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
|
/*
* Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2011 Linaro Ltd.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/pinctrl/machine.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>
#include <mach/mx53.h>
/*
* Lookup table for attaching a specific name and platform_data pointer to
* devices as they get created by of_platform_populate(). Ideally this table
* would not exist, but the current clock implementation depends on some devices
* having a specific name.
*/
static const struct of_dev_auxdata imx53_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("fsl,imx53-uart", MX53_UART1_BASE_ADDR, "imx21-uart.0", NULL),
OF_DEV_AUXDATA("fsl,imx53-uart", MX53_UART2_BASE_ADDR, "imx21-uart.1", NULL),
OF_DEV_AUXDATA("fsl,imx53-uart", MX53_UART3_BASE_ADDR, "imx21-uart.2", NULL),
OF_DEV_AUXDATA("fsl,imx53-uart", MX53_UART4_BASE_ADDR, "imx21-uart.3", NULL),
OF_DEV_AUXDATA("fsl,imx53-uart", MX53_UART5_BASE_ADDR, "imx21-uart.4", NULL),
OF_DEV_AUXDATA("fsl,imx53-fec", MX53_FEC_BASE_ADDR, "imx25-fec.0", NULL),
OF_DEV_AUXDATA("fsl,imx53-esdhc", MX53_ESDHC1_BASE_ADDR, "sdhci-esdhc-imx53.0", NULL),
OF_DEV_AUXDATA("fsl,imx53-esdhc", MX53_ESDHC2_BASE_ADDR, "sdhci-esdhc-imx53.1", NULL),
OF_DEV_AUXDATA("fsl,imx53-esdhc", MX53_ESDHC3_BASE_ADDR, "sdhci-esdhc-imx53.2", NULL),
OF_DEV_AUXDATA("fsl,imx53-esdhc", MX53_ESDHC4_BASE_ADDR, "sdhci-esdhc-imx53.3", NULL),
OF_DEV_AUXDATA("fsl,imx53-ecspi", MX53_ECSPI1_BASE_ADDR, "imx51-ecspi.0", NULL),
OF_DEV_AUXDATA("fsl,imx53-ecspi", MX53_ECSPI2_BASE_ADDR, "imx51-ecspi.1", NULL),
OF_DEV_AUXDATA("fsl,imx53-cspi", MX53_CSPI_BASE_ADDR, "imx35-cspi.0", NULL),
OF_DEV_AUXDATA("fsl,imx53-i2c", MX53_I2C1_BASE_ADDR, "imx-i2c.0", NULL),
OF_DEV_AUXDATA("fsl,imx53-i2c", MX53_I2C2_BASE_ADDR, "imx-i2c.1", NULL),
OF_DEV_AUXDATA("fsl,imx53-i2c", MX53_I2C3_BASE_ADDR, "imx-i2c.2", NULL),
OF_DEV_AUXDATA("fsl,imx53-sdma", MX53_SDMA_BASE_ADDR, "imx35-sdma", NULL),
OF_DEV_AUXDATA("fsl,imx53-wdt", MX53_WDOG1_BASE_ADDR, "imx2-wdt.0", NULL),
{ /* sentinel */ }
};
static int __init imx53_tzic_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
irq_domain_add_legacy(np, 128, 0, 0, &irq_domain_simple_ops, NULL);
return 0;
}
static int __init imx53_gpio_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
gpio_irq_base -= 32;
irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, NULL);
return 0;
}
static const struct of_device_id imx53_irq_match[] __initconst = {
{ .compatible = "fsl,imx53-tzic", .data = imx53_tzic_add_irq_domain, },
{ .compatible = "fsl,imx53-gpio", .data = imx53_gpio_add_irq_domain, },
{ /* sentinel */ }
};
static const struct of_device_id imx53_iomuxc_of_match[] __initconst = {
{ .compatible = "fsl,imx53-iomuxc-ard", .data = imx53_ard_common_init, },
{ .compatible = "fsl,imx53-iomuxc-evk", .data = imx53_evk_common_init, },
{ .compatible = "fsl,imx53-iomuxc-qsb", .data = imx53_qsb_common_init, },
{ .compatible = "fsl,imx53-iomuxc-smd", .data = imx53_smd_common_init, },
{ /* sentinel */ }
};
static void __init imx53_qsb_init(void)
{
struct clk *clk;
clk = clk_get_sys(NULL, "ssi_ext1");
if (IS_ERR(clk)) {
pr_err("failed to get clk ssi_ext1\n");
return;
}
clk_register_clkdev(clk, NULL, "0-000a");
}
static void __init imx53_dt_init(void)
{
struct device_node *node;
const struct of_device_id *of_id;
void (*func)(void);
of_irq_init(imx53_irq_match);
pinctrl_provide_dummies();
node = of_find_matching_node(NULL, imx53_iomuxc_of_match);
if (node) {
of_id = of_match_node(imx53_iomuxc_of_match, node);
func = of_id->data;
func();
of_node_put(node);
}
if (of_machine_is_compatible("fsl,imx53-qsb"))
imx53_qsb_init();
of_platform_populate(NULL, of_default_bus_match_table,
imx53_auxdata_lookup, NULL);
}
static void __init imx53_timer_init(void)
{
mx53_clocks_init_dt();
}
static struct sys_timer imx53_timer = {
.init = imx53_timer_init,
};
static const char *imx53_dt_board_compat[] __initdata = {
"fsl,imx53-ard",
"fsl,imx53-evk",
"fsl,imx53-qsb",
"fsl,imx53-smd",
"fsl,imx53",
NULL
};
DT_MACHINE_START(IMX53_DT, "Freescale i.MX53 (Device Tree Support)")
.map_io = mx53_map_io,
.init_early = imx53_init_early,
.init_irq = mx53_init_irq,
.handle_irq = imx53_handle_irq,
.timer = &imx53_timer,
.init_machine = imx53_dt_init,
.dt_compat = imx53_dt_board_compat,
.restart = mxc_restart,
MACHINE_END
|
