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sh4: remove watchdog.c file

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The external functions defined here are not called from anywhere. So
they, and consequently the whole file, can be dropped.

Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Rasmus Villemoes 2024-05-28 13:13:23 +02:00 committed by Stefan Roese
parent 167f841ed4
commit 73a8cdeb5c
2 changed files with 1 additions and 52 deletions
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2
arch/sh/cpu/sh4/Makefile
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@ -6,4 +6,4 @@
# (C) Copyright 2007
# Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
obj-y = cpu.o interrupts.o watchdog.o cache.o
obj-y = cpu.o interrupts.o cache.o

51
arch/sh/cpu/sh4/watchdog.c
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@ -1,51 +0,0 @@
// SPDX-License-Identifier: GPL-2.0+
#include <cpu_func.h>
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/io.h>
#define WDT_BASE WTCNT
#define WDT_WD (1 << 6)
#define WDT_RST_P (0)
#define WDT_RST_M (1 << 5)
#define WDT_ENABLE (1 << 7)
#if defined(CONFIG_WATCHDOG)
static unsigned char csr_read(void)
{
return inb(WDT_BASE + 0x04);
}
static void cnt_write(unsigned char value)
{
outl((unsigned short)value | 0x5A00, WDT_BASE + 0x00);
}
static void csr_write(unsigned char value)
{
outl((unsigned short)value | 0xA500, WDT_BASE + 0x04);
}
void watchdog_reset(void)
{
outl(0x55000000, WDT_BASE + 0x08);
}
int watchdog_init(void)
{
/* Set overflow time*/
cnt_write(0);
/* Power on reset */
csr_write(WDT_WD|WDT_RST_P|WDT_ENABLE);
return 0;
}
int watchdog_disable(void)
{
csr_write(csr_read() & ~WDT_ENABLE);
return 0;
}
#endif