powerpc/boot/mvme7100.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Motload compatibility for the Emerson/Artesyn MVME7100
0004  *
0005  * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A.
0006  *
0007  * Author: Alessio Igor Bogani <alessio.bogani@elettra.eu>
0008  */
0009
0010 #include "ops.h"
0011 #include "stdio.h"
0012 #include "cuboot.h"
0013
0014 #define TARGET_86xx
0015 #define TARGET_HAS_ETH1
0016 #define TARGET_HAS_ETH2
0017 #define TARGET_HAS_ETH3
0018 #include "ppcboot.h"
0019
0020 static bd_t bd;
0021
0022 BSS_STACK(16384);
0023
0024 static void mvme7100_fixups(void)
0025 {
0026     void *devp;
0027     unsigned long busfreq = bd.bi_busfreq * 1000000;
0028
0029     dt_fixup_cpu_clocks(bd.bi_intfreq * 1000000, busfreq / 4, busfreq);
0030
0031     devp = finddevice("/soc@f1000000");
0032     if (devp)
0033         setprop(devp, "bus-frequency", &busfreq, sizeof(busfreq));
0034
0035     devp = finddevice("/soc/serial@4500");
0036     if (devp)
0037         setprop(devp, "clock-frequency", &busfreq, sizeof(busfreq));
0038
0039     dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
0040
0041     dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
0042     dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
0043     dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
0044     dt_fixup_mac_address_by_alias("ethernet3", bd.bi_enet3addr);
0045 }
0046
0047 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
0048            unsigned long r6, unsigned long r7)
0049 {
0050     CUBOOT_INIT();
0051     fdt_init(_dtb_start);
0052     serial_console_init();
0053     platform_ops.fixups = mvme7100_fixups;
0054 }