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| author | Simon Glass <sjg@chromium.org> | 2013-06-11 11:14:46 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-06-26 10:16:41 -0400 |
| commit | 983c72f479173bced296f7292b4a9fbef9d17688 (patch) | |
| tree | a484e1ec6bc6d48ce0957c87df79357f319e618d /common/image.c | |
| parent | 37544a6dabdaf474726ed8374c58598f61e3fd71 (diff) | |
| download | u-boot-imx-983c72f479173bced296f7292b4a9fbef9d17688.zip u-boot-imx-983c72f479173bced296f7292b4a9fbef9d17688.tar.gz u-boot-imx-983c72f479173bced296f7292b4a9fbef9d17688.tar.bz2 | |
Clarify bootm OS arguments
At present the arguments to bootm are processed in a somewhat confusing
way. Sub-functions must know how many arguments their calling functions
have processed, and the OS boot function must also have this information.
Also it isn't obvious that 'bootm' and 'bootm start' provide arguments in
the same way.
Adjust the code so that arguments are removed from the list before calling
a sub-function. This means that all functions can know that argv[0] is the
first argument of which they need to take notice.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common/image.c')
| -rw-r--r-- | common/image.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/common/image.c b/common/image.c index f863502..1be384f 100644 --- a/common/image.c +++ b/common/image.c @@ -816,20 +816,23 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images, ulong default_addr; int rd_noffset; #endif + const char *select = NULL; *rd_start = 0; *rd_end = 0; + if (argc >= 2) + select = argv[1]; /* * Look for a '-' which indicates to ignore the * ramdisk argument */ - if ((argc >= 3) && (strcmp(argv[2], "-") == 0)) { + if (select && strcmp(select, "-") == 0) { debug("## Skipping init Ramdisk\n"); rd_len = rd_data = 0; - } else if (argc >= 3 || genimg_has_config(images)) { + } else if (select || genimg_has_config(images)) { #if defined(CONFIG_FIT) - if (argc >= 3) { + if (select) { /* * If the init ramdisk comes from the FIT image and * the FIT image address is omitted in the command @@ -841,12 +844,12 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images, else default_addr = load_addr; - if (fit_parse_conf(argv[2], default_addr, - &rd_addr, &fit_uname_config)) { + if (fit_parse_conf(select, default_addr, + &rd_addr, &fit_uname_config)) { debug("* ramdisk: config '%s' from image at " "0x%08lx\n", fit_uname_config, rd_addr); - } else if (fit_parse_subimage(argv[2], default_addr, + } else if (fit_parse_subimage(select, default_addr, &rd_addr, &fit_uname_ramdisk)) { debug("* ramdisk: subimage '%s' from image at " "0x%08lx\n", @@ -854,7 +857,7 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images, } else #endif { - rd_addr = simple_strtoul(argv[2], NULL, 16); + rd_addr = simple_strtoul(select, NULL, 16); debug("* ramdisk: cmdline image address = " "0x%08lx\n", rd_addr); @@ -918,7 +921,10 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images, #endif default: #ifdef CONFIG_SUPPORT_RAW_INITRD - if (argc >= 3 && (end = strchr(argv[2], ':'))) { + end = NULL; + if (select) + end = strchr(select, ':'); + if (end) { rd_len = simple_strtoul(++end, NULL, 16); rd_data = rd_addr; } else |