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dm: core: Fix Handling of global_data moving in SPL 

commit 2f11cd9121 ("dm: core: Handle global_data moving in SPL")
handles relocation of GD in SPL if spl_init() is called before
board_init_r(). So, uclass_root.next need not be initialized always
and accessing uclass_root.next->prev gives an abort. Update the
uclass_root only if it is available.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Lokesh Vutla 2017-02-13 09:21:22 +05:30 committed by Simon Glass
parent 5877d8f398
commit b0d9512ab0
1 changed files with 4 additions and 2 deletions
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6
drivers/core/root.c
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@ -44,8 +44,10 @@ struct udevice *dm_root(void)
void dm_fixup_for_gd_move(struct global_data *new_gd)
{
/* The sentinel node has moved, so update things that point to it */
new_gd->uclass_root.next->prev = &new_gd->uclass_root;
new_gd->uclass_root.prev->next = &new_gd->uclass_root;
if (gd->dm_root) {
new_gd->uclass_root.next->prev = &new_gd->uclass_root;
new_gd->uclass_root.prev->next = &new_gd->uclass_root;
}
}
fdt_addr_t dm_get_translation_offset(void)