Hi Jonas,
On 2/5/23 21:21, Jonas Karlman wrote:
Rockchip SoCs typically use U-Boot TPL to initialize DRAM, then jumps
back to boot-rom to load the next stage of the boot flow, U-Boot SPL.
For RK356x there is currently no support to initialize DRAM using U-Boot
TPL and instead an external TPL binary must be used to generate a
working u-boot-rockchip.bin image.
Use the new external-tpl entry unless CONFIG_TPL=y to indicate that an
external TPL binary must be provided to generate a working firmware.
Signed-off-by: Jonas Karlman <jo...@kwiboo.se>
---
Makefile | 1 +
arch/arm/dts/rockchip-u-boot.dtsi | 16 ++++++++++++----
tools/binman/missing-blob-help | 5 +++++
3 files changed, 18 insertions(+), 4 deletions(-)
diff --git a/Makefile b/Makefile
index 7eaf45496c1c..7e9272be937f 100644
--- a/Makefile
+++ b/Makefile
@@ -1332,6 +1332,7 @@ cmd_binman = $(srctree)/tools/binman/binman $(if
$(BINMAN_DEBUG),-D) \
-a opensbi-path=${OPENSBI} \
-a default-dt=$(default_dt) \
-a scp-path=$(SCP) \
+ -a external-tpl-path=$(EXTERNAL_TPL) \
-a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
-a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
-a spl-dtb=$(CONFIG_SPL_OF_REAL) \
diff --git a/arch/arm/dts/rockchip-u-boot.dtsi
b/arch/arm/dts/rockchip-u-boot.dtsi
index 6c662a72d4f9..bc3bc9bc3e37 100644
--- a/arch/arm/dts/rockchip-u-boot.dtsi
+++ b/arch/arm/dts/rockchip-u-boot.dtsi
@@ -20,12 +20,16 @@
mkimage {
filename = "idbloader.img";
args = "-n", CONFIG_SYS_SOC, "-T", "rksd";
-#ifdef CONFIG_TPL
multiple-data-files;
+#ifdef CONFIG_TPL
u-boot-tpl {
- };
+#else
+ external-tpl {
+ filename = "ddr.bin";
+ missing-msg = "external-tpl-rockchip";
#endif
+ };
NACK. This forces the use of a TPL (either built by U-Boot or external)
which is not always the case. There are still boards without a TPL which
work perfectly fine (at least I would hope so :) ).
Basically there are three possible cases:
SPL
TPL+SPL
TPL(external blob)+SPL
Here you remove the ability to have SPL only.
Hence why I suggested we add a new Kconfig option for EXTERNAL_TPL, not
for the path but to explicit this third possibility.
Cheers,
Quentin
u-boot-spl {
};
};
@@ -134,12 +138,16 @@
mkimage {
filename = "idbloader-spi.img";
args = "-n", CONFIG_SYS_SOC, "-T", "rkspi";
-#ifdef CONFIG_TPL
multiple-data-files;
+#ifdef CONFIG_TPL
u-boot-tpl {
- };
+#else
+ external-tpl {
+ filename = "ddr.bin";
+ missing-msg = "external-tpl-rockchip";
#endif
+ };
u-boot-spl {
};
};
diff --git a/tools/binman/missing-blob-help b/tools/binman/missing-blob-help
index c61ca02a35ee..e850824032dd 100644
--- a/tools/binman/missing-blob-help
+++ b/tools/binman/missing-blob-help
@@ -14,6 +14,11 @@ atf-bl31-sunxi:
Please read the section on ARM Trusted Firmware (ATF) in
board/sunxi/README.sunxi64
+external-tpl-rockchip:
+External TPL is required to initialize DRAM. Get external TPL binary and
+build with EXTERNAL_TPL=/path/to/ddr.bin. One possible source for
+external TPL binary is
https://urldefense.com/v3/__https://github.com/rockchip-linux/rkbin__;!!OOPJP91ZZw!jRwonQRHKoxzegx3S3cRYfalkhW1ESLyBCTmVc2c6fnmPaQBOZyxG2I7phwM3pEZxR2QIHQG8Hw3JStyx4tDcMsalwYDCg$
.
+
scp-sunxi:
SCP firmware is required for system suspend, but is otherwise optional.
Please read the section on SCP firmware in board/sunxi/README.sunxi64
