/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com) * * based on METAG mach/arch.h (which in turn was based on ARM)
*/
/** * struct machine_desc - Board specific callbacks, called from ARC common code * Provided by each ARC board using MACHINE_START()/MACHINE_END(), so * a multi-platform kernel builds with array of such descriptors. * We extend the early DT scan to also match the DT's "compatible" string * against the @dt_compat of all such descriptors, and one with highest * "DT score" is selected as global @machine_desc. * * @name: Board/SoC name * @dt_compat: Array of device tree 'compatible' strings * (XXX: although only 1st entry is looked at) * @init_early: Very early callback [called from setup_arch()] * @init_per_cpu: for each CPU as it is coming up (SMP as well as UP) * [(M):init_IRQ(), (o):start_kernel_secondary()] * @init_machine: arch initcall level callback (e.g. populate static * platform devices or parse Devicetree) * @init_late: Late initcall level callback *
*/ struct machine_desc { constchar *name; constchar **dt_compat; void (*init_early)(void); void (*init_per_cpu)(unsignedint); void (*init_machine)(void); void (*init_late)(void);
};
/* * Current machine - only accessible during boot.
*/ externconststruct machine_desc *machine_desc;
/* * Machine type table - also only accessible during boot
*/ externconststruct machine_desc __arch_info_begin[], __arch_info_end[];
/* * Set of macros to define architecture features. * This is built into a table by the linker.
*/ #define MACHINE_START(_type, _name) \ staticconststruct machine_desc __mach_desc_##_type \
__used __section(".arch.info.init") = { \
.name = _name,
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