arch/arm/mach-sunxi/sunxi.c

   1 /*
   2  * Device Tree support for Allwinner A1X SoCs
   3  *
   4  * Copyright (C) 2012 Maxime Ripard
   5  *
   6  * Maxime Ripard <maxime.ripard@free-electrons.com>
   7  *
   8  * This file is licensed under the terms of the GNU General Public
   9  * License version 2.  This program is licensed "as is" without any
  10  * warranty of any kind, whether express or implied.
  11  */
  12
  13 #include <linux/clk-provider.h>
  14 #include <linux/clocksource.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17
  18 #include <asm/mach/arch.h>
  19
  20 static void __init sunxi_dt_cpufreq_init(void)
  21 {
  22         platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
  23 }
  24
  25 static const char * const sunxi_board_dt_compat[] = {
  26         "allwinner,sun4i-a10",
  27         "allwinner,sun5i-a10s",
  28         "allwinner,sun5i-a13",
  29         "allwinner,sun5i-r8",
  30         NULL,
  31 };
  32
  33 DT_MACHINE_START(SUNXI_DT, "Allwinner sun4i/sun5i Families")
  34         .dt_compat      = sunxi_board_dt_compat,
  35         .init_late      = sunxi_dt_cpufreq_init,
  36 MACHINE_END
  37
  38 static const char * const sun6i_board_dt_compat[] = {
  39         "allwinner,sun6i-a31",
  40         "allwinner,sun6i-a31s",
  41         NULL,
  42 };
  43
  44 extern void __init sun6i_reset_init(void);
  45 static void __init sun6i_timer_init(void)
  46 {
  47         of_clk_init(NULL);
  48         if (IS_ENABLED(CONFIG_RESET_CONTROLLER))
  49                 sun6i_reset_init();
  50         clocksource_probe();
  51 }
  52
  53 DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
  54         .init_time      = sun6i_timer_init,
  55         .dt_compat      = sun6i_board_dt_compat,
  56         .init_late      = sunxi_dt_cpufreq_init,
  57 MACHINE_END
  58
  59 static const char * const sun7i_board_dt_compat[] = {
  60         "allwinner,sun7i-a20",
  61         NULL,
  62 };
  63
  64 DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family")
  65         .dt_compat      = sun7i_board_dt_compat,
  66         .init_late      = sunxi_dt_cpufreq_init,
  67 MACHINE_END
  68
  69 static const char * const sun8i_board_dt_compat[] = {
  70         "allwinner,sun8i-a23",
  71         "allwinner,sun8i-a33",
  72         "allwinner,sun8i-h3",
  73         NULL,
  74 };
  75
  76 DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i Family")
  77         .init_time      = sun6i_timer_init,
  78         .dt_compat      = sun8i_board_dt_compat,
  79         .init_late      = sunxi_dt_cpufreq_init,
  80 MACHINE_END
  81
  82 static const char * const sun9i_board_dt_compat[] = {
  83         "allwinner,sun9i-a80",
  84         NULL,
  85 };
  86
  87 DT_MACHINE_START(SUN9I_DT, "Allwinner sun9i Family")
  88         .dt_compat      = sun9i_board_dt_compat,
  89 MACHINE_END