diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2012-06-27 13:40:04 +0200 |
|---|---|---|
| committer | Andrew Lunn <andrew@lunn.ch> | 2012-07-27 16:48:14 +0200 |
| commit | 278b45b06bf721b7cf5de67a0126786c60c720e6 (patch) | |
| tree | 4e2a3af2527110f9328aebca560cf6c1cef32c1c /arch/arm/mach-kirkwood | |
| parent | 89fb2d77d5daa821e3868ea59963f28249974840 (diff) | |
| download | blackbird-obmc-linux-278b45b06bf721b7cf5de67a0126786c60c720e6.tar.gz blackbird-obmc-linux-278b45b06bf721b7cf5de67a0126786c60c720e6.zip | |
ARM: Orion: DT support for IRQ and GPIO Controllers
Both IRQ and GPIO controllers can now be represented in DT. The IRQ
controllers are setup first, and then the GPIO controllers. Interrupts
for GPIO lines are placed directly after the main interrupts in the
interrupt space.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Josh Coombs <josh.coombs@gmail.com>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Diffstat (limited to 'arch/arm/mach-kirkwood')
| -rw-r--r-- | arch/arm/mach-kirkwood/board-dt.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-kirkwood/irq.c | 38 |
2 files changed, 18 insertions, 23 deletions
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c index edc3f8a9d45e..27ac3d84016b 100644 --- a/arch/arm/mach-kirkwood/board-dt.c +++ b/arch/arm/mach-kirkwood/board-dt.c @@ -18,6 +18,7 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <mach/bridge-regs.h> +#include <plat/irq.h> #include "common.h" static struct of_device_id kirkwood_dt_match_table[] __initdata = { @@ -84,7 +85,7 @@ DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)") /* Maintainer: Jason Cooper <jason@lakedaemon.net> */ .map_io = kirkwood_map_io, .init_early = kirkwood_init_early, - .init_irq = kirkwood_init_irq, + .init_irq = orion_dt_init_irq, .timer = &kirkwood_timer, .init_machine = kirkwood_dt_init, .restart = kirkwood_restart, diff --git a/arch/arm/mach-kirkwood/irq.c b/arch/arm/mach-kirkwood/irq.c index c4c68e5b94f1..720063ffa19d 100644 --- a/arch/arm/mach-kirkwood/irq.c +++ b/arch/arm/mach-kirkwood/irq.c @@ -9,20 +9,23 @@ */ #include <linux/gpio.h> #include <linux/kernel.h> -#include <linux/init.h> #include <linux/irq.h> -#include <linux/io.h> #include <mach/bridge-regs.h> #include <plat/irq.h> -#include "common.h" -static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - BUG_ON(irq < IRQ_KIRKWOOD_GPIO_LOW_0_7); - BUG_ON(irq > IRQ_KIRKWOOD_GPIO_HIGH_16_23); +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, +}; - orion_gpio_irq_handler((irq - IRQ_KIRKWOOD_GPIO_LOW_0_7) << 3); -} +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) { @@ -32,17 +35,8 @@ void __init kirkwood_init_irq(void) /* * Initialize gpiolib for GPIOs 0-49. */ - orion_gpio_init(0, 32, GPIO_LOW_VIRT_BASE, 0, - IRQ_KIRKWOOD_GPIO_START); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_0_7, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_8_15, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_16_23, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_24_31, gpio_irq_handler); - - orion_gpio_init(32, 18, GPIO_HIGH_VIRT_BASE, 0, - IRQ_KIRKWOOD_GPIO_START + 32); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_0_7, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_8_15, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_16_23, - gpio_irq_handler); + orion_gpio_init(NULL, 0, 32, (void __iomem *)GPIO_LOW_VIRT_BASE, 0, + IRQ_KIRKWOOD_GPIO_START, gpio0_irqs); + orion_gpio_init(NULL, 32, 18, (void __iomem *)GPIO_HIGH_VIRT_BASE, 0, + IRQ_KIRKWOOD_GPIO_START + 32, gpio1_irqs); } |
