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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
61974038 BH |
2 | /* |
3 | * Embedded Planet EP405 with PlanetCore firmware | |
4 | * | |
5 | * (c) Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp,\ | |
6 | * | |
7 | * Based on ep88xc.c by | |
8 | * | |
9 | * Scott Wood <scottwood@freescale.com> | |
10 | * | |
11 | * Copyright (c) 2007 Freescale Semiconductor, Inc. | |
61974038 BH |
12 | */ |
13 | ||
14 | #include "ops.h" | |
15 | #include "stdio.h" | |
16 | #include "planetcore.h" | |
17 | #include "dcr.h" | |
18 | #include "4xx.h" | |
19 | #include "io.h" | |
20 | ||
21 | static char *table; | |
22 | static u64 mem_size; | |
23 | ||
24 | static void platform_fixups(void) | |
25 | { | |
26 | u64 val; | |
27 | void *nvrtc; | |
28 | ||
29 | dt_fixup_memory(0, mem_size); | |
30 | planetcore_set_mac_addrs(table); | |
31 | ||
32 | if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, &val)) { | |
33 | printf("No PlanetCore crystal frequency key.\r\n"); | |
34 | return; | |
35 | } | |
36 | ibm405gp_fixup_clocks(val, 0xa8c000); | |
37 | ibm4xx_quiesce_eth((u32 *)0xef600800, NULL); | |
38 | ibm4xx_fixup_ebc_ranges("/plb/ebc"); | |
39 | ||
40 | if (!planetcore_get_decimal(table, PLANETCORE_KEY_KB_NVRAM, &val)) { | |
41 | printf("No PlanetCore NVRAM size key.\r\n"); | |
42 | return; | |
43 | } | |
44 | nvrtc = finddevice("/plb/ebc/nvrtc@4,200000"); | |
45 | if (nvrtc != NULL) { | |
46 | u32 reg[3] = { 4, 0x200000, 0}; | |
47 | getprop(nvrtc, "reg", reg, 3); | |
48 | reg[2] = (val << 10) & 0xffffffff; | |
49 | setprop(nvrtc, "reg", reg, 3); | |
50 | } | |
51 | } | |
52 | ||
53 | void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, | |
54 | unsigned long r6, unsigned long r7) | |
55 | { | |
56 | table = (char *)r3; | |
57 | planetcore_prepare_table(table); | |
58 | ||
59 | if (!planetcore_get_decimal(table, PLANETCORE_KEY_MB_RAM, &mem_size)) | |
60 | return; | |
61 | ||
62 | mem_size *= 1024 * 1024; | |
63 | simple_alloc_init(_end, mem_size - (unsigned long)_end, 32, 64); | |
64 | ||
65 | fdt_init(_dtb_start); | |
66 | ||
67 | planetcore_set_stdout_path(table); | |
68 | ||
69 | serial_console_init(); | |
70 | platform_ops.fixups = platform_fixups; | |
71 | } |