summaryrefslogtreecommitdiff
path: root/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c')
-rw-r--r--arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c171
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 5cc30c10e746..9607ad5e734a 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;
@@ -262,8 +223,6 @@ u32 bit2num(u32 num)
int toshiba_rbtx4927_irq_nested(int sw_irq)
{
u32 level3;
- u32 level4;
- u32 level5;
level3 = reg_rd08(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f;
if (level3) {
@@ -273,29 +232,10 @@ int toshiba_rbtx4927_irq_nested(int sw_irq)
}
}
#ifdef CONFIG_TOSHIBA_FPCIB0
- {
- if (tx4927_using_backplane) {
- 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();
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-23 14:00:36 +0000