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| author | Andrew Ruder <andrew.ruder@elecsyscorp.com> | 2015-08-12 13:18:31 -0500 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-08-24 20:30:37 +0200 |
| commit | 7d211fec96d1d6b6d828f3bb4abc59180f6e3556 (patch) | |
| tree | a10e3e64eb5fd80cbace76d51f2e99179a7c2b51 /arch/arm/include/asm/arch-pxa | |
| parent | 07a8e6d6ee04de7c95de9824e3d1821744f92970 (diff) | |
| download | talos-obmc-uboot-7d211fec96d1d6b6d828f3bb4abc59180f6e3556.tar.gz talos-obmc-uboot-7d211fec96d1d6b6d828f3bb4abc59180f6e3556.zip | |
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>
Diffstat (limited to 'arch/arm/include/asm/arch-pxa')
| -rw-r--r-- | arch/arm/include/asm/arch-pxa/config.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-pxa/config.h b/arch/arm/include/asm/arch-pxa/config.h new file mode 100644 index 0000000000..5836945214 --- /dev/null +++ b/arch/arm/include/asm/arch-pxa/config.h @@ -0,0 +1,25 @@ +/* + * 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_ */ |
