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| author | avg <avg@FreeBSD.org> | 2016-12-14 16:30:53 +0000 |
|---|---|---|
| committer | avg <avg@FreeBSD.org> | 2016-12-14 16:30:53 +0000 |
| commit | e82165207d24ba835f93b6863c27dd4c9b50551c (patch) | |
| tree | 2b10382b2750beec94536f0c0645b16360665b45 | |
| parent | da47d73e326d7119334fd2a8c6715d757f95fc18 (diff) | |
| download | FreeBSD-src-e82165207d24ba835f93b6863c27dd4c9b50551c.zip FreeBSD-src-e82165207d24ba835f93b6863c27dd4c9b50551c.tar.gz | |
MFC r309092: fwohci: report whether PhysicalUpperBound register is implemented
| -rw-r--r-- | sys/dev/firewire/fwohci.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/dev/firewire/fwohci.c b/sys/dev/firewire/fwohci.c index ae753d5..a898e08 100644 --- a/sys/dev/firewire/fwohci.c +++ b/sys/dev/firewire/fwohci.c @@ -1874,6 +1874,16 @@ fwohci_intr_core(struct fwohci_softc *sc, uint32_t stat, int count) OWRITE(sc, OHCI_PREQLO, 0xffffffff); /* 0 to 4GB region */ OWRITE(sc, OHCI_PREQUPPER, 0x10000); + if (OREAD(sc, OHCI_PREQUPPER) != + (prequpper & 0xffffffff)) { + device_printf(fc->dev, + "PhysicalUpperBound register is not " + "implemented. Physical memory access " + "is limited to the first 4GB\n"); + device_printf(fc->dev, + "PhysicalUpperBound = 0x%08x\n", + OREAD(sc, OHCI_PREQUPPER)); + } } /* Set ATRetries register */ OWRITE(sc, OHCI_ATRETRY, 1<<(13+16) | 0xfff); |
