Qorvo pac55xx: initial support

Qorvo (Nee Active Semi) PAC55xx "Intelligent Motor Control" parts,
cortex-m4 SoCs

.gitignore

@@ -36,6 +36,7 @@ include/libopencmsis/lpc13xx/
 include/libopencmsis/lpc17xx/
 include/libopencmsis/lpc43xx/
 include/libopencmsis/msp432/
+include/libopencmsis/pac55xx/
 include/libopencmsis/sam/
 include/libopencmsis/stm32/
 include/libopencmsis/swm050/

Makefile

@@ -37,7 +37,8 @@ TARGETS ?=	stm32/f0 stm32/f1 stm32/f2 stm32/f3 stm32/f4 stm32/f7 \
 		sam/3a sam/3n sam/3s sam/3u sam/3x sam/4l \
 		sam/d \
 		vf6xx \
-		swm050
+		swm050 \
+		pac55xx
 
 # Be silent per default, but 'make V=1' will show all compiler calls.
 ifneq ($(V),1)

README.md

@@ -16,6 +16,7 @@ Currently (at least partly) supported microcontrollers:
  - TI (Tiva) LM4F series (continuing as TM4F, pin and peripheral compatible)
  - EFM32 Gecko series (only core support)
  - Freescale Vybrid VF6xx
+ - Qorvo (formerly ActiveSemi) PAC55XX
 
 The library is written completely from scratch based on the vendor datasheets,
 programming manuals, and application notes. The code is meant to be used

doc/Makefile

@@ -15,7 +15,9 @@ TARGETS ?= stm32/f0 stm32/f1 stm32/f2 stm32/f3 stm32/f4 stm32/f7 \
 		   lpc13xx lpc17xx lpc43xx \
 		   sam/3a sam/3n sam/3s sam/3u sam/3x \
 		   vf6xx \
-		   swm050
+		   swm050 \
+   		   pac55xx
+
 
 TARGETS_DIRS = $(subst /,,$(TARGETS))
 

doc/pac55xx/doxy.custom

@@ -0,0 +1 @@
+PREDEFINED += __ARM_ARCH_7EM__

include/libopencm3/dispatch/nvic.h

@@ -78,6 +78,9 @@
 #elif defined(SWM050)
 #       include <libopencm3/swm050/nvic.h>
 
+#elif defined(PAC55XX)
+#       include <libopencm3/pac55xx/nvic.h>
+
 #else
 #	warning"no interrupts defined for chipset; NVIC_IRQ_COUNT = 0"
 

include/libopencm3/pac55xx/irq.json

@@ -0,0 +1,38 @@
+{
+    "irqs": [
+        "memctl",
+        "wdt",
+        "rtc",
+        "adc0",
+        "adc1",
+        "adc2",
+        "adc3",
+        "timera",
+        "timerb",
+        "timerc",
+        "timerd",
+        "timera_qep",
+        "timerb_qep",
+        "timerc_qep",
+        "timerd_qep",
+        "gpioa",
+        "gpiob",
+        "gpioc",
+        "gpiod",
+        "gpioe",
+        "gpiof",
+        "gpiog",
+        "i2c",
+        "usarta",
+        "usartb",
+        "usartc",
+        "usartd",
+        "can",
+        "gptimera",
+        "gptimerb",
+        "scc"
+    ],
+    "partname_humanreadable": "PAC55XX Series",
+    "partname_doxygen": "PAC55XX",
+    "includeguard": "LIBOPENCM3_PAC55XX_H_"
+}

ld/devices.data

@@ -467,6 +467,15 @@ vf610 vf6xx RAM=256K RAM1=256K RAM_OFF=0x1f000000 RAM1_OFF=0x3f040000
 
 swm050* END ROM=8K RAM=1K ROM_OFF=0x00000000 RAM_OFF=0x20000000 CPU=cortex-m0 FPU=soft
 
+################################################################################
+# Qorvo PAC55xx Cortex-M4 based chips
+
+pac5523 pac55xx ROM=128K RAM=32K
+pac5524 pac55xx ROM=128K RAM=32K
+pac5527 pac55xx ROM=128K RAM=32K
+pac5532 pac55xx ROM=128K RAM=32K
+pac5556 pac55xx ROM=128K RAM=32K
+
 ################################################################################
 ################################################################################
 ################################################################################
@@ -564,3 +573,8 @@ rm46l END ROM_OFF=0x00000000 RAM_OFF=0x08000000 RAM1_OFF=0x08400000
 # VF6xx families
 
 vf6xx END CPU=cortex-m4 FPU=hard-fpv4-sp-d16
+
+################################################################################
+# PAC55xx families
+
+pac55xx END ROM_OFF=0x00000000 RAM_OFF=0x20000000 CPU=cortex-m4 FPU=hard-fpv4-sp-d16

lib/dispatch/vector_chipset.c

@@ -16,6 +16,8 @@
 #	include "../efm32/wg/vector_chipset.c"
 #elif defined(EZR32WG)
 #	include "../efm32/ezr32wg/vector_chipset.c"
+#elif defined(PAC55XX)
+#	include "../pac55xx/vector_chipset.c"
 #else
 
 static void pre_main(void) {}

lib/dispatch/vector_nvic.c

@@ -64,6 +64,10 @@
 #elif defined(VF6XX)
 #	include "../vf6xx/vector_nvic.c"
 
+#elif defined(PAC55XX)
+#       include "../pac55xx/vector_nvic.c"
+
+
 #elif defined(LM3S) || defined(LM4F)
 /* Yes, we use the same interrupt table for both LM3S and LM4F */
 #	include "../lm3s/vector_nvic.c"

lib/pac55xx/Makefile

@@ -0,0 +1,41 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2019 Brian Viele <vielster@allocor.tech>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library.  If not, see <http://www.gnu.org/licenses/>.
+##
+## The PAC55xx by Qorvo (formerly ActiveSemi) is a Cortex-M4F based device
+## which is specialized for motor control and PSC applications. 
+
+LIBNAME		= libopencm3_pac55xx
+SRCLIBDIR	?= ..
+FP_FLAGS	?= -mfloat-abi=hard -mfpu=fpv4-sp-d16
+CC		= $(PREFIX)gcc
+AR		= $(PREFIX)ar
+TGT_CFLAGS	= -Os \
+		  -Wall -Wextra -Wimplicit-function-declaration \
+		  -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \
+		  -Wundef -Wshadow \
+		  -I../../include -fno-common \
+		  -mcpu=cortex-m4 -mthumb $(FP_FLAGS) -Wstrict-prototypes \
+		  -ffunction-sections -fdata-sections -MD -DPAC55XX
+TGT_CFLAGS  += $(DEBUG_FLAGS)
+TGT_CFLAGS  += $(STANDARD_FLAGS)
+ARFLAGS		= rcs
+
+VPATH += ../cm3
+
+
+include ../Makefile.include

lib/pac55xx/vector_chipset.c

@@ -0,0 +1,25 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2019 Brian Viele <vielster@allocor.tech>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Standard Cortex-M4F initialization of FPU. */
+static void pre_main(void)
+{
+	/* Enable FPU */
+	SCB_CPACR |= SCB_CPACR_FULL * (SCB_CPACR_CP10 | SCB_CPACR_CP11);
+}