Remove dead POWER7 code

There are a number of proc_gen branches removed that are trivially
dead code and comments that refer to P7. As well as those:

- Oliver points out that add_xics_icps() must be unused on POWER8
  because it asserts if number of threads > 4, so remove it.

- Change 16b7ae641 ("Remove POWER7 and POWER7+ support") removed all
  references to opal_boot_trampoline, so remove that.

- It also removed the only non-trival choose_bus implementation, so
  that is removed and its caller simplified.

- Remove the paca code, later CPUs use pcia.

Cc: Stewart Smith <stewart@flamingspork.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/hw/slw.c b/hw/slw.c
index e460f15..566a112 100644
--- a/hw/slw.c
+++ b/hw/slw.c
@@ -1061,9 +1061,6 @@ int64_t slw_reinit(uint64_t flags)
 	bool has_waker = false;
 	bool target_le = slw_current_le;
 
-	if (proc_gen < proc_gen_p8)
-		return OPAL_UNSUPPORTED;
-
 	if (flags & OPAL_REINIT_CPUS_HILE_BE)
 		target_le = false;
 	if (flags & OPAL_REINIT_CPUS_HILE_LE)