tc1796 is a proper arch now

7 files changed, 279 insertions, 0 deletions

diff --git a/src/arch/tc1796-triboard/Kconfig b/src/arch/tc1796-triboard/Kconfig
new file mode 100644
index 0000000..b390ecc
--- /dev/null
+++ b/src/arch/tc1796-triboard/Kconfig
@@ -0,0 +1,7 @@
+# Copyright 2022 Daniel Friesel
+#
+# SPDX-License-Identifier: CC0-1.0
+
+config arch_tc1796_triboard_driver_counter
+bool "Cycle Counter"
+select meta_driver_counter
diff --git a/src/arch/tc1796-triboard/Makefile.inc b/src/arch/tc1796-triboard/Makefile.inc
new file mode 100644
index 0000000..97c76a8
--- /dev/null
+++ b/src/arch/tc1796-triboard/Makefile.inc
@@ -0,0 +1,94 @@
+# vim:ft=make
+#
+# Copyright 2022 Daniel Friesel
+#
+# SPDX-License-Identifier: BSD-2-Clause
+
+CPU = tc1796
+
+cpu_freq ?= 150000000
+counter_freq ?= 75000000
+uart_freq ?= 115200
+SERIAL_PORT ?= ttyUSB0
+QEMU_PORT ?= 12345
+
+COMMON_FLAGS += -mcpu=${CPU} -DMULTIPASS_ARCH_tc1796
+
+ARCH_SHORTNAME = tc1796
+
+LICENSE = -mlicense-dir=${HOME}/var/source/aurix-infineon-hightec-tricore
+CC =      wine ${HOME}/.wine/drive_c/HighTec/toolchains/tricore/v4.9.3.0-infineon-1.0/bin/tricore-gcc.exe ${LICENSE}
+CXX =     wine ${HOME}/.wine/drive_c/HighTec/toolchains/tricore/v4.9.3.0-infineon-1.0/bin/tricore-g++.exe ${LICENSE}
+OBJCOPY = wine ${HOME}/.wine/drive_c/HighTec/toolchains/tricore/v4.9.3.0-infineon-1.0/bin/tricore-objcopy.exe
+OBJDUMP = wine ${HOME}/.wine/drive_c/HighTec/toolchains/tricore/v4.9.3.0-infineon-1.0/bin/tricore-objdump.exe ${LICENSE}
+SIZE =    wine ${HOME}/.wine/drive_c/HighTec/toolchains/tricore/v4.9.3.0-infineon-1.0/bin/tricore-size.exe
+
+CXX_TARGETS += src/arch/tc1796-triboard/arch.cc
+CXX_TARGETS += src/arch/tc1796-triboard/driver/gpio.cc
+CXX_TARGETS += src/arch/tc1796-triboard/driver/stdout.cc
+
+ifneq (${cpu_freq}, )
+	COMMON_FLAGS += -DF_CPU=${cpu_freq}U
+else
+	COMMON_FLAGS += -DF_CPU=150000000U
+endif
+
+ifneq ($(findstring counter,${arch_drivers}), )
+	CONFIG_arch_tc1796_triboard_driver_counter = y
+endif
+
+ifdef CONFIG_arch_tc1796_triboard_driver_counter
+	CXX_TARGETS += src/arch/tc1796-triboard/driver/counter.cc
+endif
+
+OBJECTS = ${CXX_TARGETS:.cc=.o} ${C_TARGETS:.c=.o} ${ASM_TARGETS:.S=.o}
+
+%.o : %.cc | include/config.h
+	${QUIET}${CXX} ${INCLUDES} ${COMMON_FLAGS} ${CXXFLAGS} -c -o $@ ${@:.o=.cc}
+
+%.o : %.c | include/config.h
+	${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} ${CFLAGS} -c -o $@ ${@:.o=.c}
+
+%.o : %.S | include/config.h
+	${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} -Wa,-gstabs,-ggdb -x assembler-with-cpp -c -o $@ ${@:.o=.S}
+
+build/system.elf: ${OBJECTS}
+	${QUIET}mkdir -p build
+	${QUIET}${CXX} ${INCLUDES} ${COMMON_FLAGS} ${CXXFLAGS} \
+		-Wl,--gc-sections \
+		-o $@ ${OBJECTS}
+
+build/system.bin: build/system.elf
+	${QUIET}${OBJCOPY} -O binary $< $@
+
+# Needs a Debian3.1 VM with ios:/ess/dortmund/proj/compiler/tricore-gcc-3.4.5 installed to /opt/trigcc345,
+# http://archive.debian.org/debian-security/pool/updates/main/r/resmgr/libresmgr1_1.0-2sarge2_i386.deb http://archive.debian.org/debian-security/pool/updates/main/r/resmgr/resmgr_1.0-2sarge2_i386.deb installed,
+# and SSH via localhost:2222. E.g.:
+# > qemu-system-i386 -boot c -m 2048 -hda debian3-1.qcow2 -machine type=pc,accel=kvm:tcg --enable-kvm -net nic,model=ne2k_pci -net user,hostfwd=tcp::2022-:22 -smp cores=1,threads=2 -usb -monitor telnet::${QEMU_PORT},server,nowait
+# Must already be running in the background before 'make program' can be used.
+program: build/system.bin
+	${QUIET}echo 'device_add usb-host,vendorid=0x058b,productid=0x0028,id=tricore' | nc -q 1 localhost ${QEMU_PORT}
+	${QUIET}scp -oKexAlgorithms=+diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 -oHostKeyAlgorithms=+ssh-rsa -P 2022 build/system.bin root@localhost:/tmp/system.bin
+	${QUIET}ssh -oKexAlgorithms=+diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 -oHostKeyAlgorithms=+ssh-rsa -p 2022 root@localhost "/opt/trigcc345/bin/tricore-jtag-usb-flash /opt/trigcc345/tricore/flash_driver/intern/tc1796/flashprg.elf /tmp/system.bin"
+	${QUIET}echo 'device_del tricore' | nc -q 1 localhost ${QEMU_PORT}
+
+monitor:
+	${QUIET}screen /dev/${SERIAL_PORT} ${uart_freq}
+
+arch_clean:
+	${QUIET}rm -f ${OBJECTS} build/system.elf
+
+arch_help:
+	@true
+
+arch_info:
+	@echo "CPU   Freq: ${cpu_freq} Hz"
+	@echo "Count Freq: ${counter_freq} Hz"
+
+attributes: build/system.elf
+	${QUIET}script/size.py "${SIZE}" text,rodata bss
+
+nfpvalues: build/system.elf
+	${QUIET}script/nfpvalues.py "${SIZE}" text,rodata bss
+
+.PHONY: arch_clean arch_help arch_info attributes monitor program
diff --git a/src/arch/tc1796-triboard/arch.cc b/src/arch/tc1796-triboard/arch.cc
new file mode 100644
index 0000000..73ebd2d
--- /dev/null
+++ b/src/arch/tc1796-triboard/arch.cc
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2022 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include "arch.h"
+
+extern "C" {
+#include <machine/wdtcon.h>
+#include <tc1796b/scu.h>
+#include <tc1796b/pmi.h>
+}
+
+#ifdef __acweaving
+#define __delay_cycles(x)
+#endif
+
+#define OF_BYP 29
+#define OF_NDIV 16
+#define OF_PDIV 13
+#define OF_KDIV 8
+#define OF_VCOSEL 6
+#define OF_SYSFS 2
+
+#define STM_CLC (*(volatile unsigned int*)0xf0000200)
+#define STM_TIM5 (*(volatile unsigned int*)0xf0000224)
+
+void Arch::setup(void)
+{
+	/*
+	 * 20 MHz Crystal -> 150 MHz clock
+	 * PLL_CLC := (NDIV = 29; PDIV = 0; KDIV = 3; VCOSEL = 2)
+	 */
+	unlock_wdtcon();
+	(*(unsigned int*)0xf0000040) = (29 << OF_NDIV) | (0 << OF_PDIV) | (3 << OF_KDIV) | (2 << OF_VCOSEL);
+	STM_CLC = 0x00000100;
+	lock_wdtcon();
+}
+
+#if defined(CONFIG_loop)
+extern void loop();
+unsigned int old_tim5 = 0;
+#endif
+
+volatile bool sleep_done = false;
+
+void Arch::sleep_ms(unsigned int const ms)
+{
+	delay_ms(ms);
+}
+
+void Arch::delay_us(unsigned int const us)
+{
+	for (unsigned int i = 0; i < us; i++) {
+		for (unsigned int c = 0; c < F_CPU/1000000; c++) {
+			asm volatile("nop");
+		}
+	}
+}
+void Arch::delay_ms(unsigned int const ms)
+{
+	for (unsigned int i = 0; i < ms; i++) {
+		for (unsigned int c = 0; c < F_CPU/1000; c++) {
+			asm volatile("nop");
+		}
+	}
+}
+
+void Arch::idle_loop(void)
+{
+	while (1) {
+#if defined(CONFIG_loop)
+		// STM_TIM5 will overflow once every 1.9 years.
+		if ((STM_TIM5 - old_tim5 > 70) || (old_tim5 > STM_TIM5)) {
+			old_tim5 = STM_TIM5;
+			loop();
+		}
+#endif
+	}
+}
+
+void Arch::idle(void)
+{
+}
+
+Arch arch;
diff --git a/src/arch/tc1796-triboard/driver/counter.cc b/src/arch/tc1796-triboard/driver/counter.cc
new file mode 100644
index 0000000..0277d07
--- /dev/null
+++ b/src/arch/tc1796-triboard/driver/counter.cc
@@ -0,0 +1,9 @@
+/*
+ * Copyright 2022 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include "arch.h"
+#include "driver/counter.h"
+
+Counter counter;
diff --git a/src/arch/tc1796-triboard/driver/gpio.cc b/src/arch/tc1796-triboard/driver/gpio.cc
new file mode 100644
index 0000000..b66add2
--- /dev/null
+++ b/src/arch/tc1796-triboard/driver/gpio.cc
@@ -0,0 +1,8 @@
+/*
+ * Copyright 2022 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include "driver/gpio.h"
+
+GPIO gpio;
diff --git a/src/arch/tc1796-triboard/driver/stdout.cc b/src/arch/tc1796-triboard/driver/stdout.cc
new file mode 100644
index 0000000..499b2ab
--- /dev/null
+++ b/src/arch/tc1796-triboard/driver/stdout.cc
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2022 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include "driver/stdout.h"
+#include <machine/wdtcon.h>
+#include <tc1796b/port5-struct.h>
+#include <tc1796b/asc0-struct.h>
+
+#define OF_BYP 29
+#define OF_NDIV 16
+#define OF_PDIV 13
+#define OF_KDIV 8
+#define OF_VCOSEL 6
+#define OF_SYSFS 2
+
+#define OF_RMC 8
+#define ASC0_CLC (*(volatile unsigned int*)0xf0000a00)
+#define ASC0_PISEL (*(volatile unsigned int*)0xf0000a04)
+#define ASC0_CON (*(volatile unsigned int*)0xf0000a10)
+#define ASC0_BG (*(volatile unsigned int*)0xf0000a14)
+#define ASC0_FDV (*(volatile unsigned int*)0xf0000a18)
+#define ASC0_TBUF (*(volatile unsigned int*)0xf0000a20)
+#define ASC0_TBSRC (*(volatile unsigned int*)0xf0000afc)
+
+#define SRC_SRE (1 << 12)
+#define SRC_SRR (1 << 13)
+#define SRC_CLRR (1 << 14)
+#define SRC_SETR (1 << 15)
+
+void StandardOutput::setup()
+{
+	// P5_IOCR0.PC1 = OUT_PPALT1
+	(*(volatile unsigned int*)0xf0001110) = 0x9 << 12;
+	// P5_IOMR.PS1 = 1
+	(*(volatile unsigned int*)0xf0001104) = 0x00000001;
+
+	/* Configure for 115200 Baud @ 75 MHz fSYS, see table 19-4 */
+	unsigned int const reload_value = 0x17;
+	unsigned int const fdv = 0x12e;
+
+	unlock_wdtcon();
+	// ASC0_CLC: enable (DISR := 0), RMC := 1  (clock divider == 1 -> clock == system clock "fsys"?)
+	ASC0_CLC = 1 << OF_RMC;
+	lock_wdtcon();
+	// ASC0_CON = 0
+	ASC0_CON = 0;
+	// ASC0_BG = reload_value
+	ASC0_BG = reload_value;
+	// ASC0_FDV = fdv
+	ASC0_FDV = fdv;
+	// ASC0_CON := (M := ASCM_8ASYNC == 1; FDE := 1; R := 1
+	ASC0_CON = (1 << 0) | (1 << 11) | (1 << 15);
+
+	/* After initialization, the transmit buffer is ready to accept writes. */
+	ASC0_TBSRC = SRC_SETR;
+}
+
+void StandardOutput::put(char c)
+{
+	while (!(ASC0_TBSRC & SRC_SRR)) ;
+
+	/* Clear service request flag -- we're filling up TBUF */
+	ASC0_TBSRC = SRC_CLRR;
+
+	ASC0_TBUF = c;
+
+	if (c == '\n') {
+		put('\r');
+	}
+}
+
+StandardOutput kout;
diff --git a/src/arch/tc1796-triboard/prompt b/src/arch/tc1796-triboard/prompt
new file mode 100644
index 0000000..0e6a368
--- /dev/null
+++ b/src/arch/tc1796-triboard/prompt
@@ -0,0 +1 @@
+TC1796 TriBoard