powerpc/powernv: panic() on OPAL < V3

The OpenPower Abstraction Layer firmware went through a couple
of iterations in the lab before being released. What we now know
as OPAL advertises itself as OPALv3.

OPALv2 and OPALv1 never made it outside the lab, and the possibility
of anyone at all ever building a mainline kernel today and expecting
it to boot on such hardware is zero.

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 4296d55e88f30afa7cb91fd54d06e6b2a532d577..faea1abaa785934b76c2872290e419fcf34f9c78 100644 (file)
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -103,11 +103,8 @@ int __init early_init_dt_scan_opal(unsigned long node,
                powerpc_firmware_features |= FW_FEATURE_OPALv2;
                powerpc_firmware_features |= FW_FEATURE_OPALv3;
                pr_info("OPAL V3 detected !\n");
-       } else if (of_flat_dt_is_compatible(node, "ibm,opal-v2")) {
-               powerpc_firmware_features |= FW_FEATURE_OPALv2;
-               pr_info("OPAL V2 detected !\n");
        } else {
-               pr_info("OPAL V1 detected !\n");
+               panic("OPAL != V3 detected, no longer supported.\n");
        }
 
        /* Reinit all cores with the right endian */