Commit 1ba7fd25 authored by Mike Frysinger's avatar Mike Frysinger

Blackfin: ldrinfo: new command

Simple command to decode/check an LDR image before we try to boot it.
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent 31488a6f
......@@ -653,6 +653,7 @@ The following options need to be configured:
CONFIG_CMD_ITEST Integer/string test of 2 values
CONFIG_CMD_JFFS2 * JFFS2 Support
CONFIG_CMD_KGDB * kgdb
CONFIG_CMD_LDRINFO ldrinfo (display Blackfin loader)
CONFIG_CMD_LOADB loadb
CONFIG_CMD_LOADS loads
CONFIG_CMD_MD5SUM print md5 message digest
......
......@@ -105,6 +105,7 @@ COBJS-$(CONFIG_CMD_IRQ) += cmd_irq.o
COBJS-$(CONFIG_CMD_ITEST) += cmd_itest.o
COBJS-$(CONFIG_CMD_JFFS2) += cmd_jffs2.o
COBJS-$(CONFIG_CMD_CRAMFS) += cmd_cramfs.o
COBJS-$(CONFIG_CMD_LDRINFO) += cmd_ldrinfo.o
COBJS-$(CONFIG_CMD_LICENSE) += cmd_license.o
COBJS-y += cmd_load.o
COBJS-$(CONFIG_LOGBUFFER) += cmd_log.o
......
/*
* U-boot - ldrinfo
*
* Copyright (c) 2010 Analog Devices Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* Licensed under the GPL-2 or later.
*/
#include <config.h>
#include <common.h>
#include <command.h>
#include <asm/blackfin.h>
#include <asm/mach-common/bits/bootrom.h>
static uint32_t ldrinfo_header(const void *addr)
{
uint32_t skip = 0;
#if defined(__ADSPBF561__)
/* BF56x has a 4 byte global header */
uint32_t header, sign;
static const char * const spi_speed[] = {
"500K", "1M", "2M", "??",
};
memcpy(&header, addr, sizeof(header));
sign = (header & GFLAG_56X_SIGN_MASK) >> GFLAG_56X_SIGN_SHIFT;
printf("Header: %08X ( %s-bit-flash wait:%i hold:%i spi:%s %s)\n",
header,
(header & GFLAG_56X_16BIT_FLASH) ? "16" : "8",
(header & GFLAG_56X_WAIT_MASK) >> GFLAG_56X_WAIT_SHIFT,
(header & GFLAG_56X_HOLD_MASK) >> GFLAG_56X_HOLD_SHIFT,
spi_speed[(header & GFLAG_56X_SPI_MASK) >> GFLAG_56X_SPI_SHIFT],
sign == GFLAG_56X_SIGN_MAGIC ? "" : "!!hdrsign!! ");
skip = 4;
#endif
/* |Block @ 12345678: 12345678 12345678 12345678 12345678 | */
#if defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \
defined(__ADSPBF534__) || defined(__ADSPBF536__) || defined(__ADSPBF537__) || \
defined(__ADSPBF538__) || defined(__ADSPBF539__) || defined(__ADSPBF561__)
printf(" Address Count Flags\n");
#else
printf(" BCode Address Count Argument\n");
#endif
return skip;
}
struct ldr_flag {
uint16_t flag;
const char *desc;
};
static uint32_t ldrinfo_block(const void *base_addr)
{
uint32_t count;
printf("Block @ %08X: ", (uint32_t)base_addr);
#if defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \
defined(__ADSPBF534__) || defined(__ADSPBF536__) || defined(__ADSPBF537__) || \
defined(__ADSPBF538__) || defined(__ADSPBF539__) || defined(__ADSPBF561__)
uint32_t addr, pval;
uint16_t flags;
int i;
static const struct ldr_flag ldr_flags[] = {
{ BFLAG_53X_ZEROFILL, "zerofill" },
{ BFLAG_53X_RESVECT, "resvect" },
{ BFLAG_53X_INIT, "init" },
{ BFLAG_53X_IGNORE, "ignore" },
{ BFLAG_53X_COMPRESSED, "compressed"},
{ BFLAG_53X_FINAL, "final" },
};
memcpy(&addr, base_addr, sizeof(addr));
memcpy(&count, base_addr+4, sizeof(count));
memcpy(&flags, base_addr+8, sizeof(flags));
printf("%08X %08X %04X ( ", addr, count, flags);
for (i = 0; i < ARRAY_SIZE(ldr_flags); ++i)
if (flags & ldr_flags[i].flag)
printf("%s ", ldr_flags[i].desc);
pval = (flags & BFLAG_53X_PFLAG_MASK) >> BFLAG_53X_PFLAG_SHIFT;
if (pval)
printf("gpio%i ", pval);
pval = (flags & BFLAG_53X_PPORT_MASK) >> BFLAG_53X_PPORT_SHIFT;
if (pval)
printf("port%c ", 'e' + pval);
if (flags & BFLAG_53X_ZEROFILL)
count = 0;
if (flags & BFLAG_53X_FINAL)
count = 0;
else
count += sizeof(addr) + sizeof(count) + sizeof(flags);
#else
const uint8_t *raw8 = base_addr;
uint32_t bcode, addr, arg, sign, chk;
int i;
static const struct ldr_flag ldr_flags[] = {
{ BFLAG_SAFE, "safe" },
{ BFLAG_AUX, "aux" },
{ BFLAG_FILL, "fill" },
{ BFLAG_QUICKBOOT, "quickboot" },
{ BFLAG_CALLBACK, "callback" },
{ BFLAG_INIT, "init" },
{ BFLAG_IGNORE, "ignore" },
{ BFLAG_INDIRECT, "indirect" },
{ BFLAG_FIRST, "first" },
{ BFLAG_FINAL, "final" },
};
memcpy(&bcode, base_addr, sizeof(bcode));
memcpy(&addr, base_addr+4, sizeof(addr));
memcpy(&count, base_addr+8, sizeof(count));
memcpy(&arg, base_addr+12, sizeof(arg));
printf("%08X %08X %08X %08X ( ", bcode, addr, count, arg);
if (addr % 4)
printf("!!addralgn!! ");
if (count % 4)
printf("!!cntalgn!! ");
sign = (bcode & BFLAG_HDRSIGN_MASK) >> BFLAG_HDRSIGN_SHIFT;
if (sign != BFLAG_HDRSIGN_MAGIC)
printf("!!hdrsign!! ");
chk = 0;
for (i = 0; i < 16; ++i)
chk ^= raw8[i];
if (chk)
printf("!!hdrchk!! ");
printf("dma:%i ", bcode & BFLAG_DMACODE_MASK);
for (i = 0; i < ARRAY_SIZE(ldr_flags); ++i)
if (bcode & ldr_flags[i].flag)
printf("%s ", ldr_flags[i].desc);
if (bcode & BFLAG_FILL)
count = 0;
if (bcode & BFLAG_FINAL)
count = 0;
else
count += sizeof(bcode) + sizeof(addr) + sizeof(count) + sizeof(arg);
#endif
printf(")\n");
return count;
}
static int do_ldrinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
const void *addr;
uint32_t skip;
/* Get the address */
if (argc < 2)
addr = (void *)load_addr;
else
addr = (void *)simple_strtoul(argv[1], NULL, 16);
/* Walk the LDR */
addr += ldrinfo_header(addr);
do {
skip = ldrinfo_block(addr);
addr += skip;
} while (skip);
return 0;
}
U_BOOT_CMD(
ldrinfo, 2, 0, do_ldrinfo,
"validate ldr image in memory",
"[addr]\n"
);
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