diff options
Diffstat (limited to 'arch/sh/boards/se/770x/irq.c')
| -rw-r--r-- | arch/sh/boards/se/770x/irq.c | 108 |
1 files changed, 74 insertions, 34 deletions
diff --git a/arch/sh/boards/se/770x/irq.c b/arch/sh/boards/se/770x/irq.c index fcd7cd7fa05f..307ca5da6232 100644 --- a/arch/sh/boards/se/770x/irq.c +++ b/arch/sh/boards/se/770x/irq.c @@ -2,56 +2,96 @@ * linux/arch/sh/boards/se/770x/irq.c * * Copyright (C) 2000 Kazumoto Kojima + * Copyright (C) 2006 Nobuhiro Iwamatsu * * Hitachi SolutionEngine Support. * */ #include <linux/init.h> +#include <linux/interrupt.h> #include <linux/irq.h> #include <asm/irq.h> #include <asm/io.h> #include <asm/se.h> +/* + * If the problem of make_ipr_irq is solved, + * this code will become unnecessary. :-) + */ +static void se770x_disable_ipr_irq(unsigned int irq) +{ + struct ipr_data *p = get_irq_chip_data(irq); + + ctrl_outw(ctrl_inw(p->addr) & (0xffff ^ (0xf << p->shift)), p->addr); +} + +static void se770x_enable_ipr_irq(unsigned int irq) +{ + struct ipr_data *p = get_irq_chip_data(irq); + + ctrl_outw(ctrl_inw(p->addr) | (p->priority << p->shift), p->addr); +} + +static struct irq_chip se770x_irq_chip = { + .name = "MS770xSE-FPGA", + .mask = se770x_disable_ipr_irq, + .unmask = se770x_enable_ipr_irq, + .mask_ack = se770x_disable_ipr_irq, +}; + +void make_se770x_irq(struct ipr_data *table, unsigned int nr_irqs) +{ + int i; + + for (i = 0; i < nr_irqs; i++) { + unsigned int irq = table[i].irq; + disable_irq_nosync(irq); + set_irq_chip_and_handler_name(irq, &se770x_irq_chip, + handle_level_irq, "level"); + set_irq_chip_data(irq, &table[i]); + se770x_enable_ipr_irq(irq); + } +} + static struct ipr_data se770x_ipr_map[] = { #if defined(CONFIG_CPU_SUBTYPE_SH7705) /* This is default value */ - { 0xf-0x2, BCR_ILCRA, 2, 0x2 }, - { 0xf-0xa, BCR_ILCRA, 1, 0xa }, - { 0xf-0x5, BCR_ILCRB, 0, 0x5 }, - { 0xf-0x8, BCR_ILCRC, 1, 0x8 }, - { 0xf-0xc, BCR_ILCRC, 0, 0xc }, - { 0xf-0xe, BCR_ILCRD, 3, 0xe }, - { 0xf-0x3, BCR_ILCRD, 1, 0x3 }, /* LAN */ - { 0xf-0xd, BCR_ILCRE, 2, 0xd }, - { 0xf-0x9, BCR_ILCRE, 1, 0x9 }, - { 0xf-0x1, BCR_ILCRE, 0, 0x1 }, - { 0xf-0xf, BCR_ILCRF, 3, 0xf }, - { 0xf-0xb, BCR_ILCRF, 1, 0xb }, - { 0xf-0x7, BCR_ILCRG, 3, 0x7 }, - { 0xf-0x6, BCR_ILCRG, 2, 0x6 }, - { 0xf-0x4, BCR_ILCRG, 1, 0x4 }, + { 0xf-0x2, 0, 8, 0x2 , BCR_ILCRA}, + { 0xf-0xa, 0, 4, 0xa , BCR_ILCRA}, + { 0xf-0x5, 0, 0, 0x5 , BCR_ILCRB}, + { 0xf-0x8, 0, 4, 0x8 , BCR_ILCRC}, + { 0xf-0xc, 0, 0, 0xc , BCR_ILCRC}, + { 0xf-0xe, 0, 12, 0xe , BCR_ILCRD}, + { 0xf-0x3, 0, 4, 0x3 , BCR_ILCRD}, /* LAN */ + { 0xf-0xd, 0, 8, 0xd , BCR_ILCRE}, + { 0xf-0x9, 0, 4, 0x9 , BCR_ILCRE}, + { 0xf-0x1, 0, 0, 0x1 , BCR_ILCRE}, + { 0xf-0xf, 0, 12, 0xf , BCR_ILCRF}, + { 0xf-0xb, 0, 4, 0xb , BCR_ILCRF}, + { 0xf-0x7, 0, 12, 0x7 , BCR_ILCRG}, + { 0xf-0x6, 0, 8, 0x6 , BCR_ILCRG}, + { 0xf-0x4, 0, 4, 0x4 , BCR_ILCRG}, #else - { 14, BCR_ILCRA, 2, 0x0f-14 }, - { 12, BCR_ILCRA, 1, 0x0f-12 }, - { 8, BCR_ILCRB, 1, 0x0f- 8 }, - { 6, BCR_ILCRC, 3, 0x0f- 6 }, - { 5, BCR_ILCRC, 2, 0x0f- 5 }, - { 4, BCR_ILCRC, 1, 0x0f- 4 }, - { 3, BCR_ILCRC, 0, 0x0f- 3 }, - { 1, BCR_ILCRD, 3, 0x0f- 1 }, - - { 10, BCR_ILCRD, 1, 0x0f-10 }, /* LAN */ - - { 0, BCR_ILCRE, 3, 0x0f- 0 }, /* PCIRQ3 */ - { 11, BCR_ILCRE, 2, 0x0f-11 }, /* PCIRQ2 */ - { 9, BCR_ILCRE, 1, 0x0f- 9 }, /* PCIRQ1 */ - { 7, BCR_ILCRE, 0, 0x0f- 7 }, /* PCIRQ0 */ - + { 14, 0, 8, 0x0f-14 ,BCR_ILCRA}, + { 12, 0, 4, 0x0f-12 ,BCR_ILCRA}, + { 8, 0, 4, 0x0f- 8 ,BCR_ILCRB}, + { 6, 0, 12, 0x0f- 6 ,BCR_ILCRC}, + { 5, 0, 8, 0x0f- 5 ,BCR_ILCRC}, + { 4, 0, 4, 0x0f- 4 ,BCR_ILCRC}, + { 3, 0, 0, 0x0f- 3 ,BCR_ILCRC}, + { 1, 0, 12, 0x0f- 1 ,BCR_ILCRD}, + /* ST NIC */ + { 10, 0, 4, 0x0f-10 ,BCR_ILCRD}, /* LAN */ + /* MRSHPC IRQs setting */ + { 0, 0, 12, 0x0f- 0 ,BCR_ILCRE}, /* PCIRQ3 */ + { 11, 0, 8, 0x0f-11 ,BCR_ILCRE}, /* PCIRQ2 */ + { 9, 0, 4, 0x0f- 9 ,BCR_ILCRE}, /* PCIRQ1 */ + { 7, 0, 0, 0x0f- 7 ,BCR_ILCRE}, /* PCIRQ0 */ /* #2, #13 are allocated for SLOT IRQ #1 and #2 (for now) */ /* NOTE: #2 and #13 are not used on PC */ - { 13, BCR_ILCRG, 1, 0x0f-13 }, /* SLOTIRQ2 */ - { 2, BCR_ILCRG, 0, 0x0f- 2 }, /* SLOTIRQ1 */ + { 13, 0, 4, 0x0f-13 ,BCR_ILCRG}, /* SLOTIRQ2 */ + { 2, 0, 0, 0x0f- 2 ,BCR_ILCRG}, /* SLOTIRQ1 */ #endif }; @@ -81,5 +121,5 @@ void __init init_se_IRQ(void) ctrl_outw(0, BCR_ILCRF); ctrl_outw(0, BCR_ILCRG); #endif - make_ipr_irq(se770x_ipr_map, ARRAY_SIZE(se770x_ipr_map)); + make_se770x_irq(se770x_ipr_map, ARRAY_SIZE(se770x_ipr_map)); } |