projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d4a67d9d GJ |
1 | /* |
| 2 | * Atheros AR71XX/AR724X/AR913X specific prom routines | |
| 3 | * | |
| 4 | * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> | |
| 5 | * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it | |
| 8 | * under the terms of the GNU General Public License version 2 as published | |
| 9 | * by the Free Software Foundation. | |
| 10 | */ | |
| 11 | ||
| 12 | #include <linux/kernel.h> | |
| 13 | #include <linux/init.h> | |
| 14 | #include <linux/io.h> | |
| 15 | #include <linux/string.h> | |
| 16 | ||
| 17 | #include <asm/bootinfo.h> | |
| 18 | #include <asm/addrspace.h> | |
| 19 | ||
| 20 | #include "common.h" | |
| 21 | ||
| 22 | static inline int is_valid_ram_addr(void *addr) | |
| 23 | { | |
| 24 | if (((u32) addr > KSEG0) && | |
| 25 | ((u32) addr < (KSEG0 + ATH79_MEM_SIZE_MAX))) | |
| 26 | return 1; | |
| 27 | ||
| 28 | if (((u32) addr > KSEG1) && | |
| 29 | ((u32) addr < (KSEG1 + ATH79_MEM_SIZE_MAX))) | |
| 30 | return 1; | |
| 31 | ||
| 32 | return 0; | |
| 33 | } | |
| 34 | ||
| 35 | static __init void ath79_prom_init_cmdline(int argc, char **argv) | |
| 36 | { | |
| 37 | int i; | |
| 38 | ||
| 39 | if (!is_valid_ram_addr(argv)) | |
| 40 | return; | |
| 41 | ||
| 42 | for (i = 0; i < argc; i++) | |
| 43 | if (is_valid_ram_addr(argv[i])) { | |
| 44 | strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline)); | |
| 45 | strlcat(arcs_cmdline, argv[i], sizeof(arcs_cmdline)); | |
| 46 | } | |
| 47 | } | |
| 48 | ||
| 49 | void __init prom_init(void) | |
| 50 | { | |
| 51 | ath79_prom_init_cmdline(fw_arg0, (char **)fw_arg1); | |
| 52 | } | |
| 53 | ||
| 54 | void __init prom_free_prom_memory(void) | |
| 55 | { | |
| 56 | /* We do not have to prom memory to free */ | |
| 57 | } |