u-boot/arch/arm/mach-versal-net/cpu.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2021 - 2022, Xilinx, Inc.
 * Copyright (C) 2022, Advanced Micro Devices, Inc.
 *
 * Michal Simek <michal.simek@amd.com>
 */

#include <common.h>
#include <init.h>
#include <asm/armv8/mmu.h>
#include <asm/cache.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sys_proto.h>
#include <asm/cache.h>

DECLARE_GLOBAL_DATA_PTR;

#define VERSAL_NET_MEM_MAP_USED	5

#define DRAM_BANKS CONFIG_NR_DRAM_BANKS

/* +1 is end of list which needs to be empty */
#define VERSAL_NET_MEM_MAP_MAX (VERSAL_NET_MEM_MAP_USED + DRAM_BANKS + 1)

static struct mm_region versal_mem_map[VERSAL_NET_MEM_MAP_MAX] = {
	{
		.virt = 0x80000000UL,
		.phys = 0x80000000UL,
		.size = 0x70000000UL,
		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
			 PTE_BLOCK_NON_SHARE |
			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
	}, {
		.virt = 0xf0000000UL,
		.phys = 0xf0000000UL,
		.size = 0x0fe00000UL,
		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
			 PTE_BLOCK_NON_SHARE |
			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
	}, {
		.virt = 0x400000000UL,
		.phys = 0x400000000UL,
		.size = 0x200000000UL,
		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
			 PTE_BLOCK_NON_SHARE |
			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
	}, {
		.virt = 0x600000000UL,
		.phys = 0x600000000UL,
		.size = 0x800000000UL,
		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
			 PTE_BLOCK_INNER_SHARE
	}, {
		.virt = 0xe00000000UL,
		.phys = 0xe00000000UL,
		.size = 0xf200000000UL,
		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
			 PTE_BLOCK_NON_SHARE |
			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
	}
};

void mem_map_fill(void)
{
	int banks = VERSAL_NET_MEM_MAP_USED;

	for (int i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
		/* Zero size means no more DDR that's this is end */
		if (!gd->bd->bi_dram[i].size)
			break;

		versal_mem_map[banks].virt = gd->bd->bi_dram[i].start;
		versal_mem_map[banks].phys = gd->bd->bi_dram[i].start;
		versal_mem_map[banks].size = gd->bd->bi_dram[i].size;
		versal_mem_map[banks].attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
					      PTE_BLOCK_INNER_SHARE;
		banks = banks + 1;
	}
}

struct mm_region *mem_map = versal_mem_map;

u64 get_page_table_size(void)
{
	return 0x14000;
}