1 files changed, 95 insertions, 0 deletions
diff --git a/plat/marvell/armada/a8k/common/aarch64/plat_arch_config.c b/plat/marvell/armada/a8k/common/aarch64/plat_arch_config.c
new file mode 100644
index 0000000..d576514
--- /dev/null
+++ b/plat/marvell/armada/a8k/common/aarch64/plat_arch_config.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <arch_helpers.h>
+#include <common/debug.h>
+#include <drivers/marvell/cache_llc.h>
+#include <lib/mmio.h>
+#include <plat/common/platform.h>
+
+#define CCU_HTC_ASET			(MVEBU_CCU_BASE(MVEBU_AP0) + 0x264)
+#define MVEBU_IO_AFFINITY		(0xF00)
+#define MVEBU_SF_REG			(MVEBU_REGS_BASE + 0x40)
+#define MVEBU_SF_EN			BIT(8)
+#define MVEBU_DFX_REG(cluster_id)	(MVEBU_REGS_BASE + 0x6F82A0 + \
+					(cluster_id) * 0x4)
+#define MVEBU_DFX_CLK_EN_POS		0x3
+#define MVEBU_DFX_CL0_CLK_OFFS		16
+#define MVEBU_DFX_CL0_CLK_MASK		(0xF << MVEBU_DFX_CL0_CLK_OFFS)
+#define MVEBU_DFX_CL1_CLK_OFFS		8
+#define MVEBU_DFX_CL1_CLK_MASK		(0xF << MVEBU_DFX_CL1_CLK_OFFS)
+
+#ifdef MVEBU_SOC_AP807
+static void plat_enable_snoop_filter(void)
+{
+	int cpu_id = plat_my_core_pos();
+
+	/* Snoop filter needs to be enabled once per cluster */
+	if (cpu_id % 2)
+		return;
+
+	mmio_setbits_32(MVEBU_SF_REG, MVEBU_SF_EN);
+}
+#endif
+
+#ifndef MVEBU_SOC_AP807
+static void plat_config_dfx_clock(void)
+{
+	int cluster_id = plat_my_core_pos();
+	uint32_t val;
+
+	/* DFX clock needs to be configured once per cluster */
+	if ((cluster_id % PLAT_MAX_CPUS_PER_CLUSTER) != 0) {
+		return;
+	}
+
+	val = mmio_read_32(MVEBU_DFX_REG(cluster_id / PLAT_MAX_CPUS_PER_CLUSTER));
+	if (cluster_id == 0) {
+		val &= ~MVEBU_DFX_CL0_CLK_MASK;
+		val |= (MVEBU_DFX_CLK_EN_POS << MVEBU_DFX_CL0_CLK_OFFS);
+	} else {
+		val &= ~MVEBU_DFX_CL1_CLK_MASK;
+		val |= (MVEBU_DFX_CLK_EN_POS << MVEBU_DFX_CL1_CLK_OFFS);
+	}
+	mmio_write_32(MVEBU_DFX_REG(cluster_id / PLAT_MAX_CPUS_PER_CLUSTER), val);
+}
+#endif
+
+static 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 */
+	isb();
+}
+
+void marvell_psci_arch_init(int die_index)
+{
+#if LLC_ENABLE
+	/* check if LLC is in exclusive mode
+	 * as L2 is configured to UniqueClean eviction
+	 * (in a8k reset handler)
+	 */
+	if (llc_is_exclusive(0) == 0)
+		ERROR("LLC should be configured to exclusice mode\n");
+#endif
+
+	/* Enable Affinity */
+	plat_enable_affinity();
+
+#ifdef MVEBU_SOC_AP807
+	plat_enable_snoop_filter();
+#else
+	plat_config_dfx_clock();
+#endif
+}