arch/arm/mach-sti/board-dt.c

   1 /*
   2  * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
   3  * Author(s): Srinivas Kandagatla <srinivas.kandagatla@st.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  */
   9
  10 #include <linux/irq.h>
  11 #include <linux/of_platform.h>
  12 #include <asm/hardware/cache-l2x0.h>
  13 #include <asm/mach/arch.h>
  14
  15 #include "smp.h"
  16
  17 void __init stih41x_l2x0_init(void)
  18 {
  19         u32 way_size = 0x4;
  20         u32 aux_ctrl;
  21         /* may be this can be encoded in macros like BIT*() */
  22         aux_ctrl = (0x1 << L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT) |
  23                 (0x1 << L2X0_AUX_CTRL_DATA_PREFETCH_SHIFT) |
  24                 (0x1 << L2X0_AUX_CTRL_INSTR_PREFETCH_SHIFT) |
  25                 (way_size << L2X0_AUX_CTRL_WAY_SIZE_SHIFT);
  26
  27         l2x0_of_init(aux_ctrl, L2X0_AUX_CTRL_MASK);
  28 }
  29
  30 static void __init stih41x_machine_init(void)
  31 {
  32         stih41x_l2x0_init();
  33         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  34 }
  35
  36 static const char *stih41x_dt_match[] __initdata = {
  37         "st,stih415",
  38         "st,stih416",
  39         NULL
  40 };
  41
  42 DT_MACHINE_START(STM, "STiH415/416 SoC with Flattened Device Tree")
  43         .init_machine   = stih41x_machine_init,
  44         .smp            = smp_ops(sti_smp_ops),
  45         .dt_compat      = stih41x_dt_match,
  46 MACHINE_END