armv7/snow: get to romstage

This patch does a few things to get us into romstage:
- Add romstage as a stage (a later patch adds it as a binary, which
  is probably wrong). The Makefile magic is complex enough that we
  let it build the XIP file for now, but we no longer use it.

- Replace findstage with loadstage. Loadstage will find a stage,
  load the code to memory, and zero the remaining part of memory.
  Now we can link the romstage to go anywhere!

- Eliminate magic offsets from code/ldscripts and centralize Kconfig
  variables in src/cpu/samsung/exynos5250/Kconfig.

- Tidy up code and serial output

Change-Id: Iae4d2f9e7f429cb1df15d49daf9a08b88d75d79d
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2174
Tested-by: build bot (Jenkins)

1 files changed, 2 insertions, 3 deletions

diff --git a/src/arch/armv7/Makefile.inc b/src/arch/armv7/Makefile.inc
index 1d12eca3b7..2cf6ed942f 100644
--- a/src/arch/armv7/Makefile.inc
+++ b/src/arch/armv7/Makefile.inc
@@ -215,9 +215,8 @@ $(obj)/coreboot.pre: $(objcbfs)/romstage_xip.elf $(obj)/coreboot.pre1 $(CBFSTOOL
 	@printf "    CBFS       $(subst $(obj)/,,$(@))\n"
 	cp $(obj)/coreboot.pre1 $@.tmp
 	$(CBFSTOOL) $@.tmp add-stage \
-		-f $(objcbfs)/romstage_xip.elf \
-		-n $(CONFIG_CBFS_PREFIX)/romstage -c none \
-		-b $(shell cat $(objcbfs)/base_xip.txt)
+		-f $(objcbfs)/romstage_null.debug \
+		-n $(CONFIG_CBFS_PREFIX)/romstage -c none
 	mv $@.tmp $@
 
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