summaryrefslogtreecommitdiff
path: root/cpu/arm926ejs/davinci/timer.c
diff options
context:
space:
mode:
authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:11 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:24 +0200
commit84ad688473bec2875e171b71040eb9e033c6c206 (patch)
treecf181129cbdf5d833d55262f759ea2cd9cafaff7 /cpu/arm926ejs/davinci/timer.c
parent8f0fec74ac6d0f3a7134ccebafa1ed9bd8c712ba (diff)
downloadu-boot-imx-84ad688473bec2875e171b71040eb9e033c6c206.zip
u-boot-imx-84ad688473bec2875e171b71040eb9e033c6c206.tar.gz
u-boot-imx-84ad688473bec2875e171b71040eb9e033c6c206.tar.bz2
arm: Move cpu/$CPU to arch/arm/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'cpu/arm926ejs/davinci/timer.c')
-rw-r--r--cpu/arm926ejs/davinci/timer.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/cpu/arm926ejs/davinci/timer.c b/cpu/arm926ejs/davinci/timer.c
deleted file mode 100644
index 9da7443..0000000
--- a/cpu/arm926ejs/davinci/timer.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * (C) Copyright 2003
- * Texas Instruments <www.ti.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>
- *
- * (C) Copyright 2002-2004
- * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
- *
- * (C) Copyright 2004
- * Philippe Robin, ARM Ltd. <philippe.robin@arm.com>
- *
- * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
- *
- * 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>
-
-struct davinci_timer {
- u_int32_t pid12;
- u_int32_t emumgt;
- u_int32_t na1;
- u_int32_t na2;
- u_int32_t tim12;
- u_int32_t tim34;
- u_int32_t prd12;
- u_int32_t prd34;
- u_int32_t tcr;
- u_int32_t tgcr;
- u_int32_t wdtcr;
-};
-
-static struct davinci_timer * const timer =
- (struct davinci_timer *)CONFIG_SYS_TIMERBASE;
-
-#define TIMER_LOAD_VAL (CONFIG_SYS_HZ_CLOCK / CONFIG_SYS_HZ)
-#define TIM_CLK_DIV 16
-
-static ulong timestamp;
-static ulong lastinc;
-
-int timer_init(void)
-{
- /* We are using timer34 in unchained 32-bit mode, full speed */
- writel(0x0, &timer->tcr);
- writel(0x0, &timer->tgcr);
- writel(0x06 | ((TIM_CLK_DIV - 1) << 8), &timer->tgcr);
- writel(0x0, &timer->tim34);
- writel(TIMER_LOAD_VAL, &timer->prd34);
- lastinc = 0;
- timestamp = 0;
- writel(2 << 22, &timer->tcr);
-
- return(0);
-}
-
-void reset_timer(void)
-{
- writel(0x0, &timer->tcr);
- writel(0x0, &timer->tim34);
- lastinc = 0;
- timestamp = 0;
- writel(2 << 22, &timer->tcr);
-}
-
-static ulong get_timer_raw(void)
-{
- ulong now = readl(&timer->tim34);
-
- if (now >= lastinc) {
- /* normal mode */
- timestamp += now - lastinc;
- } else {
- /* overflow ... */
- timestamp += now + TIMER_LOAD_VAL - lastinc;
- }
- lastinc = now;
- return timestamp;
-}
-
-ulong get_timer(ulong base)
-{
- return((get_timer_raw() / (TIMER_LOAD_VAL / TIM_CLK_DIV)) - base);
-}
-
-void set_timer(ulong t)
-{
- timestamp = t;
-}
-
-void __udelay(unsigned long usec)
-{
- ulong tmo;
- ulong endtime;
- signed long diff;
-
- tmo = CONFIG_SYS_HZ_CLOCK / 1000;
- tmo *= usec;
- tmo /= (1000 * TIM_CLK_DIV);
-
- 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)
-{
- return CONFIG_SYS_HZ;
-}