plat/socionext/synquacer/sq_ccn.c

   1 /*
   2  * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
   3  *
   4  * SPDX-License-Identifier: BSD-3-Clause
   5  */
   6
   7 #include <platform_def.h>
   8
   9 #include <arch.h>
  10 #include <arch_helpers.h>
  11 #include <drivers/arm/ccn.h>
  12
  13 static const unsigned char master_to_rn_id_map[] = {
  14         PLAT_SQ_CLUSTER_TO_CCN_ID_MAP
  15 };
  16
  17 static const ccn_desc_t sq_ccn_desc = {
  18         .periphbase = PLAT_SQ_CCN_BASE,
  19         .num_masters = ARRAY_SIZE(master_to_rn_id_map),
  20         .master_to_rn_id_map = master_to_rn_id_map
  21 };
  22
  23 /******************************************************************************
  24  * Helper function to initialize SQ CCN driver.
  25  *****************************************************************************/
  26 void plat_sq_interconnect_init(void)
  27 {
  28         ccn_init(&sq_ccn_desc);
  29 }
  30
  31 /******************************************************************************
  32  * Helper function to place current master into coherency
  33  *****************************************************************************/
  34 void plat_sq_interconnect_enter_coherency(void)
  35 {
  36         ccn_enter_snoop_dvm_domain(1 << MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
  37 }
  38
  39 /******************************************************************************
  40  * Helper function to remove current master from coherency
  41  *****************************************************************************/
  42 void plat_sq_interconnect_exit_coherency(void)
  43 {
  44         ccn_exit_snoop_dvm_domain(1 << MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
  45 }