The existing upstream kernel doesn't boot for non-smp configuration. This patch series address various issues with non-smp configurations.
The patch series is based on 5.0-rc7 + Johan's below mentioned patch series. Tested on both QEMU and HiFive Unleashed board using both OpenSBI & BBL. https://lore.kernel.org/lkml/20190118140308.9599-1-jo...@kernel.org/ Changes from v5->v6 1. Dropped driver patches as they have been accepted via drivers tree. Changes from v4->v5 1. Continue processing other harts even if isa string is incorrect for a single hart during HWCAP processing. Changes from v3->v4 1. Fixed commit text length issues. 2. Updated hwcap patch to use common capabilities of all harts. 3. Rebased on Johan's patch series. Changes from v2->v3 1. Fixed spurious white space. 2. Added lockdep for smpboot completion variable. 2. Added a sanity check for hwcap. Changes from v1->v2 1. Move the cpuid to hartid map to smp.c from setup.c 2. Split 3rd patch into several small patches based on logical grouping. 3. Added a new patch that fixes an issue in hwcap query. 4. Changed the title of the patch series. Atish Patra (6): RISC-V: Do not wait indefinitely in __cpu_up RISC-V: Move cpuid to hartid mapping to SMP. RISC-V: Remove NR_CPUs check during hartid search from DT RISC-V: Allow hartid-to-cpuid function to fail. RISC-V: Compare cpuid with NR_CPUS before mapping. RISC-V: Assign hwcap as per comman capabilities. arch/riscv/include/asm/smp.h | 18 +++++++++++++----- arch/riscv/kernel/cpu.c | 4 ---- arch/riscv/kernel/cpufeature.c | 41 ++++++++++++++++++++++------------------- arch/riscv/kernel/setup.c | 9 --------- arch/riscv/kernel/smp.c | 10 +++++++++- arch/riscv/kernel/smpboot.c | 20 +++++++++++++++++--- 6 files changed, 61 insertions(+), 41 deletions(-) -- 2.7.4