1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Old U-boot compatibility for 85xx
4  *
5  * Author: Scott Wood <scottwood@freescale.com>
6  *
7  * Copyright (c) 2007 Freescale Semiconductor, Inc.
8  */
9 
10 #include "ops.h"
11 #include "stdio.h"
12 #include "cuboot.h"
13 
14 #define TARGET_85xx
15 #define TARGET_CPM2
16 #include "ppcboot.h"
17 
18 static bd_t bd;
19 
20 static void platform_fixups(void)
21 {
22 	void *devp;
23 
24 	dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
25 	dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
26 	dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
27 	dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
28 	dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, 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 	devp = find_node_by_devtype(NULL, "soc");
35 	if (devp) {
36 		void *serial = NULL;
37 
38 		setprop(devp, "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) != devp)
43 				continue;
44 
45 			setprop(serial, "clock-frequency", &bd.bi_busfreq,
46 			        sizeof(bd.bi_busfreq));
47 		}
48 	}
49 
50 	devp = find_node_by_compatible(NULL, "fsl,cpm2-brg");
51 	if (devp)
52 		setprop(devp, "clock-frequency", &bd.bi_brgfreq,
53 		        sizeof(bd.bi_brgfreq));
54 }
55 
56 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
57                    unsigned long r6, unsigned long r7)
58 {
59 	CUBOOT_INIT();
60 	fdt_init(_dtb_start);
61 	serial_console_init();
62 	platform_ops.fixups = platform_fixups;
63 }
64