In QEMU we implement a PV machine type called "ppce500". That board is able to run any e500+ FSL cores (e500v2, e500mc, e5500, e6500).
It is heavily inspired by the MPC8544DS SoC and board combination, but implements only the bare minimum to make Linux happy enough to drive a virtual machine.
This patch set implements support for this PV machine type in U-Boot, enabling users to run their virtual machines with netboot, u-boot payload binaries or other fun things they come up with.
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v1 -> v2:
- Write device tree offset directly into global variable - use r4 rather than r2 for that - access fdt directly from in-memory copy - remove unneeded header includes - clean up pci enumeration - coding style fixes - populate and only use fdt_addr_r - remove unused exported functions - remove unused TLB0 entries - make TLB1 I/O maps non-executable - remove unused defines in board header - make -kernel boot variables more clear - remove TLB0 invalidation - use tlb1.14 for temporary as=1 map - use CONFIG_SYS_MPC85XX_NO_RESETVEC - store fdt pointer in gd through cpu_init_early_f() - replace fixup_tlb1() with dynamic TLB creation hook - find CCSRBAR from device tree - find PCI controllers from device tree - find CPU speed from device tree
Alexander Graf (6): PPC 85xx: Detect e500v2 / e500mc during runtime PPC 85xx: Add ELF entry point PPC 85xx: Add qemu-ppce500 machine PPC 85xx: Find CCSRBAR on ppce500 from device tree PPC 85xx: Find PCI host controllers on ppce500 from device tree PPC 85xx: Find CPU speed on ppce500 from device tree
arch/powerpc/cpu/mpc85xx/Makefile | 2 + arch/powerpc/cpu/mpc85xx/cpu_init_early.c | 10 +- arch/powerpc/cpu/mpc85xx/fixed_ivor.S | 21 +- arch/powerpc/cpu/mpc85xx/start.S | 13 + arch/powerpc/cpu/mpc85xx/tlb.c | 4 + arch/powerpc/cpu/mpc85xx/u-boot.lds | 1 + arch/powerpc/include/asm/config_mpc85xx.h | 4 + board/freescale/qemu-ppce500/Makefile | 10 + board/freescale/qemu-ppce500/qemu-ppce500.c | 452 +++++++++++++++++++++++++++ board/freescale/qemu-ppce500/tlb.c | 16 + boards.cfg | 1 + include/configs/qemu-ppce500.h | 207 ++++++++++++ 12 files changed, 735 insertions(+), 6 deletions(-) create mode 100644 board/freescale/qemu-ppce500/Makefile create mode 100644 board/freescale/qemu-ppce500/qemu-ppce500.c create mode 100644 board/freescale/qemu-ppce500/tlb.c create mode 100644 include/configs/qemu-ppce500.h