arm/imx6q: add device tree machine support
It adds generic device tree based machine support for imx6q. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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@ -70,4 +70,4 @@ AFLAGS_head-v7.o :=-Wa,-march=armv7-a
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obj-$(CONFIG_SMP) += platsmp.o
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obj-$(CONFIG_SMP) += platsmp.o
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obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
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obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
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obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o
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obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o
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obj-$(CONFIG_SOC_IMX6Q) += clock-imx6q.o
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obj-$(CONFIG_SOC_IMX6Q) += clock-imx6q.o mach-imx6q.o
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84
arch/arm/mach-imx/mach-imx6q.c
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84
arch/arm/mach-imx/mach-imx6q.c
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@ -0,0 +1,84 @@
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/*
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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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@ -822,7 +822,7 @@ config CACHE_L2X0
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REALVIEW_EB_A9MP || SOC_IMX35 || SOC_IMX31 || MACH_REALVIEW_PBX || \
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REALVIEW_EB_A9MP || SOC_IMX35 || SOC_IMX31 || MACH_REALVIEW_PBX || \
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ARCH_NOMADIK || ARCH_OMAP4 || ARCH_EXYNOS4 || ARCH_TEGRA || \
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ARCH_NOMADIK || ARCH_OMAP4 || ARCH_EXYNOS4 || ARCH_TEGRA || \
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ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_SHMOBILE || \
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ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_SHMOBILE || \
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ARCH_PRIMA2 || ARCH_ZYNQ || ARCH_CNS3XXX
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ARCH_PRIMA2 || ARCH_ZYNQ || ARCH_CNS3XXX || ARCH_MX6
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default y
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default y
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select OUTER_CACHE
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select OUTER_CACHE
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select OUTER_CACHE_SYNC
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select OUTER_CACHE_SYNC
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@ -64,6 +64,7 @@ extern int mx51_clocks_init(unsigned long ckil, unsigned long osc,
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unsigned long ckih1, unsigned long ckih2);
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unsigned long ckih1, unsigned long ckih2);
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extern int mx53_clocks_init(unsigned long ckil, unsigned long osc,
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extern int mx53_clocks_init(unsigned long ckil, unsigned long osc,
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unsigned long ckih1, unsigned long ckih2);
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unsigned long ckih1, unsigned long ckih2);
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extern int mx6q_clocks_init(void);
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extern struct platform_device *mxc_register_gpio(char *name, int id,
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extern struct platform_device *mxc_register_gpio(char *name, int id,
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resource_size_t iobase, resource_size_t iosize, int irq, int irq_high);
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resource_size_t iobase, resource_size_t iosize, int irq, int irq_high);
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extern void mxc_set_cpu_type(unsigned int type);
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extern void mxc_set_cpu_type(unsigned int type);
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@ -101,7 +102,19 @@ void gic_handle_irq(struct pt_regs *);
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extern void imx_enable_cpu(int cpu, bool enable);
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extern void imx_enable_cpu(int cpu, bool enable);
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extern void imx_set_cpu_jump(int cpu, void *jump_addr);
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extern void imx_set_cpu_jump(int cpu, void *jump_addr);
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#ifdef CONFIG_DEBUG_LL
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extern void imx_lluart_map_io(void);
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#else
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static inline void imx_lluart_map_io(void) {}
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#endif
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#ifdef CONFIG_SMP
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#ifdef CONFIG_SMP
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extern void v7_secondary_startup(void);
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extern void v7_secondary_startup(void);
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extern void imx_scu_map_io(void);
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#else
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static inline void imx_scu_map_io(void) {}
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#endif
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#endif
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extern void imx_enable_cpu(int cpu, bool enable);
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extern void imx_set_cpu_jump(int cpu, void *jump_addr);
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extern void imx_src_init(void);
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extern void imx_gpc_init(void);
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#endif
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#endif
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