diff options
Diffstat (limited to 'arch/powerpc/platforms/powermac/udbg_scc.c')
| -rw-r--r-- | arch/powerpc/platforms/powermac/udbg_scc.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/powermac/udbg_scc.c b/arch/powerpc/platforms/powermac/udbg_scc.c index 47de4d3fc16..d83135a9830 100644 --- a/arch/powerpc/platforms/powermac/udbg_scc.c +++ b/arch/powerpc/platforms/powermac/udbg_scc.c @@ -1,5 +1,5 @@ /* - * udbg for for zilog scc ports as found on Apple PowerMacs + * udbg for zilog scc ports as found on Apple PowerMacs * * Copyright (C) 2001-2005 PPC 64 Team, IBM Corp * @@ -125,13 +125,23 @@ void udbg_scc_init(int force_scc) out_8(sccc, 0xc0); /* If SCC was the OF output port, read the BRG value, else - * Setup for 57600 8N1 + * Setup for 38400 or 57600 8N1 depending on the machine */ if (ch_def != NULL) { out_8(sccc, 13); scc_inittab[1] = in_8(sccc); out_8(sccc, 12); scc_inittab[3] = in_8(sccc); + } else if (of_machine_is_compatible("RackMac1,1") + || of_machine_is_compatible("RackMac1,2") + || of_machine_is_compatible("MacRISC4")) { + /* Xserves and G5s default to 57600 */ + scc_inittab[1] = 0; + scc_inittab[3] = 0; + } else { + /* Others default to 38400 */ + scc_inittab[1] = 0; + scc_inittab[3] = 1; } for (i = 0; i < sizeof(scc_inittab); ++i) |