If the node describing an overlay does not specify a load address, it will
be loaded at the address previously used.
Fixing it by allocating a temporary 64kB region that will be used as a
default load address.
Signed-off-by: Jean-Jacques Hiblot <jjhib...@ti.com>
---
Changes in v2: None
common/spl/spl_fit.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
index a2909604cd..b54b30820e 100644
--- a/common/spl/spl_fit.c
+++ b/common/spl/spl_fit.c
@@ -9,6 +9,7 @@
#include <fpga.h>
#include <image.h>
#include <linux/libfdt.h>
+#include <malloc.h>
#include <spl.h>
#ifndef CONFIG_SYS_BOOTM_LEN
@@ -302,6 +303,16 @@ static int spl_fit_append_fdt(struct spl_image_info
*spl_image,
spl_image->fdt_addr = (void *)image_info.load_addr;
#if !CONFIG_IS_ENABLED(FIT_IMAGE_TINY)
#if defined(CONFIG_OF_LIBFDT_OVERLAY)
+ void *tmpbuffer;
+ /*
+ * allocate 64kB of memory. This will be used to store the DT overlay
+ * before it is applied. It may not be used depending on how the
+ * overlay is stored.
+ */
+ tmpbuffer = malloc(64 * 1024);
+ if (!tmpbuffer)
+ debug("%s: unable to allocate space for overlays\n", __func__);
+
for (; ; index++) {
node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, index);
if (node < 0) {
@@ -309,6 +320,7 @@ static int spl_fit_append_fdt(struct spl_image_info
*spl_image,
return 0;
}
+ image_info.load_addr = (ulong) tmpbuffer;
ret = spl_load_fit_image(info, sector, fit, base_offset, node,
&image_info);
if (ret < 0)
@@ -327,6 +339,8 @@ static int spl_fit_append_fdt(struct spl_image_info
*spl_image,
debug("%s: DT overlay %s applied\n", __func__,
fit_get_name(fit, node, NULL));
}
+ if (tmpbuffer)
+ free(tmpbuffer);
#endif
/* Try to make space, so we can inject details on the loadables */
ret = fdt_shrink_to_minimum(spl_image->fdt_addr, 8192);
--
2.17.1
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