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Currently, the generic platform fw_platform_init() marks non-MMU HARTs (e.g. E-core on SiFive Unleashed) as invalid. This means such non-MMU HARTs won't be allowed to go ahead by sbi_init(). The sbi_init() now has a check for next stage privilege mode when selecting coldboot HART. This check will force non-MMU HARTS (i.e. HARTs without S-mode) to proceed in warmboot path and wait in the HSM STOPPED state. This means we don't need to mark non-MMU HARTs as invalid in generic platform fw_platform_init(). Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>