plat/bcm/include/bcm963xx/bcm_mem_reserve.h

   1 /*
   2 <:copyright-BRCM:2019:DUAL/GPL:standard
   3
   4    Copyright (c) 2019 Broadcom
   5    All Rights Reserved
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License, version 2, as published by
   9 the Free Software Foundation (the "GPL").
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16
  17 A copy of the GPL is available at http://www.broadcom.com/licenses/GPLv2.php, or by
  18 writing to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.
  20
  21 :>
  22
  23 */
  24 #ifndef _BCM_MEM_RESERVE_H
  25 #define _BCM_MEM_RESERVE_H
  26
  27
  28 /* Push DTB higher as it will be removed by Linux alter on */
  29 /* Address range         Size(KB)
  30    0x00000000:0x00004000   16  to boot secondary ARM CPU
  31    0x00004000:0x000C0000  752  to keep ATF firmware
  32    0x000C0000:0x000F0000  192  to keep PMC firmware
  33    0x000F0000:0x00100000   64  to keep PMC firmware log
  34
  35    Any change in the following defines must be reflected in Linux device tree (/memreserve)
  36 */
  37 #if defined(CONFIG_ARM64)
  38 #define CFG_BOOT_AREA_ADDR      0
  39 #else
  40 #define CFG_BOOT_AREA_ADDR      0x1000
  41 #define ARM_ATAG_LOC            CFG_DTB_ADDRESS
  42 #endif
  43 #define CFG_BOOT_AREA_SIZE      (0x4000 - CFG_BOOT_AREA_ADDR)
  44
  45 /* ATF reserved memory */
  46 #define CFG_ATF_AREA_ADDR       (CFG_BOOT_AREA_ADDR + CFG_BOOT_AREA_SIZE)
  47 #define CFG_ATF_AREA_SIZE       0xBC000                           // Total ATF reserved memory size 752KB
  48
  49 /* PMC reserved memory */
  50 #define PMC_RESERVED_MEM_START  (CFG_ATF_AREA_ADDR + CFG_ATF_AREA_SIZE)
  51 #define PMC_RESERVED_MEM_SIZE   0x40000                           // Total PMC reserved memory size 256KB
  52
  53 #ifdef CONFIG_BCM963148
  54 /* Reuse unused PMC reserved memory for DSL */
  55 #define DSL_RESERVED_MEM_START  PMC_RESERVED_MEM_START
  56 #define DSL_RESERVED_MEM_SIZE   PMC_RESERVED_MEM_SIZE
  57 #endif
  58
  59 #define CFG_BOOT_PMC_LOG_SIZE   0x10000                           // Leave 64K reserved memory for PMC log
  60 #define CFG_BOOT_PMC_ADDR       (PMC_RESERVED_MEM_START)
  61 #define CFG_BOOT_PMC_SIZE       (PMC_RESERVED_MEM_SIZE  - CFG_BOOT_PMC_LOG_SIZE) // Memory reserved for PMC firmware
  62 #define CFG_BOOT_PMC_LOG_ADDR   (PMC_RESERVED_MEM_START + CFG_BOOT_PMC_SIZE)
  63
  64
  65 /* **NOTE** any change in CFG_BOOT_PMC_ADDR must be reflected in PMC makefiles */
  66
  67 /* OPTEE reserved memory */
  68 #define CFG_OPTEE_AREA_ADDR     (PMC_RESERVED_MEM_START + PMC_RESERVED_MEM_SIZE)
  69 #define CFG_OPTEE_CORE_SIZE     0x400000                          // Total OPTEE reserved memory size 4096KB
  70 #define CFG_OPTEE_SHRM_SIZE     0x100000                          // Shared memory 1024KB between OPTEE and Linux
  71 #define CFG_OPTEE_SHRM_ADDR     (CFG_OPTEE_AREA_ADDR + CFG_OPTEE_CORE_SIZE)
  72 #define CFG_OPTEE_AREA_SIZE     (CFG_OPTEE_CORE_SIZE + CFG_OPTEE_SHRM_SIZE)
  73
  74 #ifdef CONFIG_OPTEE
  75 #define CFG_MAX_RESV_AREA       (CFG_OPTEE_AREA_ADDR + CFG_OPTEE_AREA_SIZE)
  76 #else
  77 #define CFG_MAX_RESV_AREA       (PMC_RESERVED_MEM_START + PMC_RESERVED_MEM_SIZE)
  78 #endif
  79
  80 #if ( CFG_MAX_RESV_AREA > 0x600000 )
  81 #error "Reserved memory exceeded the allowed (6MB) limit"
  82 #endif
  83
  84
  85 #if ( CFG_MAX_RESV_AREA != 0x100000 ) && ( CFG_MAX_RESV_AREA != 0x600000 )
  86 #error "Time to update kernel/linux-4.x/arch/armxx/Makefile"
  87 #endif
  88
  89 #if defined(CONFIG_ARM64)
  90 #define LINUX_START_ADDR        CFG_MAX_RESV_AREA
  91 #else
  92 /* For 32 bit ARM, Linux needs extra 32K head room for MMU table */
  93 #define LINUX_START_ADDR        (CFG_MAX_RESV_AREA + 0x8000)
  94 #endif
  95
  96 #endif /* _BCM_MEM_RESERVE_H */