Author: adrian
Date: Thu Feb 4 22:39:27 2016
New Revision: 295284
URL: https://svnweb.freebsd.org/changeset/base/295284
Log:
Provide a workaround for setting the correct endianness when doing CFI on
a mips big-endian board.
This is (hopefully! ish!) a temporary change until a slightly better way
can be found to express this without a config option.
Tested:
* BUFFALO WZR-HP-G300NH 1stGen (by submitter)
Submitted by: Mori Hiroki <yamori...@yahoo.co.jp>
Modified:
head/sys/conf/options
head/sys/dev/cfi/cfi_core.c
Modified: head/sys/conf/options
==============================================================================
--- head/sys/conf/options Thu Feb 4 21:46:37 2016 (r295283)
+++ head/sys/conf/options Thu Feb 4 22:39:27 2016 (r295284)
@@ -918,6 +918,7 @@ VNET_DEBUG opt_global.h
# Common Flash Interface (CFI) options
CFI_SUPPORT_STRATAFLASH opt_cfi.h
CFI_ARMEDANDDANGEROUS opt_cfi.h
+CFI_HARDWAREBYTESWAP opt_cfi.h
# Sound options
SND_DEBUG opt_snd.h
Modified: head/sys/dev/cfi/cfi_core.c
==============================================================================
--- head/sys/dev/cfi/cfi_core.c Thu Feb 4 21:46:37 2016 (r295283)
+++ head/sys/dev/cfi/cfi_core.c Thu Feb 4 22:39:27 2016 (r295284)
@@ -99,11 +99,17 @@ cfi_read(struct cfi_softc *sc, u_int ofs
break;
case 2:
sval = bus_space_read_2(sc->sc_tag, sc->sc_handle, ofs);
+#ifdef CFI_HARDWAREBYTESWAP
+ val = sval;
+#else
val = le16toh(sval);
+#endif
break;
case 4:
val = bus_space_read_4(sc->sc_tag, sc->sc_handle, ofs);
+#ifndef CFI_HARDWAREBYTESWAP
val = le32toh(val);
+#endif
break;
default:
val = ~0;
@@ -122,10 +128,19 @@ cfi_write(struct cfi_softc *sc, u_int of
bus_space_write_1(sc->sc_tag, sc->sc_handle, ofs, val);
break;
case 2:
+#ifdef CFI_HARDWAREBYTESWAP
+ bus_space_write_2(sc->sc_tag, sc->sc_handle, ofs, val);
+#else
bus_space_write_2(sc->sc_tag, sc->sc_handle, ofs, htole16(val));
+
+#endif
break;
case 4:
+#ifdef CFI_HARDWAREBYTESWAP
+ bus_space_write_4(sc->sc_tag, sc->sc_handle, ofs, val);
+#else
bus_space_write_4(sc->sc_tag, sc->sc_handle, ofs, htole32(val));
+#endif
break;
}
}
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