On Tue, May 19, 2020 at 12:35 PM Pragnesh Patel pragnesh.patel@sifive.com wrote:
With sifive_fu540_defconfig:
User can use FSBL or u-boot-spl.bin anyone at a time.
For FSBL, fsbl->fw_payload.bin (opensbi + U-Boot)
For u-boot-spl.bin, u-boot-spl.bin->FIT image (opensbi + U-Boot proper + dtb)
U-Boot SPL will be loaded by ZSBL from SD card (replace fsbl.bin with u-boot-spl.bin) and runs in L2 LIM in machine mode and then load FIT image u-boot.itb from SD card into RAM.
U-Boot SPL expects u-boot.itb FIT image at the starting of SD card sector number (0x822) of GUID type "2E54B353-1271-4842-806F-E436D6AF6985"
Signed-off-by: Pragnesh Patel pragnesh.patel@sifive.com Signed-off-by: Jagan Teki jagan@amarulasolutions.com Reviewed-by: Jagan Teki jagan@amarulasolutions.com Reviewed-by: Bin Meng bmeng.cn@gmail.com
configs/sifive_fu540_defconfig | 8 ++ doc/board/sifive/fu540.rst | 131 +++++++++++++++++++++++++++++++++ 2 files changed, 139 insertions(+)
diff --git a/configs/sifive_fu540_defconfig b/configs/sifive_fu540_defconfig index f805aacc7a..8d412f8d6a 100644 --- a/configs/sifive_fu540_defconfig +++ b/configs/sifive_fu540_defconfig @@ -1,6 +1,11 @@ CONFIG_RISCV=y +CONFIG_SPL_GPIO_SUPPORT=y +CONFIG_SYS_MALLOC_F_LEN=0x3000 CONFIG_ENV_SIZE=0x20000 +CONFIG_SPL_MMC_SUPPORT=y CONFIG_NR_DRAM_BANKS=1 +CONFIG_SPL=y +CONFIG_SPL_SPI_SUPPORT=y CONFIG_TARGET_SIFIVE_FU540=y CONFIG_ARCH_RV64I=y CONFIG_RISCV_SMODE=y @@ -9,7 +14,10 @@ CONFIG_FIT=y CONFIG_MISC_INIT_R=y CONFIG_DISPLAY_CPUINFO=y CONFIG_DISPLAY_BOARDINFO=y +CONFIG_SPL_SEPARATE_BSS=y +CONFIG_SPL_YMODEM_SUPPORT=y CONFIG_OF_BOARD_FIXUP=y CONFIG_DEFAULT_DEVICE_TREE="hifive-unleashed-a00" CONFIG_SYS_RELOC_GD_ENV_ADDR=y +CONFIG_SPL_CLK=y CONFIG_DM_MTD=y diff --git a/doc/board/sifive/fu540.rst b/doc/board/sifive/fu540.rst index 610ba87074..766629ebae 100644 --- a/doc/board/sifive/fu540.rst +++ b/doc/board/sifive/fu540.rst @@ -31,6 +31,9 @@ TODO: stdout-path = "/soc/serial@10010000:115200"; };
+Booting from MMC using FSBL +---------------------------
Building
@@ -421,3 +424,131 @@ as well.
Please press Enter to activate this console. / #
+Booting from MMC using U-Boot SPL +---------------------------------
+Building +--------
+Before building U-Boot SPL, OpenSBI must be built first. OpenSBI can be +cloned and built for FU540 as below:
+.. code-block:: console
git clone https://github.com/riscv/opensbi.gitcd opensbimake PLATFORM=generic FW_DYNAMIC=y
Look like explicit FW_DYNAMIC=y is optional.
+Copy OpenSBI FW_DYNAMIC image +(build/platform/generic/firmware/fw_dynamic.bin) into U-Boot +root directory
+.. code-block:: console
cp build/platform/generic/firmware/fw_dynamic.bin <u-boot-dir>
No copy needed here.
export OPENSBI=build/platform/generic/firmware/fw_dynamic.bin