diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/86xx/Makefile | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/86xx/mpc8610_hpcd.c | 26 | ||||
| -rw-r--r-- | arch/powerpc/platforms/86xx/mpc86xx.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 64 | ||||
| -rw-r--r-- | arch/powerpc/platforms/86xx/pic.c | 78 | ||||
| -rw-r--r-- | arch/powerpc/platforms/86xx/sbc8641d.c | 25 |
6 files changed, 86 insertions, 111 deletions
diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile index 1b9b4a9b2525..8fee37dec795 100644 --- a/arch/powerpc/platforms/86xx/Makefile +++ b/arch/powerpc/platforms/86xx/Makefile @@ -2,6 +2,7 @@ # Makefile for the PowerPC 86xx linux kernel. # +obj-y := pic.o obj-$(CONFIG_SMP) += mpc86xx_smp.o obj-$(CONFIG_MPC8641_HPCN) += mpc86xx_hpcn.o obj-$(CONFIG_SBC8641D) += sbc8641d.o diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c index eb16208b29d9..30725302884a 100644 --- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c +++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c @@ -39,6 +39,8 @@ #include <sysdev/fsl_pci.h> #include <sysdev/fsl_soc.h> +#include "mpc86xx.h" + static unsigned char *pixis_bdcfg0, *pixis_arch; static struct of_device_id __initdata mpc8610_ids[] = { @@ -56,28 +58,6 @@ static int __init mpc8610_declare_of_platform_devices(void) } machine_device_initcall(mpc86xx_hpcd, mpc8610_declare_of_platform_devices); -static void __init mpc86xx_hpcd_init_irq(void) -{ - struct mpic *mpic1; - struct device_node *np; - struct resource res; - - /* Determine PIC address. */ - np = of_find_node_by_type(NULL, "open-pic"); - if (np == NULL) - return; - of_address_to_resource(np, 0, &res); - - /* Alloc mpic structure and per isu has 16 INT entries. */ - mpic1 = mpic_alloc(np, res.start, - MPIC_PRIMARY | MPIC_WANTS_RESET | - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS, - 0, 256, " MPIC "); - BUG_ON(mpic1 == NULL); - - mpic_init(mpic1); -} - #ifdef CONFIG_PCI static void __devinit quirk_uli1575(struct pci_dev *dev) { @@ -405,7 +385,7 @@ define_machine(mpc86xx_hpcd) { .name = "MPC86xx HPCD", .probe = mpc86xx_hpcd_probe, .setup_arch = mpc86xx_hpcd_setup_arch, - .init_IRQ = mpc86xx_hpcd_init_irq, + .init_IRQ = mpc86xx_init_irq, .get_irq = mpic_get_irq, .restart = fsl_rstcr_restart, .time_init = mpc86xx_time_init, diff --git a/arch/powerpc/platforms/86xx/mpc86xx.h b/arch/powerpc/platforms/86xx/mpc86xx.h index 525ffa1904f9..08efb57559d1 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx.h +++ b/arch/powerpc/platforms/86xx/mpc86xx.h @@ -15,6 +15,7 @@ * mpc86xx_* files. Mostly for use by mpc86xx_setup(). */ -extern void __init mpc86xx_smp_init(void); +extern void mpc86xx_smp_init(void); +extern void mpc86xx_init_irq(void); #endif /* __MPC86XX_H__ */ diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c index f13704aabbea..7916599c9126 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -28,7 +28,6 @@ #include <asm/prom.h> #include <mm/mmu_decl.h> #include <asm/udbg.h> -#include <asm/i8259.h> #include <asm/mpic.h> @@ -46,67 +45,6 @@ #endif #ifdef CONFIG_PCI -static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc) -{ - unsigned int cascade_irq = i8259_irq(); - if (cascade_irq != NO_IRQ) - generic_handle_irq(cascade_irq); - desc->chip->eoi(irq); -} -#endif /* CONFIG_PCI */ - -static void __init -mpc86xx_hpcn_init_irq(void) -{ - struct mpic *mpic1; - struct device_node *np; - struct resource res; -#ifdef CONFIG_PCI - struct device_node *cascade_node = NULL; - int cascade_irq; -#endif - - /* Determine PIC address. */ - np = of_find_node_by_type(NULL, "open-pic"); - if (np == NULL) - return; - of_address_to_resource(np, 0, &res); - - /* Alloc mpic structure and per isu has 16 INT entries. */ - mpic1 = mpic_alloc(np, res.start, - MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, - 0, 256, " MPIC "); - BUG_ON(mpic1 == NULL); - - mpic_init(mpic1); - -#ifdef CONFIG_PCI - /* Initialize i8259 controller */ - for_each_node_by_type(np, "interrupt-controller") - if (of_device_is_compatible(np, "chrp,iic")) { - cascade_node = np; - break; - } - if (cascade_node == NULL) { - printk(KERN_DEBUG "mpc86xxhpcn: no ISA interrupt controller\n"); - return; - } - - cascade_irq = irq_of_parse_and_map(cascade_node, 0); - if (cascade_irq == NO_IRQ) { - printk(KERN_ERR "mpc86xxhpcn: failed to map cascade interrupt"); - return; - } - DBG("mpc86xxhpcn: cascade mapped to irq %d\n", cascade_irq); - - i8259_init(cascade_node, 0); - of_node_put(cascade_node); - - set_irq_chained_handler(cascade_irq, mpc86xx_8259_cascade); -#endif -} - -#ifdef CONFIG_PCI extern int uses_fsl_uli_m1575; extern int uli_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn); @@ -237,7 +175,7 @@ define_machine(mpc86xx_hpcn) { .name = "MPC86xx HPCN", .probe = mpc86xx_hpcn_probe, .setup_arch = mpc86xx_hpcn_setup_arch, - .init_IRQ = mpc86xx_hpcn_init_irq, + .init_IRQ = mpc86xx_init_irq, .show_cpuinfo = mpc86xx_hpcn_show_cpuinfo, .get_irq = mpic_get_irq, .restart = fsl_rstcr_restart, diff --git a/arch/powerpc/platforms/86xx/pic.c b/arch/powerpc/platforms/86xx/pic.c new file mode 100644 index 000000000000..8881c5de500d --- /dev/null +++ b/arch/powerpc/platforms/86xx/pic.c @@ -0,0 +1,78 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/stddef.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/of_platform.h> + +#include <asm/system.h> +#include <asm/mpic.h> +#include <asm/i8259.h> + +#ifdef CONFIG_PPC_I8259 +static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc) +{ + unsigned int cascade_irq = i8259_irq(); + if (cascade_irq != NO_IRQ) + generic_handle_irq(cascade_irq); + desc->chip->eoi(irq); +} +#endif /* CONFIG_PPC_I8259 */ + +void __init mpc86xx_init_irq(void) +{ + struct mpic *mpic; + struct device_node *np; + struct resource res; +#ifdef CONFIG_PPC_I8259 + struct device_node *cascade_node = NULL; + int cascade_irq; +#endif + + /* Determine PIC address. */ + np = of_find_node_by_type(NULL, "open-pic"); + if (np == NULL) + return; + of_address_to_resource(np, 0, &res); + + mpic = mpic_alloc(np, res.start, + MPIC_PRIMARY | MPIC_WANTS_RESET | + MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS, + 0, 256, " MPIC "); + of_node_put(np); + BUG_ON(mpic == NULL); + + mpic_init(mpic); + +#ifdef CONFIG_PPC_I8259 + /* Initialize i8259 controller */ + for_each_node_by_type(np, "interrupt-controller") + if (of_device_is_compatible(np, "chrp,iic")) { + cascade_node = np; + break; + } + + if (cascade_node == NULL) { + printk(KERN_DEBUG "Could not find i8259 PIC\n"); + return; + } + + cascade_irq = irq_of_parse_and_map(cascade_node, 0); + if (cascade_irq == NO_IRQ) { + printk(KERN_ERR "Failed to map cascade interrupt\n"); + return; + } + + i8259_init(cascade_node, 0); + of_node_put(cascade_node); + + set_irq_chained_handler(cascade_irq, mpc86xx_8259_cascade); +#endif +} diff --git a/arch/powerpc/platforms/86xx/sbc8641d.c b/arch/powerpc/platforms/86xx/sbc8641d.c index 510a06ef0b55..00e6fad3b3ca 100644 --- a/arch/powerpc/platforms/86xx/sbc8641d.c +++ b/arch/powerpc/platforms/86xx/sbc8641d.c @@ -38,29 +38,6 @@ #include "mpc86xx.h" static void __init -sbc8641_init_irq(void) -{ - struct mpic *mpic1; - struct device_node *np; - struct resource res; - - /* Determine PIC address. */ - np = of_find_node_by_type(NULL, "open-pic"); - if (np == NULL) - return; - of_address_to_resource(np, 0, &res); - - /* Alloc mpic structure and per isu has 16 INT entries. */ - mpic1 = mpic_alloc(np, res.start, - MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, - 0, 256, " MPIC "); - of_node_put(np); - BUG_ON(mpic1 == NULL); - - mpic_init(mpic1); -} - -static void __init sbc8641_setup_arch(void) { #ifdef CONFIG_PCI @@ -151,7 +128,7 @@ define_machine(sbc8641) { .name = "SBC8641D", .probe = sbc8641_probe, .setup_arch = sbc8641_setup_arch, - .init_IRQ = sbc8641_init_irq, + .init_IRQ = mpc86xx_init_irq, .show_cpuinfo = sbc8641_show_cpuinfo, .get_irq = mpic_get_irq, .restart = fsl_rstcr_restart, |
