| Shawn Guo | 13eed98 | 2011-09-06 15:05:25 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2011 Freescale Semiconductor, Inc. |
| 3 | * Copyright 2011 Linaro Ltd. |
| 4 | * |
| 5 | * The code contained herein is licensed under the GNU General Public |
| 6 | * License. You may obtain a copy of the GNU General Public License |
| 7 | * Version 2 or later at the following locations: |
| 8 | * |
| 9 | * http://www.opensource.org/licenses/gpl-license.html |
| 10 | * http://www.gnu.org/copyleft/gpl.html |
| 11 | */ |
| 12 | |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/irq.h> |
| 15 | #include <linux/irqdomain.h> |
| 16 | #include <linux/of.h> |
| 17 | #include <linux/of_irq.h> |
| 18 | #include <linux/of_platform.h> |
| 19 | #include <asm/hardware/cache-l2x0.h> |
| 20 | #include <asm/hardware/gic.h> |
| 21 | #include <asm/mach/arch.h> |
| 22 | #include <asm/mach/time.h> |
| 23 | #include <mach/common.h> |
| 24 | #include <mach/hardware.h> |
| 25 | |
| 26 | static void __init imx6q_init_machine(void) |
| 27 | { |
| 28 | of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); |
| 29 | |
| 30 | imx6q_pm_init(); |
| 31 | } |
| 32 | |
| 33 | static void __init imx6q_map_io(void) |
| 34 | { |
| 35 | imx_lluart_map_io(); |
| 36 | imx_scu_map_io(); |
| 37 | } |
| 38 | |
| 39 | static void __init imx6q_gpio_add_irq_domain(struct device_node *np, |
| 40 | struct device_node *interrupt_parent) |
| 41 | { |
| 42 | static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS - |
| 43 | 32 * 7; /* imx6q gets 7 gpio ports */ |
| 44 | |
| 45 | irq_domain_add_simple(np, gpio_irq_base); |
| 46 | gpio_irq_base += 32; |
| 47 | } |
| 48 | |
| 49 | static const struct of_device_id imx6q_irq_match[] __initconst = { |
| 50 | { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, }, |
| 51 | { .compatible = "fsl,imx6q-gpio", .data = imx6q_gpio_add_irq_domain, }, |
| 52 | { /* sentinel */ } |
| 53 | }; |
| 54 | |
| 55 | static void __init imx6q_init_irq(void) |
| 56 | { |
| 57 | l2x0_of_init(0, ~0UL); |
| 58 | imx_src_init(); |
| 59 | imx_gpc_init(); |
| 60 | of_irq_init(imx6q_irq_match); |
| 61 | } |
| 62 | |
| 63 | static void __init imx6q_timer_init(void) |
| 64 | { |
| 65 | mx6q_clocks_init(); |
| 66 | } |
| 67 | |
| 68 | static struct sys_timer imx6q_timer = { |
| 69 | .init = imx6q_timer_init, |
| 70 | }; |
| 71 | |
| 72 | static const char *imx6q_dt_compat[] __initdata = { |
| 73 | "fsl,imx6q-sabreauto", |
| 74 | NULL, |
| 75 | }; |
| 76 | |
| 77 | DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad (Device Tree)") |
| 78 | .map_io = imx6q_map_io, |
| 79 | .init_irq = imx6q_init_irq, |
| 80 | .handle_irq = imx6q_handle_irq, |
| 81 | .timer = &imx6q_timer, |
| 82 | .init_machine = imx6q_init_machine, |
| 83 | .dt_compat = imx6q_dt_compat, |
| 84 | MACHINE_END |