From ae5f878d6acadabaa671a7a30b87e16eb1d718a7 Mon Sep 17 00:00:00 2001
From: Megan Wachs <megan@sifive.com>
Date: Wed, 30 Nov 2016 10:55:18 -0800
Subject: Bump Everything to Match new Freedom Repo (#8)

* Bump tool versions

* Use version of OpenOCD which can load programs into flash

* Bump OpenOCD to Handle ISSI Flash Programming

* Update Header files

* add initial support for hifive1

* add dhrystone

* add clock helper functions

* add openocd cfg file

* Demo_GPIO checkpoint -- compiles and runs but no blinky LEDs

* Remove riscv-tests submodule

* Remove FPGA files, as they are no longer relevant to this Repository

* Add openocd_upload script

* Add Pinmux Mappings

Adding the pinmux mappings to the Platform Header

* Add IOF Mappings to platform header

* Re-order the IOF Mapping declarations

* Add more useful things to platform headers

* Get GPIO Demo working again (except interrupts aren't working)

* Update README with more OS packages needed

A bare ubuntu-16.04.1-server installation could not run `make tools`
without these packages.

* bump openocd to get SCKDIV fix

* Remove duplicated help text for run_debug target

* Add package to README that is needed for openocd build

Without this package I was seeing two different failures like below
when running `make tools`.

/home/scottj/freedom-e-sdk/openocd/configure: line 4533: syntax error near unexpected token `0.23'
/home/scottj/freedom-e-sdk/openocd/configure: line 4533: `PKG_PROG_PKG_CONFIG(0.23)'
Makefile:70: recipe for target '/home/scottj/freedom-e-sdk/toolchain/bin/openocd' failed
make: *** [/home/scottj/freedom-e-sdk/toolchain/bin/openocd] Error 2

... or ...

+ autoconf
configure.ac:12: error: possibly undefined macro: AC_MSG_WARN
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:240: error: possibly undefined macro: AC_MSG_NOTICE
configure.ac:342: error: possibly undefined macro: AC_DEFINE
Makefile:70: recipe for target '/home/scottj/freedom-e-sdk/toolchain/bin/openocd' failed
make: *** [/home/scottj/freedom-e-sdk/toolchain/bin/openocd] Error 1

* Bump OpenOCD to not overwrite SCKDIV when flashing

* Roll back CoreMark
---
 bsp/env/freedom-e300-arty/init.c | 61 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 bsp/env/freedom-e300-arty/init.c

(limited to 'bsp/env/freedom-e300-arty/init.c')

diff --git a/bsp/env/freedom-e300-arty/init.c b/bsp/env/freedom-e300-arty/init.c
new file mode 100644
index 0000000..36272f7
--- /dev/null
+++ b/bsp/env/freedom-e300-arty/init.c
@@ -0,0 +1,61 @@
+#include <stdint.h>
+#include <unistd.h>
+
+#include "platform.h"
+#include "encoding.h"
+
+extern int main(int argc, char** argv);
+
+uint32_t get_cpu_freq()
+{
+  return 65000000;
+}
+
+static void uart_init(size_t baud_rate)
+{
+  GPIO_REG(GPIO_IOF_SEL) &= ~IOF0_UART0_MASK;
+  GPIO_REG(GPIO_IOF_EN) |= IOF0_UART0_MASK;
+  UART0_REG(UART_REG_DIV) = get_cpu_freq() / baud_rate - 1;
+  UART0_REG(UART_REG_TXCTRL) |= UART_TXEN;
+}
+
+
+#ifdef USE_PLIC
+extern void handle_m_ext_interrupt();
+#endif
+
+#ifdef USE_M_TIME
+extern void handle_m_time_interrupt();
+#endif
+
+uintptr_t handle_trap(uintptr_t mcause, uintptr_t epc)
+{
+  if (0){
+#ifdef USE_PLIC
+    // External Machine-Level interrupt from PLIC
+  } else if ((mcause & MCAUSE_INT) && ((mcause & MCAUSE_CAUSE) == IRQ_M_EXT)) {
+    handle_m_ext_interrupt();
+#endif
+#ifdef USE_M_TIME
+    // External Machine-Level interrupt from PLIC
+  } else if ((mcause & MCAUSE_INT) && ((mcause & MCAUSE_CAUSE) == IRQ_M_TIMER)){
+    handle_m_time_interrupt();
+#endif
+  }
+  else {
+    write(1, "trap\n", 5);
+    _exit(1 + mcause);
+  }
+  return epc;
+}
+
+void _init()
+{
+  uart_init(115200);
+
+  printf("core freq at %d Hz\n", get_cpu_freq());
+
+  write_csr(mtvec, &handle_trap);
+  
+  _exit(main(0, NULL));
+}
-- 
cgit v1.2.1-18-gbd029