diff options
Diffstat (limited to 'kernel/arch/arm/mach-mv78xx0/irq.c')
-rw-r--r-- | kernel/arch/arm/mach-mv78xx0/irq.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-mv78xx0/irq.c b/kernel/arch/arm/mach-mv78xx0/irq.c new file mode 100644 index 000000000..320734440 --- /dev/null +++ b/kernel/arch/arm/mach-mv78xx0/irq.c @@ -0,0 +1,40 @@ +/* + * arch/arm/mach-mv78xx0/irq.c + * + * MV78xx0 IRQ handling. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ +#include <linux/gpio.h> +#include <linux/kernel.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <mach/bridge-regs.h> +#include <plat/orion-gpio.h> +#include <plat/irq.h> +#include "common.h" + +static int __initdata gpio0_irqs[4] = { + IRQ_MV78XX0_GPIO_0_7, + IRQ_MV78XX0_GPIO_8_15, + IRQ_MV78XX0_GPIO_16_23, + IRQ_MV78XX0_GPIO_24_31, +}; + +void __init mv78xx0_init_irq(void) +{ + orion_irq_init(0, IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF); + orion_irq_init(32, IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF); + orion_irq_init(64, IRQ_VIRT_BASE + IRQ_MASK_ERR_OFF); + + /* + * Initialize gpiolib for GPIOs 0-31. (The GPIO interrupt mask + * registers for core #1 are at an offset of 0x18 from those of + * core #0.) + */ + orion_gpio_init(NULL, 0, 32, GPIO_VIRT_BASE, + mv78xx0_core_index() ? 0x18 : 0, + IRQ_MV78XX0_GPIO_START, gpio0_irqs); +} |