This series add support for SPL to FU540.U-Boot SPL can boot from L2 LIM (0x0800_0000) and jump to OpenSBI(FW_DYNAMIC firmware) and U-Boot proper from MMC devices.
How to test this patch: 1) Go to OpenSBI-dir : make PLATFORM=sifive/fu540 O=build_dir I=install_dir FW_DYNAMIC=y install 2) cp install_dir/platform/sifive/fu540/firmware/fw_dynamic.bin <u-boot-dir>/ 3) Change to u-boot-dir 4) make sifive_fu540_defconfig 5) make all 6) ZSBL loads the U-boot SPL(u-boot-spl.bin) from a partition with GUID type 5B193300-FC78-40CD-8002-E86C45580B47
sudo dd if=spl/u-boot-spl.bin of=/dev/sdc4 bs=1M
7) U-boot SPL expects a u-boot FIT image(u-boot.itb) from 1st partition(/dev/sdc1) of SD card irrespective of GUID
sudo dd if=u-boot.itb of=/dev/sdc1 bs=1M
Thanks to Yash Shah yash.shah@sifive.com for testing the series.
Changes in v5: - Return read/write bytes for sifive_otp_read and sifive_otp_write - Correct Palmer's email address
Changes in v4: - Split misc DM driver patch into multiple patches - Added new SPL_CRC7_SUPPORT Kconfig option - Added DM driver for DDR - Added clk_enable and clk_disable ops in SiFive PRCI driver - Added early clock initialization for SPL in SiFive PRCI driver - Added SPL config options in sifive_fu540_defconfig instead of creatiing a new config file for SPL - Update fu540.rst on how to build and flash U-boot SPL
Changes in v3: - Remove arch-fu540 and arch-sifive from arch/riscv/include/asm/ - Split SPL patches into DDR and SPL and spl defconfig - Update fu540/MAINTAINERS file - Update fu540.rst on how to build and flash U-boot SPL
Changes in v2: - Add DM driver Sifive OTP - Split SPL patches into multiple patches - Add a seprate patch for _image_binary_end and crc7.c - Add a seprate patch to add board -u-boot.dtsi files - Update FU540 RISC-V documentation
Pragnesh Patel (14): misc: add driver for the SiFive otp controller riscv: sifive: fu540: Use OTP DM driver for serial environment variable riscv: Add _image_binary_end for SPL lib: Makefile: build crc7.c when CONFIG_MMC_SPI riscv: sifive: dts: fu540: Add board -u-boot.dtsi files sifive: fu540: add ddr driver sifive: dts: fu540: Add DDR controller and phy register settings clk: sifive: fu540-prci: Add clock enable and disable ops clk: sifive: fu540-prci: Add clock initialization for SPL riscv: sifive: fu540: add SPL configuration configs: fu540: Add config options for U-boot SPL riscv: sifive: fu540: enable all cache ways from u-boot proper sifive: fix palmer's email address doc: update FU540 RISC-V documentation
arch/riscv/cpu/u-boot-spl.lds | 1 + arch/riscv/dts/fu540-c000-u-boot.dtsi | 63 + arch/riscv/dts/fu540-sdram-ddr4.dtsi | 1489 +++++++++++++++++ .../dts/hifive-unleashed-a00-u-boot.dtsi | 23 + board/sifive/fu540/Kconfig | 10 + board/sifive/fu540/MAINTAINERS | 2 +- board/sifive/fu540/Makefile | 5 + board/sifive/fu540/cache.c | 20 + board/sifive/fu540/cache.h | 13 + board/sifive/fu540/fu540-memory-map.h | 23 + board/sifive/fu540/fu540.c | 141 +- board/sifive/fu540/spl.c | 78 + common/spl/Kconfig | 7 + configs/sifive_fu540_defconfig | 11 + doc/board/sifive/fu540.rst | 409 ++++- drivers/clk/sifive/fu540-prci.c | 169 +- drivers/misc/Kconfig | 7 + drivers/misc/Makefile | 1 + drivers/misc/sifive-otp.c | 241 +++ drivers/ram/Kconfig | 7 + drivers/ram/Makefile | 2 + drivers/ram/sifive/Kconfig | 8 + drivers/ram/sifive/Makefile | 6 + drivers/ram/sifive/sdram_fu540.c | 295 ++++ drivers/ram/sifive/sdram_fu540.h | 94 ++ include/configs/sifive-fu540.h | 18 + lib/Makefile | 1 + 27 files changed, 3042 insertions(+), 102 deletions(-) create mode 100644 arch/riscv/dts/fu540-c000-u-boot.dtsi create mode 100644 arch/riscv/dts/fu540-sdram-ddr4.dtsi create mode 100644 arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi create mode 100644 board/sifive/fu540/cache.c create mode 100644 board/sifive/fu540/cache.h create mode 100644 board/sifive/fu540/fu540-memory-map.h create mode 100644 board/sifive/fu540/spl.c create mode 100644 drivers/misc/sifive-otp.c create mode 100644 drivers/ram/sifive/Kconfig create mode 100644 drivers/ram/sifive/Makefile create mode 100644 drivers/ram/sifive/sdram_fu540.c create mode 100644 drivers/ram/sifive/sdram_fu540.h