diff options
Diffstat (limited to 'arch/mips/loongson/fuloong-2e')
| -rw-r--r-- | arch/mips/loongson/fuloong-2e/Makefile | 7 | ||||
| -rw-r--r-- | arch/mips/loongson/fuloong-2e/irq.c | 71 | ||||
| -rw-r--r-- | arch/mips/loongson/fuloong-2e/reset.c | 23 |
3 files changed, 101 insertions, 0 deletions
diff --git a/arch/mips/loongson/fuloong-2e/Makefile b/arch/mips/loongson/fuloong-2e/Makefile new file mode 100644 index 0000000..3aba5fc --- /dev/null +++ b/arch/mips/loongson/fuloong-2e/Makefile @@ -0,0 +1,7 @@ +# +# Makefile for Lemote Fuloong2e mini-PC board. +# + +obj-y += irq.o reset.o + +EXTRA_CFLAGS += -Werror diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c new file mode 100644 index 0000000..7888cf6 --- /dev/null +++ b/arch/mips/loongson/fuloong-2e/irq.c @@ -0,0 +1,71 @@ +/* + * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology + * Author: Fuxin Zhang, zhangfx@lemote.com + * + * 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. + */ +#include <linux/interrupt.h> + +#include <asm/irq_cpu.h> +#include <asm/i8259.h> + +#include <loongson.h> + +static void i8259_irqdispatch(void) +{ + int irq; + + irq = i8259_irq(); + if (irq >= 0) + do_IRQ(irq); + else + spurious_interrupt(); +} + +asmlinkage void mach_irq_dispatch(unsigned int pending) +{ + if (pending & CAUSEF_IP7) + do_IRQ(MIPS_CPU_IRQ_BASE + 7); + else if (pending & CAUSEF_IP6) /* perf counter loverflow */ + do_IRQ(LOONGSON2_PERFCNT_IRQ); + else if (pending & CAUSEF_IP5) + i8259_irqdispatch(); + else if (pending & CAUSEF_IP2) + bonito_irqdispatch(); + else + spurious_interrupt(); +} + +static struct irqaction cascade_irqaction = { + .handler = no_action, + .name = "cascade", +}; + +void __init set_irq_trigger_mode(void) +{ + /* most bonito irq should be level triggered */ + BONITO_INTEDGE = BONITO_ICU_SYSTEMERR | BONITO_ICU_MASTERERR | + BONITO_ICU_RETRYERR | BONITO_ICU_MBOXES; +} + +void __init mach_init_irq(void) +{ + /* init all controller + * 0-15 ------> i8259 interrupt + * 16-23 ------> mips cpu interrupt + * 32-63 ------> bonito irq + */ + + /* Sets the first-level interrupt dispatcher. */ + mips_cpu_irq_init(); + init_i8259_irqs(); + bonito_irq_init(); + + /* bonito irq at IP2 */ + setup_irq(MIPS_CPU_IRQ_BASE + 2, &cascade_irqaction); + /* 8259 irq at IP5 */ + setup_irq(MIPS_CPU_IRQ_BASE + 5, &cascade_irqaction); +} diff --git a/arch/mips/loongson/fuloong-2e/reset.c b/arch/mips/loongson/fuloong-2e/reset.c new file mode 100644 index 0000000..677fe18 --- /dev/null +++ b/arch/mips/loongson/fuloong-2e/reset.c @@ -0,0 +1,23 @@ +/* Board-specific reboot/shutdown routines + * Copyright (c) 2009 Philippe Vachon <philippe@cowpig.ca> + * + * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology + * Author: Wu Zhangjin, wuzj@lemote.com + * + * 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. + */ + +#include <loongson.h> + +void mach_prepare_reboot(void) +{ + BONITO_BONGENCFG &= ~(1 << 2); + BONITO_BONGENCFG |= (1 << 2); +} + +void mach_prepare_shutdown(void) +{ +} |