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 85