arch/arm/mach-k3/arm64-mmu.c

   1 // SPDX-License-Identifier:     GPL-2.0+
   2 /*
   3  * K3: ARM64 MMU setup
   4  *
   5  * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
   6  *      Lokesh Vutla <lokeshvutla@ti.com>
   7  * (This file is derived from arch/arm/mach-zynqmp/cpu.c)
   8  *
   9  */
  10
  11 #include <common.h>
  12 #include <asm/system.h>
  13 #include <asm/armv8/mmu.h>
  14
  15 /* NR_DRAM_BANKS + 32bit IO + 64bit IO + terminator */
  16 #define NR_MMU_REGIONS  (CONFIG_NR_DRAM_BANKS + 3)
  17
  18 /* ToDo: Add 64bit IO */
  19 struct mm_region am654_mem_map[NR_MMU_REGIONS] = {
  20         {
  21                 .virt = 0x0UL,
  22                 .phys = 0x0UL,
  23                 .size = 0x80000000UL,
  24                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  25                          PTE_BLOCK_NON_SHARE |
  26                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
  27         }, {
  28                 .virt = 0x80000000UL,
  29                 .phys = 0x80000000UL,
  30                 .size = 0x80000000UL,
  31                 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
  32                          PTE_BLOCK_INNER_SHARE
  33         }, {
  34                 .virt = 0x880000000UL,
  35                 .phys = 0x880000000UL,
  36                 .size = 0x80000000UL,
  37                 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
  38                          PTE_BLOCK_INNER_SHARE
  39         }, {
  40                 /* List terminator */
  41                 0,
  42         }
  43 };
  44
  45 struct mm_region *mem_map = am654_mem_map;