From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- arch/metag/include/asm/mach/arch.h | 86 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 arch/metag/include/asm/mach/arch.h (limited to 'arch/metag/include/asm/mach/arch.h') diff --git a/arch/metag/include/asm/mach/arch.h b/arch/metag/include/asm/mach/arch.h new file mode 100644 index 000000000..433f94624 --- /dev/null +++ b/arch/metag/include/asm/mach/arch.h @@ -0,0 +1,86 @@ +/* + * arch/metag/include/asm/mach/arch.h + * + * Copyright (C) 2012 Imagination Technologies Ltd. + * + * based on the ARM version: + * Copyright (C) 2000 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _METAG_MACH_ARCH_H_ +#define _METAG_MACH_ARCH_H_ + +#include + +#include + +/** + * struct machine_desc - Describes a board controlled by a Meta. + * @name: Board/SoC name. + * @dt_compat: Array of device tree 'compatible' strings. + * @clocks: Clock callbacks. + * + * @nr_irqs: Maximum number of IRQs. + * If 0, defaults to NR_IRQS in asm-generic/irq.h. + * + * @init_early: Early init callback. + * @init_irq: IRQ init callback for setting up IRQ controllers. + * @init_machine: Arch init callback for setting up devices. + * @init_late: Late init callback. + * + * This structure is provided by each board which can be controlled by a Meta. + * It is chosen by matching the compatible strings in the device tree provided + * by the bootloader with the strings in @dt_compat, and sets up any aspects of + * the machine that aren't configured with device tree (yet). + */ +struct machine_desc { + const char *name; + const char **dt_compat; + struct meta_clock_desc *clocks; + + unsigned int nr_irqs; + + void (*init_early)(void); + void (*init_irq)(void); + void (*init_machine)(void); + void (*init_late)(void); +}; + +/* + * Current machine - only accessible during boot. + */ +extern const struct machine_desc *machine_desc; + +/* + * Machine type table - also only accessible during boot + */ +extern struct machine_desc __arch_info_begin[], __arch_info_end[]; +#define for_each_machine_desc(p) \ + for (p = __arch_info_begin; p < __arch_info_end; p++) + +static inline struct machine_desc *default_machine_desc(void) +{ + /* the default machine is the last one linked in */ + if (__arch_info_end - 1 < __arch_info_begin) + return NULL; + return __arch_info_end - 1; +} + +/* + * Set of macros to define architecture features. This is built into + * a table by the linker. + */ +#define MACHINE_START(_type, _name) \ +static const struct machine_desc __mach_desc_##_type \ +__used \ +__attribute__((__section__(".arch.info.init"))) = { \ + .name = _name, + +#define MACHINE_END \ +}; + +#endif /* _METAG_MACH_ARCH_H_ */ -- cgit v1.2.3-54-g00ecf