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Blackfin: new cplbinfo command for viewing cplb tables

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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger
2008-02-19 00:35:17 -05:00
parent aadb72503c
commit cf675d3b2b
2 changed files with 60 additions and 0 deletions
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1
common/Makefile
View File

@@ -41,6 +41,7 @@ COBJS-$(CONFIG_CMD_BOOTLDR) += cmd_bootldr.o
COBJS-y += cmd_bootm.o COBJS-y += cmd_bootm.o
COBJS-$(CONFIG_CMD_CACHE) += cmd_cache.o COBJS-$(CONFIG_CMD_CACHE) += cmd_cache.o
COBJS-$(CONFIG_CMD_CONSOLE) += cmd_console.o COBJS-$(CONFIG_CMD_CONSOLE) += cmd_console.o
COBJS-$(CONFIG_CMD_CPLBINFO) += cmd_cplbinfo.o
COBJS-$(CONFIG_CMD_DATE) += cmd_date.o COBJS-$(CONFIG_CMD_DATE) += cmd_date.o
ifdef CONFIG_4xx ifdef CONFIG_4xx
COBJS-$(CONFIG_CMD_SETGETDCR) += cmd_dcr.o COBJS-$(CONFIG_CMD_SETGETDCR) += cmd_dcr.o

59
common/cmd_cplbinfo.c Normal file
View File

@@ -0,0 +1,59 @@
/*
* 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)
{
size_t 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, *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 *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,
"cplbinfo- display current CPLB tables\n",
"\n"
" - display current CPLB tables\n");