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spl: allow a separate TEXT_BASE, LDSCRIPT and MAX_SIZE for TPL

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For the bringup of the RK3368, we need to support TPL and SPL running
from different addresses... which requires both stages to use a
distinct TEXT_BASE.

This commit adds support for having a separate LDSCRIPT for TPL (which
is expected to make use of the TPL_MAX_SIZE define) and for having a
the option of defining TPL_TEXT_BASE and having the TPL stage linked
against this address.

Note that the handling of the TEXT_BASE is designed to not interfere
with the previous assumption that SPL_TEXT_BASE should be used for TPL
as well, unless TPL_TEXT_BASE is defined.  For this reason, the test
in Makefile.spl uses the following (seemingly redundant checks):
 1. looks for $(SPL_TPL_)TEXT_BASE
 2. looks for SPL_TEXT_BASE (even when building in TPL)

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Philipp Tomsich 2017-07-04 14:47:46 +02:00
parent c3be6190f9
commit 1749858a64
2 changed files with 11 additions and 2 deletions
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10
scripts/Makefile.spl
View File

@ -103,9 +103,9 @@ u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
endif
# Linker Script
ifdef CONFIG_SPL_LDSCRIPT
ifdef CONFIG_$(SPL_TPL_)LDSCRIPT
# need to strip off double quotes
LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
endif
ifeq ($(wildcard $(LDSCRIPT)),)
@ -293,9 +293,15 @@ LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
# First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
else
# And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode
ifneq ($(CONFIG_SPL_TEXT_BASE),)
LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
endif
endif
MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE

3
scripts/config_whitelist.txt
View File

@ -4910,8 +4910,11 @@ CONFIG_TI_KSNAV
CONFIG_TI_SPI_MMAP
CONFIG_TMU_TIMER
CONFIG_TPL_DRIVERS_MISC_SUPPORT
CONFIG_TPL_LDSCRIPT
CONFIG_TPL_MAX_SIZE
CONFIG_TPL_PAD_TO
CONFIG_TPL_STACK
CONFIG_TPL_TEXT_BASE
CONFIG_TPM_TIS_BASE_ADDRESS
CONFIG_TPS6586X_POWER
CONFIG_TQM834X