2 * Copyright 2012 Sascha Hauer, Pengutronix
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:
8 * http://www.opensource.org/licenses/gpl-license.html
9 * http://www.gnu.org/copyleft/gpl.html
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>
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 OF_DEV_AUXDATA("fsl,imx27-nand", MX27_NFC_BASE_ADDR, "mxc_nand.0", NULL),
36 static int __init imx27_avic_add_irq_domain(struct device_node *np,
37 struct device_node *interrupt_parent)
39 irq_domain_add_legacy(np, 64, 0, 0, &irq_domain_simple_ops, NULL);
43 static int __init imx27_gpio_add_irq_domain(struct device_node *np,
44 struct device_node *interrupt_parent)
46 static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
49 irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops,
55 static const struct of_device_id imx27_irq_match[] __initconst = {
56 { .compatible = "fsl,imx27-avic", .data = imx27_avic_add_irq_domain, },
57 { .compatible = "fsl,imx27-gpio", .data = imx27_gpio_add_irq_domain, },
61 static void __init imx27_dt_init(void)
63 of_irq_init(imx27_irq_match);
65 of_platform_populate(NULL, of_default_bus_match_table,
66 imx27_auxdata_lookup, NULL);
69 static void __init imx27_timer_init(void)
71 mx27_clocks_init_dt();
74 static struct sys_timer imx27_timer = {
75 .init = imx27_timer_init,
78 static const char *imx27_dt_board_compat[] __initdata = {
83 DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)")
84 .map_io = mx27_map_io,
85 .init_early = imx27_init_early,
86 .init_irq = mx27_init_irq,
87 .handle_irq = imx27_handle_irq,
88 .timer = &imx27_timer,
89 .init_machine = imx27_dt_init,
90 .dt_compat = imx27_dt_board_compat,
91 .restart = mxc_restart,