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9f0749e3 SH |
1 | /* |
2 | * Copyright 2012 Sascha Hauer, Pengutronix | |
3 | * | |
4 | * The code contained herein is licensed under the GNU General Public | |
5 | * License. You may obtain a copy of the GNU General Public License | |
6 | * Version 2 or later at the following locations: | |
7 | * | |
8 | * http://www.opensource.org/licenses/gpl-license.html | |
9 | * http://www.gnu.org/copyleft/gpl.html | |
10 | */ | |
11 | ||
12 | #include <linux/irq.h> | |
13 | #include <linux/irqdomain.h> | |
14 | #include <linux/of_irq.h> | |
15 | #include <linux/of_platform.h> | |
16 | #include <asm/mach/arch.h> | |
17 | #include <asm/mach/time.h> | |
18 | #include <mach/common.h> | |
19 | #include <mach/mx27.h> | |
20 | ||
21 | static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = { | |
22 | OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART1_BASE_ADDR, "imx21-uart.0", NULL), | |
23 | OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART2_BASE_ADDR, "imx21-uart.1", NULL), | |
24 | OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART3_BASE_ADDR, "imx21-uart.2", NULL), | |
25 | OF_DEV_AUXDATA("fsl,imx27-fec", MX27_FEC_BASE_ADDR, "imx27-fec.0", NULL), | |
26 | OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C1_BASE_ADDR, "imx-i2c.0", NULL), | |
27 | OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C2_BASE_ADDR, "imx-i2c.1", NULL), | |
28 | OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI1_BASE_ADDR, "imx27-cspi.0", NULL), | |
29 | OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI2_BASE_ADDR, "imx27-cspi.1", NULL), | |
30 | OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI3_BASE_ADDR, "imx27-cspi.2", NULL), | |
31 | OF_DEV_AUXDATA("fsl,imx27-wdt", MX27_WDOG_BASE_ADDR, "imx2-wdt.0", NULL), | |
32 | { /* sentinel */ } | |
33 | }; | |
34 | ||
35 | static int __init imx27_avic_add_irq_domain(struct device_node *np, | |
36 | struct device_node *interrupt_parent) | |
37 | { | |
38 | irq_domain_add_simple(np, 0); | |
39 | return 0; | |
40 | } | |
41 | ||
42 | static int __init imx27_gpio_add_irq_domain(struct device_node *np, | |
43 | struct device_node *interrupt_parent) | |
44 | { | |
45 | static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS; | |
46 | ||
47 | irq_domain_add_simple(np, gpio_irq_base); | |
48 | ||
49 | return 0; | |
50 | } | |
51 | ||
52 | static const struct of_device_id imx27_irq_match[] __initconst = { | |
53 | { .compatible = "fsl,imx27-avic", .data = imx27_avic_add_irq_domain, }, | |
54 | { .compatible = "fsl,imx27-gpio", .data = imx27_gpio_add_irq_domain, }, | |
55 | { /* sentinel */ } | |
56 | }; | |
57 | ||
58 | static void __init imx27_dt_init(void) | |
59 | { | |
60 | of_irq_init(imx27_irq_match); | |
61 | ||
62 | of_platform_populate(NULL, of_default_bus_match_table, | |
63 | imx27_auxdata_lookup, NULL); | |
64 | } | |
65 | ||
66 | static void __init imx27_timer_init(void) | |
67 | { | |
68 | mx27_clocks_init_dt(); | |
69 | } | |
70 | ||
71 | static struct sys_timer imx27_timer = { | |
72 | .init = imx27_timer_init, | |
73 | }; | |
74 | ||
75 | static const char *imx27_dt_board_compat[] __initdata = { | |
76 | "fsl,imx27", | |
77 | NULL | |
78 | }; | |
79 | ||
80 | DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)") | |
81 | .map_io = mx27_map_io, | |
82 | .init_early = imx27_init_early, | |
83 | .init_irq = mx27_init_irq, | |
84 | .handle_irq = imx27_handle_irq, | |
85 | .timer = &imx27_timer, | |
86 | .init_machine = imx27_dt_init, | |
87 | .dt_compat = imx27_dt_board_compat, | |
88 | .restart = mxc_restart, | |
89 | MACHINE_END |