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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* Modified for CMC_PU2 (removed Smart Media support) by Gary Jennejohn
* (2004) garyj@denx.de
*
* Modified for CMC_BASIC by Martin Krause (2005), TQ-Systems GmbH
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/mach-types.h>
#include <asm/arch/AT91RM9200.h>
#include <at91rm9200_net.h>
#include <dm9161.h>
/* ------------------------------------------------------------------------- */
/*
* Miscelaneous platform dependent initialisations
*/
#define CMC_HP_BASIC 1
#define CMC_PU2 2
#define CMC_BASIC 4
int hw_detect (void);
int board_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
AT91PS_PIO piob = AT91C_BASE_PIOB;
AT91PS_PIO pioc = AT91C_BASE_PIOC;
/* Enable Ctrlc */
console_init_f ();
/* Correct IRDA resistor problem */
/* Set PA23_TXD in Output */
/* (AT91PS_PIO) AT91C_BASE_PIOA->PIO_OER = AT91C_PA23_TXD2; */
/* memory and cpu-speed are setup before relocation */
/* so we do _nothing_ here */
/* PIOB and PIOC clock enabling */
*AT91C_PMC_PCER = 1 << AT91C_ID_PIOB;
*AT91C_PMC_PCER = 1 << AT91C_ID_PIOC;
/*
* configure PC0-PC3 as input without pull ups, so RS485 driver enable
* (CMC-PU2) and digital outputs (CMC-BASIC) are deactivated.
*/
pioc->PIO_ODR = AT91C_PIO_PC0 | AT91C_PIO_PC1 |
AT91C_PIO_PC2 | AT91C_PIO_PC3;
pioc->PIO_PPUDR = AT91C_PIO_PC0 | AT91C_PIO_PC1 |
AT91C_PIO_PC2 | AT91C_PIO_PC3;
pioc->PIO_PER = AT91C_PIO_PC0 | AT91C_PIO_PC1 |
AT91C_PIO_PC2 | AT91C_PIO_PC3;
/*
* On CMC-PU2 board configure PB3-PB6 to input without pull ups to
* clear the duo LEDs (the external pull downs assure a proper
* signal). On CMC-BASIC and CMC-HP-BASIC set PB3-PB6 to output and
* drive it high, to configure current measurement on AINx.
*/
if (hw_detect() & CMC_PU2) {
piob->PIO_ODR = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
AT91C_PIO_PB5 | AT91C_PIO_PB6;
}
else if ((hw_detect() & CMC_BASIC) || (hw_detect() & CMC_HP_BASIC)) {
piob->PIO_SODR = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
AT91C_PIO_PB5 | AT91C_PIO_PB6;
piob->PIO_OER = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
AT91C_PIO_PB5 | AT91C_PIO_PB6;
}
piob->PIO_PPUDR = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
AT91C_PIO_PB5 | AT91C_PIO_PB6;
piob->PIO_PER = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
AT91C_PIO_PB5 | AT91C_PIO_PB6;
/*
* arch number of CMC_PU2-Board. MACH_TYPE_CMC_PU2 is not supported in
* the linuxarm kernel, yet.
*/
/* gd->bd->bi_arch_number = MACH_TYPE_CMC_PU2; */
gd->bd->bi_arch_number = 251;
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
return 0;
}
int dram_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
gd->bd->bi_dram[0].start = PHYS_SDRAM;
gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
return 0;
}
int checkboard (void)
{
if (hw_detect() & CMC_PU2)
puts ("Board: CMC-PU2 (Rittal GmbH)\n");
else if (hw_detect() & CMC_BASIC)
puts ("Board: CMC-BASIC (Rittal GmbH)\n");
else if (hw_detect() & CMC_HP_BASIC)
puts ("Board: CMC-HP-BASIC (Rittal GmbH)\n");
else
puts ("Board: unknown\n");
return 0;
}
int hw_detect (void)
{
AT91PS_PIO pio = AT91C_BASE_PIOB;
/* PIOB clock enabling */
*AT91C_PMC_PCER = 1 << AT91C_ID_PIOB;
/* configure PB12 as input without pull up */
pio->PIO_ODR = AT91C_PIO_PB12;
pio->PIO_PPUDR = AT91C_PIO_PB12;
pio->PIO_PER = AT91C_PIO_PB12;
/* configure PB13 as input without pull up */
pio->PIO_ODR = AT91C_PIO_PB13;
pio->PIO_PPUDR = AT91C_PIO_PB13;
pio->PIO_PER = AT91C_PIO_PB13;
/* read board identification pin */
if (pio->PIO_PDSR & AT91C_PIO_PB12)
return ((pio->PIO_PDSR & AT91C_PIO_PB13)
? CMC_PU2 : 0);
else
return ((pio->PIO_PDSR & AT91C_PIO_PB13)
? CMC_HP_BASIC : CMC_BASIC);
}
#ifdef CONFIG_DRIVER_ETHER
#if (CONFIG_COMMANDS & CFG_CMD_NET)
/*
* Name:
* at91rm9200_GetPhyInterface
* Description:
* Initialise the interface functions to the PHY
* Arguments:
* None
* Return value:
* None
*/
void at91rm9200_GetPhyInterface(AT91PS_PhyOps p_phyops)
{
p_phyops->Init = dm9161_InitPhy;
p_phyops->IsPhyConnected = dm9161_IsPhyConnected;
p_phyops->GetLinkSpeed = dm9161_GetLinkSpeed;
p_phyops->AutoNegotiate = dm9161_AutoNegotiate;
}
#endif /* CONFIG_COMMANDS & CFG_CMD_NET */
#endif /* CONFIG_DRIVER_ETHER */
|
