coreboot-kgpe-d16/src/soc/nvidia/tegra210/stack.S
Patrick Georgi a73b93157f tree: drop last paragraph of GPL copyright header
It encourages users from writing to the FSF without giving an address.
Linux also prefers to drop that and their checkpatch.pl (that we
imported) looks out for that.

This is the result of util/scripts/no-fsf-addresses.sh with no further
editing.

Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/11888
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-10-31 21:37:39 +01:00

41 lines
1.2 KiB
ArmAsm

/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/* Macro to initialize stack, perform seeding if required and finally call the
* function provided
* @stack_top : First address above the stack
* @stack_bottom : Lowest address on the stack
* @seed : Stack seeding required (1=yes/otherwise=no)
* @func : Function to call after initializing stack
*/
.macro stack_init stack_top, stack_bottom, seed, func
/* Check if stack seeding is required */
mov r0, #\seed
cmp r0, #1
bne call_func
/* Stack seeding */
ldr r0, =\stack_bottom
ldr r1, =\stack_top
ldr r2, =0xdeadbeef
init_stack_loop:
str r2, [r0]
add r0, #4
cmp r0, r1
bne init_stack_loop
call_func:
ldr sp, =\stack_top /* Set up stack pointer */
bl \func
.endm