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, 1 insertions, 9 deletions

diff --git a/hw/xscom.c b/hw/xscom.c
index 9b28422..f3f4e10 100644
--- a/hw/xscom.c
+++ b/hw/xscom.c
@@ -61,7 +61,7 @@ static inline void *xscom_addr(uint32_t gcid, uint32_t pcb_addr)
 
 	assert(chip);
 	addr  = chip->xscom_base;
-	if (proc_gen <= proc_gen_p8) {
+	if (proc_gen == proc_gen_p8) {
 		addr |= ((uint64_t)pcb_addr << 4) & ~0xfful;
 		addr |= (pcb_addr << 3) & 0x78;
 	} else
@@ -432,11 +432,6 @@ static int xscom_indirect_read_form0(uint32_t gcid, uint64_t pcb_addr,
 	uint64_t data;
 	int rc, retries;
 
-	if (proc_gen < proc_gen_p8) {
-		*val = (uint64_t)-1;
-		return OPAL_UNSUPPORTED;
-	}
-
 	/* Write indirect address */
 	addr = pcb_addr & 0x7fffffff;
 	data = XSCOM_DATA_IND_READ |
@@ -491,9 +486,6 @@ static int xscom_indirect_write_form0(uint32_t gcid, uint64_t pcb_addr,
 	uint64_t data;
 	int rc, retries;
 
-	if (proc_gen < proc_gen_p8)
-		return OPAL_UNSUPPORTED;
-
 	/* Only 16 bit data with indirect */
 	if (val & ~(XSCOM_ADDR_IND_DATA))
 		return OPAL_PARAMETER;