Signed-off-by: Lei Wen leiwen@marvell.com --- Changelog: Add README description for new added zip command
README | 6 +++++ common/Makefile | 1 + common/cmd_zip.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 67 insertions(+), 0 deletions(-) create mode 100644 common/cmd_zip.c
diff --git a/README b/README index a745d0b..af76b0c 100644 --- a/README +++ b/README @@ -1483,6 +1483,12 @@ The following options need to be configured: can be displayed via the splashscreen support or the bmp command.
+- Do compresssing for memory range: + CONFIG_CMD_ZIP + + If this option is set, it would use zlib deflate method + to compress the specified memory at its best effort. + - Compression support: CONFIG_BZIP2
diff --git a/common/Makefile b/common/Makefile index b56df1d..125b2be 100644 --- a/common/Makefile +++ b/common/Makefile @@ -170,6 +170,7 @@ endif COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o COBJS-$(CONFIG_CMD_SPL) += cmd_spl.o +COBJS-$(CONFIG_CMD_ZIP) += cmd_zip.o COBJS-$(CONFIG_CMD_ZFS) += cmd_zfs.o
# others diff --git a/common/cmd_zip.c b/common/cmd_zip.c new file mode 100644 index 0000000..a73c86d --- /dev/null +++ b/common/cmd_zip.c @@ -0,0 +1,60 @@ +/* + * (C) Copyright 2012 + * Lei Wen leiwen@marvell.com, Marvell Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> + +static int do_zip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + unsigned long src, dst; + unsigned long src_len, dst_len = ~0UL; + char buf[32]; + + switch (argc) { + case 5: + dst_len = simple_strtoul(argv[4], NULL, 16); + /* fall through */ + case 4: + src = simple_strtoul(argv[1], NULL, 16); + src_len = simple_strtoul(argv[2], NULL, 16); + dst = simple_strtoul(argv[3], NULL, 16); + break; + default: + return cmd_usage(cmdtp); + } + + if (gzip((void *) dst, &dst_len, (void *) src, src_len) != 0) + return 1; + + printf("Compressed size: %ld = 0x%lX\n", dst_len, dst_len); + sprintf(buf, "%lX", dst_len); + setenv("filesize", buf); + + return 0; +} + +U_BOOT_CMD( + zip, 5, 1, do_zip, + "zip a memory region", + "srcaddr srcsize dstaddr [dstsize]" +);