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image: introduce genimg_get_kernel_addr()

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Kernel address is normally stored as a string argument of bootm or bootz.
This function is taken out from boot_get_kernel() of bootm.c, which can be
reused by others.

Signed-off-by: Bryan Wu <pengw@nvidia.com>
[trini: Fix warnings with CONFIG_FIT]
Signed-off-by: Tom Rini <trini@ti.com>
This commit is contained in:
Bryan Wu
2014-07-31 17:39:58 -07:00
committed by Tom Rini
parent 68dc8769e3
commit 0f64140b69
2 changed files with 44 additions and 0 deletions
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43
common/image.c
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@@ -642,6 +642,49 @@ int genimg_get_comp_id(const char *name)
}
#ifndef USE_HOSTCC
/**
* genimg_get_kernel_addr - get the real kernel address
* @img_addr: a string might contain real image address
*
* genimg_get_kernel_addr() get the real kernel start address from a string
* which is normally the first argv of bootm/bootz
*
* returns:
* kernel start address
*/
ulong genimg_get_kernel_addr(char * const img_addr)
{
#if defined(CONFIG_FIT)
const char *fit_uname_config = NULL;
const char *fit_uname_kernel = NULL;
#endif
ulong kernel_addr;
/* find out kernel image address */
if (!img_addr) {
kernel_addr = load_addr;
debug("* kernel: default image load address = 0x%08lx\n",
load_addr);
#if defined(CONFIG_FIT)
} else if (fit_parse_conf(img_addr, load_addr, &kernel_addr,
&fit_uname_config)) {
debug("* kernel: config '%s' from image at 0x%08lx\n",
fit_uname_config, kernel_addr);
} else if (fit_parse_subimage(img_addr, load_addr, &kernel_addr,
&fit_uname_kernel)) {
debug("* kernel: subimage '%s' from image at 0x%08lx\n",
fit_uname_kernel, kernel_addr);
#endif
} else {
kernel_addr = simple_strtoul(img_addr, NULL, 16);
debug("* kernel: cmdline image address = 0x%08lx\n",
kernel_addr);
}
return kernel_addr;
}
/**
* genimg_get_format - get image format type
* @img_addr: image start address