46ebbfcb9f
Add the initialization of CNTVOFF for sun8i-a83t. For boot CPU, create a new machine that handles this function's call in an "init_early" callback. We need to initialize CNTVOFF before the arch timer's initialization otherwise, it will not be taken into account and fails to boot correctly. Because of that, this function can't be called in SMP's early_initcall function which is called after timer's init. For secondary CPUs, add this function into secondary_startup assembly entry. Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
/*
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* Device Tree support for Allwinner A1X SoCs
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*
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* Copyright (C) 2012 Maxime Ripard
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*
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* Maxime Ripard <maxime.ripard@free-electrons.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/clk-provider.h>
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#include <linux/clocksource.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <asm/mach/arch.h>
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#include <asm/secure_cntvoff.h>
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static const char * const sunxi_board_dt_compat[] = {
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"allwinner,sun4i-a10",
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"allwinner,sun5i-a10s",
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"allwinner,sun5i-a13",
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"allwinner,sun5i-r8",
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"nextthing,gr8",
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NULL,
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};
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DT_MACHINE_START(SUNXI_DT, "Allwinner sun4i/sun5i Families")
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.dt_compat = sunxi_board_dt_compat,
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MACHINE_END
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static const char * const sun6i_board_dt_compat[] = {
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"allwinner,sun6i-a31",
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"allwinner,sun6i-a31s",
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NULL,
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};
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extern void __init sun6i_reset_init(void);
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static void __init sun6i_timer_init(void)
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{
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of_clk_init(NULL);
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if (IS_ENABLED(CONFIG_RESET_CONTROLLER))
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sun6i_reset_init();
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timer_probe();
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}
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DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
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.init_time = sun6i_timer_init,
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.dt_compat = sun6i_board_dt_compat,
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MACHINE_END
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static const char * const sun7i_board_dt_compat[] = {
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"allwinner,sun7i-a20",
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NULL,
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};
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DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family")
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.dt_compat = sun7i_board_dt_compat,
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MACHINE_END
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static const char * const sun8i_board_dt_compat[] = {
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"allwinner,sun8i-a23",
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"allwinner,sun8i-a33",
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"allwinner,sun8i-h2-plus",
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"allwinner,sun8i-h3",
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"allwinner,sun8i-r40",
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"allwinner,sun8i-v3s",
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NULL,
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};
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DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i Family")
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.init_time = sun6i_timer_init,
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.dt_compat = sun8i_board_dt_compat,
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MACHINE_END
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static void __init sun8i_a83t_cntvoff_init(void)
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{
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#ifdef CONFIG_SMP
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secure_cntvoff_init();
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#endif
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}
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static const char * const sun8i_a83t_cntvoff_board_dt_compat[] = {
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"allwinner,sun8i-a83t",
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NULL,
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};
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DT_MACHINE_START(SUN8I_A83T_CNTVOFF_DT, "Allwinner A83t board")
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.init_early = sun8i_a83t_cntvoff_init,
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.init_time = sun6i_timer_init,
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.dt_compat = sun8i_a83t_cntvoff_board_dt_compat,
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MACHINE_END
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static const char * const sun9i_board_dt_compat[] = {
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"allwinner,sun9i-a80",
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NULL,
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};
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DT_MACHINE_START(SUN9I_DT, "Allwinner sun9i Family")
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.dt_compat = sun9i_board_dt_compat,
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MACHINE_END
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