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Diffstat (limited to 'plat/marvell/a8k/common/aarch64/plat_arch_config.c')
-rw-r--r--plat/marvell/a8k/common/aarch64/plat_arch_config.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/plat/marvell/a8k/common/aarch64/plat_arch_config.c b/plat/marvell/a8k/common/aarch64/plat_arch_config.c
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+++ b/plat/marvell/a8k/common/aarch64/plat_arch_config.c
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+/*
+ * ***************************************************************************
+ * Copyright (C) 2016 Marvell International Ltd.
+ * ***************************************************************************
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of Marvell nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ***************************************************************************
+ */
+
+#include <platform.h>
+#include <arch_helpers.h>
+#include <mmio.h>
+#include <debug.h>
+#include <cache_llc.h>
+
+
+#define CCU_HTC_ASET (MVEBU_CCU_BASE + 0x264)
+#define MVEBU_IO_AFFINITY (0xF00)
+
+
+void plat_enable_affinity(void)
+{
+ int cluster_id;
+ int affinity;
+
+ /* set CPU Affinity */
+ cluster_id = plat_my_core_pos() / PLAT_MARVELL_CLUSTER_CORE_COUNT;
+ affinity = (MVEBU_IO_AFFINITY | (1 << cluster_id));
+ mmio_write_32(CCU_HTC_ASET, affinity);
+
+ /* set barier */
+ __asm__ volatile("isb");
+}
+
+void psci_arch_init(void)
+{
+#if !LLC_DISABLE
+ /* check if LLC is in exclusive mode
+ * as L2 is configured to UniqueClean eviction
+ * (in a8k reset handler)
+ */
+ if (llc_is_exclusive() == 0)
+ ERROR("LLC should be configured to exclusice mode\n");
+#endif
+
+ /* Enable Affinity */
+ plat_enable_affinity();
+}