As of today, the QEMU 'sifive_u' machine is a special target that does not boot the upstream OpenSBI/U-Boot firmware images built for the real SiFive HiFive Unleashed board. Hence OpenSBI supports a special platform "qemu/sifive_u". For U-Boot, the sifive_fu540_defconfig is referenced in the OpenSBI doc as its payload, but that does not boot at all due to various issues in current QEMU 'sifive_u' machine codes.
This series aims to improve the emulation fidelity of sifive_u machine, so that the upstream OpenSBI, U-Boot and kernel images built for the SiFive HiFive Unleashed board can be used out of the box without any special hack. The major changes are: - Heterogeneous harts creation supported, so that we can create a CPU that exactly mirrors the real hardware: 1 E51 + 4 U54. - Implemented a PRCI model for FU540 - Implemented an OTP model for FU540, primarily used for storing serial number of the board - Fixed GEM support that was seriously broken on sifive_u - Synced device tree with upstream Linux kernel on sifive_u - Adding initramfs loading support on sifive_u OpenSBI v0.4 image built for sifive/fu540 is included as the default bios image for 'sifive_u' machine. The series is tested against OpenSBI v0.4 image for sifive/fu540 paltform, U-Boot v2019.10-rc1 image for sifive_fu540_defconfig, and Linux kernel v5.3-rc3 image with the following patch: macb: Update compatibility string for SiFive FU540-C000 https://patchwork.kernel.org/patch/11050003/ OpenSBI + U-Boot, ping/tftpboot with U-Boot MACB driver works well. For Linux, only checked boot log of MACB probe success without error. Bin Meng (28): riscv: hw: Remove superfluous "linux,phandle" property riscv: hw: Use qemu_fdt_setprop_cell() for property with only 1 cell riscv: Add a sifive_cpu.h to include both E and U cpu type defines riscv: hart: Extract hart realize to a separate routine riscv: hart: Support heterogeneous harts population riscv: sifive_u: Update hart configuration to reflect the real FU540 SoC riscv: sifive_u: Set the minimum number of cpus to 2 riscv: sifive_u: Update PLIC hart topology configuration string riscv: sifive_u: Update UART base addresses riscv: sifive_u: Remove the unnecessary include of prci header riscv: sifive: Rename sifive_prci.{c,h} to sifive_e_prci.{c,h} riscv: sifive_e: prci: Fix a typo of hfxosccfg register programming riscv: sifive_e: prci: Update the PRCI register block size riscv: sifive: Implement PRCI model for FU540 riscv: sifive_u: Generate hfclk and rtcclk nodes riscv: sifive_u: Add PRCI block to the SoC riscv: sifive_u: Change UART node name in device tree riscv: hw: Implement a model for SiFive FU540 OTP riscv: sifive_u: Instantiate OTP memory with a serial number riscv: roms: Update default bios for sifive_u machine riscv: sifive_u: Update UART and ethernet node clock properties riscv: sifive_u: Generate an aliases node in the device tree riscv: sifive: Move sifive_mmio_emulate() to a common place riscv: sifive_u: Fix broken GEM support riscv: sifive_u: Support loading initramfs riscv: hw: Update PLIC device tree riscv: virt: Change create_fdt() to return void riscv: sifive_u: Update model and compatible strings in device tree hw/riscv/Makefile.objs | 4 +- hw/riscv/riscv_hart.c | 75 ++++++-- hw/riscv/sifive_e.c | 12 +- hw/riscv/{sifive_prci.c => sifive_e_prci.c} | 16 +- hw/riscv/sifive_u.c | 181 +++++++++++++------ hw/riscv/sifive_u_otp.c | 194 +++++++++++++++++++++ hw/riscv/sifive_u_prci.c | 163 +++++++++++++++++ hw/riscv/virt.c | 42 ++--- include/hw/riscv/sifive_cpu.h | 39 +++++ include/hw/riscv/sifive_e.h | 7 +- .../hw/riscv/{sifive_prci.h => sifive_e_prci.h} | 16 +- include/hw/riscv/sifive_u.h | 15 +- include/hw/riscv/sifive_u_otp.h | 90 ++++++++++ include/hw/riscv/sifive_u_prci.h | 100 +++++++++++ pc-bios/opensbi-riscv64-sifive_u-fw_jump.bin | Bin 40968 -> 45064 bytes roms/Makefile | 4 +- 16 files changed, 824 insertions(+), 134 deletions(-) rename hw/riscv/{sifive_prci.c => sifive_e_prci.c} (88%) create mode 100644 hw/riscv/sifive_u_otp.c create mode 100644 hw/riscv/sifive_u_prci.c create mode 100644 include/hw/riscv/sifive_cpu.h rename include/hw/riscv/{sifive_prci.h => sifive_e_prci.h} (80%) create mode 100644 include/hw/riscv/sifive_u_otp.h create mode 100644 include/hw/riscv/sifive_u_prci.h -- 2.7.4