mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
ff3fdfe89b
Only one occurance of WATCHDOG_RESET is left in one assembler file. This patch changes this occurance to a direct call to watchdog_reset and then removes all the ASSEMBLY ifdef'ery in watchdog.h, as it's not needed any more to clean this mess a bit up. Signed-off-by: Stefan Roese <sr@denx.de> Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]
58 lines
1.2 KiB
ArmAsm
58 lines
1.2 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2000, 2001
|
|
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
|
|
* base on code by
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*/
|
|
|
|
#include <ppc_asm.tmpl>
|
|
#include <ppc_defs.h>
|
|
#include <config.h>
|
|
|
|
/*
|
|
* unsigned long long get_ticks(void);
|
|
*
|
|
* read timebase as "long long"
|
|
*/
|
|
.globl get_ticks
|
|
get_ticks:
|
|
1: mftbu r3
|
|
mftb r4
|
|
mftbu r5
|
|
cmp 0,r3,r5
|
|
bne 1b
|
|
blr
|
|
|
|
/*
|
|
* Delay for a number of ticks
|
|
*/
|
|
.globl wait_ticks
|
|
wait_ticks:
|
|
stwu r1, -16(r1)
|
|
mflr r0 /* save link register */
|
|
stw r0, 20(r1) /* Use r0 or GDB will be unhappy */
|
|
stw r14, 12(r1) /* save used registers */
|
|
stw r15, 8(r1)
|
|
mr r14, r3 /* save tick count */
|
|
bl get_ticks /* Get start time */
|
|
|
|
/* Calculate end time */
|
|
addc r14, r4, r14 /* Compute end time lower */
|
|
addze r15, r3 /* and end time upper */
|
|
|
|
#if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
|
|
bl schedule /* Trigger watchdog, if needed */
|
|
#endif
|
|
1: bl get_ticks /* Get current time */
|
|
subfc r4, r4, r14 /* Subtract current time from end time */
|
|
subfe. r3, r3, r15
|
|
bge 1b /* Loop until time expired */
|
|
|
|
lwz r15, 8(r1) /* restore saved registers */
|
|
lwz r14, 12(r1)
|
|
lwz r0, 20(r1)
|
|
addi r1,r1,16
|
|
mtlr r0
|
|
blr
|