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author | Andreas Bießmann <andreas.devel@googlemail.com> | 2011-07-18 09:41:03 +0000 |
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committer | U-Boot <uboot@aari01-12.(none)> | 2011-08-03 13:00:55 +0200 |
commit | cf05528238c2ef91ad81658158616b3a75b74642 (patch) | |
tree | 65e0069b3d56f053122466fbe5d0f752707e7219 /arch/arm/cpu/arm920t/at91rm9200/timer.c | |
parent | b4dc6442915a202cc64fb7f0dc020e76d7d2e40d (diff) | |
download | u-boot-imx-cf05528238c2ef91ad81658158616b3a75b74642.zip u-boot-imx-cf05528238c2ef91ad81658158616b3a75b74642.tar.gz u-boot-imx-cf05528238c2ef91ad81658158616b3a75b74642.tar.bz2 |
ARM: remove obsolete at91rm9200
The big "ARM: remove broken boards" series deletes all boards using
obsolete arm920t/at91rm9200 arch code. Therefore we can safely remove
this code now.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Diffstat (limited to 'arch/arm/cpu/arm920t/at91rm9200/timer.c')
-rw-r--r-- | arch/arm/cpu/arm920t/at91rm9200/timer.c | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/arch/arm/cpu/arm920t/at91rm9200/timer.c b/arch/arm/cpu/arm920t/at91rm9200/timer.c deleted file mode 100644 index fbe74b6..0000000 --- a/arch/arm/cpu/arm920t/at91rm9200/timer.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - * (C) Copyright 2002 - * Lineo, Inc. <www.lineo.com> - * Bernhard Kuhn <bkuhn@lineo.com> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@sysgo.de> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -/*#include <asm/io.h>*/ -#include <asm/arch/hardware.h> -/*#include <asm/proc/ptrace.h>*/ - -/* the number of clocks per CONFIG_SYS_HZ */ -#define TIMER_LOAD_VAL (CONFIG_SYS_HZ_CLOCK/CONFIG_SYS_HZ) - -/* macro to read the 16 bit timer */ -#define READ_TIMER (tmr->TC_CV & 0x0000ffff) -AT91PS_TC tmr; - -static ulong timestamp; -static ulong lastinc; - -int timer_init (void) -{ - tmr = AT91C_BASE_TC0; - - /* enables TC1.0 clock */ - *AT91C_PMC_PCER = 1 << AT91C_ID_TC0; /* enable clock */ - - *AT91C_TCB0_BCR = 0; - *AT91C_TCB0_BMR = AT91C_TCB_TC0XC0S_NONE | AT91C_TCB_TC1XC1S_NONE | AT91C_TCB_TC2XC2S_NONE; - tmr->TC_CCR = AT91C_TC_CLKDIS; -#define AT91C_TC_CMR_CPCTRG (1 << 14) - /* set to MCLK/2 and restart the timer when the vlaue in TC_RC is reached */ - tmr->TC_CMR = AT91C_TC_TIMER_DIV1_CLOCK | AT91C_TC_CMR_CPCTRG; - - tmr->TC_IDR = ~0ul; - tmr->TC_RC = TIMER_LOAD_VAL; - lastinc = 0; - tmr->TC_CCR = AT91C_TC_SWTRG | AT91C_TC_CLKEN; - timestamp = 0; - - return (0); -} - -/* - * timer without interrupts - */ -ulong get_timer (ulong base) -{ - return get_timer_masked () - base; -} - -void __udelay (unsigned long usec) -{ - udelay_masked(usec); -} - -ulong get_timer_raw (void) -{ - ulong now = READ_TIMER; - - if (now >= lastinc) { - /* normal mode */ - timestamp += now - lastinc; - } else { - /* we have an overflow ... */ - timestamp += now + TIMER_LOAD_VAL - lastinc; - } - lastinc = now; - - return timestamp; -} - -ulong get_timer_masked (void) -{ - return get_timer_raw()/TIMER_LOAD_VAL; -} - -void udelay_masked (unsigned long usec) -{ - ulong tmo; - ulong endtime; - signed long diff; - - tmo = CONFIG_SYS_HZ_CLOCK / 1000; - tmo *= usec; - tmo /= 1000; - - endtime = get_timer_raw () + tmo; - - do { - ulong now = get_timer_raw (); - diff = endtime - now; - } while (diff >= 0); -} - -/* - * This function is derived from PowerPC code (read timebase as long long). - * On ARM it just returns the timer value. - */ -unsigned long long get_ticks(void) -{ - return get_timer(0); -} - -/* - * This function is derived from PowerPC code (timebase clock frequency). - * On ARM it returns the number of timer ticks per second. - */ -ulong get_tbclk (void) -{ - ulong tbclk; - - tbclk = CONFIG_SYS_HZ; - return tbclk; -} |