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.
This series depends on: [1] https://patchwork.ozlabs.org/patch/1281853 [2] https://patchwork.ozlabs.org/patch/1281852
All these together is available for testing here [3] [3] https://github.com/pragnesh26992/u-boot/tree/spl
How to test this patch: 1) Go to OpenSBI-dir : make PLATFORM=generic FW_DYNAMIC=y 2) export OPENSBI=<path/to/opensbi/build/platform/generic/firmware/fw_dynamic.bin> 3) Change to u-boot-dir 4) make sifive_fu540_defconfig 5) make all 6) Format the SD card (make sure the disk has GPT, otherwise use gdisk to switch)
# sudo sgdisk --clear \ > --set-alignment=2 \ > --new=1:34:2081 --change-name=1:loader1 --typecode=1:5B193300-FC78-40CD-8002-E86C45580B47 \ > --new=2:2082:10273 --change-name=2:loader2 --typecode=2:2E54B353-1271-4842-806F-E436D6AF6985 \ > --new=3:10274: --change-name=3:rootfs --typecode=3:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \ > /dev/sda
7) sudo dd if=spl/u-boot-spl.bin of=/dev/sda seek=34 8) sudo dd if=u-boot.itb of=/dev/sda seek=2082
Changes in v8: - Remove SPL_CRC7_SUPPORT Kconfig option and compile crc7.o when CONFIG_MMC_SPI selected - Add "TODO" in drivers/ram/sifive/sdram_fu540.c - Remove unnecessary TODO from drivers/clk/sifive/fu540-prci.c - Make fu540-hifive-unleashed-a00-sdram-ddr4.dtsi file dual-licensed - Add 2 new patches sifive: fu540: Add sample SD gpt partition layout (https://patchwork.ozlabs.org/patch/1092) sifive: fu540: Add U-Boot proper sector start (https://patchwork.ozlabs.org/patch/1093) - Remove patch riscv: Enable cpu clock if it is present (https://patchwork.ozlabs.org/patch/1281573) - Update doc/board/sifive/fu540.rst for PLATFORM=generic
Changes in v7: - Standardize SD gpt partition layout - Add delay for SiFive OTP driver - Use DM way for corepll and ddrpll - Add new cpu fu540 (arch/riscv/cpu/fu540) - Update document for FU540 (doc/board/sifive/fu540.rst)
Changes in v6: - Typo Correction - Make fu540-c000-u-boot.dtsi and hifive-unleashed-a00-u-boot.dtsi Dual Licensed - Sync Hifive unleashed dts from Linux - Add arch/riscv/fu540 for FU540 specific code
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
Jagan Teki (2): sifive: fu540: Add sample SD gpt partition layout sifive: fu540: Add U-Boot proper sector start
Pragnesh Patel (19): 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 riscv: sifive: dts: fu540: add U-Boot dmc node clk: sifive: fu540-prci: Add clock enable and disable ops clk: sifive: fu540-prci: Add ddr clock initialization in SPL clk: sifive: fu540-prci: Add ehternet clock initialization in SPL riscv: dts: sifive: Sync hifive-unleashed-a00 dts from linux riscv: cpu: fu540: Add support for cpu fu540 riscv: Add place-holder for driver compilation riscv: sifive: fu540: add SPL configuration configs: fu540: Add config options for U-Boot SPL sifive: dts: fu540: Enable L2 Cache in U-Boot riscv: sifive: fu540: enable all cache ways from U-Boot proper doc: sifive: fu540: Add description for OpenSBI generic platform
arch/riscv/Kconfig | 1 + arch/riscv/cpu/fu540/Kconfig | 15 + arch/riscv/cpu/fu540/Makefile | 12 + arch/riscv/cpu/fu540/cache.c | 53 + arch/riscv/cpu/fu540/cpu.c | 22 + arch/riscv/cpu/fu540/dram.c | 38 + arch/riscv/cpu/fu540/spl.c | 23 + arch/riscv/cpu/u-boot-spl.lds | 1 + arch/riscv/dts/fu540-c000-u-boot.dtsi | 88 + arch/riscv/dts/fu540-c000.dtsi | 37 +- ...fu540-hifive-unleashed-a00-sdram-ddr4.dtsi | 1489 +++++++++++++++++ .../dts/hifive-unleashed-a00-u-boot.dtsi | 22 + arch/riscv/dts/hifive-unleashed-a00.dts | 9 + arch/riscv/include/asm/arch-fu540/cache.h | 14 + arch/riscv/include/asm/arch-fu540/clk.h | 14 + arch/riscv/include/asm/arch-fu540/gpio.h | 38 + arch/riscv/include/asm/arch-fu540/spl.h | 14 + board/sifive/fu540/Kconfig | 18 +- board/sifive/fu540/Makefile | 4 + board/sifive/fu540/fu540.c | 145 +- board/sifive/fu540/spl.c | 72 + common/spl/Kconfig | 3 +- configs/sifive_fu540_defconfig | 8 + doc/board/sifive/fu540.rst | 145 +- drivers/clk/sifive/fu540-prci.c | 196 ++- drivers/misc/Kconfig | 7 + drivers/misc/Makefile | 1 + drivers/misc/sifive-otp.c | 273 +++ drivers/ram/Kconfig | 1 + drivers/ram/Makefile | 2 + drivers/ram/sifive/Kconfig | 13 + drivers/ram/sifive/Makefile | 6 + drivers/ram/sifive/sdram_fu540.c | 416 +++++ include/configs/sifive-fu540.h | 31 + lib/Makefile | 2 +- 35 files changed, 3127 insertions(+), 106 deletions(-) create mode 100644 arch/riscv/cpu/fu540/Kconfig create mode 100644 arch/riscv/cpu/fu540/Makefile create mode 100644 arch/riscv/cpu/fu540/cache.c create mode 100644 arch/riscv/cpu/fu540/cpu.c create mode 100644 arch/riscv/cpu/fu540/dram.c create mode 100644 arch/riscv/cpu/fu540/spl.c create mode 100644 arch/riscv/dts/fu540-c000-u-boot.dtsi create mode 100644 arch/riscv/dts/fu540-hifive-unleashed-a00-sdram-ddr4.dtsi create mode 100644 arch/riscv/include/asm/arch-fu540/cache.h create mode 100644 arch/riscv/include/asm/arch-fu540/clk.h create mode 100644 arch/riscv/include/asm/arch-fu540/gpio.h create mode 100644 arch/riscv/include/asm/arch-fu540/spl.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