From a91549a8f27e63e0e537fe1c20d4845581de894f Mon Sep 17 00:00:00 2001 From: Mikael Pettersson Date: Thu, 29 Oct 2009 11:46:54 -0700 Subject: iop: clocksource support This updates the IOP platform to expose the free-running timer 1 as a clocksource object. This timer is now also properly initialised, which requires a new write_tcr1() function from the mach-specific code. Apart from the explicit initialisation, there is no functional change in how timer 1 is programmed. Tested on n2100, compile-tested for all plat-iop machines. Signed-off-by: Mikael Pettersson Signed-off-by: Dan Williams --- arch/arm/include/asm/hardware/iop3xx.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/arm/include/asm/hardware') diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h index 8d60ad267e3a..643b7b95b25b 100644 --- a/arch/arm/include/asm/hardware/iop3xx.h +++ b/arch/arm/include/asm/hardware/iop3xx.h @@ -260,6 +260,11 @@ static inline u32 read_tcr1(void) return val; } +static inline void write_tcr1(u32 val) +{ + asm volatile("mcr p6, 0, %0, c3, c1, 0" : : "r" (val)); +} + static inline void write_trr0(u32 val) { asm volatile("mcr p6, 0, %0, c4, c1, 0" : : "r" (val)); -- cgit v1.2.3