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a7a2b3118b
This adds the necessary smp-operations and startup code to use additional cores on Rockchip SoCs. We currently hog the power management unit in the smp code, as it is necessary to control the power to the cpu core and nothing else is currently using it, so a generic implementation can be done later. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Ulrich Prinz <ulrich.prinz@googlemail.com>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
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* Device Tree support for Rockchip SoCs
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*
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* Copyright (c) 2013 MundoReader S.L.
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* Author: Heiko Stuebner <heiko@sntech.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/of_platform.h>
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#include <linux/irqchip.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/hardware/cache-l2x0.h>
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#include "core.h"
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static void __init rockchip_dt_init(void)
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{
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l2x0_of_init(0, ~0UL);
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of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
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}
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static const char * const rockchip_board_dt_compat[] = {
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"rockchip,rk2928",
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"rockchip,rk3066a",
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"rockchip,rk3066b",
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"rockchip,rk3188",
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NULL,
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};
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DT_MACHINE_START(ROCKCHIP_DT, "Rockchip Cortex-A9 (Device Tree)")
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.smp = smp_ops(rockchip_smp_ops),
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.init_machine = rockchip_dt_init,
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.dt_compat = rockchip_board_dt_compat,
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MACHINE_END
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