Commit 6d08e22a authored by Daniel Schwierzeck's avatar Daniel Schwierzeck
Browse files

MIPS: fix setup of initial stack frame



To get correct stack walking and backtrace functionality in gdb,
registers fp and ra should be initialized before calling board_init_f
or board_init_r. Thus allocating stack space and zeroing it as it is
currently done in board.c becomes obsolete.
Signed-off-by: default avatarDaniel Schwierzeck <daniel.schwierzeck@gmail.com>
parent 85bafb6d
......@@ -136,10 +136,11 @@ reset:
/* Set up temporary stack */
li sp, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET
move fp, sp
la t9, board_init_f
jr t9
nop
move ra, zero
/*
* void relocate_code (addr_sp, gd, addr_moni)
......@@ -155,6 +156,7 @@ reset:
.ent relocate_code
relocate_code:
move sp, a0 # set new stack pointer
move fp, sp
move s0, a1 # save gd in s0
move s2, a2 # save destination address in s2
......@@ -260,8 +262,9 @@ in_ram:
addi t1, 4
move a0, s0 # a0 <-- gd
move a1, s2
la t9, board_init_r
jr t9
move a1, s2
move ra, zero
.end relocate_code
......@@ -130,10 +130,11 @@ reset:
/* Set up temporary stack */
dli sp, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET
move fp, sp
dla t9, board_init_f
jr t9
nop
move ra, zero
/*
* void relocate_code (addr_sp, gd, addr_moni)
......@@ -149,6 +150,7 @@ reset:
.ent relocate_code
relocate_code:
move sp, a0 # set new stack pointer
move fp, sp
move s0, a1 # save gd in s0
move s2, a2 # save destination address in s2
......@@ -254,8 +256,9 @@ in_ram:
daddi t1, 8
move a0, s0 # a0 <-- gd
move a1, s2
dla t9, board_init_r
jr t9
move a1, s2
move ra, zero
.end relocate_code
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