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13eed9897a
It adds generic device tree based machine support for imx6q. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/*
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* Copyright 2011 Freescale Semiconductor, Inc.
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* Copyright 2011 Linaro Ltd.
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/irqdomain.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <linux/of_platform.h>
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#include <asm/hardware/cache-l2x0.h>
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#include <asm/hardware/gic.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <mach/common.h>
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#include <mach/hardware.h>
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static void __init imx6q_init_machine(void)
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{
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of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
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imx6q_pm_init();
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}
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static void __init imx6q_map_io(void)
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{
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imx_lluart_map_io();
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imx_scu_map_io();
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}
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static void __init imx6q_gpio_add_irq_domain(struct device_node *np,
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struct device_node *interrupt_parent)
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{
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static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS -
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32 * 7; /* imx6q gets 7 gpio ports */
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irq_domain_add_simple(np, gpio_irq_base);
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gpio_irq_base += 32;
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}
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static const struct of_device_id imx6q_irq_match[] __initconst = {
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{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
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{ .compatible = "fsl,imx6q-gpio", .data = imx6q_gpio_add_irq_domain, },
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{ /* sentinel */ }
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};
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static void __init imx6q_init_irq(void)
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{
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l2x0_of_init(0, ~0UL);
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imx_src_init();
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imx_gpc_init();
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of_irq_init(imx6q_irq_match);
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}
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static void __init imx6q_timer_init(void)
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{
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mx6q_clocks_init();
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}
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static struct sys_timer imx6q_timer = {
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.init = imx6q_timer_init,
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};
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static const char *imx6q_dt_compat[] __initdata = {
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"fsl,imx6q-sabreauto",
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NULL,
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};
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DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad (Device Tree)")
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.map_io = imx6q_map_io,
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.init_irq = imx6q_init_irq,
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.handle_irq = imx6q_handle_irq,
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.timer = &imx6q_timer,
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.init_machine = imx6q_init_machine,
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.dt_compat = imx6q_dt_compat,
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MACHINE_END
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