/tools/build_family.py
@@ -4,6 +4,8 @@ import sys
 import subprocess
 import time
 
+import build_utils
+
 SUCCEEDED = "\033[32msucceeded\033[0m"
 FAILED = "\033[31mfailed\033[0m"
 SKIPPED = "\033[33mskipped\033[0m"
@@ -62,7 +64,7 @@ def build_board(example, board):
     sram_size = "-"
 
     # Check if board is skipped
-    if skip_example(example, board):
+    if build_utils.skip_example(example, board):
         success = SKIPPED
         skip_count += 1
         print(build_format.format(example, board, success, '-', flash_size, sram_size))
@@ -95,46 +97,6 @@ def build_size(example, board):
     sram_size = int(size_list[1]) + int(size_list[2])
     return (flash_size, sram_size)
 
-def skip_example(example, board):
-    ex_dir = 'examples/' + example
-    
-    # Check if example is skipped by family or board directory
-    skip_file = ".skip." + example.replace('/', '.');
-    if os.path.isfile("hw/bsp/{}/{}".format(family, skip_file)) or os.path.isfile("hw/bsp/{}/boards/{}/{}".format(family, board, skip_file)):
-        return 1
-
-    # Otherwise check if mcu is excluded by example directory
-
-    # family CMake
-    family_mk = 'hw/bsp/{}/family.cmake'.format(family)
-
-    # family.mk
-    if not os.path.exists(family_mk):
-        family_mk = 'hw/bsp/{}/family.mk'.format(family)
-
-    with open(family_mk) as mk:
-        mk_contents = mk.read()
-
-        # Skip all OPT_MCU_NONE these are WIP port
-        if 'CFG_TUSB_MCU=OPT_MCU_NONE' in mk_contents:
-            return 1
-
-        # Skip if CFG_TUSB_MCU in family.mk to match skip file
-        for skip_file in glob.iglob(ex_dir + '/.skip.MCU_*'):
-            mcu_cflag = 'CFG_TUSB_MCU=OPT_' + os.path.basename(skip_file).split('.')[2]
-            if mcu_cflag in mk_contents:
-                return 1
-
-        # Build only list, if exists only these MCU are built
-        only_list = list(glob.iglob(ex_dir + '/.only.MCU_*'))
-        if len(only_list) > 0:
-            for only_file in only_list:
-                mcu_cflag = 'CFG_TUSB_MCU=OPT_' + os.path.basename(only_file).split('.')[2]
-                if mcu_cflag in mk_contents:
-                    return 0
-            return 1
-    return 0
-
 print(build_separator)
 print(build_format.format('Example', 'Board', '\033[39mResult\033[0m', 'Time', 'Flash', 'SRAM'))
 
diff --git a/tools/build_utils.py b/tools/build_utils.py
new file mode 100644
index 00000000..299fffa4
--- /dev/null
+++ b/tools/build_utils.py
@@ -0,0 +1,61 @@
+import pathlib
+
+def skip_example(example, board):
+    ex_dir = pathlib.Path('examples/') / example
+    bsp = pathlib.Path("hw/bsp")
+
+    board_dir = list(bsp.glob("*/boards/" + board))
+    if not board_dir:
+        # Skip unknown boards
+        return True
+
+    board_dir = list(board_dir)[0]
+    
+    family_dir = board_dir.parent.parent
+    family = family_dir.name
+
+    # family CMake
+    family_mk = family_dir / "family.cmake"
+
+    # family.mk
+    if not family_mk.exists():
+        family_mk = family_dir / "family.mk"
+
+    mk_contents = family_mk.read_text()
+
+    # Find the mcu
+    if "CFG_TUSB_MCU=OPT_MCU_" not in mk_contents:
+        board_mk = board_dir / "board.cmake"
+        if not board_mk.exists():
+            board_mk = board_dir / "board.mk"
+
+        mk_contents = board_mk.read_text()
+
+    for token in mk_contents.split():
+        if "CFG_TUSB_MCU=OPT_MCU_" in token:
+            # Strip " because cmake files has them.
+            token = token.strip("\"")
+            _, opt_mcu = token.split("=")
+            mcu = opt_mcu[len("OPT_MCU_"):]
+
+    # Skip all OPT_MCU_NONE these are WIP port
+    if mcu == "NONE":
+        return True
+
+    skip_file = ex_dir / "skip.txt"
+    only_file = ex_dir / "only.txt"
+
+    if skip_file.exists() and only_file.exists():
+        raise RuntimeError("Only have a skip or only file. Not both.")
+    elif skip_file.exists():
+        skips = skip_file.read_text().split()
+        return ("mcu:" + mcu in skips or
+                "board:" + board in skips or
+                "family:" + family in skips)
+    elif only_file.exists():
+        onlys = only_file.read_text().split()
+        return not ("mcu:" + mcu in onlys or
+                    "board:" + board in onlys or
+                    "family:" + family in onlys)
+
+    return False

From 47218eeb674789db9dbd9b8b305c6390c3e00577 Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@tannewt.org>
Date: Wed, 5 Jan 2022 16:07:17 -0800
Subject: [PATCH 5/6] No exceptions on broadcom. Add parens to if

---
 hw/bsp/broadcom_32bit/family.mk  |  1 +
 src/class/usbtmc/usbtmc_device.c | 18 ++++++++++--------
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/hw/bsp/broadcom_32bit/family.mk b/hw/bsp/broadcom_32bit/family.mk
index 4ff57474..98744c5d 100644
--- a/hw/bsp/broadcom_32bit/family.mk
+++ b/hw/bsp/broadcom_32bit/family.mk
@@ -10,6 +10,7 @@ CFLAGS += \
 	-nostdlib \
 	-nostartfiles \
 	-mgeneral-regs-only \
+	-fno-exceptions \
 	-std=c17
 
 CROSS_COMPILE = arm-none-eabi-
diff --git a/src/class/usbtmc/usbtmc_device.c b/src/class/usbtmc/usbtmc_device.c
index 4bd1edf1..26be987c 100644
--- a/src/class/usbtmc/usbtmc_device.c
+++ b/src/class/usbtmc/usbtmc_device.c
@@ -235,17 +235,19 @@ void usbtmcd_init_cb(void)
   usbtmc_state.capabilities = tud_usbtmc_get_capabilities_cb();
 #ifndef NDEBUG
 # if CFG_TUD_USBTMC_ENABLE_488
-    if(usbtmc_state.capabilities->bmIntfcCapabilities488.supportsTrigger)
-      TU_ASSERT(&tud_usbtmc_msg_trigger_cb != NULL,);
-      // Per USB488 spec: table 8
-      TU_ASSERT(!usbtmc_state.capabilities->bmIntfcCapabilities.listenOnly,);
-      TU_ASSERT(!usbtmc_state.capabilities->bmIntfcCapabilities.talkOnly,);
+  if (usbtmc_state.capabilities->bmIntfcCapabilities488.supportsTrigger) {
+    TU_ASSERT(&tud_usbtmc_msg_trigger_cb != NULL,);
+  }
+  // Per USB488 spec: table 8
+  TU_ASSERT(!usbtmc_state.capabilities->bmIntfcCapabilities.listenOnly,);
+  TU_ASSERT(!usbtmc_state.capabilities->bmIntfcCapabilities.talkOnly,);
 # endif
-    if(usbtmc_state.capabilities->bmIntfcCapabilities.supportsIndicatorPulse)
-      TU_ASSERT(&tud_usbtmc_indicator_pulse_cb != NULL,);
+  if (usbtmc_state.capabilities->bmIntfcCapabilities.supportsIndicatorPulse) {
+    TU_ASSERT(&tud_usbtmc_indicator_pulse_cb != NULL,);
+  }
 #endif
 
-    usbtmcLock = osal_mutex_create(&usbtmcLockBuffer);
+  usbtmcLock = osal_mutex_create(&usbtmcLockBuffer);
 }
 
 uint16_t usbtmcd_open_cb(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len)

From bed8913107efeb4b38d80f5cc4caef2fd351b57f Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@tannewt.org>
Date: Wed, 5 Jan 2022 16:17:19 -0800
Subject: [PATCH 6/6] Skip dfu and usbtmc on pi zero

---
 examples/device/dfu/skip.txt    | 3 ++-
 examples/device/usbtmc/skip.txt | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)
 create mode 100644 examples/device/usbtmc/skip.txt

diff --git a/examples/device/dfu/skip.txt b/examples/device/dfu/skip.txt
index 2c9d9490..9ac346ba 100644
--- a/examples/device/dfu/skip.txt
+++ b/examples/device/dfu/skip.txt
@@ -1 +1,2 @@
-mcu:TM4C123
\ No newline at end of file
+mcu:TM4C123
+mcu:BCM2835
diff --git a/examples/device/usbtmc/skip.txt b/examples/device/usbtmc/skip.txt
new file mode 100644
index 00000000..a43106cf
--- /dev/null
+++ b/examples/device/usbtmc/skip.txt
@@ -0,0 +1 @@
+mcu:BCM2835