projects / thirdparty / kernel / stable-queue.git / blame
| Commit | Line | Data |
|---|---|---|
| bdae2828 GKH |
1 | From 786842b62f81f20d14894925e8c225328ee8144b Mon Sep 17 00:00:00 2001 |
| 2 | From: Stewart Smith <stewart@linux.vnet.ibm.com> | |
| 3 | Date: Wed, 9 Dec 2015 17:18:18 +1100 | |
| 4 | Subject: powerpc/powernv: panic() on OPAL < V3 | |
| 5 | ||
| 6 | From: Stewart Smith <stewart@linux.vnet.ibm.com> | |
| 7 | ||
| 8 | commit 786842b62f81f20d14894925e8c225328ee8144b upstream. | |
| 9 | ||
| 10 | The OpenPower Abstraction Layer firmware went through a couple | |
| 11 | of iterations in the lab before being released. What we now know | |
| 12 | as OPAL advertises itself as OPALv3. | |
| 13 | ||
| 14 | OPALv2 and OPALv1 never made it outside the lab, and the possibility | |
| 15 | of anyone at all ever building a mainline kernel today and expecting | |
| 16 | it to boot on such hardware is zero. | |
| 17 | ||
| 18 | Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com> | |
| 19 | Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> | |
| 20 | Signed-off-by: Mike Galbraith <mgalbraith@suse.de> | |
| 21 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| 22 | ||
| 23 | --- | |
| 24 | arch/powerpc/platforms/powernv/opal.c | 5 +---- | |
| 25 | 1 file changed, 1 insertion(+), 4 deletions(-) | |
| 26 | ||
| 27 | --- a/arch/powerpc/platforms/powernv/opal.c | |
| 28 | +++ b/arch/powerpc/platforms/powernv/opal.c | |
| 29 | @@ -103,11 +103,8 @@ int __init early_init_dt_scan_opal(unsig | |
| 30 | powerpc_firmware_features |= FW_FEATURE_OPALv2; | |
| 31 | powerpc_firmware_features |= FW_FEATURE_OPALv3; | |
| 32 | pr_info("OPAL V3 detected !\n"); | |
| 33 | - } else if (of_flat_dt_is_compatible(node, "ibm,opal-v2")) { | |
| 34 | - powerpc_firmware_features |= FW_FEATURE_OPALv2; | |
| 35 | - pr_info("OPAL V2 detected !\n"); | |
| 36 | } else { | |
| 37 | - pr_info("OPAL V1 detected !\n"); | |
| 38 | + panic("OPAL != V3 detected, no longer supported.\n"); | |
| 39 | } | |
| 40 | ||
| 41 | /* Reinit all cores with the right endian */ |