diff options
Diffstat (limited to 'arch/mips/cpu')
| -rw-r--r-- | arch/mips/cpu/mips32/start.S | 24 | ||||
| -rw-r--r-- | arch/mips/cpu/mips64/start.S | 24 |
2 files changed, 46 insertions, 2 deletions
diff --git a/arch/mips/cpu/mips32/start.S b/arch/mips/cpu/mips32/start.S index 5946859..36b92cc 100644 --- a/arch/mips/cpu/mips32/start.S +++ b/arch/mips/cpu/mips32/start.S @@ -140,9 +140,31 @@ reset: #endif /* Set up temporary stack */ - li sp, CONFIG_SYS_INIT_SP_ADDR + li t0, -16 + li t1, CONFIG_SYS_INIT_SP_ADDR + and sp, t1, t0 # force 16 byte alignment + sub sp, sp, GD_SIZE # reserve space for gd + and sp, sp, t0 # force 16 byte alignment + move k0, sp # save gd pointer +#ifdef CONFIG_SYS_MALLOC_F_LEN + li t2, CONFIG_SYS_MALLOC_F_LEN + sub sp, sp, t2 # reserve space for early malloc + and sp, sp, t0 # force 16 byte alignment +#endif move fp, sp + /* Clear gd */ + move t0, k0 +1: + sw zero, 0(t0) + blt t0, t1, 1b + addi t0, 4 + +#ifdef CONFIG_SYS_MALLOC_F_LEN + addu t0, k0, GD_MALLOC_BASE # gd->malloc_base offset + sw sp, 0(t0) +#endif + la t9, board_init_f jr t9 move ra, zero diff --git a/arch/mips/cpu/mips64/start.S b/arch/mips/cpu/mips64/start.S index 81df923..471bc1e 100644 --- a/arch/mips/cpu/mips64/start.S +++ b/arch/mips/cpu/mips64/start.S @@ -134,9 +134,31 @@ reset: #endif /* Set up temporary stack */ - dli sp, CONFIG_SYS_INIT_SP_ADDR + dli t0, -16 + dli t1, CONFIG_SYS_INIT_SP_ADDR + and sp, t1, t0 # force 16 byte alignment + dsub sp, sp, GD_SIZE # reserve space for gd + and sp, sp, t0 # force 16 byte alignment + move k0, sp # save gd pointer +#ifdef CONFIG_SYS_MALLOC_F_LEN + dli t2, CONFIG_SYS_MALLOC_F_LEN + dsub sp, sp, t2 # reserve space for early malloc + and sp, sp, t0 # force 16 byte alignment +#endif move fp, sp + /* Clear gd */ + move t0, k0 +1: + sw zero, 0(t0) + blt t0, t1, 1b + daddi t0, 4 + +#ifdef CONFIG_SYS_MALLOC_F_LEN + daddu t0, k0, GD_MALLOC_BASE # gd->malloc_base offset + sw sp, 0(t0) +#endif + dla t9, board_init_f jr t9 move ra, zero |