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Diffstat (limited to 'bsp/env/freedom-e300-arty/init.c')
-rw-r--r--bsp/env/freedom-e300-arty/init.c87
1 files changed, 0 insertions, 87 deletions
diff --git a/bsp/env/freedom-e300-arty/init.c b/bsp/env/freedom-e300-arty/init.c
deleted file mode 100644
index a6f4b39..0000000
--- a/bsp/env/freedom-e300-arty/init.c
+++ /dev/null
@@ -1,87 +0,0 @@
-//See LICENSE for license details.
-#include <stdint.h>
-#include <stdio.h>
-#include <unistd.h>
-
-#include "platform.h"
-#include "encoding.h"
-
-extern int main(int argc, char** argv);
-extern void trap_entry();
-
-static unsigned long get_cpu_freq()
-{
- return 65000000;
-}
-
-unsigned long get_timer_freq()
-{
- return get_cpu_freq();
-}
-
-uint64_t get_timer_value()
-{
-#if __riscv_xlen == 32
- while (1) {
- uint32_t hi = read_csr(mcycleh);
- uint32_t lo = read_csr(mcycle);
- if (hi == read_csr(mcycleh))
- return ((uint64_t)hi << 32) | lo;
- }
-#else
- return read_csr(mcycle);
-#endif
-}
-
-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, "Unhandled Trap:\n", 16);
- _exit(1 + mcause);
- }
- return epc;
-}
-
-void _init()
-{
- #ifndef NO_INIT
- uart_init(115200);
-
- printf("core freq at %d Hz\n", get_cpu_freq());
-
- write_csr(mtvec, &trap_entry);
- #endif
-}
-
-void _fini()
-{
-}