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-rw-r--r--arch/m68k/mac/config.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 12e564c6295..101a8b7e2d5 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -893,8 +893,14 @@ static void __init mac_identify(void)
scc_b_rsrcs[1].start = scc_b_rsrcs[1].end = IRQ_MAC_SCC_B;
break;
default:
- scc_a_rsrcs[1].start = scc_a_rsrcs[1].end = IRQ_MAC_SCC;
- scc_b_rsrcs[1].start = scc_b_rsrcs[1].end = IRQ_MAC_SCC;
+ /* On non-PSC machines, the serial ports share an IRQ. */
+ if (macintosh_config->ident == MAC_MODEL_IIFX) {
+ scc_a_rsrcs[1].start = scc_a_rsrcs[1].end = IRQ_MAC_SCC;
+ scc_b_rsrcs[1].start = scc_b_rsrcs[1].end = IRQ_MAC_SCC;
+ } else {
+ scc_a_rsrcs[1].start = scc_a_rsrcs[1].end = IRQ_AUTO_4;
+ scc_b_rsrcs[1].start = scc_b_rsrcs[1].end = IRQ_AUTO_4;
+ }
break;
}