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
|
/***************************************************************************/
/*
* linux/arch/m68knommu/platform/520x/config.c
*
* Copyright (C) 2005, Freescale (www.freescale.com)
* Copyright (C) 2005, Intec Automation (mike@steroidmicros.com)
* Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com)
* Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
*/
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
/***************************************************************************/
static struct mcf_platform_uart m520x_uart_platform[] = {
{
.mapbase = MCF_MBAR + MCFUART_BASE1,
.irq = MCFINT_VECBASE + MCFINT_UART0,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = MCFINT_VECBASE + MCFINT_UART1,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE3,
.irq = MCFINT_VECBASE + MCFINT_UART2,
},
{ },
};
static struct platform_device m520x_uart = {
.name = "mcfuart",
.id = 0,
.dev.platform_data = m520x_uart_platform,
};
static struct resource m520x_fec_resources[] = {
{
.start = MCF_MBAR + 0x30000,
.end = MCF_MBAR + 0x30000 + 0x7ff,
.flags = IORESOURCE_MEM,
},
{
.start = 64 + 36,
.end = 64 + 36,
.flags = IORESOURCE_IRQ,
},
{
.start = 64 + 40,
.end = 64 + 40,
.flags = IORESOURCE_IRQ,
},
{
.start = 64 + 42,
.end = 64 + 42,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device m520x_fec = {
.name = "fec",
.id = 0,
.num_resources = ARRAY_SIZE(m520x_fec_resources),
.resource = m520x_fec_resources,
};
static struct platform_device *m520x_devices[] __initdata = {
&m520x_uart,
&m520x_fec,
};
/***************************************************************************/
#define INTC0 (MCF_MBAR + MCFICM_INTC0)
static void __init m520x_uart_init_line(int line, int irq)
{
u16 par;
u8 par2;
writeb(0x03, INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line);
switch (line) {
case 0:
par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
par |= MCF_GPIO_PAR_UART_PAR_UTXD0 |
MCF_GPIO_PAR_UART_PAR_URXD0;
writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
break;
case 1:
par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
par |= MCF_GPIO_PAR_UART_PAR_UTXD1 |
MCF_GPIO_PAR_UART_PAR_URXD1;
writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
break;
case 2:
par2 = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
par2 &= ~0x0F;
par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 |
MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2;
writeb(par2, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
break;
}
}
static void __init m520x_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m520x_uart_platform);
int line;
for (line = 0; (line < nrlines); line++)
m520x_uart_init_line(line, m520x_uart_platform[line].irq);
}
/***************************************************************************/
static void __init m520x_fec_init(void)
{
u8 v;
/* Unmask FEC interrupts at ColdFire interrupt controller */
writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 36);
writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 40);
writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 42);
/* Set multi-function pins to ethernet mode */
v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FEC);
writeb(v | 0xf0, MCF_IPSBAR + MCF_GPIO_PAR_FEC);
v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
writeb(v | 0x0f, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
}
/***************************************************************************/
static void m520x_cpu_reset(void)
{
local_irq_disable();
__raw_writeb(MCF_RCR_SWRESET, MCF_RCR);
}
/***************************************************************************/
void __init config_BSP(char *commandp, int size)
{
mach_reset = m520x_cpu_reset;
m520x_uarts_init();
m520x_fec_init();
}
/***************************************************************************/
static int __init init_BSP(void)
{
platform_add_devices(m520x_devices, ARRAY_SIZE(m520x_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/
|
