1 /* 2 * Old U-boot compatibility for 83xx 3 * 4 * Author: Scott Wood <scottwood@freescale.com> 5 * 6 * Copyright (c) 2007 Freescale Semiconductor, Inc. 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License version 2 as published 10 * by the Free Software Foundation. 11 */ 12 13 #include "ops.h" 14 #include "stdio.h" 15 #include "cuboot.h" 16 17 #define TARGET_83xx 18 #include "ppcboot.h" 19 20 static bd_t bd; 21 22 static void platform_fixups(void) 23 { 24 void *soc; 25 26 dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); 27 dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr); 28 dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq); 29 30 /* Unfortunately, the specific model number is encoded in the 31 * soc node name in existing dts files -- once that is fixed, 32 * this can do a simple path lookup. 33 */ 34 soc = find_node_by_devtype(NULL, "soc"); 35 if (soc) { 36 void *serial = NULL; 37 38 setprop(soc, "bus-frequency", &bd.bi_busfreq, 39 sizeof(bd.bi_busfreq)); 40 41 while ((serial = find_node_by_devtype(serial, "serial"))) { 42 if (get_parent(serial) != soc) 43 continue; 44 45 setprop(serial, "clock-frequency", &bd.bi_busfreq, 46 sizeof(bd.bi_busfreq)); 47 } 48 } 49 } 50 51 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, 52 unsigned long r6, unsigned long r7) 53 { 54 CUBOOT_INIT(); 55 ft_init(_dtb_start, _dtb_end - _dtb_start, 32); 56 serial_console_init(); 57 platform_ops.fixups = platform_fixups; 58 } 59