powerpc/boot/cuboot-85xx.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Old U-boot compatibility for 85xx
0004  *
0005  * Author: Scott Wood <scottwood@freescale.com>
0006  *
0007  * Copyright (c) 2007 Freescale Semiconductor, Inc.
0008  */
0009
0010 #include "ops.h"
0011 #include "stdio.h"
0012 #include "cuboot.h"
0013
0014 #define TARGET_85xx
0015 #define TARGET_HAS_ETH3
0016 #include "ppcboot.h"
0017
0018 static bd_t bd;
0019
0020 static void platform_fixups(void)
0021 {
0022     void *soc;
0023
0024     dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
0025     dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
0026     dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
0027     dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
0028     dt_fixup_mac_address_by_alias("ethernet3", bd.bi_enet3addr);
0029     dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, bd.bi_busfreq);
0030
0031     /* Unfortunately, the specific model number is encoded in the
0032      * soc node name in existing dts files -- once that is fixed,
0033      * this can do a simple path lookup.
0034      */
0035     soc = find_node_by_devtype(NULL, "soc");
0036     if (soc) {
0037         void *serial = NULL;
0038
0039         setprop(soc, "bus-frequency", &bd.bi_busfreq,
0040                 sizeof(bd.bi_busfreq));
0041
0042         while ((serial = find_node_by_devtype(serial, "serial"))) {
0043             if (get_parent(serial) != soc)
0044                 continue;
0045
0046             setprop(serial, "clock-frequency", &bd.bi_busfreq,
0047                     sizeof(bd.bi_busfreq));
0048         }
0049     }
0050 }
0051
0052 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
0053                    unsigned long r6, unsigned long r7)
0054 {
0055     CUBOOT_INIT();
0056     fdt_init(_dtb_start);
0057     serial_console_init();
0058     platform_ops.fixups = platform_fixups;
0059 }