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-rw-r--r--arch/ppc/boot/simple/openbios.c128
1 files changed, 0 insertions, 128 deletions
diff --git a/arch/ppc/boot/simple/openbios.c b/arch/ppc/boot/simple/openbios.c
deleted file mode 100644
index 6ff2701598f2..000000000000
--- a/arch/ppc/boot/simple/openbios.c
+++ /dev/null
@@ -1,128 +0,0 @@
1/*
2 * Copyright (c) 2005 DENX Software Engineering
3 * Stefan Roese <sr@denx.de>
4 *
5 * Based on original work by
6 * 2005 (c) SYSGO AG - g.jaeger@sysgo.com
7 *
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2. This program is licensed "as is" without
10 * any warranty of any kind, whether express or implied.
11 *
12 */
13
14#include <linux/types.h>
15#include <linux/string.h>
16#include <asm/ppcboot.h>
17#include <asm/ibm4xx.h>
18#include <asm/reg.h>
19#ifdef CONFIG_40x
20#include <asm/io.h>
21#endif
22
23#if defined(CONFIG_BUBINGA)
24#define BOARD_INFO_VECTOR 0xFFF80B50 /* openbios 1.19 moved this vector down - armin */
25#else
26#define BOARD_INFO_VECTOR 0xFFFE0B50
27#endif
28
29#ifdef CONFIG_40x
30/* Supply a default Ethernet address for those eval boards that don't
31 * ship with one. This is an address from the MBX board I have, so
32 * it is unlikely you will find it on your network.
33 */
34static ushort def_enet_addr[] = { 0x0800, 0x3e26, 0x1559 };
35
36extern unsigned long timebase_period_ns;
37#endif /* CONFIG_40x */
38
39extern unsigned long decompress_kernel(unsigned long load_addr, int num_words,
40 unsigned long cksum);
41
42/* We need to make sure that this is before the images to ensure
43 * that it's in a mapped location. */
44bd_t hold_resid_buf __attribute__ ((__section__ (".data.boot")));
45bd_t *hold_residual = &hold_resid_buf;
46
47typedef struct openbios_board_info {
48 unsigned char bi_s_version[4]; /* Version of this structure */
49 unsigned char bi_r_version[30]; /* Version of the IBM ROM */
50 unsigned int bi_memsize; /* DRAM installed, in bytes */
51#ifdef CONFIG_405EP
52 unsigned char bi_enetaddr[2][6]; /* Local Ethernet MAC address */
53#else /* CONFIG_405EP */
54 unsigned char bi_enetaddr[6]; /* Local Ethernet MAC address */
55#endif /* CONFIG_405EP */
56 unsigned char bi_pci_enetaddr[6]; /* PCI Ethernet MAC address */
57 unsigned int bi_intfreq; /* Processor speed, in Hz */
58 unsigned int bi_busfreq; /* PLB Bus speed, in Hz */
59 unsigned int bi_pci_busfreq; /* PCI Bus speed, in Hz */
60#ifdef CONFIG_405EP
61 unsigned int bi_opb_busfreq; /* OPB Bus speed, in Hz */
62 unsigned int bi_pllouta_freq; /* PLL OUTA speed, in Hz */
63#endif /* CONFIG_405EP */
64} openbios_bd_t;
65
66void *
67load_kernel(unsigned long load_addr, int num_words, unsigned long cksum,
68 void *ign1, void *ign2)
69{
70#ifdef CONFIG_40x
71 openbios_bd_t *openbios_bd = NULL;
72 openbios_bd_t *(*get_board_info)(void) =
73 (openbios_bd_t *(*)(void))(*(unsigned long *)BOARD_INFO_VECTOR);
74
75 /*
76 * On 40x platforms we not only need the MAC-addresses, but also the
77 * clocks and memsize. Now try to get all values using the OpenBIOS
78 * "get_board_info()" callback.
79 */
80 if ((openbios_bd = get_board_info()) != NULL) {
81 /*
82 * Copy bd_info from OpenBIOS struct into U-Boot struct
83 * used by kernel
84 */
85 hold_residual->bi_memsize = openbios_bd->bi_memsize;
86 hold_residual->bi_intfreq = openbios_bd->bi_intfreq;
87 hold_residual->bi_busfreq = openbios_bd->bi_busfreq;
88 hold_residual->bi_pci_busfreq = openbios_bd->bi_pci_busfreq;
89 memcpy(hold_residual->bi_pci_enetaddr, openbios_bd->bi_pci_enetaddr, 6);
90#ifdef CONFIG_405EP
91 memcpy(hold_residual->bi_enetaddr, openbios_bd->bi_enetaddr[0], 6);
92 memcpy(hold_residual->bi_enet1addr, openbios_bd->bi_enetaddr[1], 6);
93 hold_residual->bi_opbfreq = openbios_bd->bi_opb_busfreq;
94 hold_residual->bi_procfreq = openbios_bd->bi_pllouta_freq;
95#else /* CONFIG_405EP */
96 memcpy(hold_residual->bi_enetaddr, openbios_bd->bi_enetaddr, 6);
97#endif /* CONFIG_405EP */
98 } else {
99 /* Hmmm...better try to stuff some defaults.
100 */
101 hold_residual->bi_memsize = 16 * 1024 * 1024;
102 hold_residual->bi_intfreq = 200000000;
103 hold_residual->bi_busfreq = 100000000;
104 hold_residual->bi_pci_busfreq = 66666666;
105
106 /*
107 * Only supply one mac-address in this fallback
108 */
109 memcpy(hold_residual->bi_enetaddr, (void *)def_enet_addr, 6);
110#ifdef CONFIG_405EP
111 hold_residual->bi_opbfreq = 50000000;
112 hold_residual->bi_procfreq = 200000000;
113#endif /* CONFIG_405EP */
114 }
115
116 timebase_period_ns = 1000000000 / hold_residual->bi_intfreq;
117#endif /* CONFIG_40x */
118
119#ifdef CONFIG_440GP
120 /* simply copy the MAC addresses */
121 memcpy(hold_residual->bi_enetaddr, (char *)OPENBIOS_MAC_BASE, 6);
122 memcpy(hold_residual->bi_enet1addr, (char *)(OPENBIOS_MAC_BASE+OPENBIOS_MAC_OFFSET), 6);
123#endif /* CONFIG_440GP */
124
125 decompress_kernel(load_addr, num_words, cksum);
126
127 return (void *)hold_residual;
128}
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