| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * arch/ppc/syslib/ppc_sys.c |
| 3 | * |
| 4 | * PPC System library functions |
| 5 | * |
| 6 | * Maintainer: Kumar Gala <kumar.gala@freescale.com> |
| 7 | * |
| 8 | * Copyright 2005 Freescale Semiconductor Inc. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify it |
| 11 | * under the terms of the GNU General Public License as published by the |
| 12 | * Free Software Foundation; either version 2 of the License, or (at your |
| 13 | * option) any later version. |
| 14 | */ |
| 15 | |
| 16 | #include <asm/ppc_sys.h> |
| 17 | |
| 18 | int (*ppc_sys_device_fixup) (struct platform_device * pdev); |
| 19 | |
| 20 | static int ppc_sys_inited; |
| 21 | |
| 22 | void __init identify_ppc_sys_by_id(u32 id) |
| 23 | { |
| 24 | unsigned int i = 0; |
| 25 | while (1) { |
| 26 | if ((ppc_sys_specs[i].mask & id) == ppc_sys_specs[i].value) |
| 27 | break; |
| 28 | i++; |
| 29 | } |
| 30 | |
| 31 | cur_ppc_sys_spec = &ppc_sys_specs[i]; |
| 32 | |
| 33 | return; |
| 34 | } |
| 35 | |
| 36 | void __init identify_ppc_sys_by_name(char *name) |
| 37 | { |
| 38 | /* TODO */ |
| 39 | return; |
| 40 | } |
| 41 | |
| 42 | /* Update all memory resources by paddr, call before platform_device_register */ |
| 43 | void __init |
| 44 | ppc_sys_fixup_mem_resource(struct platform_device *pdev, phys_addr_t paddr) |
| 45 | { |
| 46 | int i; |
| 47 | for (i = 0; i < pdev->num_resources; i++) { |
| 48 | struct resource *r = &pdev->resource[i]; |
| 49 | if ((r->flags & IORESOURCE_MEM) == IORESOURCE_MEM) { |
| 50 | r->start += paddr; |
| 51 | r->end += paddr; |
| 52 | } |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | /* Get platform_data pointer out of platform device, call before platform_device_register */ |
| 57 | void *__init ppc_sys_get_pdata(enum ppc_sys_devices dev) |
| 58 | { |
| 59 | return ppc_sys_platform_devices[dev].dev.platform_data; |
| 60 | } |
| 61 | |
| 62 | void ppc_sys_device_remove(enum ppc_sys_devices dev) |
| 63 | { |
| 64 | unsigned int i; |
| 65 | |
| 66 | if (ppc_sys_inited) { |
| 67 | platform_device_unregister(&ppc_sys_platform_devices[dev]); |
| 68 | } else { |
| 69 | if (cur_ppc_sys_spec == NULL) |
| 70 | return; |
| 71 | for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) |
| 72 | if (cur_ppc_sys_spec->device_list[i] == dev) |
| 73 | cur_ppc_sys_spec->device_list[i] = -1; |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | static int __init ppc_sys_init(void) |
| 78 | { |
| 79 | unsigned int i, dev_id, ret = 0; |
| 80 | |
| 81 | BUG_ON(cur_ppc_sys_spec == NULL); |
| 82 | |
| 83 | for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) { |
| 84 | dev_id = cur_ppc_sys_spec->device_list[i]; |
| 85 | if (dev_id != -1) { |
| 86 | if (ppc_sys_device_fixup != NULL) |
| 87 | ppc_sys_device_fixup(&ppc_sys_platform_devices |
| 88 | [dev_id]); |
| 89 | if (platform_device_register |
| 90 | (&ppc_sys_platform_devices[dev_id])) { |
| 91 | ret = 1; |
| 92 | printk(KERN_ERR |
| 93 | "unable to register device %d\n", |
| 94 | dev_id); |
| 95 | } |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | ppc_sys_inited = 1; |
| 100 | return ret; |
| 101 | } |
| 102 | |
| 103 | subsys_initcall(ppc_sys_init); |