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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
   4  * Author(s): Srinivas Kandagatla <srinivas.kandagatla@st.com>
   5  */
   6
   7 #include <linux/irq.h>
   8 #include <linux/of_platform.h>
   9 #include <asm/hardware/cache-l2x0.h>
  10 #include <asm/mach/arch.h>
  11
  12 #include "smp.h"
  13
  14 static const char *const stih41x_dt_match[] __initconst = {
  15         "st,stih415",
  16         "st,stih416",
  17         "st,stih407",
  18         "st,stih410",
  19         "st,stih418",
  20         NULL
  21 };
  22
  23 static void sti_l2_write_sec(unsigned long val, unsigned reg)
  24 {
  25         /*
  26          * We can't write to secure registers as we are in non-secure
  27          * mode, until we have some SMI service available.
  28          */
  29 }
  30
  31 DT_MACHINE_START(STM, "STi SoC with Flattened Device Tree")
  32         .dt_compat      = stih41x_dt_match,
  33         .l2c_aux_val    = L2C_AUX_CTRL_SHARED_OVERRIDE |
  34                           L310_AUX_CTRL_DATA_PREFETCH |
  35                           L310_AUX_CTRL_INSTR_PREFETCH |
  36                           L2C_AUX_CTRL_WAY_SIZE(4),
  37         .l2c_aux_mask   = 0xc0000fff,
  38         .smp            = smp_ops(sti_smp_ops),
  39         .l2c_write_sec  = sti_l2_write_sec,
  40 MACHINE_END