qemu/roms/u-boot/board/esd/tasreg/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 unsigned long flash_init (void)
  27 {
  28         unsigned long size_b0;
  29         int i;
  30
  31         /* Init: no FLASHes known */
  32         for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
  33                 flash_info[i].flash_id = FLASH_UNKNOWN;
  34         }
  35
  36         /* Static FLASH Bank configuration here - FIXME XXX */
  37
  38         size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE, &flash_info[0]);
  39
  40         if (flash_info[0].flash_id == FLASH_UNKNOWN) {
  41                 printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
  42                         size_b0, size_b0<<20);
  43         }
  44
  45         /* Setup offsets */
  46         flash_get_offsets (-size_b0, &flash_info[0]);
  47
  48         /* test-only: todo: Re-do sizing to get full correct info */
  49
  50         /* Monitor protection ON by default */
  51         (void)flash_protect(FLAG_PROTECT_SET,
  52                             CONFIG_SYS_FLASH_BASE,
  53                             CONFIG_SYS_FLASH_BASE+CONFIG_SYS_MONITOR_LEN-1,
  54                             &flash_info[0]);
  55
  56         flash_info[0].size = size_b0;
  57
  58         return (size_b0);
  59 }