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         NULL,
  30 };
  31
  32 DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)")
  33         .dt_compat      = sunxi_board_dt_compat,
  34         .init_late      = sunxi_dt_cpufreq_init,
  35 MACHINE_END
  36
  37 static const char * const sun6i_board_dt_compat[] = {
  38         "allwinner,sun6i-a31",
  39         "allwinner,sun6i-a31s",
  40         NULL,
  41 };
  42
  43 extern void __init sun6i_reset_init(void);
  44 static void __init sun6i_timer_init(void)
  45 {
  46         of_clk_init(NULL);
  47         if (IS_ENABLED(CONFIG_RESET_CONTROLLER))
  48                 sun6i_reset_init();
  49         clocksource_of_init();
  50 }
  51
  52 DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
  53         .init_time      = sun6i_timer_init,
  54         .dt_compat      = sun6i_board_dt_compat,
  55         .init_late      = sunxi_dt_cpufreq_init,
  56 MACHINE_END
  57
  58 static const char * const sun7i_board_dt_compat[] = {
  59         "allwinner,sun7i-a20",
  60         NULL,
  61 };
  62
  63 DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family")
  64         .dt_compat      = sun7i_board_dt_compat,
  65         .init_late      = sunxi_dt_cpufreq_init,
  66 MACHINE_END
  67
  68 static const char * const sun8i_board_dt_compat[] = {
  69         "allwinner,sun8i-a23",
  70         "allwinner,sun8i-a33",
  71         "allwinner,sun8i-h3",
  72         NULL,
  73 };
  74
  75 DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i Family")
  76         .init_time      = sun6i_timer_init,
  77         .dt_compat      = sun8i_board_dt_compat,
  78         .init_late      = sunxi_dt_cpufreq_init,
  79 MACHINE_END
  80
  81 static const char * const sun9i_board_dt_compat[] = {
  82         "allwinner,sun9i-a80",
  83         NULL,
  84 };
  85
  86 DT_MACHINE_START(SUN9I_DT, "Allwinner sun9i Family")
  87         .dt_compat      = sun9i_board_dt_compat,
  88 MACHINE_END