Add files for msp432e4

5 files changed, 270 insertions, 1 deletions

diff --git a/hw/bsp/msp432e4/boards/msp_exp432e401y/board.h b/hw/bsp/msp432e4/boards/msp_exp432e401y/board.h
new file mode 100644
index 000000000..b449f3ca4
--- /dev/null
+++ b/hw/bsp/msp432e4/boards/msp_exp432e401y/board.h
@@ -0,0 +1,46 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 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_
+
+#define LED_PORT              P1OUT
+#define LED_PIN               BIT0
+#define LED_STATE_ON          1
+
+#define BUTTON_PORT           P1IN
+#define BUTTON_PIN            BIT1
+#define BUTTON_STATE_ACTIVE   0
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif
diff --git a/hw/bsp/msp432e4/family.c b/hw/bsp/msp432e4/family.c
new file mode 100644
index 000000000..3bb36042d
--- /dev/null
+++ b/hw/bsp/msp432e4/family.c
@@ -0,0 +1,174 @@
+/*
+ * 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 "msp.h"
+
+/* Frequency of the external crystal oscillator */
+#define XTAL_FREQUENCY   25000000UL
+
+//--------------------------------------------------------------------+
+// Forward USB interrupt events to TinyUSB IRQ Handler
+//--------------------------------------------------------------------+
+void USB0_IRQHandler(void)
+{
+  tud_int_handler(0);
+}
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM
+//--------------------------------------------------------------------+
+
+void board_init(void)
+{
+  /* Turn off power domains that unused peripherals belong to */
+  SYSCTL->PCCAN  = 0u;
+#ifdef __MCU_HAS_LCD0__
+  SYSCTL->PCLCD  = 0u;
+#endif
+  SYSCTL->PCEMAC = 0u;
+  SYSCTL->PCEPHY = 0u;
+  SYSCTL->PCCCM  = 0u;
+
+  /* --- Setup system clock --- */
+  /* Start power-up process of the main oscillator */
+  SYSCTL->MOSCCTL = SYSCTL_MOSCCTL_OSCRNG;
+  while (!(SYSCTL->RIS & SYSCTL_RIS_MOSCPUPRIS)) ; /* Wait for completion */
+  SYSCTL->MISC = SYSCTL_MISC_MOSCPUPMIS; /* Clear the completion interrupt status */
+  /* Set the main oscillator to PLL reference clock */
+  SYSCTL->RSCLKCFG = SYSCTL_RSCLKCFG_PLLSRC_MOSC;
+  /* PLL freq. = (MOSC freq. / 10) * 96 = 240MHz */
+  SYSCTL->PLLFREQ1 = (4 << SYSCTL_PLLFREQ1_N_S) | (1 << SYSCTL_PLLFREQ1_Q_S);
+  SYSCTL->PLLFREQ0 = (96 << SYSCTL_PLLFREQ0_MINT_S) | SYSCTL_PLLFREQ0_PLLPWR;
+  /* Set BCHT=6, BCE=0, WS=5 for 120MHz system clock */
+  SYSCTL->MEMTIM0 = SYSCTL_MEMTIM0_EBCHT_3_5 | (5 << SYSCTL_MEMTIM0_EWS_S) |
+    SYSCTL_MEMTIM0_FBCHT_3_5 | (5 << SYSCTL_MEMTIM0_FWS_S) | SYSCTL_MEMTIM0_MB1;
+  /* Wait for completion of PLL power-up process */
+  while (!(SYSCTL->RIS & SYSCTL_RIS_PLLLRIS)) ;
+  SYSCTL->MISC = SYSCTL_MISC_PLLLMIS; /* Clear the completion interrupt status */
+  /* Switch the system clock to PLL/4 */
+  SYSCTL->RSCLKCFG = SYSCTL_RSCLKCFG_MEMTIMU | SYSCTL_RSCLKCFG_ACG |
+         SYSCTL_RSCLKCFG_USEPLL | SYSCTL_RSCLKCFG_PLLSRC_MOSC | (1 << SYSCTL_RSCLKCFG_PSYSDIV_S);
+
+  SystemCoreClockUpdate();
+#if CFG_TUSB_OS == OPT_OS_NONE
+  SysTick_Config(SystemCoreClock / 1000);
+#endif
+
+  /* USR_LED1 PN1 */
+  SYSCTL->RCGCGPIO |= 1u << 12;
+  while (!(SYSCTL->PRGPIO & (1u << 12))) ;
+  GPION->DIR        = 2u;
+  GPION->DEN        = 2u;
+
+  /* USR_SW1 PJ0 */
+  SYSCTL->RCGCGPIO |= 1u << 8;
+  while (!(SYSCTL->PRGPIO & (1u << 8))) ;
+  GPIOJ->PUR        = 1u;
+  GPIOJ->DEN        = 1u;
+
+  /* UART PA0,1 */
+  SYSCTL->RCGCGPIO |= 1u << 0;
+  while (!(SYSCTL->PRGPIO & (1u << 0))) ;
+  GPIOA->AFSEL      = 3u;
+  GPIOA->PCTL       = 0x11u;
+  GPIOA->DEN        = 3u;
+
+  SYSCTL->RCGCUART |= 1u << 0;
+  while (!(SYSCTL->PRUART & (1u << 0))) ;
+  UART0->CTL        = 0;
+  UART0->IBRD       = 8;  /* 8.68056 = 16MHz / (16 * 115200) */
+  UART0->FBRD       = 44; /* 0.6875 = 44/64 -> 115108bps (0.08%) */
+  UART0->LCRH       = UART_LCRH_WLEN_8 | UART_LCRH_FEN;
+  UART0->CC         = UART_CC_CS_PIOSC; /* Set the baud clock to PIOSC */
+  UART0->CTL        = UART_CTL_RXE | UART_CTL_TXE | UART_CTL_UARTEN;
+
+  /* USB PB1(VBUS) PL6,7(DP,DM) */
+  SYSCTL->RCGCGPIO |= (1u << 1) | (1u << 10);
+  while (((1u << 1) | (1u << 10)) != (SYSCTL->PRGPIO & ((1u << 1) | (1u << 10)))) ;
+  GPIOB->AMSEL      = 1u << 1;
+  GPIOL->AMSEL      = (1u << 6) | (1u << 7);
+
+  SYSCTL->RCGCUSB   = 1u; /* Open the clock gate for SYSCLK */
+  while (!(SYSCTL->PRUSB & (1u << 0))) ;
+  USB0->CC          = USB_CC_CLKEN | (3u << USB_CC_CLKDIV_S); /* 60MHz = 240MHz / 4 */
+  __DMB(); /* Wait for completion of opening of the clock gate */
+
+  SYSCTL->SRUSB     = 1u;
+  for (int i = 0; i < 16; ++i) __NOP();
+  SYSCTL->SRUSB     = 0u;
+
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  if (state)
+    GPION->DATA |= 2u;
+  else
+    GPION->DATA &= ~2u;
+}
+
+uint32_t board_button_read(void)
+{
+  return (GPIOJ->DATA & 1u) ? 0u : 1u;
+}
+
+int board_uart_read(uint8_t * buf, int len)
+{
+  for (int i = 0; i < len; ++i) {
+    while (UART0->FR & UART_FR_RXFE) ;
+    *buf++ = UART0->DR;
+  }
+  return len;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+  uint8_t const *p = (uint8_t const *)buf;
+  for (int i = 0; i < len; ++i) {
+    while (UART0->FR & UART_FR_TXFF) ;
+    UART0->DR = *p++;
+  }
+  return len;
+}
+
+#if CFG_TUSB_OS  == OPT_OS_NONE
+volatile uint32_t system_ticks = 0u;
+void SysTick_Handler(void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif
diff --git a/hw/bsp/msp432e4/family.mk b/hw/bsp/msp432e4/family.mk
new file mode 100644
index 000000000..d0ea13456
--- /dev/null
+++ b/hw/bsp/msp432e4/family.mk
@@ -0,0 +1,48 @@
+DEPS_SUBMODULES += lib/CMSIS_5 hw/mcu/ti
+
+CFLAGS += \
+	-flto \
+	-mthumb \
+	-mslow-flash-data \
+	-mabi=aapcs \
+	-mcpu=cortex-m4 \
+	-mfloat-abi=hard \
+	-mfpu=fpv4-sp-d16 \
+	-D__MSP432E401Y__ \
+	-DCFG_TUSB_MCU=OPT_MCU_MSP432E4xx
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/mcu/ti/msp432e4/Source/msp432e401y.ld
+LDINC += $(TOP)/hw/mcu/ti/msp432e4/Include
+LDFLAGS += $(addprefix -L,$(LDINC))
+
+MCU_DIR = hw/mcu/ti/msp432e4
+
+SRC_C += \
+	src/portable/mentor/dcd_musb.c \
+	$(MCU_DIR)/Source/system_msp432e401y.c
+
+INC += \
+	$(TOP)/lib/CMSIS_5/CMSIS/Core/Include \
+	$(TOP)/$(MCU_DIR)/Include \
+	$(TOP)/$(BOARD_PATH)
+
+SRC_S += $(MCU_DIR)/Source/startup_msp432e411y_gcc.S
+
+# For freeRTOS port source
+FREERTOS_PORT = ARM_CM4F
+
+# export for libmsp430.so to same installation
+ifneq ($(OS),Windows_NT)
+export LD_LIBRARY_PATH=$(dir $(shell which MSP430Flasher))
+endif
+
+# flash target using TI MSP430-Flasher
+# http://www.ti.com/tool/MSP430-FLASHER
+# Please add its installation dir to PATH
+flash: $(BUILD)/$(PROJECT).hex
+	MSP430Flasher -w $< -z [VCC]
+
+# flash target using mspdebug.
+flash-mspdebug: $(BUILD)/$(PROJECT).elf
+	$(MSPDEBUG) tilib "prog $<" --allow-fw-update
diff --git a/src/device/dcd_attr.h b/src/device/dcd_attr.h
index 15d8ce204..1befa89b6 100644
--- a/src/device/dcd_attr.h
+++ b/src/device/dcd_attr.h
@@ -143,7 +143,7 @@
   #define DCD_ATTR_ENDPOINT_EXCLUSIVE_NUMBER
 
 //------------- TI -------------//
-#elif TU_CHECK_MCU(OPT_MCU_MSP430x5xx)
+#elif TU_CHECK_MCU(OPT_MCU_MSP430x5xx, OPT_MCU_MSP432E4xx)
   #define DCD_ATTR_ENDPOINT_MAX   8
 
 //------------- ValentyUSB -------------//
diff --git a/src/tusb_option.h b/src/tusb_option.h
index e33d5a057..aaf4f3657 100644
--- a/src/tusb_option.h
+++ b/src/tusb_option.h
@@ -86,6 +86,7 @@
 
 // TI MSP430
 #define OPT_MCU_MSP430x5xx        500 ///< TI MSP430x5xx
+#define OPT_MCU_MSP432E4xx        510 ///< TI MSP432E4xx
 
 // ValentyUSB eptri
 #define OPT_MCU_VALENTYUSB_EPTRI  600 ///< Fomu eptri config