.section .text.start, "ax", @progbits
.globl _start
_start:
  .option push
  .option norelax
  la gp, __global_pointer$
  .option pop

  li t0, 0x6000
  csrs mstatus, t0

  # Keep this numeric: BootROM code is too far from DTIM for a PC-relative la.
  li sp, (BSP_DTIM_BASE + BSP_DTIM_SIZE)

  # BSS is in DTIM while this code runs from BootROM; load far addresses from ROM literals.
  la t2, bss_bounds
  ld t0, 0(t2)
  ld t1, 8(t2)
1:
  bgeu t0, t1, 2f
  sd zero, 0(t0)
  addi t0, t0, 8
  j 1b

2:
  call bsp_init
  call main
  li t0, 0x5a5a0000
  or a0, a0, t0
  csrw mscratch, a0
  fence

3:
  wfi
  j 3b

.section .rodata, "a", @progbits
.align 3
bss_bounds:
  .dword __bss_start
  .dword __bss_end