sysmo-bts
/
barebox
9
0
Fork 0
Code Releases Activity

common/bootargs: add blkdevparts variables 

The kernel command line option blkdevparts works like mtdparts, but for all
block devices. So it can be used for eMMC devices without the need of a
traditional partition table.

Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Hubert Feurstein 2015-02-16 14:03:18 +01:00 committed by Sascha Hauer
parent d3f4ae5614
commit f52cf03aad
1 changed files with 16 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
common/bootargs.c
View File

@ -38,7 +38,7 @@ static int linux_bootargs_overwritten;
*/
const char *linux_bootargs_get(void)
{
char *bootargs, *mtdparts;
char *bootargs, *parts;
if (linux_bootargs_overwritten)
return linux_bootargs;
@ -49,14 +49,21 @@ const char *linux_bootargs_get(void)
if (!strlen(bootargs))
return getenv("bootargs");
mtdparts = globalvar_get_match("linux.mtdparts.", ";");
linux_bootargs = bootargs;
if (strlen(mtdparts)) {
linux_bootargs = asprintf("%s mtdparts=%s", bootargs, mtdparts);
free(bootargs);
free(mtdparts);
} else {
free(mtdparts);
parts = globalvar_get_match("linux.mtdparts.", ";");
if (strlen(parts)) {
bootargs = asprintf("%s mtdparts=%s", linux_bootargs, parts);
free(linux_bootargs);
free(parts);
linux_bootargs = bootargs;
}
parts = globalvar_get_match("linux.blkdevparts.", ";");
if (strlen(parts)) {
bootargs = asprintf("%s blkdevparts=%s", linux_bootargs, parts);
free(linux_bootargs);
free(parts);
linux_bootargs = bootargs;
}
@ -78,3 +85,4 @@ int linux_bootargs_overwrite(const char *bootargs)
BAREBOX_MAGICVAR_NAMED(global_linux_bootargs_, global.linux.bootargs.*, "Linux bootargs variables");
BAREBOX_MAGICVAR_NAMED(global_linux_mtdparts_, global.linux.mtdparts.*, "Linux mtdparts variables");
BAREBOX_MAGICVAR_NAMED(global_linux_blkdevparts_, global.linux.blkdevparts.*, "Linux blkdevparts variables");