arch/powerpc/cpu/mpc8xxx/pamu_table.c

   1 /*
   2  * Copyright 2012-2016 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/fsl_pamu.h>
   9
  10 DECLARE_GLOBAL_DATA_PTR;
  11
  12 void construct_pamu_addr_table(struct pamu_addr_tbl *tbl, int *num_entries)
  13 {
  14         int i = 0;
  15         int j;
  16
  17         tbl->start_addr[i] =
  18                         (uint64_t)virt_to_phys((void *)CONFIG_SYS_SDRAM_BASE);
  19         tbl->size[i] = (phys_size_t)(min(gd->ram_size, CONFIG_MAX_MEM_MAPPED));
  20         tbl->end_addr[i] = tbl->start_addr[i] +  tbl->size[i] - 1;
  21
  22         i++;
  23 #ifdef CONFIG_SYS_FLASH_BASE_PHYS
  24         tbl->start_addr[i] =
  25                 (uint64_t)virt_to_phys((void *)CONFIG_SYS_FLASH_BASE_PHYS);
  26         tbl->size[i] = 256 * 1024 * 1024; /* 256MB flash */
  27         tbl->end_addr[i] = tbl->start_addr[i] +  tbl->size[i] - 1;
  28
  29         i++;
  30 #endif
  31         debug("PAMU address\t\t\tsize\n");
  32         for (j = 0; j < i ; j++)
  33                 debug("%llx \t\t\t%llx\n",  tbl->start_addr[j],  tbl->size[j]);
  34
  35         *num_entries = i;
  36 }
  37
  38 int sec_config_pamu_table(uint32_t liodn_ns, uint32_t liodn_s)
  39 {
  40         struct pamu_addr_tbl tbl;
  41         int num_entries = 0;
  42         int ret = 0;
  43
  44         construct_pamu_addr_table(&tbl, &num_entries);
  45
  46         ret = config_pamu(&tbl, num_entries, liodn_ns);
  47         if (ret)
  48                 return ret;
  49
  50         ret = config_pamu(&tbl, num_entries, liodn_s);
  51         if (ret)
  52                 return ret;
  53
  54         return ret;
  55 }