arm: mmp: add initial support for PXA1908 SoC

Add initial support for Marvell PXA1908. The SoC has 4 Cortex-A53 cores,
a GC7000UL GPU and a variety of peripheral controllers.

Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/mach-mmp/mmu.c b/arch/arm/mach-mmp/mmu.c
new file mode 100644
index 0000000..ad2f1e3
--- /dev/null
+++ b/arch/arm/mach-mmp/mmu.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2024
+ * Duje Mihanović <duje.mihanovic@skole.hr>
+ */
+#include <asm/armv8/mmu.h>
+#include <linux/sizes.h>
+
+static struct mm_region pxa1908_mem_map[] = {
+	{
+		.virt = 0x0UL,
+		.phys = 0x0UL,
+		.size = 2UL * SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_INNER_SHARE
+	},
+	{
+		.virt = 0x80000000UL,
+		.phys = 0x80000000UL,
+		.size = 2UL * SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_INNER_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	},
+	{
+		0,
+	}
+};
+
+struct mm_region *mem_map = pxa1908_mem_map;