1 /* 2 * linux/arch/arm/mach-mmp/mmp-dt.c 3 * 4 * Copyright (C) 2012 Marvell Technology Group Ltd. 5 * Author: Haojian Zhuang <haojian.zhuang@marvell.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * publishhed by the Free Software Foundation. 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 <mach/irqs.h> 18 19 #include "common.h" 20 21 extern struct sys_timer pxa168_timer; 22 extern void __init icu_init_irq(void); 23 24 static const struct of_dev_auxdata mmp_auxdata_lookup[] __initconst = { 25 OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.0", NULL), 26 OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.1", NULL), 27 OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4026000, "pxa2xx-uart.2", NULL), 28 OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4011000, "pxa2xx-i2c.0", NULL), 29 OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4025000, "pxa2xx-i2c.1", NULL), 30 OF_DEV_AUXDATA("mrvl,mmp-gpio", 0xd4019000, "pxa-gpio", NULL), 31 OF_DEV_AUXDATA("mrvl,mmp-rtc", 0xd4010000, "sa1100-rtc", NULL), 32 {} 33 }; 34 35 static int __init mmp_intc_add_irq_domain(struct device_node *np, 36 struct device_node *parent) 37 { 38 irq_domain_add_simple(np, 0); 39 return 0; 40 } 41 42 static int __init mmp_gpio_add_irq_domain(struct device_node *np, 43 struct device_node *parent) 44 { 45 irq_domain_add_simple(np, IRQ_GPIO_START); 46 return 0; 47 } 48 49 static const struct of_device_id mmp_irq_match[] __initconst = { 50 { .compatible = "mrvl,mmp-intc", .data = mmp_intc_add_irq_domain, }, 51 { .compatible = "mrvl,mmp-gpio", .data = mmp_gpio_add_irq_domain, }, 52 {} 53 }; 54 55 static void __init mmp_dt_init(void) 56 { 57 58 of_irq_init(mmp_irq_match); 59 60 of_platform_populate(NULL, of_default_bus_match_table, 61 mmp_auxdata_lookup, NULL); 62 } 63 64 static const char *pxa168_dt_board_compat[] __initdata = { 65 "mrvl,pxa168-aspenite", 66 NULL, 67 }; 68 69 DT_MACHINE_START(PXA168_DT, "Marvell PXA168 (Device Tree Support)") 70 .map_io = mmp_map_io, 71 .init_irq = icu_init_irq, 72 .timer = &pxa168_timer, 73 .init_machine = mmp_dt_init, 74 .dt_compat = pxa168_dt_board_compat, 75 MACHINE_END 76