Merge pull request #195 from sifive/remove-legacy

Remove legacy BSPs and Software

1 files changed, 0 insertions, 112 deletions

diff --git a/bsp/env/start.S b/bsp/env/start.S
deleted file mode 100644
index 4d1eb04..0000000
--- a/bsp/env/start.S
+++ /dev/null
@@ -1,112 +0,0 @@
-// See LICENSE for license details.
-#include <sifive/smp.h>
-#include <encoding.h>
-
-/* This is defined in sifive/platform.h, but that can't be included from
- * assembly. */
-#define CLINT_CTRL_ADDR 0x02000000
-
-	.section .init
-	.globl _start
-	.type _start,@function
-
-_start:
-	.cfi_startproc
-	.cfi_undefined ra
-.option push
-.option norelax
-	la gp, __global_pointer$
-.option pop
-	la sp, _sp
-
-#if defined(ENABLE_SMP)
-	smp_pause(t0, t1)
-#endif
-
-	/* 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
-
-#if defined(ENABLE_SMP)
-	smp_resume(t0, t1)
-
-	csrr a0, mhartid
-	bnez a0, 2f
-#endif
-
-	auipc ra, 0
-	addi sp, sp, -16
-#if __riscv_xlen == 32
-	sw ra, 8(sp)
-#else
-	sd ra, 8(sp)
-#endif
-
-	/* argc = argv = 0 */
-	li a0, 0
-	li a1, 0
-	call main
-	tail exit
-1:
-	j 1b
-
-#if defined(ENABLE_SMP)
-2:
-	la t0, trap_entry
-	csrw mtvec, t0
-
-	csrr a0, mhartid
-	la t1, _sp
-	slli t0, a0, 10
-	sub sp, t1, t0
-
-	auipc ra, 0
-	addi sp, sp, -16
-#if __riscv_xlen == 32
-	sw ra, 8(sp)
-#else
-	sd ra, 8(sp)
-#endif
-
-	call secondary_main
-	tail exit
-
-1:
-	j 1b
-#endif
-	.cfi_endproc