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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/mips/pic32/common | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/pic32/common')
| -rw-r--r-- | arch/mips/pic32/common/Makefile | 6 | ||||
| -rw-r--r-- | arch/mips/pic32/common/irq.c | 13 | ||||
| -rw-r--r-- | arch/mips/pic32/common/reset.c | 54 |
3 files changed, 73 insertions, 0 deletions
diff --git a/arch/mips/pic32/common/Makefile b/arch/mips/pic32/common/Makefile new file mode 100644 index 000000000..a60750ab7 --- /dev/null +++ b/arch/mips/pic32/common/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Joshua Henderson, <joshua.henderson@microchip.com> +# Copyright (C) 2015 Microchip Technology, Inc. All rights reserved. +# +obj-y = reset.o irq.o diff --git a/arch/mips/pic32/common/irq.c b/arch/mips/pic32/common/irq.c new file mode 100644 index 000000000..fb00b797b --- /dev/null +++ b/arch/mips/pic32/common/irq.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + */ +#include <linux/init.h> +#include <linux/irqchip.h> +#include <asm/irq.h> + +void __init arch_init_irq(void) +{ + irqchip_init(); +} diff --git a/arch/mips/pic32/common/reset.c b/arch/mips/pic32/common/reset.c new file mode 100644 index 000000000..a5fd7a8e2 --- /dev/null +++ b/arch/mips/pic32/common/reset.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + */ +#include <linux/init.h> +#include <linux/pm.h> +#include <asm/reboot.h> +#include <asm/mach-pic32/pic32.h> + +#define PIC32_RSWRST 0x10 + +static void pic32_halt(void) +{ + while (1) { + __asm__(".set push;\n" + ".set arch=r4000;\n" + "wait;\n" + ".set pop;\n" + ); + } +} + +static void pic32_machine_restart(char *command) +{ + void __iomem *reg = + ioremap(PIC32_BASE_RESET + PIC32_RSWRST, sizeof(u32)); + + pic32_syskey_unlock(); + + /* magic write/read */ + __raw_writel(1, reg); + (void)__raw_readl(reg); + + pic32_halt(); +} + +static void pic32_machine_halt(void) +{ + local_irq_disable(); + + pic32_halt(); +} + +static int __init mips_reboot_setup(void) +{ + _machine_restart = pic32_machine_restart; + _machine_halt = pic32_machine_halt; + pm_power_off = pic32_machine_halt; + + return 0; +} + +arch_initcall(mips_reboot_setup); |