xref: /openbmc/linux/arch/powerpc/boot/ep8248e.c (revision 55fd7e02)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Embedded Planet EP8248E with PlanetCore firmware
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 "planetcore.h"
13 #include "pq2.h"
14 
15 static char *table;
16 static u64 mem_size;
17 
18 #include <io.h>
19 
20 static void platform_fixups(void)
21 {
22 	u64 val;
23 
24 	dt_fixup_memory(0, mem_size);
25 	planetcore_set_mac_addrs(table);
26 
27 	if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, &val)) {
28 		printf("No PlanetCore crystal frequency key.\r\n");
29 		return;
30 	}
31 
32 	pq2_fixup_clocks(val);
33 }
34 
35 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
36                    unsigned long r6, unsigned long r7)
37 {
38 	table = (char *)r3;
39 	planetcore_prepare_table(table);
40 
41 	if (!planetcore_get_decimal(table, PLANETCORE_KEY_MB_RAM, &mem_size))
42 		return;
43 
44 	mem_size *= 1024 * 1024;
45 	simple_alloc_init(_end, mem_size - (unsigned long)_end, 32, 64);
46 
47 	fdt_init(_dtb_start);
48 
49 	planetcore_set_stdout_path(table);
50 	serial_console_init();
51 	platform_ops.fixups = platform_fixups;
52 }
53