u-boot-brain/arch/arm/include/asm/arch-pxa/config.h
Andrew Ruder 7d211fec96 arm: pxa: use common timer functions
This patch moves pxa to the common timer functions added in commit

  8dfafdd - Introduce common timer functions <Rob Herring>

The (removed) pxa timer code (specifically __udelay()) could deadlock at
the 32-bit boundary of get_ticks().  get_ticks() returned a 32-bit value
cast up to a 64-bit value.  If get_ticks() + tmo in __udelay() crossed
the 32-bit boundary, the while condition became unconditionally true and
locked the processor.  Rather than patch the specific pxa issues, simply
move everything over to the common code.

Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsuiko.com>
2015-08-24 20:30:37 +02:00

26 lines
558 B
C

/*
* Copyright (C) 2014 Andrew Ruder <andrew.ruder@elecsyscorp.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ASM_ARM_PXA_CONFIG_
#define _ASM_ARM_PXA_CONFIG_
#include <asm/arch/pxa-regs.h>
/*
* Generic timer support
*/
#if defined(CONFIG_CPU_PXA27X) || defined(CONFIG_CPU_MONAHANS)
#define CONFIG_SYS_TIMER_RATE 3250000
#elif defined(CONFIG_CPU_PXA25X)
#define CONFIG_SYS_TIMER_RATE 3686400
#else
#error "Timer frequency unknown - please config PXA CPU type"
#endif
#define CONFIG_SYS_TIMER_COUNTER OSCR
#endif /* _ASM_ARM_PXA_CONFIG_ */