1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/mach-versatile/v2m.c b/arch/arm/mach-versatile/v2m.c
new file mode 100644
index 000000000..79afdf2a9
--- /dev/null
+++ b/arch/arm/mach-versatile/v2m.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <asm/mach/arch.h>
+
+#include "vexpress.h"
+
+#define SYS_FLAGSSET		0x030
+#define SYS_FLAGSCLR		0x034
+
+void vexpress_flags_set(u32 data)
+{
+	static void __iomem *base;
+
+	if (!base) {
+		struct device_node *node = of_find_compatible_node(NULL, NULL,
+				"arm,vexpress-sysreg");
+
+		base = of_iomap(node, 0);
+	}
+
+	if (WARN_ON(!base))
+		return;
+
+	writel(~0, base + SYS_FLAGSCLR);
+	writel(data, base + SYS_FLAGSSET);
+}
+
+static const char * const v2m_dt_match[] __initconst = {
+	"arm,vexpress",
+	NULL,
+};
+
+DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express")
+	.dt_compat	= v2m_dt_match,
+	.l2c_aux_val	= 0x00400000,
+	.l2c_aux_mask	= 0xfe0fffff,
+	.smp		= smp_ops(vexpress_smp_dt_ops),
+	.smp_init	= smp_init_ops(vexpress_smp_init_ops),
+MACHINE_END