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dm: allow limiting pre-reloc markings to spl or tpl

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Right now the u-boot,dm-pre-reloc flag will make each marked node
always appear in both spl and tpl. But systems needing an additional
tpl might have special constraints for each, like the spl needing to
be very tiny.

So introduce two additional flags to mark nodes for only spl or tpl
environments and introduce a function dm_fdt_pre_reloc to automate
the necessary checks in code instances checking for pre-relocation
flags.

The behaviour of the original flag stays untouched and still marks
a node for both spl and tpl.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Heiko Stübner
2017-02-18 19:46:21 +01:00
committed by Simon Glass
parent 2adb981207
commit 27326c7ee2
8 changed files with 68 additions and 4 deletions
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2
drivers/core/root.c
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@@ -205,7 +205,7 @@ int dm_scan_fdt_node(struct udevice *parent, const void *blob, int offset,
offset > 0;
offset = fdt_next_subnode(blob, offset)) {
if (pre_reloc_only &&
!fdt_getprop(blob, offset, "u-boot,dm-pre-reloc", NULL))
!dm_fdt_pre_reloc(blob, offset))
continue;
if (!fdtdec_get_is_enabled(blob, offset)) {
dm_dbg(" - ignoring disabled device\n");