On Sep 8, 2006, at 10:40 AM, Hollis Blanchard wrote:
On Fri, 2006-09-08 at 02:10 +, Xen patchbot-xenppc-unstable wrote:
+static inline ulong read_scom(ulong addr)
+{
+union scomc c;
+ulong d;
+
+c.word = 0;
+c.bits.addr = addr;
+c.bits.RW = 0;
Shouldn't RW = 1 for a read request?
good point/catch, the supporting text says (11.6.3 SCOMD Format):
"It is the source for outgoing data during an SCOM write access
(SCOMC[RW] =‘1’ when mtscomc is issued). It is the destination for
incoming data after an SCOMC read access (SCOMC[RW]=‘0’ after mtscomc
completes)."
However in Table 11-15 SCOMC[48]:
0 Write request
1 Read request
I'll get the facts.
-JX
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