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Diffstat (limited to 'arch/powerpc/platforms/44x/currituck.c')
| -rw-r--r-- | arch/powerpc/platforms/44x/currituck.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/arch/powerpc/platforms/44x/currituck.c b/arch/powerpc/platforms/44x/currituck.c deleted file mode 100644 index ecd3890c40d..00000000000 --- a/arch/powerpc/platforms/44x/currituck.c +++ /dev/null @@ -1,198 +0,0 @@ -/* - * Currituck board specific routines - * - * Copyright © 2011 Tony Breeds IBM Corporation - * - * Based on earlier code: - * Matt Porter <mporter@kernel.crashing.org> - * Copyright 2002-2005 MontaVista Software Inc. - * - * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> - * Copyright (c) 2003-2005 Zultys Technologies - * - * Rewritten and ported to the merged powerpc tree: - * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation. - * Copyright © 2011 David Kliekamp IBM Corporation - * - * 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/init.h> -#include <linux/of.h> -#include <linux/of_platform.h> -#include <linux/rtc.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/udbg.h> -#include <asm/time.h> -#include <asm/uic.h> -#include <asm/ppc4xx.h> -#include <asm/mpic.h> -#include <asm/mmu.h> - -#include <linux/pci.h> - -static __initdata struct of_device_id ppc47x_of_bus[] = { - { .compatible = "ibm,plb4", }, - { .compatible = "ibm,plb6", }, - { .compatible = "ibm,opb", }, - { .compatible = "ibm,ebc", }, - {}, -}; - -/* The EEPROM is missing and the default values are bogus. This forces USB in - * to EHCI mode */ -static void quirk_ppc_currituck_usb_fixup(struct pci_dev *dev) -{ - if (of_machine_is_compatible("ibm,currituck")) { - pci_write_config_dword(dev, 0xe0, 0x0114231f); - pci_write_config_dword(dev, 0xe4, 0x00006c40); - } -} -DECLARE_PCI_FIXUP_HEADER(0x1033, 0x0035, quirk_ppc_currituck_usb_fixup); - -static int __init ppc47x_device_probe(void) -{ - of_platform_bus_probe(NULL, ppc47x_of_bus, NULL); - - return 0; -} -machine_device_initcall(ppc47x, ppc47x_device_probe); - -/* We can have either UICs or MPICs */ -static void __init ppc47x_init_irq(void) -{ - struct device_node *np; - - /* Find top level interrupt controller */ - for_each_node_with_property(np, "interrupt-controller") { - if (of_get_property(np, "interrupts", NULL) == NULL) - break; - } - if (np == NULL) - panic("Can't find top level interrupt controller"); - - /* Check type and do appropriate initialization */ - if (of_device_is_compatible(np, "chrp,open-pic")) { - /* The MPIC driver will get everything it needs from the - * device-tree, just pass 0 to all arguments - */ - struct mpic *mpic = - mpic_alloc(np, 0, MPIC_NO_RESET, 0, 0, " MPIC "); - BUG_ON(mpic == NULL); - mpic_init(mpic); - ppc_md.get_irq = mpic_get_irq; - } else - panic("Unrecognized top level interrupt controller"); -} - -#ifdef CONFIG_SMP -static void __cpuinit smp_ppc47x_setup_cpu(int cpu) -{ - mpic_setup_this_cpu(); -} - -static int __cpuinit smp_ppc47x_kick_cpu(int cpu) -{ - struct device_node *cpunode = of_get_cpu_node(cpu, NULL); - const u64 *spin_table_addr_prop; - u32 *spin_table; - extern void start_secondary_47x(void); - - BUG_ON(cpunode == NULL); - - /* Assume spin table. We could test for the enable-method in - * the device-tree but currently there's little point as it's - * our only supported method - */ - spin_table_addr_prop = - of_get_property(cpunode, "cpu-release-addr", NULL); - - if (spin_table_addr_prop == NULL) { - pr_err("CPU%d: Can't start, missing cpu-release-addr !\n", - cpu); - return 1; - } - - /* Assume it's mapped as part of the linear mapping. This is a bit - * fishy but will work fine for now - * - * XXX: Is there any reason to assume differently? - */ - spin_table = (u32 *)__va(*spin_table_addr_prop); - pr_debug("CPU%d: Spin table mapped at %p\n", cpu, spin_table); - - spin_table[3] = cpu; - smp_wmb(); - spin_table[1] = __pa(start_secondary_47x); - mb(); - - return 0; -} - -static struct smp_ops_t ppc47x_smp_ops = { - .probe = smp_mpic_probe, - .message_pass = smp_mpic_message_pass, - .setup_cpu = smp_ppc47x_setup_cpu, - .kick_cpu = smp_ppc47x_kick_cpu, - .give_timebase = smp_generic_give_timebase, - .take_timebase = smp_generic_take_timebase, -}; - -static void __init ppc47x_smp_init(void) -{ - if (mmu_has_feature(MMU_FTR_TYPE_47x)) - smp_ops = &ppc47x_smp_ops; -} - -#else /* CONFIG_SMP */ -static void __init ppc47x_smp_init(void) { } -#endif /* CONFIG_SMP */ - -static void __init ppc47x_setup_arch(void) -{ - - /* No need to check the DMA config as we /know/ our windows are all of - * RAM. Lets hope that doesn't change */ - swiotlb_detect_4g(); - - ppc47x_smp_init(); -} - -/* - * Called very early, MMU is off, device-tree isn't unflattened - */ -static int __init ppc47x_probe(void) -{ - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "ibm,currituck")) - return 0; - - return 1; -} - -/* Use USB controller should have been hardware swizzled but it wasn't :( */ -static void ppc47x_pci_irq_fixup(struct pci_dev *dev) -{ - if (dev->vendor == 0x1033 && (dev->device == 0x0035 || - dev->device == 0x00e0)) { - dev->irq = irq_create_mapping(NULL, 47); - pr_info("%s: Mapping irq 47 %d\n", __func__, dev->irq); - } -} - -define_machine(ppc47x) { - .name = "PowerPC 47x", - .probe = ppc47x_probe, - .progress = udbg_progress, - .init_IRQ = ppc47x_init_irq, - .setup_arch = ppc47x_setup_arch, - .pci_irq_fixup = ppc47x_pci_irq_fixup, - .restart = ppc4xx_reset_system, - .calibrate_decr = generic_calibrate_decr, -}; |