From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 11:13:47 +0200
Subject: Adding upstream version 2.8.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 plat/socionext/synquacer/sq_ccn.c | 45 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 plat/socionext/synquacer/sq_ccn.c

(limited to 'plat/socionext/synquacer/sq_ccn.c')

diff --git a/plat/socionext/synquacer/sq_ccn.c b/plat/socionext/synquacer/sq_ccn.c
new file mode 100644
index 0000000..fa6ea87
--- /dev/null
+++ b/plat/socionext/synquacer/sq_ccn.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+
+#include <arch.h>
+#include <arch_helpers.h>
+#include <drivers/arm/ccn.h>
+
+static const unsigned char master_to_rn_id_map[] = {
+	PLAT_SQ_CLUSTER_TO_CCN_ID_MAP
+};
+
+static const ccn_desc_t sq_ccn_desc = {
+	.periphbase = PLAT_SQ_CCN_BASE,
+	.num_masters = ARRAY_SIZE(master_to_rn_id_map),
+	.master_to_rn_id_map = master_to_rn_id_map
+};
+
+/******************************************************************************
+ * Helper function to initialize SQ CCN driver.
+ *****************************************************************************/
+void plat_sq_interconnect_init(void)
+{
+	ccn_init(&sq_ccn_desc);
+}
+
+/******************************************************************************
+ * Helper function to place current master into coherency
+ *****************************************************************************/
+void plat_sq_interconnect_enter_coherency(void)
+{
+	ccn_enter_snoop_dvm_domain(1 << MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
+}
+
+/******************************************************************************
+ * Helper function to remove current master from coherency
+ *****************************************************************************/
+void plat_sq_interconnect_exit_coherency(void)
+{
+	ccn_exit_snoop_dvm_domain(1 << MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
+}
-- 
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