| Mingkai Hu | 3fce1c0 | 2011-06-28 15:52:34 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * P2040 RDB Setup |
| 3 | * |
| 4 | * Copyright 2011 Freescale Semiconductor Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; either version 2 of the License, or (at your |
| 9 | * option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/kernel.h> |
| 13 | #include <linux/pci.h> |
| 14 | #include <linux/kdev_t.h> |
| 15 | #include <linux/delay.h> |
| 16 | #include <linux/interrupt.h> |
| 17 | #include <linux/phy.h> |
| 18 | |
| 19 | #include <asm/system.h> |
| 20 | #include <asm/time.h> |
| 21 | #include <asm/machdep.h> |
| 22 | #include <asm/pci-bridge.h> |
| 23 | #include <mm/mmu_decl.h> |
| 24 | #include <asm/prom.h> |
| 25 | #include <asm/udbg.h> |
| 26 | #include <asm/mpic.h> |
| 27 | |
| 28 | #include <linux/of_platform.h> |
| 29 | #include <sysdev/fsl_soc.h> |
| 30 | #include <sysdev/fsl_pci.h> |
| 31 | #include <asm/ehv_pic.h> |
| 32 | |
| 33 | #include "corenet_ds.h" |
| 34 | |
| 35 | /* |
| 36 | * Called very early, device-tree isn't unflattened |
| 37 | */ |
| 38 | static int __init p2040_rdb_probe(void) |
| 39 | { |
| 40 | unsigned long root = of_get_flat_dt_root(); |
| 41 | #ifdef CONFIG_SMP |
| 42 | extern struct smp_ops_t smp_85xx_ops; |
| 43 | #endif |
| 44 | |
| 45 | if (of_flat_dt_is_compatible(root, "fsl,P2040RDB")) |
| 46 | return 1; |
| 47 | |
| 48 | /* Check if we're running under the Freescale hypervisor */ |
| 49 | if (of_flat_dt_is_compatible(root, "fsl,P2040RDB-hv")) { |
| 50 | ppc_md.init_IRQ = ehv_pic_init; |
| 51 | ppc_md.get_irq = ehv_pic_get_irq; |
| 52 | ppc_md.restart = fsl_hv_restart; |
| 53 | ppc_md.power_off = fsl_hv_halt; |
| 54 | ppc_md.halt = fsl_hv_halt; |
| 55 | #ifdef CONFIG_SMP |
| 56 | /* |
| 57 | * Disable the timebase sync operations because we can't write |
| 58 | * to the timebase registers under the hypervisor. |
| 59 | */ |
| 60 | smp_85xx_ops.give_timebase = NULL; |
| 61 | smp_85xx_ops.take_timebase = NULL; |
| 62 | #endif |
| 63 | return 1; |
| 64 | } |
| 65 | |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | define_machine(p2040_rdb) { |
| 70 | .name = "P2040 RDB", |
| 71 | .probe = p2040_rdb_probe, |
| 72 | .setup_arch = corenet_ds_setup_arch, |
| 73 | .init_IRQ = corenet_ds_pic_init, |
| 74 | #ifdef CONFIG_PCI |
| 75 | .pcibios_fixup_bus = fsl_pcibios_fixup_bus, |
| 76 | #endif |
| 77 | .get_irq = mpic_get_coreint_irq, |
| 78 | .restart = fsl_rstcr_restart, |
| 79 | .calibrate_decr = generic_calibrate_decr, |
| 80 | .progress = udbg_progress, |
| 81 | .power_save = e500_idle, |
| 82 | }; |
| 83 | |
| 84 | machine_device_initcall(p2040_rdb, corenet_ds_publish_devices); |
| 85 | |
| 86 | #ifdef CONFIG_SWIOTLB |
| 87 | machine_arch_initcall(p2040_rdb, swiotlb_setup_bus_notifier); |
| 88 | #endif |