From d7e7e4ffc64f700e876a9f3b2727febaa2041221 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Wed, 28 Mar 2012 19:22:46 +0900 Subject: [PATCH] ARM: mach-shmobile: Introduce INTC_IRQ_PINS_16H Add INTC_IRQ_PINS_16H to allow broken out support of the the high 16 external interrupt pins. On SoCs with 32 external interrupt pins the interrupt vectors for the low 16 and the high 16 interrupt pins are sparesly populated. The low 16 are at 0x0200 and high 16 are at 0x3200 which with current macros results in a separation of 384 linux interrupts. This sparse population makes it unsuitable with a single IRQ domain to cover the full IRQ range, so this macro breaks out the 32 pins into two separate 16 bit controllers to allow two independent INTC instances with two separate IRQ domains. Signed-off-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/include/mach/intc.h | 44 ++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/arch/arm/mach-shmobile/include/mach/intc.h b/arch/arm/mach-shmobile/include/mach/intc.h index 8b22258..a5603c7 100644 --- a/arch/arm/mach-shmobile/include/mach/intc.h +++ b/arch/arm/mach-shmobile/include/mach/intc.h @@ -142,6 +142,50 @@ static struct intc_desc p ## _desc __initdata = { \ p ## _sense_registers, p ## _ack_registers) \ } +#define INTC_IRQ_PINS_16H(p, base, vect, str) \ + \ +static struct resource p ## _resources[] __initdata = { \ + [0] = { \ + .start = base, \ + .end = base + 0x64, \ + .flags = IORESOURCE_MEM, \ + }, \ +}; \ + \ +enum { \ + p ## _UNUSED = 0, \ + INTC_IRQ_PINS_ENUM_16H(p), \ +}; \ + \ +static struct intc_vect p ## _vectors[] __initdata = { \ + INTC_IRQ_PINS_VECT_16H(p, vect), \ +}; \ + \ +static struct intc_mask_reg p ## _mask_registers[] __initdata = { \ + INTC_IRQ_PINS_MASK_16H(p, base), \ +}; \ + \ +static struct intc_prio_reg p ## _prio_registers[] __initdata = { \ + INTC_IRQ_PINS_PRIO_16H(p, base), \ +}; \ + \ +static struct intc_sense_reg p ## _sense_registers[] __initdata = { \ + INTC_IRQ_PINS_SENSE_16H(p, base), \ +}; \ + \ +static struct intc_mask_reg p ## _ack_registers[] __initdata = { \ + INTC_IRQ_PINS_ACK_16H(p, base), \ +}; \ + \ +static struct intc_desc p ## _desc __initdata = { \ + .name = str, \ + .resource = p ## _resources, \ + .num_resources = ARRAY_SIZE(p ## _resources), \ + .hw = INTC_HW_DESC(p ## _vectors, NULL, \ + p ## _mask_registers, p ## _prio_registers, \ + p ## _sense_registers, p ## _ack_registers) \ +} + #define INTC_IRQ_PINS_32(p, base, vect, str) \ \ static struct resource p ## _resources[] __initdata = { \ -- 2.7.4