cmd_cplbinfo.c
1.44 KB
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/*
* cmd_cplbinfo.c - dump the instruction/data cplb tables
*
* Copyright (c) 2007-2008 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <common.h>
#include <command.h>
#include <asm/blackfin.h>
#include <asm/cplb.h>
#include <asm/mach-common/bits/mpu.h>
/*
* Translate the PAGE_SIZE bits into a human string
*/
static const char *cplb_page_size(uint32_t data)
{
static const char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" };
return page_size_string_table[(data & PAGE_SIZE_MASK) >> PAGE_SIZE_SHIFT];
}
/*
* show a hardware cplb table
*/
static void show_cplb_table(uint32_t *addr, uint32_t *data)
{
int i;
printf(" Address Data Size Valid Locked\n");
for (i = 1; i <= 16; ++i) {
printf(" %2i 0x%p 0x%05X %s %c %c\n",
i, (void *)*addr, *data,
cplb_page_size(*data),
(*data & CPLB_VALID ? 'Y' : 'N'),
(*data & CPLB_LOCK ? 'Y' : 'N'));
++addr;
++data;
}
}
/*
* display current instruction and data cplb tables
*/
int do_cplbinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
printf("%s CPLB table [%08x]:\n", "Instruction", *(uint32_t *)DMEM_CONTROL);
show_cplb_table((uint32_t *)ICPLB_ADDR0, (uint32_t *)ICPLB_DATA0);
printf("%s CPLB table [%08x]:\n", "Data", *(uint32_t *)IMEM_CONTROL);
show_cplb_table((uint32_t *)DCPLB_ADDR0, (uint32_t *)DCPLB_DATA0);
return 0;
}
U_BOOT_CMD(
cplbinfo, 1, 0, do_cplbinfo,
"display current CPLB tables",
""
);