Blackfin: ldrinfo: new command
Simple command to decode/check an LDR image before we try to boot it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Mike Frysinger
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31488a6f6e
commit
1ba7fd2567
1
README
1
README
@ -653,6 +653,7 @@ The following options need to be configured:
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CONFIG_CMD_ITEST Integer/string test of 2 values
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CONFIG_CMD_JFFS2 * JFFS2 Support
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CONFIG_CMD_KGDB * kgdb
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CONFIG_CMD_LDRINFO ldrinfo (display Blackfin loader)
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CONFIG_CMD_LOADB loadb
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CONFIG_CMD_LOADS loads
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CONFIG_CMD_MD5SUM print md5 message digest
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@ -105,6 +105,7 @@ COBJS-$(CONFIG_CMD_IRQ) += cmd_irq.o
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COBJS-$(CONFIG_CMD_ITEST) += cmd_itest.o
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COBJS-$(CONFIG_CMD_JFFS2) += cmd_jffs2.o
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COBJS-$(CONFIG_CMD_CRAMFS) += cmd_cramfs.o
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COBJS-$(CONFIG_CMD_LDRINFO) += cmd_ldrinfo.o
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COBJS-$(CONFIG_CMD_LICENSE) += cmd_license.o
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COBJS-y += cmd_load.o
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COBJS-$(CONFIG_LOGBUFFER) += cmd_log.o
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192
common/cmd_ldrinfo.c
Normal file
192
common/cmd_ldrinfo.c
Normal file
@ -0,0 +1,192 @@
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/*
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* U-boot - ldrinfo
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*
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* Copyright (c) 2010 Analog Devices Inc.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* Licensed under the GPL-2 or later.
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*/
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#include <config.h>
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#include <common.h>
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#include <command.h>
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#include <asm/blackfin.h>
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#include <asm/mach-common/bits/bootrom.h>
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static uint32_t ldrinfo_header(const void *addr)
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{
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uint32_t skip = 0;
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#if defined(__ADSPBF561__)
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/* BF56x has a 4 byte global header */
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uint32_t header, sign;
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static const char * const spi_speed[] = {
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"500K", "1M", "2M", "??",
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};
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memcpy(&header, addr, sizeof(header));
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sign = (header & GFLAG_56X_SIGN_MASK) >> GFLAG_56X_SIGN_SHIFT;
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printf("Header: %08X ( %s-bit-flash wait:%i hold:%i spi:%s %s)\n",
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header,
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(header & GFLAG_56X_16BIT_FLASH) ? "16" : "8",
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(header & GFLAG_56X_WAIT_MASK) >> GFLAG_56X_WAIT_SHIFT,
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(header & GFLAG_56X_HOLD_MASK) >> GFLAG_56X_HOLD_SHIFT,
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spi_speed[(header & GFLAG_56X_SPI_MASK) >> GFLAG_56X_SPI_SHIFT],
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sign == GFLAG_56X_SIGN_MAGIC ? "" : "!!hdrsign!! ");
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skip = 4;
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#endif
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/* |Block @ 12345678: 12345678 12345678 12345678 12345678 | */
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#if defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \
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defined(__ADSPBF534__) || defined(__ADSPBF536__) || defined(__ADSPBF537__) || \
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defined(__ADSPBF538__) || defined(__ADSPBF539__) || defined(__ADSPBF561__)
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printf(" Address Count Flags\n");
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#else
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printf(" BCode Address Count Argument\n");
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#endif
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return skip;
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}
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struct ldr_flag {
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uint16_t flag;
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const char *desc;
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};
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static uint32_t ldrinfo_block(const void *base_addr)
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{
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uint32_t count;
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printf("Block @ %08X: ", (uint32_t)base_addr);
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#if defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \
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defined(__ADSPBF534__) || defined(__ADSPBF536__) || defined(__ADSPBF537__) || \
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defined(__ADSPBF538__) || defined(__ADSPBF539__) || defined(__ADSPBF561__)
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uint32_t addr, pval;
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uint16_t flags;
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int i;
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static const struct ldr_flag ldr_flags[] = {
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{ BFLAG_53X_ZEROFILL, "zerofill" },
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{ BFLAG_53X_RESVECT, "resvect" },
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{ BFLAG_53X_INIT, "init" },
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{ BFLAG_53X_IGNORE, "ignore" },
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{ BFLAG_53X_COMPRESSED, "compressed"},
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{ BFLAG_53X_FINAL, "final" },
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};
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memcpy(&addr, base_addr, sizeof(addr));
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memcpy(&count, base_addr+4, sizeof(count));
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memcpy(&flags, base_addr+8, sizeof(flags));
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printf("%08X %08X %04X ( ", addr, count, flags);
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for (i = 0; i < ARRAY_SIZE(ldr_flags); ++i)
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if (flags & ldr_flags[i].flag)
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printf("%s ", ldr_flags[i].desc);
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pval = (flags & BFLAG_53X_PFLAG_MASK) >> BFLAG_53X_PFLAG_SHIFT;
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if (pval)
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printf("gpio%i ", pval);
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pval = (flags & BFLAG_53X_PPORT_MASK) >> BFLAG_53X_PPORT_SHIFT;
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if (pval)
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printf("port%c ", 'e' + pval);
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if (flags & BFLAG_53X_ZEROFILL)
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count = 0;
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if (flags & BFLAG_53X_FINAL)
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count = 0;
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else
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count += sizeof(addr) + sizeof(count) + sizeof(flags);
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#else
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const uint8_t *raw8 = base_addr;
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uint32_t bcode, addr, arg, sign, chk;
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int i;
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static const struct ldr_flag ldr_flags[] = {
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{ BFLAG_SAFE, "safe" },
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{ BFLAG_AUX, "aux" },
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{ BFLAG_FILL, "fill" },
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{ BFLAG_QUICKBOOT, "quickboot" },
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{ BFLAG_CALLBACK, "callback" },
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{ BFLAG_INIT, "init" },
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{ BFLAG_IGNORE, "ignore" },
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{ BFLAG_INDIRECT, "indirect" },
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{ BFLAG_FIRST, "first" },
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{ BFLAG_FINAL, "final" },
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};
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memcpy(&bcode, base_addr, sizeof(bcode));
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memcpy(&addr, base_addr+4, sizeof(addr));
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memcpy(&count, base_addr+8, sizeof(count));
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memcpy(&arg, base_addr+12, sizeof(arg));
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printf("%08X %08X %08X %08X ( ", bcode, addr, count, arg);
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if (addr % 4)
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printf("!!addralgn!! ");
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if (count % 4)
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printf("!!cntalgn!! ");
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sign = (bcode & BFLAG_HDRSIGN_MASK) >> BFLAG_HDRSIGN_SHIFT;
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if (sign != BFLAG_HDRSIGN_MAGIC)
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printf("!!hdrsign!! ");
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chk = 0;
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for (i = 0; i < 16; ++i)
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chk ^= raw8[i];
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if (chk)
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printf("!!hdrchk!! ");
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printf("dma:%i ", bcode & BFLAG_DMACODE_MASK);
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for (i = 0; i < ARRAY_SIZE(ldr_flags); ++i)
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if (bcode & ldr_flags[i].flag)
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printf("%s ", ldr_flags[i].desc);
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if (bcode & BFLAG_FILL)
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count = 0;
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if (bcode & BFLAG_FINAL)
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count = 0;
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else
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count += sizeof(bcode) + sizeof(addr) + sizeof(count) + sizeof(arg);
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#endif
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printf(")\n");
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return count;
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}
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static int do_ldrinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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const void *addr;
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uint32_t skip;
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/* Get the address */
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if (argc < 2)
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addr = (void *)load_addr;
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else
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addr = (void *)simple_strtoul(argv[1], NULL, 16);
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/* Walk the LDR */
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addr += ldrinfo_header(addr);
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do {
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skip = ldrinfo_block(addr);
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addr += skip;
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} while (skip);
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return 0;
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}
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U_BOOT_CMD(
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ldrinfo, 2, 0, do_ldrinfo,
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"validate ldr image in memory",
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"[addr]\n"
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);
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