| Haojian Zhuang | 5d48976 | 2012-03-01 13:25:09 +0800 | [diff] [blame] | 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 |