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
15static char *table;
16static u64 mem_size;
17
18#include <io.h>
19
20static void platform_fixups(void)
21{
22 u64 val;
23
24 dt_fixup_memory(start: 0, size: mem_size);
25 planetcore_set_mac_addrs(table);
26
27 if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, val: &val)) {
28 printf(fmt: "No PlanetCore crystal frequency key.\r\n");
29 return;
30 }
31
32 pq2_fixup_clocks(crystal: val);
33}
34
35void 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, val: &mem_size))
42 return;
43
44 mem_size *= 1024 * 1024;
45 simple_alloc_init(base: _end, heap_size: mem_size - (unsigned long)_end, granularity: 32, max_allocs: 64);
46
47 fdt_init(blob: _dtb_start);
48
49 planetcore_set_stdout_path(table);
50 serial_console_init();
51 platform_ops.fixups = platform_fixups;
52}
53

source code of linux/arch/powerpc/boot/ep8248e.c