diff options
| author | Anup Patel <anup.patel@wdc.com> | 2020-09-09 13:54:03 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-09-16 09:05:31 +0530 |
| commit | aaeca7eb4efa96cfde3973f425a6769b50285756 (patch) | |
| tree | eea2e688fac58419ebf2a06270e922a22262f5e3 | |
| parent | 172fa1601c7faaa01c547e8c498f5bdefd52d7cb (diff) | |
platform: generic: Don't mark non-MMU HARTs as invalid
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>
| -rw-r--r-- | platform/generic/platform.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/platform/generic/platform.c b/platform/generic/platform.c index c3cf423..d902e71 100644 --- a/platform/generic/platform.c +++ b/platform/generic/platform.c @@ -71,7 +71,7 @@ unsigned long fw_platform_init(unsigned long arg0, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4) { - const char *model, *mmu_type; + const char *model; void *fdt = (void *)arg1; u32 hartid, hart_count = 0; int rc, root_offset, cpus_offset, cpu_offset, len; @@ -101,10 +101,6 @@ unsigned long fw_platform_init(unsigned long arg0, unsigned long arg1, if (SBI_HARTMASK_MAX_BITS <= hartid) continue; - mmu_type = fdt_getprop(fdt, cpu_offset, "mmu-type", &len); - if (!mmu_type || !len) - hartid = -1U; - generic_hart_index2id[hart_count++] = hartid; } |