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[POWERPC] Adapt ipic driver to new host_ops interface, add set_irq_type to set IRQ sense

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This converts ipic code to Benh's IRQ mods.  For the IPIC, IRQ sense values in the device tree equal those in include/linux/irq.h; that's 8 for low assertion (most internal IRQs on mpc83xx), and 2 for high-to-low change.

spinlocks added to [un]mask, ack operations; default handler and type now set in host_map; and redundant condition check eliminated.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Kim Phillips
2006-08-25 11:59:07 -05:00
committed by Paul Mackerras
parent bf4152dd7c
commit b9f0f1bb2b
2 changed files with 228 additions and 98 deletions
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23
arch/powerpc/sysdev/ipic.h
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@@ -15,7 +15,18 @@
#include <asm/ipic.h>
#define MPC83xx_IPIC_SIZE (0x00100)
#define NR_IPIC_INTS 128
/* External IRQS */
#define IPIC_IRQ_EXT0 48
#define IPIC_IRQ_EXT1 17
#define IPIC_IRQ_EXT7 23
/* Default Priority Registers */
#define IPIC_SIPRR_A_DEFAULT 0x05309770
#define IPIC_SIPRR_D_DEFAULT 0x05309770
#define IPIC_SMPRR_A_DEFAULT 0x05309770
#define IPIC_SMPRR_B_DEFAULT 0x05309770
/* System Global Interrupt Configuration Register */
#define SICFR_IPSA 0x00010000
@@ -31,7 +42,15 @@
struct ipic {
volatile u32 __iomem *regs;
unsigned int irq_offset;
/* The remapper for this IPIC */
struct irq_host *irqhost;
/* The "linux" controller struct */
struct irq_chip hc_irq;
/* The device node of the interrupt controller */
struct device_node *of_node;
};
struct ipic_info {