diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-ux500/timer.c')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-ux500/timer.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-ux500/timer.c b/ANDROID_3.4.5/arch/arm/mach-ux500/timer.c deleted file mode 100644 index d37df98b..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-ux500/timer.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * Copyright (C) ST-Ericsson SA 2011 - * - * License Terms: GNU General Public License v2 - * Author: Mattias Wallin <mattias.wallin@stericsson.com> for ST-Ericsson - */ -#include <linux/io.h> -#include <linux/errno.h> -#include <linux/clksrc-dbx500-prcmu.h> -#include <linux/of.h> - -#include <asm/smp_twd.h> - -#include <plat/mtu.h> - -#include <mach/setup.h> -#include <mach/hardware.h> -#include <mach/irqs.h> - -#ifdef CONFIG_HAVE_ARM_TWD -static DEFINE_TWD_LOCAL_TIMER(u5500_twd_local_timer, - U5500_TWD_BASE, IRQ_LOCALTIMER); -static DEFINE_TWD_LOCAL_TIMER(u8500_twd_local_timer, - U8500_TWD_BASE, IRQ_LOCALTIMER); - -static void __init ux500_twd_init(void) -{ - struct twd_local_timer *twd_local_timer; - int err; - - twd_local_timer = cpu_is_u5500() ? &u5500_twd_local_timer : - &u8500_twd_local_timer; - - if (of_have_populated_dt()) - twd_local_timer_of_register(); - else { - err = twd_local_timer_register(twd_local_timer); - if (err) - pr_err("twd_local_timer_register failed %d\n", err); - } -} -#else -#define ux500_twd_init() do { } while(0) -#endif - -static void __init ux500_timer_init(void) -{ - void __iomem *mtu_timer_base; - void __iomem *prcmu_timer_base; - - if (cpu_is_u5500()) { - mtu_timer_base = __io_address(U5500_MTU0_BASE); - prcmu_timer_base = __io_address(U5500_PRCMU_TIMER_3_BASE); - } else if (cpu_is_u8500()) { - mtu_timer_base = __io_address(U8500_MTU0_BASE); - prcmu_timer_base = __io_address(U8500_PRCMU_TIMER_4_BASE); - } else { - ux500_unknown_soc(); - } - - /* - * Here we register the timerblocks active in the system. - * Localtimers (twd) is started when both cpu is up and running. - * MTU register a clocksource, clockevent and sched_clock. - * Since the MTU is located in the VAPE power domain - * it will be cleared in sleep which makes it unsuitable. - * We however need it as a timer tick (clockevent) - * during boot to calibrate delay until twd is started. - * RTC-RTT have problems as timer tick during boot since it is - * depending on delay which is not yet calibrated. RTC-RTT is in the - * always-on powerdomain and is used as clockevent instead of twd when - * sleeping. - * The PRCMU timer 4(3 for DB5500) register a clocksource and - * sched_clock with higher rating then MTU since is always-on. - * - */ - - nmdk_timer_init(mtu_timer_base); - clksrc_dbx500_prcmu_init(prcmu_timer_base); - ux500_twd_init(); -} - -static void ux500_timer_reset(void) -{ - nmdk_clkevt_reset(); - nmdk_clksrc_reset(); -} - -struct sys_timer ux500_timer = { - .init = ux500_timer_init, - .resume = ux500_timer_reset, -}; |