nios2: convert altera timer to driver model

Convert altera timer to driver model.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Chin Liang See <clsee@altera.com>

2 files changed, 1 insertions, 66 deletions

diff --git a/arch/nios2/cpu/Makefile b/arch/nios2/cpu/Makefile
index c85e261..3fe7847 100644
--- a/arch/nios2/cpu/Makefile
+++ b/arch/nios2/cpu/Makefile
@@ -7,5 +7,5 @@
 
 extra-y	= start.o
 obj-y	= exceptions.o
-obj-y	+= cpu.o interrupts.o sysid.o timer.o traps.o
+obj-y	+= cpu.o interrupts.o sysid.o traps.o
 obj-y	+= fdt.o
diff --git a/arch/nios2/cpu/timer.c b/arch/nios2/cpu/timer.c
deleted file mode 100644
index b8aa9dd..0000000
--- a/arch/nios2/cpu/timer.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * (C) Copyright 2000-2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/nios2.h>
-#include <asm/types.h>
-#include <asm/io.h>
-
-struct nios_timer {
-	u32	status;		/* Timer status reg */
-	u32	control;	/* Timer control reg */
-	u32	periodl;	/* Timeout period low */
-	u32	periodh;	/* Timeout period high */
-	u32	snapl;		/* Snapshot low */
-	u32	snaph;		/* Snapshot high */
-};
-
-/* status register */
-#define NIOS_TIMER_TO		(1 << 0)	/* Timeout */
-#define NIOS_TIMER_RUN		(1 << 1)	/* Timer running */
-
-/* control register */
-#define NIOS_TIMER_ITO		(1 << 0)	/* Timeout interrupt enable */
-#define NIOS_TIMER_CONT		(1 << 1)	/* Continuous mode */
-#define NIOS_TIMER_START	(1 << 2)	/* Start timer */
-#define NIOS_TIMER_STOP		(1 << 3)	/* Stop timer */
-
-/*************************************************************************/
-unsigned long notrace timer_read_counter(void)
-{
-	struct nios_timer *tmr = (struct nios_timer *)CONFIG_SYS_TIMER_BASE;
-	u32 val;
-
-	/* Trigger update */
-	writel(0x0, &tmr->snapl);
-
-	/* Read timer value */
-	val = readl(&tmr->snapl) & 0xffff;
-	val |= (readl(&tmr->snaph) & 0xffff) << 16;
-
-	return ~val;
-}
-
-int timer_init(void)
-{
-	struct nios_timer *tmr = (struct nios_timer *)CONFIG_SYS_TIMER_BASE;
-
-	writel(0, &tmr->status);
-	writel(0, &tmr->control);
-	writel(NIOS_TIMER_STOP, &tmr->control);
-
-	writel(0xffff, &tmr->periodl);
-	writel(0xffff, &tmr->periodh);
-
-	writel(NIOS_TIMER_CONT | NIOS_TIMER_START, &tmr->control);
-
-	return 0;
-}