diff options
Diffstat (limited to 'arch/mips/txx9/jmr3927/irq.c')
| -rw-r--r-- | arch/mips/txx9/jmr3927/irq.c | 75 |
1 files changed, 16 insertions, 59 deletions
diff --git a/arch/mips/txx9/jmr3927/irq.c b/arch/mips/txx9/jmr3927/irq.c index 070c9a115e5..c22c859a2c4 100644 --- a/arch/mips/txx9/jmr3927/irq.c +++ b/arch/mips/txx9/jmr3927/irq.c @@ -30,15 +30,12 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/init.h> -#include <linux/sched.h> #include <linux/types.h> #include <linux/interrupt.h> +#include <linux/irq.h> #include <asm/io.h> #include <asm/mipsregs.h> -#include <asm/system.h> - -#include <asm/processor.h> #include <asm/txx9/generic.h> #include <asm/txx9/jmr3927.h> @@ -46,31 +43,24 @@ #error JMR3927_IRQ_END > NR_IRQS #endif -static unsigned char irc_level[TX3927_NUM_IR] = { - 5, 5, 5, 5, 5, 5, /* INT[5:0] */ - 7, 7, /* SIO */ - 5, 5, 5, 0, 0, /* DMA, PIO, PCI */ - 6, 6, 6 /* TMR */ -}; - /* * CP0_STATUS is a thread's resource (saved/restored on context switch). * So disable_irq/enable_irq MUST handle IOC/IRC registers. */ -static void mask_irq_ioc(unsigned int irq) +static void mask_irq_ioc(struct irq_data *d) { /* 0: mask */ - unsigned int irq_nr = irq - JMR3927_IRQ_IOC; + unsigned int irq_nr = d->irq - JMR3927_IRQ_IOC; unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR); unsigned int bit = 1 << irq_nr; jmr3927_ioc_reg_out(imask & ~bit, JMR3927_IOC_INTM_ADDR); /* flush write buffer */ (void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR); } -static void unmask_irq_ioc(unsigned int irq) +static void unmask_irq_ioc(struct irq_data *d) { /* 0: mask */ - unsigned int irq_nr = irq - JMR3927_IRQ_IOC; + unsigned int irq_nr = d->irq - JMR3927_IRQ_IOC; unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR); unsigned int bit = 1 << irq_nr; jmr3927_ioc_reg_out(imask | bit, JMR3927_IOC_INTM_ADDR); @@ -103,26 +93,16 @@ static int jmr3927_irq_dispatch(int pending) return irq; } -#ifdef CONFIG_PCI -static irqreturn_t jmr3927_pcierr_interrupt(int irq, void *dev_id) -{ - printk(KERN_WARNING "PCI error interrupt (irq 0x%x).\n", irq); - printk(KERN_WARNING "pcistat:%02x, lbstat:%04lx\n", - tx3927_pcicptr->pcistat, tx3927_pcicptr->lbstat); - - return IRQ_HANDLED; -} -static struct irqaction pcierr_action = { - .handler = jmr3927_pcierr_interrupt, - .mask = CPU_MASK_NONE, - .name = "PCI error", +static struct irq_chip jmr3927_irq_ioc = { + .name = "jmr3927_ioc", + .irq_mask = mask_irq_ioc, + .irq_unmask = unmask_irq_ioc, }; -#endif - -static void __init jmr3927_irq_init(void); void __init jmr3927_irq_setup(void) { + int i; + txx9_irq_dispatch = jmr3927_irq_dispatch; /* Now, interrupt control disabled, */ /* all IRC interrupts are masked, */ @@ -138,34 +118,11 @@ void __init jmr3927_irq_setup(void) /* clear PCI Reset interrupts */ jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR); - jmr3927_irq_init(); + tx3927_irq_init(); + for (i = JMR3927_IRQ_IOC; i < JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC; i++) + irq_set_chip_and_handler(i, &jmr3927_irq_ioc, + handle_level_irq); /* setup IOC interrupt 1 (PCI, MODEM) */ - set_irq_chained_handler(JMR3927_IRQ_IOCINT, handle_simple_irq); - -#ifdef CONFIG_PCI - setup_irq(JMR3927_IRQ_IRC_PCI, &pcierr_action); -#endif - - /* enable all CPU interrupt bits. */ - set_c0_status(ST0_IM); /* IE bit is still 0. */ -} - -static struct irq_chip jmr3927_irq_ioc = { - .name = "jmr3927_ioc", - .ack = mask_irq_ioc, - .mask = mask_irq_ioc, - .mask_ack = mask_irq_ioc, - .unmask = unmask_irq_ioc, -}; - -static void __init jmr3927_irq_init(void) -{ - u32 i; - - txx9_irq_init(TX3927_IRC_REG); - for (i = 0; i < TXx9_MAX_IR; i++) - txx9_irq_set_pri(i, irc_level[i]); - for (i = JMR3927_IRQ_IOC; i < JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC; i++) - set_irq_chip_and_handler(i, &jmr3927_irq_ioc, handle_level_irq); + irq_set_chained_handler(JMR3927_IRQ_IOCINT, handle_simple_irq); } |