[PATCH v2 01/18] Makefile: Build a separate .dtb for TPL

[Simon Glass]

At present both SPL and TPL use the same devicetree binary. While there
is logic to run fdtgrep separately on each one, it does not actually
happen.

Add a new TPL rule and use that instead. Make this rule conditional on
there actually being a TPL. Do the same for SPL for consistency.

Note that the SPL and TPL dtbs are build by a Makefule rule used for
U-Boot proper. This is the 'dtbs' target in dts/Makefile. So the check
for CONFIG_TPL_BUILD in cmd_fdtgrep never actually works at present.

We don't support CONFIG_OF_EMBED for TPL at present.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v1)

 dts/Makefile         | 11 ++++++++---
 scripts/Makefile.spl |  4 +++-
 2 files changed, 11 insertions(+), 4 deletions(-)

Applied to u-boot-dm/next, thanks!