diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx/mpc85xx_ds.c')
| -rw-r--r-- | arch/powerpc/platforms/85xx/mpc85xx_ds.c | 161 |
1 files changed, 15 insertions, 146 deletions
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c index 2157a8017aa4..2856148321b3 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c @@ -15,17 +15,18 @@ #include <linux/delay.h> #include <linux/seq_file.h> #include <linux/interrupt.h> -#include <linux/of_platform.h> +#include <linux/of.h> +#include <linux/of_irq.h> #include <asm/time.h> #include <asm/machdep.h> #include <asm/pci-bridge.h> #include <mm/mmu_decl.h> -#include <asm/prom.h> #include <asm/udbg.h> #include <asm/mpic.h> #include <asm/i8259.h> #include <asm/swiotlb.h> +#include <asm/ppc-pci.h> #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> @@ -33,113 +34,22 @@ #include "mpc85xx.h" -#undef DEBUG - -#ifdef DEBUG -#define DBG(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) -#else -#define DBG(fmt, args...) -#endif - -#ifdef CONFIG_PPC_I8259 -static void mpc85xx_8259_cascade(struct irq_desc *desc) -{ - struct irq_chip *chip = irq_desc_get_chip(desc); - unsigned int cascade_irq = i8259_irq(); - - if (cascade_irq) { - generic_handle_irq(cascade_irq); - } - chip->irq_eoi(&desc->irq_data); -} -#endif /* CONFIG_PPC_I8259 */ - -void __init mpc85xx_ds_pic_init(void) +static void __init mpc85xx_ds_pic_init(void) { struct mpic *mpic; -#ifdef CONFIG_PPC_I8259 - struct device_node *np; - struct device_node *cascade_node = NULL; - int cascade_irq; -#endif - if (of_machine_is_compatible("fsl,MPC8572DS-CAMP")) { - mpic = mpic_alloc(NULL, 0, - MPIC_NO_RESET | - MPIC_BIG_ENDIAN | - MPIC_SINGLE_DEST_CPU, - 0, 256, " OpenPIC "); - } else { - mpic = mpic_alloc(NULL, 0, - MPIC_BIG_ENDIAN | - MPIC_SINGLE_DEST_CPU, - 0, 256, " OpenPIC "); - } - - BUG_ON(mpic == NULL); - mpic_init(mpic); + int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU; -#ifdef CONFIG_PPC_I8259 - /* Initialize the i8259 controller */ - for_each_node_by_type(np, "interrupt-controller") - if (of_device_is_compatible(np, "chrp,iic")) { - cascade_node = np; - break; - } + if (of_machine_is_compatible("fsl,MPC8572DS-CAMP")) + flags |= MPIC_NO_RESET; - if (cascade_node == NULL) { - printk(KERN_DEBUG "Could not find i8259 PIC\n"); - return; - } + mpic = mpic_alloc(NULL, 0, flags, 0, 256, " OpenPIC "); - cascade_irq = irq_of_parse_and_map(cascade_node, 0); - if (!cascade_irq) { - printk(KERN_ERR "Failed to map cascade interrupt\n"); + if (WARN_ON(!mpic)) return; - } - - DBG("mpc85xxds: cascade mapped to irq %d\n", cascade_irq); - - i8259_init(cascade_node, 0); - of_node_put(cascade_node); - - irq_set_chained_handler(cascade_irq, mpc85xx_8259_cascade); -#endif /* CONFIG_PPC_I8259 */ -} - -#ifdef CONFIG_PCI -extern int uli_exclude_device(struct pci_controller *hose, - u_char bus, u_char devfn); - -static struct device_node *pci_with_uli; -static int mpc85xx_exclude_device(struct pci_controller *hose, - u_char bus, u_char devfn) -{ - if (hose->dn == pci_with_uli) - return uli_exclude_device(hose, bus, devfn); - - return PCIBIOS_SUCCESSFUL; -} -#endif /* CONFIG_PCI */ - -static void __init mpc85xx_ds_uli_init(void) -{ -#ifdef CONFIG_PCI - struct device_node *node; - - /* See if we have a ULI under the primary */ - - node = of_find_node_by_name(NULL, "uli1575"); - while ((pci_with_uli = of_get_parent(node))) { - of_node_put(node); - node = pci_with_uli; + mpic_init(mpic); - if (pci_with_uli == fsl_pci_primary) { - ppc_md.pci_exclude_device = mpc85xx_exclude_device; - break; - } - } -#endif + mpc85xx_8259_init(); } /* @@ -152,43 +62,18 @@ static void __init mpc85xx_ds_setup_arch(void) swiotlb_detect_4g(); fsl_pci_assign_primary(); - mpc85xx_ds_uli_init(); + uli_init(); mpc85xx_smp_init(); - printk("MPC85xx DS board from Freescale Semiconductor\n"); -} - -/* - * Called very early, device-tree isn't unflattened - */ -static int __init mpc8544_ds_probe(void) -{ - return !!of_machine_is_compatible("MPC8544DS"); + pr_info("MPC85xx DS board from Freescale Semiconductor\n"); } machine_arch_initcall(mpc8544_ds, mpc85xx_common_publish_devices); machine_arch_initcall(mpc8572_ds, mpc85xx_common_publish_devices); -machine_arch_initcall(p2020_ds, mpc85xx_common_publish_devices); - -/* - * Called very early, device-tree isn't unflattened - */ -static int __init mpc8572_ds_probe(void) -{ - return !!of_machine_is_compatible("fsl,MPC8572DS"); -} - -/* - * Called very early, device-tree isn't unflattened - */ -static int __init p2020_ds_probe(void) -{ - return !!of_machine_is_compatible("fsl,P2020DS"); -} define_machine(mpc8544_ds) { .name = "MPC8544 DS", - .probe = mpc8544_ds_probe, + .compatible = "MPC8544DS", .setup_arch = mpc85xx_ds_setup_arch, .init_IRQ = mpc85xx_ds_pic_init, #ifdef CONFIG_PCI @@ -196,27 +81,12 @@ define_machine(mpc8544_ds) { .pcibios_fixup_phb = fsl_pcibios_fixup_phb, #endif .get_irq = mpic_get_irq, - .calibrate_decr = generic_calibrate_decr, .progress = udbg_progress, }; define_machine(mpc8572_ds) { .name = "MPC8572 DS", - .probe = mpc8572_ds_probe, - .setup_arch = mpc85xx_ds_setup_arch, - .init_IRQ = mpc85xx_ds_pic_init, -#ifdef CONFIG_PCI - .pcibios_fixup_bus = fsl_pcibios_fixup_bus, - .pcibios_fixup_phb = fsl_pcibios_fixup_phb, -#endif - .get_irq = mpic_get_irq, - .calibrate_decr = generic_calibrate_decr, - .progress = udbg_progress, -}; - -define_machine(p2020_ds) { - .name = "P2020 DS", - .probe = p2020_ds_probe, + .compatible = "fsl,MPC8572DS", .setup_arch = mpc85xx_ds_setup_arch, .init_IRQ = mpc85xx_ds_pic_init, #ifdef CONFIG_PCI @@ -224,6 +94,5 @@ define_machine(p2020_ds) { .pcibios_fixup_phb = fsl_pcibios_fixup_phb, #endif .get_irq = mpic_get_irq, - .calibrate_decr = generic_calibrate_decr, .progress = udbg_progress, }; |