diff options
Diffstat (limited to 'arch/arm/mach-kirkwood/irq.c')
| -rw-r--r-- | arch/arm/mach-kirkwood/irq.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm/mach-kirkwood/irq.c b/arch/arm/mach-kirkwood/irq.c new file mode 100644 index 00000000..2a97a2e4 --- /dev/null +++ b/arch/arm/mach-kirkwood/irq.c @@ -0,0 +1,45 @@ +/* + * arch/arm/mach-kirkwood/irq.c + * + * Kirkwood 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_KIRKWOOD_GPIO_LOW_0_7, + IRQ_KIRKWOOD_GPIO_LOW_8_15, + IRQ_KIRKWOOD_GPIO_LOW_16_23, + IRQ_KIRKWOOD_GPIO_LOW_24_31, +}; + +static int __initdata gpio1_irqs[4] = { + IRQ_KIRKWOOD_GPIO_HIGH_0_7, + IRQ_KIRKWOOD_GPIO_HIGH_8_15, + IRQ_KIRKWOOD_GPIO_HIGH_16_23, + 0, +}; + +void __init kirkwood_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); + + /* + * Initialize gpiolib for GPIOs 0-49. + */ + orion_gpio_init(NULL, 0, 32, GPIO_LOW_VIRT_BASE, 0, + IRQ_KIRKWOOD_GPIO_START, gpio0_irqs); + orion_gpio_init(NULL, 32, 18, GPIO_HIGH_VIRT_BASE, 0, + IRQ_KIRKWOOD_GPIO_START + 32, gpio1_irqs); +} |