| Mark Salter | 041cadc | 2011-10-04 12:12:20 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Architecture specific OF callbacks. |
| 3 | * |
| 4 | * Copyright (C) 2011 Texas Instruments Incorporated |
| 5 | * Author: Mark Salter <msalter@redhat.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | */ |
| 12 | #include <linux/init.h> |
| 13 | #include <linux/of.h> |
| 14 | #include <linux/of_fdt.h> |
| 15 | #include <linux/initrd.h> |
| 16 | #include <linux/memblock.h> |
| 17 | |
| 18 | void __init early_init_devtree(void *params) |
| 19 | { |
| 20 | /* Setup flat device-tree pointer */ |
| 21 | initial_boot_params = params; |
| 22 | |
| 23 | /* Retrieve various informations from the /chosen node of the |
| 24 | * device-tree, including the platform type, initrd location and |
| 25 | * size and more ... |
| 26 | */ |
| 27 | of_scan_flat_dt(early_init_dt_scan_chosen, c6x_command_line); |
| 28 | |
| 29 | /* Scan memory nodes and rebuild MEMBLOCKs */ |
| 30 | of_scan_flat_dt(early_init_dt_scan_root, NULL); |
| 31 | of_scan_flat_dt(early_init_dt_scan_memory, NULL); |
| 32 | } |
| 33 | |
| 34 | |
| 35 | #ifdef CONFIG_BLK_DEV_INITRD |
| 36 | void __init early_init_dt_setup_initrd_arch(unsigned long start, |
| 37 | unsigned long end) |
| 38 | { |
| 39 | initrd_start = (unsigned long)__va(start); |
| 40 | initrd_end = (unsigned long)__va(end); |
| 41 | initrd_below_start_ok = 1; |
| 42 | } |
| 43 | #endif |
| 44 | |
| 45 | void __init early_init_dt_add_memory_arch(u64 base, u64 size) |
| 46 | { |
| 47 | c6x_add_memory(base, size); |
| 48 | } |
| 49 | |
| 50 | void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) |
| 51 | { |
| 52 | return __va(memblock_alloc(size, align)); |
| 53 | } |