Use the upstream Samsung Janice device tree as the initial target for the Stemmy configuration. This also prepares the board to share the upstream Ux500 Samsung device trees with Linux.
U-Boot does not yet implement the U8500 clock providers used by the upstream device tree. Add a U-Boot-specific overlay with the known MTU clock rate and a fixed input clock for the external SD controller. Signed-off-by: Linus Walleij <[email protected]> --- arch/arm/dts/u8500-u-boot.dtsi | 20 ++++++++++++++++++++ configs/stemmy_defconfig | 3 ++- 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/arch/arm/dts/u8500-u-boot.dtsi b/arch/arm/dts/u8500-u-boot.dtsi new file mode 100644 index 000000000000..41eaad7f78b9 --- /dev/null +++ b/arch/arm/dts/u8500-u-boot.dtsi @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + +/ { + /* FIXME: Remove this when the U8500 clock driver is implemented */ + sdmmcclk: sdmmcclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <100000000>; + }; + + soc { + mtu@a03c6000 { + clock-frequency = <133000000>; + }; + + mmc@80126000 { + clocks = <&sdmmcclk>; + }; + }; +}; diff --git a/configs/stemmy_defconfig b/configs/stemmy_defconfig index 57e794c5c88b..1f512416c9f4 100644 --- a/configs/stemmy_defconfig +++ b/configs/stemmy_defconfig @@ -11,7 +11,8 @@ CONFIG_SYS_MALLOC_F_LEN=0x400 CONFIG_NR_DRAM_BANKS=2 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x100000 -CONFIG_DEFAULT_DEVICE_TREE="ste-ux500-samsung-stemmy" +CONFIG_DEFAULT_DEVICE_TREE="st/ste-ux500-samsung-janice" +CONFIG_OF_UPSTREAM=y CONFIG_SYS_BOOTM_LEN=0x4000000 CONFIG_SYS_LOAD_ADDR=0x100000 CONFIG_BOOTSTD_FULL=y -- 2.55.0
