diff options
Diffstat (limited to 'bsp/env/freedom-e300-hifive1')
-rw-r--r-- | bsp/env/freedom-e300-hifive1/entry.S | 95 | ||||
-rw-r--r-- | bsp/env/freedom-e300-hifive1/start.S | 51 |
2 files changed, 0 insertions, 146 deletions
diff --git a/bsp/env/freedom-e300-hifive1/entry.S b/bsp/env/freedom-e300-hifive1/entry.S deleted file mode 100644 index cbf26eb..0000000 --- a/bsp/env/freedom-e300-hifive1/entry.S +++ /dev/null @@ -1,95 +0,0 @@ -// See LICENSE for license details - -#ifndef ENTRY_S -#define ENTRY_S - -#include "encoding.h" -#include "sifive/bits.h" - - .section .text.entry - .global trap_entry -trap_entry: - addi sp, sp, -32*REGBYTES - - STORE x1, 1*REGBYTES(sp) - STORE x2, 2*REGBYTES(sp) - STORE x3, 3*REGBYTES(sp) - STORE x4, 4*REGBYTES(sp) - STORE x5, 5*REGBYTES(sp) - STORE x6, 6*REGBYTES(sp) - STORE x7, 7*REGBYTES(sp) - STORE x8, 8*REGBYTES(sp) - STORE x9, 9*REGBYTES(sp) - STORE x10, 10*REGBYTES(sp) - STORE x11, 11*REGBYTES(sp) - STORE x12, 12*REGBYTES(sp) - STORE x13, 13*REGBYTES(sp) - STORE x14, 14*REGBYTES(sp) - STORE x15, 15*REGBYTES(sp) - STORE x16, 16*REGBYTES(sp) - STORE x17, 17*REGBYTES(sp) - STORE x18, 18*REGBYTES(sp) - STORE x19, 19*REGBYTES(sp) - STORE x20, 20*REGBYTES(sp) - STORE x21, 21*REGBYTES(sp) - STORE x22, 22*REGBYTES(sp) - STORE x23, 23*REGBYTES(sp) - STORE x24, 24*REGBYTES(sp) - STORE x25, 25*REGBYTES(sp) - STORE x26, 26*REGBYTES(sp) - STORE x27, 27*REGBYTES(sp) - STORE x28, 28*REGBYTES(sp) - STORE x29, 29*REGBYTES(sp) - STORE x30, 30*REGBYTES(sp) - STORE x31, 31*REGBYTES(sp) - - csrr a0, mcause - csrr a1, mepc - mv a2, sp - jal handle_trap - csrw mepc, a0 - - # Remain in M-mode after mret - li t0, MSTATUS_MPP - csrs mstatus, t0 - - LOAD x1, 1*REGBYTES(sp) - LOAD x2, 2*REGBYTES(sp) - LOAD x3, 3*REGBYTES(sp) - LOAD x4, 4*REGBYTES(sp) - LOAD x5, 5*REGBYTES(sp) - LOAD x6, 6*REGBYTES(sp) - LOAD x7, 7*REGBYTES(sp) - LOAD x8, 8*REGBYTES(sp) - LOAD x9, 9*REGBYTES(sp) - LOAD x10, 10*REGBYTES(sp) - LOAD x11, 11*REGBYTES(sp) - LOAD x12, 12*REGBYTES(sp) - LOAD x13, 13*REGBYTES(sp) - LOAD x14, 14*REGBYTES(sp) - LOAD x15, 15*REGBYTES(sp) - LOAD x16, 16*REGBYTES(sp) - LOAD x17, 17*REGBYTES(sp) - LOAD x18, 18*REGBYTES(sp) - LOAD x19, 19*REGBYTES(sp) - LOAD x20, 20*REGBYTES(sp) - LOAD x21, 21*REGBYTES(sp) - LOAD x22, 22*REGBYTES(sp) - LOAD x23, 23*REGBYTES(sp) - LOAD x24, 24*REGBYTES(sp) - LOAD x25, 25*REGBYTES(sp) - LOAD x26, 26*REGBYTES(sp) - LOAD x27, 27*REGBYTES(sp) - LOAD x28, 28*REGBYTES(sp) - LOAD x29, 29*REGBYTES(sp) - LOAD x30, 30*REGBYTES(sp) - LOAD x31, 31*REGBYTES(sp) - - addi sp, sp, 32*REGBYTES - mret - -.weak handle_trap -handle_trap: - j handle_trap - -#endif diff --git a/bsp/env/freedom-e300-hifive1/start.S b/bsp/env/freedom-e300-hifive1/start.S deleted file mode 100644 index 77e223d..0000000 --- a/bsp/env/freedom-e300-hifive1/start.S +++ /dev/null @@ -1,51 +0,0 @@ -// See LICENSE for license details. - - .section .init - .globl _start - .type _start,@function - -_start: - la gp, _gp - la sp, _sp - - /* Load data section */ - la a0, _data_lma - la a1, _data - la a2, _edata - bgeu a1, a2, 2f -1: - lw t0, (a0) - sw t0, (a1) - addi a0, a0, 4 - addi a1, a1, 4 - bltu a1, a2, 1b -2: - - /* Clear bss section */ - la a0, __bss_start - la a1, _end - bgeu a0, a1, 2f -1: - sw zero, (a0) - addi a0, a0, 4 - bltu a0, a1, 1b -2: - - /* Call global constructors */ - la a0, __libc_fini_array - call atexit - call __libc_init_array - -#ifndef __riscv_float_abi_soft - /* Enable FPU */ - li t0, MSTATUS_FS - csrs mstatus, t0 - csrr t1, mstatus - and t1, t1, t0 - beqz t1, 1f - fssr x0 -1: -#endif - - call main - tail exit |