LXR uboot/common/cmd

   1/*
   2 * cmd_cplbinfo.c - dump the instruction/data cplb tables
   3 *
   4 * Copyright (c) 2007-2008 Analog Devices Inc.
   5 *
   6 * Licensed under the GPL-2 or later.
   7 */
   8
   9#include <common.h>
  10#include <command.h>
  11#include <asm/blackfin.h>
  12#include <asm/cplb.h>
  13#include <asm/mach-common/bits/mpu.h>
  14
  15/*
  16 * Translate the PAGE_SIZE bits into a human string
  17 */
  18static const char *cplb_page_size(uint32_t data)
  19{
  20        static const char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" };
  21        return page_size_string_table[(data & PAGE_SIZE_MASK) >> PAGE_SIZE_SHIFT];
  22}
  23
  24/*
  25 * show a hardware cplb table
  26 */
  27static void show_cplb_table(uint32_t *addr, uint32_t *data)
  28{
  29        int i;
  30        printf("      Address     Data   Size  Valid  Locked\n");
  31        for (i = 1; i <= 16; ++i) {
  32                printf(" %2i 0x%p  0x%05X   %s     %c      %c\n",
  33                        i, (void *)*addr, *data,
  34                        cplb_page_size(*data),
  35                        (*data & CPLB_VALID ? 'Y' : 'N'),
  36                        (*data & CPLB_LOCK ? 'Y' : 'N'));
  37                ++addr;
  38                ++data;
  39        }
  40}
  41
  42/*
  43 * display current instruction and data cplb tables
  44 */
  45int do_cplbinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  46{
  47        printf("%s CPLB table [%08x]:\n", "Instruction", *(uint32_t *)DMEM_CONTROL);
  48        show_cplb_table((uint32_t *)ICPLB_ADDR0, (uint32_t *)ICPLB_DATA0);
  49
  50        printf("%s CPLB table [%08x]:\n", "Data", *(uint32_t *)IMEM_CONTROL);
  51        show_cplb_table((uint32_t *)DCPLB_ADDR0, (uint32_t *)DCPLB_DATA0);
  52
  53        return 0;
  54}
  55
  56U_BOOT_CMD(
  57        cplbinfo, 1, 0, do_cplbinfo,
  58        "display current CPLB tables",
  59        ""
  60);
  61