1 files changed, 97 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/s32v234/cpu.c b/arch/arm/cpu/armv8/s32v234/cpu.c
new file mode 100644
index 0000000000..dac12a2552
--- /dev/null
+++ b/arch/arm/cpu/armv8/s32v234/cpu.c
@@ -0,0 +1,97 @@
+/*
+ * (C) Copyright 2014-2016, Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/armv8/mmu.h>
+#include <asm/io.h>
+#include <asm/arch/mc_me_regs.h>
+#include "cpu.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u32 cpu_mask(void)
+{
+	return readl(MC_ME_CS);
+}
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+
+#define S32V234_IRAM_BASE        0x3e800000UL
+#define S32V234_IRAM_SIZE        0x800000UL
+#define S32V234_DRAM_BASE1       0x80000000UL
+#define S32V234_DRAM_SIZE1       0x40000000UL
+#define S32V234_DRAM_BASE2       0xC0000000UL
+#define S32V234_DRAM_SIZE2       0x20000000UL
+#define S32V234_PERIPH_BASE      0x40000000UL
+#define S32V234_PERIPH_SIZE      0x40000000UL
+
+static struct mm_region s32v234_mem_map[] = {
+	{
+		.base = S32V234_IRAM_BASE,
+		.size = S32V234_IRAM_SIZE,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_OUTER_SHARE
+	}, {
+		.base = S32V234_DRAM_BASE1,
+		.size = S32V234_DRAM_SIZE1,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_OUTER_SHARE
+	}, {
+		.base = S32V234_PERIPH_BASE,
+		.size = S32V234_PERIPH_SIZE,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE
+			 /* TODO: Do we need these? */
+			 /* | PTE_BLOCK_PXN | PTE_BLOCK_UXN */
+	}, {
+		.base = S32V234_DRAM_BASE2,
+		.size = S32V234_DRAM_SIZE2,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) |
+			 PTE_BLOCK_OUTER_SHARE
+	}, {
+		/* List terminator */
+		0,
+	}
+};
+
+struct mm_region *mem_map = s32v234_mem_map;
+
+#endif
+
+/*
+ * Return the number of cores on this SOC.
+ */
+int cpu_numcores(void)
+{
+	int numcores;
+	u32 mask;
+
+	mask = cpu_mask();
+	numcores = hweight32(cpu_mask());
+
+	/* Verify if M4 is deactivated */
+	if (mask & 0x1)
+		numcores--;
+
+	return numcores;
+}
+
+#if defined(CONFIG_ARCH_EARLY_INIT_R)
+int arch_early_init_r(void)
+{
+	int rv;
+	asm volatile ("dsb sy");
+	rv = fsl_s32v234_wake_seconday_cores();
+
+	if (rv)
+		printf("Did not wake secondary cores\n");
+
+	asm volatile ("sev");
+	return 0;
+}
+#endif /* CONFIG_ARCH_EARLY_INIT_R */