board/esd/dasa_sim/flash.c

   1 /*
   2  * (C) Copyright 2001
   3  * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <asm/ppc4xx.h>
  10 #include <asm/processor.h>
  11
  12 /*
  13  * include common flash code (for esd boards)
  14  */
  15 #include "../common/flash.c"
  16
  17 /*-----------------------------------------------------------------------
  18  * Functions
  19  */
  20 static ulong flash_get_size (vu_long *addr, flash_info_t *info);
  21 static void flash_get_offsets (ulong base, flash_info_t *info);
  22
  23
  24 /*-----------------------------------------------------------------------
  25  */
  26
  27 unsigned long flash_init (void)
  28 {
  29         unsigned long size_b0;
  30         int i;
  31
  32         /* Init: no FLASHes known */
  33         for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
  34                 flash_info[i].flash_id = FLASH_UNKNOWN;
  35         }
  36
  37         /* Static FLASH Bank configuration here - FIXME XXX */
  38
  39         size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
  40
  41         if (flash_info[0].flash_id == FLASH_UNKNOWN) {
  42                 printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
  43                         size_b0, size_b0<<20);
  44         }
  45
  46         /* Setup offsets */
  47         flash_get_offsets (-size_b0, &flash_info[0]);
  48
  49         /* Monitor protection ON by default */
  50         (void)flash_protect(FLAG_PROTECT_SET,
  51                             -monitor_flash_len,
  52                             0xffffffff,
  53                             &flash_info[0]);
  54
  55         flash_info[0].size = size_b0;
  56
  57         return (size_b0);
  58 }