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ARM: tegra: Copy memory-region-names property

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If multiple entries are present in the memory-region property, this new
memory-region-names property can be used to specify names for each of
them so that they can be more easily distinguished.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Thierry Reding
2021-09-03 15:16:25 +02:00
committed by Tom Warren
parent 77409c7f83
commit a0ba216ed4
1 changed files with 30 additions and 1 deletions
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31
arch/arm/mach-tegra/dt-setup.c
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@@ -78,9 +78,11 @@ void ft_mac_address_setup(void *fdt)
static int ft_copy_carveout(void *dst, const void *src, const char *node)
{
const char *names = "memory-region-names";
struct fdt_memory carveout;
unsigned int index = 0;
int err;
int err, offset, len;
const void *prop;
while (true) {
const char **compatibles = NULL;
@@ -96,6 +98,8 @@ static int ft_copy_carveout(void *dst, const void *src, const char *node)
if (err != -FDT_ERR_NOTFOUND)
printf("failed to get carveout for %s: %d\n",
node, err);
else
break;
return err;
}
@@ -126,6 +130,31 @@ static int ft_copy_carveout(void *dst, const void *src, const char *node)
index++;
}
offset = fdt_path_offset(src, node);
if (offset < 0) {
debug("failed to find source offset for %s: %s\n", node,
fdt_strerror(err));
return err;
}
prop = fdt_getprop(src, offset, names, &len);
if (prop) {
offset = fdt_path_offset(dst, node);
if (offset < 0) {
debug("failed to find destination offset for %s: %s\n",
node, fdt_strerror(err));
return err;
}
err = fdt_setprop(dst, offset, "memory-region-names", prop,
len);
if (err < 0) {
debug("failed to copy \"%s\" property: %s\n", names,
fdt_strerror(err));
return err;
}
}
return 0;
}