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authorKeguang Zhang <keguang.zhang@gmail.com>2023-05-11 15:06:48 +0300
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2023-05-23 11:48:30 +0300
commit1004be040f46790271516a1e1560014f97cc3ebd (patch)
tree35db10af4944f8501fc3ccd8812c30cab7242e5d
parent745b7908ecdbec3a3077cd770264c59cdc0efdfd (diff)
downloadlinux-1004be040f46790271516a1e1560014f97cc3ebd.tar.xz
MIPS: Loongson32: Remove reset.c
Commit 2a31bf20808a ("watchdog: loongson1_wdt: Implement restart handler") implmented .restart ops, Then, _machine_restart is no longer needed. The _machine_halt and pm_power_off are also unnecessary, which contain no hardware operations. Therefore, remove the entire reset.c and related header file. Update the Makefile accordingly. Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
-rw-r--r--arch/mips/include/asm/mach-loongson32/loongson1.h1
-rw-r--r--arch/mips/include/asm/mach-loongson32/regs-wdt.h15
-rw-r--r--arch/mips/loongson32/common/Makefile2
-rw-r--r--arch/mips/loongson32/common/reset.c51
4 files changed, 1 insertions, 68 deletions
diff --git a/arch/mips/include/asm/mach-loongson32/loongson1.h b/arch/mips/include/asm/mach-loongson32/loongson1.h
index eb3ddbec1752..50358f1a6181 100644
--- a/arch/mips/include/asm/mach-loongson32/loongson1.h
+++ b/arch/mips/include/asm/mach-loongson32/loongson1.h
@@ -49,6 +49,5 @@
#include <regs-mux.h>
#include <regs-pwm.h>
#include <regs-rtc.h>
-#include <regs-wdt.h>
#endif /* __ASM_MACH_LOONGSON32_LOONGSON1_H */
diff --git a/arch/mips/include/asm/mach-loongson32/regs-wdt.h b/arch/mips/include/asm/mach-loongson32/regs-wdt.h
deleted file mode 100644
index c6d345fe13f2..000000000000
--- a/arch/mips/include/asm/mach-loongson32/regs-wdt.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
- *
- * Loongson 1 Watchdog Register Definitions.
- */
-
-#ifndef __ASM_MACH_LOONGSON32_REGS_WDT_H
-#define __ASM_MACH_LOONGSON32_REGS_WDT_H
-
-#define WDT_EN 0x0
-#define WDT_TIMER 0x4
-#define WDT_SET 0x8
-
-#endif /* __ASM_MACH_LOONGSON32_REGS_WDT_H */
diff --git a/arch/mips/loongson32/common/Makefile b/arch/mips/loongson32/common/Makefile
index 7b49c8260706..f3950d308187 100644
--- a/arch/mips/loongson32/common/Makefile
+++ b/arch/mips/loongson32/common/Makefile
@@ -3,4 +3,4 @@
# Makefile for common code of loongson1 based machines.
#
-obj-y += time.o irq.o platform.o prom.o reset.o setup.o
+obj-y += time.o irq.o platform.o prom.o setup.o
diff --git a/arch/mips/loongson32/common/reset.c b/arch/mips/loongson32/common/reset.c
deleted file mode 100644
index 0c7399b303fb..000000000000
--- a/arch/mips/loongson32/common/reset.c
+++ /dev/null
@@ -1,51 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
- */
-
-#include <linux/io.h>
-#include <linux/pm.h>
-#include <linux/sizes.h>
-#include <asm/idle.h>
-#include <asm/reboot.h>
-
-#include <loongson1.h>
-
-static void __iomem *wdt_reg_base;
-
-static void ls1x_halt(void)
-{
- while (1) {
- if (cpu_wait)
- cpu_wait();
- }
-}
-
-static void ls1x_restart(char *command)
-{
- __raw_writel(0x1, wdt_reg_base + WDT_EN);
- __raw_writel(0x1, wdt_reg_base + WDT_TIMER);
- __raw_writel(0x1, wdt_reg_base + WDT_SET);
-
- ls1x_halt();
-}
-
-static void ls1x_power_off(void)
-{
- ls1x_halt();
-}
-
-static int __init ls1x_reboot_setup(void)
-{
- wdt_reg_base = ioremap(LS1X_WDT_BASE, (SZ_4 + SZ_8));
- if (!wdt_reg_base)
- panic("Failed to remap watchdog registers");
-
- _machine_restart = ls1x_restart;
- _machine_halt = ls1x_halt;
- pm_power_off = ls1x_power_off;
-
- return 0;
-}
-
-arch_initcall(ls1x_reboot_setup);