On Wed, Jul 26, 2017 at 12:40:20PM +0200, Philipp Tomsich wrote:
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):
- looks for $(SPL_TPL_)TEXT_BASE
- looks for SPL_TEXT_BASE (even when building in TPL)
Signed-off-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com
Changes in v2: None
scripts/Makefile.spl | 10 ++++++++-- scripts/config_whitelist.txt | 3 +++ 2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl index 3e35cd6..4a9a58f 100644 --- a/scripts/Makefile.spl +++ b/scripts/Makefile.spl @@ -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 diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt index 34aadc5..d8d00f5 100644 --- a/scripts/config_whitelist.txt +++ b/scripts/config_whitelist.txt @@ -4996,8 +4996,11 @@ 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
I'm not super happy about adding to the whitelist. I know some of these aren't easy to migrate to Kconfig, but can we add the new ones at least in Kconfig? Thanks!