diff options
author | David Woodhouse <dwmw2@infradead.org> | 2007-10-13 14:43:54 +0100 |
---|---|---|
committer | David Woodhouse <dwmw2@infradead.org> | 2007-10-13 14:43:54 +0100 |
commit | b160292cc216a50fd0cd386b0bda2cd48352c73b (patch) | |
tree | ef07cf98f91353ee4c9ec1e1ca7a2a5d9d4b538a /arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c | |
parent | b37bde147890c8fea8369a5a4e230dabdea4ebfb (diff) | |
parent | bbf25010f1a6b761914430f5fca081ec8c7accd1 (diff) | |
download | op-kernel-dev-b160292cc216a50fd0cd386b0bda2cd48352c73b.zip op-kernel-dev-b160292cc216a50fd0cd386b0bda2cd48352c73b.tar.gz |
Merge Linux 2.6.23
Diffstat (limited to 'arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c')
-rw-r--r-- | arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c | 171 |
1 files changed, 9 insertions, 162 deletions
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c index e265fcd..9607ad5 100644 --- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c +++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c @@ -133,6 +133,7 @@ JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthB #include <linux/bootmem.h> #include <linux/blkdev.h> #ifdef CONFIG_TOSHIBA_FPCIB0 +#include <asm/i8259.h> #include <asm/tx4927/smsc_fdc37m81x.h> #endif #include <asm/tx4927/toshiba_rbtx4927.h> @@ -151,11 +152,6 @@ JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthB #define TOSHIBA_RBTX4927_IRQ_IOC_ENABLE ( 1 << 13 ) #define TOSHIBA_RBTX4927_IRQ_IOC_DISABLE ( 1 << 14 ) -#define TOSHIBA_RBTX4927_IRQ_ISA_INIT ( 1 << 20 ) -#define TOSHIBA_RBTX4927_IRQ_ISA_ENABLE ( 1 << 23 ) -#define TOSHIBA_RBTX4927_IRQ_ISA_DISABLE ( 1 << 24 ) -#define TOSHIBA_RBTX4927_IRQ_ISA_MASK ( 1 << 25 ) - #define TOSHIBA_RBTX4927_SETUP_ALL 0xffffffff #endif @@ -167,10 +163,6 @@ static const u32 toshiba_rbtx4927_irq_debug_flag = // | TOSHIBA_RBTX4927_IRQ_IOC_INIT // | TOSHIBA_RBTX4927_IRQ_IOC_ENABLE // | TOSHIBA_RBTX4927_IRQ_IOC_DISABLE -// | TOSHIBA_RBTX4927_IRQ_ISA_INIT -// | TOSHIBA_RBTX4927_IRQ_ISA_ENABLE -// | TOSHIBA_RBTX4927_IRQ_ISA_DISABLE -// | TOSHIBA_RBTX4927_IRQ_ISA_MASK ); #endif @@ -196,33 +188,14 @@ static const u32 toshiba_rbtx4927_irq_debug_flag = #define TOSHIBA_RBTX4927_IRQ_IOC_BEG ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG) /* 56 */ #define TOSHIBA_RBTX4927_IRQ_IOC_END ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_END) /* 63 */ - -#define TOSHIBA_RBTX4927_IRQ_ISA_BEG MI8259_IRQ_ISA_BEG -#define TOSHIBA_RBTX4927_IRQ_ISA_END MI8259_IRQ_ISA_END -#define TOSHIBA_RBTX4927_IRQ_ISA_MID ((TOSHIBA_RBTX4927_IRQ_ISA_BEG+TOSHIBA_RBTX4927_IRQ_ISA_END+1)/2) - - #define TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC TX4927_IRQ_NEST_EXT_ON_PIC #define TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC (TOSHIBA_RBTX4927_IRQ_IOC_BEG+2) -#define TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_ISA (TOSHIBA_RBTX4927_IRQ_ISA_BEG+2) extern int tx4927_using_backplane; -#ifdef CONFIG_TOSHIBA_FPCIB0 -extern void enable_8259A_irq(unsigned int irq); -extern void disable_8259A_irq(unsigned int irq); -extern void mask_and_ack_8259A(unsigned int irq); -#endif - static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq); static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq); -#ifdef CONFIG_TOSHIBA_FPCIB0 -static void toshiba_rbtx4927_irq_isa_enable(unsigned int irq); -static void toshiba_rbtx4927_irq_isa_disable(unsigned int irq); -static void toshiba_rbtx4927_irq_isa_mask_and_ack(unsigned int irq); -#endif - #define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC" static struct irq_chip toshiba_rbtx4927_irq_ioc_type = { .name = TOSHIBA_RBTX4927_IOC_NAME, @@ -235,18 +208,6 @@ static struct irq_chip toshiba_rbtx4927_irq_ioc_type = { #define TOSHIBA_RBTX4927_IOC_INTR_STAT 0xbc002006 -#ifdef CONFIG_TOSHIBA_FPCIB0 -#define TOSHIBA_RBTX4927_ISA_NAME "RBTX4927-ISA" -static struct irq_chip toshiba_rbtx4927_irq_isa_type = { - .name = TOSHIBA_RBTX4927_ISA_NAME, - .ack = toshiba_rbtx4927_irq_isa_mask_and_ack, - .mask = toshiba_rbtx4927_irq_isa_disable, - .mask_ack = toshiba_rbtx4927_irq_isa_mask_and_ack, - .unmask = toshiba_rbtx4927_irq_isa_enable, -}; -#endif - - u32 bit2num(u32 num) { u32 i; @@ -271,31 +232,10 @@ int toshiba_rbtx4927_irq_nested(int sw_irq) } } #ifdef CONFIG_TOSHIBA_FPCIB0 - { - if (tx4927_using_backplane) { - u32 level4; - u32 level5; - outb(0x0A, 0x20); - level4 = inb(0x20) & 0xff; - if (level4) { - sw_irq = - TOSHIBA_RBTX4927_IRQ_ISA_BEG + - bit2num(level4); - if (sw_irq != - TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_ISA) { - goto RETURN; - } - } - - outb(0x0A, 0xA0); - level5 = inb(0xA0) & 0xff; - if (level5) { - sw_irq = - TOSHIBA_RBTX4927_IRQ_ISA_MID + - bit2num(level5); - goto RETURN; - } - } + if (tx4927_using_backplane) { + int irq = i8259_irq(); + if (irq >= 0) + sw_irq = irq; } #endif @@ -307,12 +247,6 @@ int toshiba_rbtx4927_irq_nested(int sw_irq) #define TOSHIBA_RBTX4927_PIC_ACTION(s) { no_action, IRQF_SHARED, CPU_MASK_NONE, s, NULL, NULL } static struct irqaction toshiba_rbtx4927_irq_ioc_action = TOSHIBA_RBTX4927_PIC_ACTION(TOSHIBA_RBTX4927_IOC_NAME); -#ifdef CONFIG_TOSHIBA_FPCIB0 -static struct irqaction toshiba_rbtx4927_irq_isa_master = -TOSHIBA_RBTX4927_PIC_ACTION(TOSHIBA_RBTX4927_ISA_NAME "/M"); -static struct irqaction toshiba_rbtx4927_irq_isa_slave = -TOSHIBA_RBTX4927_PIC_ACTION(TOSHIBA_RBTX4927_ISA_NAME "/S"); -#endif /**********************************************************************************/ @@ -378,92 +312,6 @@ static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq) } -/**********************************************************************************/ -/* Functions for isa */ -/**********************************************************************************/ - - -#ifdef CONFIG_TOSHIBA_FPCIB0 -static void __init toshiba_rbtx4927_irq_isa_init(void) -{ - int i; - - TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_INIT, - "beg=%d end=%d\n", - TOSHIBA_RBTX4927_IRQ_ISA_BEG, - TOSHIBA_RBTX4927_IRQ_ISA_END); - - for (i = TOSHIBA_RBTX4927_IRQ_ISA_BEG; - i <= TOSHIBA_RBTX4927_IRQ_ISA_END; i++) - set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_isa_type, - handle_level_irq); - - setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC, - &toshiba_rbtx4927_irq_isa_master); - setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_ISA, - &toshiba_rbtx4927_irq_isa_slave); - - /* make sure we are looking at IRR (not ISR) */ - outb(0x0A, 0x20); - outb(0x0A, 0xA0); -} -#endif - - -#ifdef CONFIG_TOSHIBA_FPCIB0 -static void toshiba_rbtx4927_irq_isa_enable(unsigned int irq) -{ - TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_ENABLE, - "irq=%d\n", irq); - - if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG - || irq > TOSHIBA_RBTX4927_IRQ_ISA_END) { - TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR, - "bad irq=%d\n", irq); - panic("\n"); - } - - enable_8259A_irq(irq); -} -#endif - - -#ifdef CONFIG_TOSHIBA_FPCIB0 -static void toshiba_rbtx4927_irq_isa_disable(unsigned int irq) -{ - TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_DISABLE, - "irq=%d\n", irq); - - if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG - || irq > TOSHIBA_RBTX4927_IRQ_ISA_END) { - TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR, - "bad irq=%d\n", irq); - panic("\n"); - } - - disable_8259A_irq(irq); -} -#endif - - -#ifdef CONFIG_TOSHIBA_FPCIB0 -static void toshiba_rbtx4927_irq_isa_mask_and_ack(unsigned int irq) -{ - TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_MASK, - "irq=%d\n", irq); - - if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG - || irq > TOSHIBA_RBTX4927_IRQ_ISA_END) { - TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR, - "bad irq=%d\n", irq); - panic("\n"); - } - - mask_and_ack_8259A(irq); -} -#endif - - void __init arch_init_irq(void) { extern void tx4927_irq_init(void); @@ -471,12 +319,11 @@ void __init arch_init_irq(void) tx4927_irq_init(); toshiba_rbtx4927_irq_ioc_init(); #ifdef CONFIG_TOSHIBA_FPCIB0 - { - if (tx4927_using_backplane) { - toshiba_rbtx4927_irq_isa_init(); - } - } + if (tx4927_using_backplane) + init_i8259_irqs(); #endif + /* Onboard 10M Ether: High Active */ + set_irq_type(RBTX4927_RTL_8019_IRQ, IRQF_TRIGGER_HIGH); wbflush(); } |