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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/*
* Keymile km82xx support
* Copyright 2008-2011 DENX Software Engineering GmbH
* Author: Heiko Schocher <hs@denx.de>
*
* based on code from:
* Copyright 2007 Freescale Semiconductor, Inc.
* Author: Scott Wood <scottwood@freescale.com>
*
* 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.
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/fsl_devices.h>
#include <linux/of_platform.h>
#include <asm/io.h>
#include <asm/cpm2.h>
#include <asm/udbg.h>
#include <asm/machdep.h>
#include <asm/time.h>
#include <asm/mpc8260.h>
#include <asm/prom.h>
#include <sysdev/fsl_soc.h>
#include <sysdev/cpm2_pic.h>
#include "pq2.h"
static void __init km82xx_pic_init(void)
{
struct device_node *np = of_find_compatible_node(NULL, NULL,
"fsl,pq2-pic");
if (!np) {
printk(KERN_ERR "PIC init: can not find cpm-pic node\n");
return;
}
cpm2_pic_init(np);
of_node_put(np);
}
struct cpm_pin {
int port, pin, flags;
};
static __initdata struct cpm_pin km82xx_pins[] = {
/* SMC1 */
{2, 4, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{2, 5, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
/* SMC2 */
{0, 8, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{0, 9, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
/* SCC1 */
{2, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{2, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{3, 31, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
/* SCC4 */
{2, 25, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{2, 24, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{2, 9, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{2, 8, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{3, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{3, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
/* FCC1 */
{0, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{0, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{0, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{0, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{0, 18, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
{0, 19, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
{0, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
{0, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
{0, 26, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
{0, 27, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
{0, 28, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
{0, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
{0, 30, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
{0, 31, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
{2, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{2, 23, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
/* FCC2 */
{1, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{1, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{1, 20, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{1, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{1, 22, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
{1, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
{1, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
{1, 25, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
{1, 26, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{1, 27, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{1, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{1, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
{1, 30, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{1, 31, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
{2, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
{2, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
/* MDC */
{0, 13, CPM_PIN_OUTPUT | CPM_PIN_GPIO},
#if defined(CONFIG_I2C_CPM)
/* I2C */
{3, 14, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_OPENDRAIN},
{3, 15, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_OPENDRAIN},
#endif
/* USB */
{0, 10, CPM_PIN_OUTPUT | CPM_PIN_GPIO}, /* FULL_SPEED */
{0, 11, CPM_PIN_OUTPUT | CPM_PIN_GPIO}, /*/SLAVE */
{2, 10, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* RXN */
{2, 11, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* RXP */
{2, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, /* /OE */
{2, 27, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* RXCLK */
{3, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, /* TXP */
{3, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, /* TXN */
{3, 25, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* RXD */
/* SPI */
{3, 16, CPM_PIN_INPUT | CPM_PIN_SECONDARY},/* SPI_MISO PD16 */
{3, 17, CPM_PIN_INPUT | CPM_PIN_SECONDARY},/* SPI_MOSI PD17 */
{3, 18, CPM_PIN_INPUT | CPM_PIN_SECONDARY},/* SPI_CLK PD18 */
};
static void __init init_ioports(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(km82xx_pins); i++) {
const struct cpm_pin *pin = &km82xx_pins[i];
cpm2_set_pin(pin->port, pin->pin, pin->flags);
}
cpm2_smc_clk_setup(CPM_CLK_SMC2, CPM_BRG8);
cpm2_smc_clk_setup(CPM_CLK_SMC1, CPM_BRG7);
cpm2_clk_setup(CPM_CLK_SCC1, CPM_CLK11, CPM_CLK_RX);
cpm2_clk_setup(CPM_CLK_SCC1, CPM_CLK11, CPM_CLK_TX);
cpm2_clk_setup(CPM_CLK_SCC3, CPM_CLK5, CPM_CLK_RTX);
cpm2_clk_setup(CPM_CLK_SCC4, CPM_CLK7, CPM_CLK_RX);
cpm2_clk_setup(CPM_CLK_SCC4, CPM_CLK8, CPM_CLK_TX);
cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK10, CPM_CLK_RX);
cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK9, CPM_CLK_TX);
cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK13, CPM_CLK_RX);
cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK14, CPM_CLK_TX);
/* Force USB FULL SPEED bit to '1' */
setbits32(&cpm2_immr->im_ioport.iop_pdata, 1 << (31 - 10));
/* clear USB_SLAVE */
clrbits32(&cpm2_immr->im_ioport.iop_pdata, 1 << (31 - 11));
}
static void __init km82xx_setup_arch(void)
{
if (ppc_md.progress)
ppc_md.progress("km82xx_setup_arch()", 0);
cpm2_reset();
/* When this is set, snooping CPM DMA from RAM causes
* machine checks. See erratum SIU18.
*/
clrbits32(&cpm2_immr->im_siu_conf.siu_82xx.sc_bcr, MPC82XX_BCR_PLDP);
init_ioports();
if (ppc_md.progress)
ppc_md.progress("km82xx_setup_arch(), finish", 0);
}
static __initdata struct of_device_id of_bus_ids[] = {
{ .compatible = "simple-bus", },
{},
};
static int __init declare_of_platform_devices(void)
{
of_platform_bus_probe(NULL, of_bus_ids, NULL);
return 0;
}
machine_device_initcall(km82xx, declare_of_platform_devices);
/*
* Called very early, device-tree isn't unflattened
*/
static int __init km82xx_probe(void)
{
unsigned long root = of_get_flat_dt_root();
return of_flat_dt_is_compatible(root, "keymile,km82xx");
}
define_machine(km82xx)
{
.name = "Keymile km82xx",
.probe = km82xx_probe,
.setup_arch = km82xx_setup_arch,
.init_IRQ = km82xx_pic_init,
.get_irq = cpm2_get_irq,
.calibrate_decr = generic_calibrate_decr,
.restart = pq2_restart,
.progress = udbg_progress,
};
|
