1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Old U-boot compatibility for Esteem 195E Hotfoot CPU Board
*
* Author: Solomon Peachy <solomon@linux-wlan.com>
*/
#include "ops.h"
#include "stdio.h"
#include "reg.h"
#include "dcr.h"
#include "4xx.h"
#include "cuboot.h"
#define TARGET_4xx
#define TARGET_HOTFOOT
#include "ppcboot-hotfoot.h"
static bd_t bd;
#define NUM_REGS 3
static void hotfoot_fixups(void)
{
u32 uart = mfdcr(DCRN_CPC0_UCR) & 0x7f;
dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
dt_fixup_cpu_clocks(bd.bi_procfreq, bd.bi_procfreq, 0);
dt_fixup_clock("/plb", bd.bi_plb_busfreq);
dt_fixup_clock("/plb/opb", bd.bi_opbfreq);
dt_fixup_clock("/plb/ebc", bd.bi_pci_busfreq);
dt_fixup_clock("/plb/opb/serial@ef600300", bd.bi_procfreq / uart);
dt_fixup_clock("/plb/opb/serial@ef600400", bd.bi_procfreq / uart);
dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
/* Is this a single eth/serial board? */
if ((bd.bi_enet1addr[0] == 0) &&
(bd.bi_enet1addr[1] == 0) &&
(bd.bi_enet1addr[2] == 0) &&
(bd.bi_enet1addr[3] == 0) &&
(bd.bi_enet1addr[4] == 0) &&
(bd.bi_enet1addr[5] == 0)) {
void *devp;
printf("Trimming devtree for single serial/eth board\n");
devp = finddevice("/plb/opb/serial@ef600300");
if (!devp)
fatal("Can't find node for /plb/opb/serial@ef600300");
del_node(devp);
devp = finddevice("/plb/opb/ethernet@ef600900");
if (!devp)
fatal("Can't find node for /plb/opb/ethernet@ef600900");
del_node(devp);
}
ibm4xx_quiesce_eth((u32 *)0xef600800, (u32 *)0xef600900);
/* Fix up flash size in fdt for 4M boards. */
if (bd.bi_flashsize < 0x800000) {
u32 regs[NUM_REGS];
void *devp = finddevice("/plb/ebc/nor_flash@0");
if (!devp)
fatal("Can't find FDT node for nor_flash!??");
printf("Fixing devtree for 4M Flash\n");
/* First fix up the base address */
getprop(devp, "reg", regs, sizeof(regs));
regs[0] = 0;
regs[1] = 0xffc00000;
regs[2] = 0x00400000;
setprop(devp, "reg", regs, sizeof(regs));
/* Then the offsets */
devp = finddevice("/plb/ebc/nor_flash@0/partition@0");
if (!devp)
fatal("Can't find FDT node for partition@0");
getprop(devp, "reg", regs, 2*sizeof(u32));
regs[0] -= 0x400000;
setprop(devp, "reg", regs, 2*sizeof(u32));
devp = finddevice("/plb/ebc/nor_flash@0/partition@1");
if (!devp)
fatal("Can't find FDT node for partition@1");
getprop(devp, "reg", regs, 2*sizeof(u32));
regs[0] -= 0x400000;
setprop(devp, "reg", regs, 2*sizeof(u32));
devp = finddevice("/plb/ebc/nor_flash@0/partition@2");
if (!devp)
fatal("Can't find FDT node for partition@2");
getprop(devp, "reg", regs, 2*sizeof(u32));
regs[0] -= 0x400000;
setprop(devp, "reg", regs, 2*sizeof(u32));
devp = finddevice("/plb/ebc/nor_flash@0/partition@3");
if (!devp)
fatal("Can't find FDT node for partition@3");
getprop(devp, "reg", regs, 2*sizeof(u32));
regs[0] -= 0x400000;
setprop(devp, "reg", regs, 2*sizeof(u32));
devp = finddevice("/plb/ebc/nor_flash@0/partition@4");
if (!devp)
fatal("Can't find FDT node for partition@4");
getprop(devp, "reg", regs, 2*sizeof(u32));
regs[0] -= 0x400000;
setprop(devp, "reg", regs, 2*sizeof(u32));
devp = finddevice("/plb/ebc/nor_flash@0/partition@6");
if (!devp)
fatal("Can't find FDT node for partition@6");
getprop(devp, "reg", regs, 2*sizeof(u32));
regs[0] -= 0x400000;
setprop(devp, "reg", regs, 2*sizeof(u32));
/* Delete the FeatFS node */
devp = finddevice("/plb/ebc/nor_flash@0/partition@5");
if (!devp)
fatal("Can't find FDT node for partition@5");
del_node(devp);
}
}
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
CUBOOT_INIT();
platform_ops.fixups = hotfoot_fixups;
platform_ops.exit = ibm40x_dbcr_reset;
fdt_init(_dtb_start);
serial_console_init();
}
|
