arch/arm/mach-rockchip/rk3399/rk3399.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2016 Rockchip Electronics Co., Ltd
   4  */
   5
   6 #include <common.h>
   7 #include <asm/armv8/mmu.h>
   8 #include <asm/io.h>
   9 #include <asm/arch/hardware.h>
  10
  11 DECLARE_GLOBAL_DATA_PTR;
  12
  13 #define GRF_EMMCCORE_CON11 0xff77f02c
  14
  15 static struct mm_region rk3399_mem_map[] = {
  16         {
  17                 .virt = 0x0UL,
  18                 .phys = 0x0UL,
  19                 .size = 0xf8000000UL,
  20                 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
  21                          PTE_BLOCK_INNER_SHARE
  22         }, {
  23                 .virt = 0xf8000000UL,
  24                 .phys = 0xf8000000UL,
  25                 .size = 0x08000000UL,
  26                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  27                          PTE_BLOCK_NON_SHARE |
  28                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
  29         }, {
  30                 /* List terminator */
  31                 0,
  32         }
  33 };
  34
  35 struct mm_region *mem_map = rk3399_mem_map;
  36
  37 int dram_init_banksize(void)
  38 {
  39         size_t max_size = min((unsigned long)gd->ram_size, gd->ram_top);
  40
  41         /* Reserve 0x200000 for ATF bl31 */
  42         gd->bd->bi_dram[0].start = 0x200000;
  43         gd->bd->bi_dram[0].size = max_size - gd->bd->bi_dram[0].start;
  44
  45         return 0;
  46 }
  47
  48 int arch_cpu_init(void)
  49 {
  50         /* We do some SoC one time setting here. */
  51
  52         /* Emmc clock generator: disable the clock multipilier */
  53         rk_clrreg(GRF_EMMCCORE_CON11, 0x0ff);
  54
  55         return 0;
  56 }