Add booting from SPI for SiFive Unleashed board.
Signed-off-by: Jagan Teki jagan@amarulasolutions.com --- Changes for v3: - updated based on master
arch/riscv/cpu/fu540/Kconfig | 2 + .../dts/hifive-unleashed-a00-u-boot.dtsi | 12 ++++++ configs/sifive_fu540_defconfig | 4 ++ doc/board/sifive/fu540.rst | 41 +++++++++++++++++++ 4 files changed, 59 insertions(+)
diff --git a/arch/riscv/cpu/fu540/Kconfig b/arch/riscv/cpu/fu540/Kconfig index e9302e87c0..7a813a9ac8 100644 --- a/arch/riscv/cpu/fu540/Kconfig +++ b/arch/riscv/cpu/fu540/Kconfig @@ -5,6 +5,8 @@ config SIFIVE_FU540 bool select ARCH_EARLY_INIT_R + imply BOARD + imply BOARD_FU540 imply CPU imply CPU_RISCV imply RISCV_TIMER diff --git a/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi b/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi index 303806454b..4b2b242deb 100644 --- a/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi +++ b/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi @@ -12,6 +12,10 @@ spi2 = &qspi2; };
+ config { + u-boot,spl-payload-offset = <0x105000>; /* loader2 @1044KB */ + }; + hfclk { u-boot,dm-spl; }; @@ -22,6 +26,14 @@
};
+&qspi0 { + u-boot,dm-spl; + + flash@0 { + u-boot,dm-spl; + }; +}; + &qspi2 { mmc@0 { u-boot,dm-spl; diff --git a/configs/sifive_fu540_defconfig b/configs/sifive_fu540_defconfig index 8d412f8d6a..551d4b04a5 100644 --- a/configs/sifive_fu540_defconfig +++ b/configs/sifive_fu540_defconfig @@ -2,9 +2,11 @@ CONFIG_RISCV=y CONFIG_SPL_GPIO_SUPPORT=y CONFIG_SYS_MALLOC_F_LEN=0x3000 CONFIG_ENV_SIZE=0x20000 +CONFIG_SPL_DM_SPI=y CONFIG_SPL_MMC_SUPPORT=y CONFIG_NR_DRAM_BANKS=1 CONFIG_SPL=y +CONFIG_SPL_SPI_FLASH_SUPPORT=y CONFIG_SPL_SPI_SUPPORT=y CONFIG_TARGET_SIFIVE_FU540=y CONFIG_ARCH_RV64I=y @@ -15,9 +17,11 @@ CONFIG_MISC_INIT_R=y CONFIG_DISPLAY_CPUINFO=y CONFIG_DISPLAY_BOARDINFO=y CONFIG_SPL_SEPARATE_BSS=y +CONFIG_SPL_SPI_LOAD=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_DM_SEQ_ALIAS=y CONFIG_SPL_CLK=y CONFIG_DM_MTD=y diff --git a/doc/board/sifive/fu540.rst b/doc/board/sifive/fu540.rst index f7c2c9f5bd..7a4b208288 100644 --- a/doc/board/sifive/fu540.rst +++ b/doc/board/sifive/fu540.rst @@ -533,3 +533,44 @@ Sample boot log from HiFive Unleashed board type: 0fc63daf-8483-4772-8e79-3d69d8477de4 type: linux guid: 9faa81b6-39b1-4418-af5e-89c48f29c20d + +Booting from SPI +---------------- + +Use Building steps from "Booting from MMC using U-Boot SPL" section. + +Partition the SPI in Linux via mtdblock. (Require to boot the board in +SD boot mode by enabling MTD block in Linux) + +Use prebuilt image from here [1], which support to partition the SPI flash. + +.. code-block:: none + + # sgdisk --clear \ + > --set-alignment=2 \ + > --new=1:40:2087 --change-name=1:loader1 --typecode=1:5B193300-FC78-40CD-8002-E86C45580B47 \ + > --new=2:2088:10279 --change-name=2:loader2 --typecode=2:2E54B353-1271-4842-806F-E436D6AF6985 \ + > --new=3:10536:65494 --change-name=3:rootfs --typecode=3:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \ + > /dev/mtdblock0 + +Program the SPI (Require to boot the board in SD boot mode) + +Execute below steps on U-Boot proper, + +.. code-block:: none + + tftpboot $kernel_addr_r u-boot-spl.bin + sf erase 0x5000 $filesize + sf write $kernel_addr_r 0x5000 $filesize + + tftpboot $kernel_addr_r u-boot.itb + sf erase 0x105000 $filesize + sf write $kernel_addr_r 0x105000 $filesize + +Power off the board + +Change DIP switches MSEL[3:0] are set to 0110 + +Power up the board. + +[1] https://github.com/amarula/bsp-sifive