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
|
/*
* Copyright 2012 (C), Jason Cooper <jason@lakedaemon.net>
*
* arch/arm/mach-kirkwood/board-dt.c
*
* Flattened Device Tree board initialization
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/clk-provider.h>
#include <linux/clk/mvebu.h>
#include <linux/kexec.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/bridge-regs.h>
#include <linux/platform_data/usb-ehci-orion.h>
#include <plat/irq.h>
#include <plat/common.h>
#include "common.h"
static struct of_device_id kirkwood_dt_match_table[] __initdata = {
{ .compatible = "simple-bus", },
{ }
};
/*
* There are still devices that doesn't know about DT yet. Get clock
* gates here and add a clock lookup alias, so that old platform
* devices still work.
*/
static void __init kirkwood_legacy_clk_init(void)
{
struct device_node *np = of_find_compatible_node(
NULL, NULL, "marvell,kirkwood-gating-clock");
struct of_phandle_args clkspec;
struct clk *clk;
clkspec.np = np;
clkspec.args_count = 1;
clkspec.args[0] = CGC_BIT_PEX0;
orion_clkdev_add("0", "pcie",
of_clk_get_from_provider(&clkspec));
clkspec.args[0] = CGC_BIT_PEX1;
orion_clkdev_add("1", "pcie",
of_clk_get_from_provider(&clkspec));
clkspec.args[0] = CGC_BIT_SDIO;
orion_clkdev_add(NULL, "mvsdio",
of_clk_get_from_provider(&clkspec));
/*
* The ethernet interfaces forget the MAC address assigned by
* u-boot if the clocks are turned off. Until proper DT support
* is available we always enable them for now.
*/
clkspec.args[0] = CGC_BIT_GE0;
clk = of_clk_get_from_provider(&clkspec);
orion_clkdev_add(NULL, "mv643xx_eth_port.0", clk);
clk_prepare_enable(clk);
clkspec.args[0] = CGC_BIT_GE1;
clk = of_clk_get_from_provider(&clkspec);
orion_clkdev_add(NULL, "mv643xx_eth_port.1", clk);
clk_prepare_enable(clk);
}
static void __init kirkwood_of_clk_init(void)
{
mvebu_clocks_init();
kirkwood_legacy_clk_init();
}
static void __init kirkwood_dt_init(void)
{
pr_info("Kirkwood: %s, TCLK=%d.\n", kirkwood_id(), kirkwood_tclk);
/*
* Disable propagation of mbus errors to the CPU local bus,
* as this causes mbus errors (which can occur for example
* for PCI aborts) to throw CPU aborts, which we're not set
* up to deal with.
*/
writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
kirkwood_setup_wins();
kirkwood_l2_init();
/* Setup root of clk tree */
kirkwood_of_clk_init();
kirkwood_cpuidle_init();
#ifdef CONFIG_KEXEC
kexec_reinit = kirkwood_enable_pcie;
#endif
if (of_machine_is_compatible("globalscale,dreamplug"))
dreamplug_init();
if (of_machine_is_compatible("globalscale,guruplug"))
guruplug_dt_init();
if (of_machine_is_compatible("dlink,dns-kirkwood"))
dnskw_init();
if (of_machine_is_compatible("iom,iconnect"))
iconnect_init();
if (of_machine_is_compatible("raidsonic,ib-nas62x0"))
ib62x0_init();
if (of_machine_is_compatible("qnap,ts219"))
qnap_dt_ts219_init();
if (of_machine_is_compatible("seagate,dockstar"))
dockstar_dt_init();
if (of_machine_is_compatible("seagate,goflexnet"))
goflexnet_init();
if (of_machine_is_compatible("buffalo,lsxl"))
lsxl_init();
if (of_machine_is_compatible("iom,ix2-200"))
iomega_ix2_200_init();
if (of_machine_is_compatible("keymile,km_kirkwood"))
km_kirkwood_init();
if (of_machine_is_compatible("lacie,cloudbox") ||
of_machine_is_compatible("lacie,inetspace_v2") ||
of_machine_is_compatible("lacie,netspace_lite_v2") ||
of_machine_is_compatible("lacie,netspace_max_v2") ||
of_machine_is_compatible("lacie,netspace_mini_v2") ||
of_machine_is_compatible("lacie,netspace_v2"))
ns2_init();
if (of_machine_is_compatible("mpl,cec4"))
mplcec4_init();
if (of_machine_is_compatible("netgear,readynas-duo-v2"))
netgear_readynas_init();
if (of_machine_is_compatible("plathome,openblocks-a6"))
openblocks_a6_init();
if (of_machine_is_compatible("usi,topkick"))
usi_topkick_init();
of_platform_populate(NULL, kirkwood_dt_match_table, NULL, NULL);
}
static const char * const kirkwood_dt_board_compat[] = {
"globalscale,dreamplug",
"globalscale,guruplug",
"dlink,dns-320",
"dlink,dns-325",
"iom,iconnect",
"raidsonic,ib-nas62x0",
"qnap,ts219",
"seagate,dockstar",
"seagate,goflexnet",
"buffalo,lsxl",
"iom,ix2-200",
"keymile,km_kirkwood",
"lacie,cloudbox",
"lacie,inetspace_v2",
"lacie,netspace_lite_v2",
"lacie,netspace_max_v2",
"lacie,netspace_mini_v2",
"lacie,netspace_v2",
"mpl,cec4",
"netgear,readynas-duo-v2",
"plathome,openblocks-a6",
"usi,topkick",
"zyxel,nsa310",
NULL
};
DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
/* Maintainer: Jason Cooper <jason@lakedaemon.net> */
.map_io = kirkwood_map_io,
.init_early = kirkwood_init_early,
.init_irq = orion_dt_init_irq,
.init_time = kirkwood_timer_init,
.init_machine = kirkwood_dt_init,
.restart = kirkwood_restart,
.dt_compat = kirkwood_dt_board_compat,
MACHINE_END
|
