[src/uebayasi-xip]: src/sys/dev Implement mmap() entry using bus_space_mmap(9...

[uebayasi <uebayasi%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3bc93b07b017
branches:  uebayasi-xip
changeset: 751614:3bc93b07b017
user:      uebayasi <uebayasi%NetBSD.org@localhost>
date:      Sun Feb 28 04:36:27 2010 +0000

description:
Implement mmap() entry using bus_space_mmap(9).  Put a common init code.

diffstat:

 sys/dev/flash.c |  47 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 46 insertions(+), 1 deletions(-)

diffs (65 lines):

diff -r c5b636c6b845 -r 3bc93b07b017 sys/dev/flash.c
--- a/sys/dev/flash.c   Sat Feb 27 20:39:43 2010 +0000
+++ b/sys/dev/flash.c   Sun Feb 28 04:36:27 2010 +0000
@@ -1,4 +1,4 @@
-/*     $Id: flash.c,v 1.1.2.2 2010/02/24 01:19:37 uebayasi Exp $       */
+/*     $Id: flash.c,v 1.1.2.3 2010/02/28 04:36:27 uebayasi Exp $       */
 
 /*-
  * Copyright (c) 2010 Tsubai Masanari.  All rights reserved.
@@ -122,6 +122,21 @@
        return error;
 }
 
+paddr_t
+flash_mmap(dev_t dev, off_t off, int prot)
+{
+       struct flash_softc *sc = device_lookup_private(&flash_cd, minor(dev));
+
+       if (sc == NULL)
+               return -1;
+
+       if ((u_int64_t)off >= sc->sc_size)
+               return -1;
+
+       return bus_space_mmap(sc->sc_iot, sc->sc_addr, off, prot,
+           BUS_SPACE_MAP_LINEAR);
+}
+
 int
 flash_map(struct flash_softc *sc, u_long addr)
 {
@@ -194,3 +209,33 @@
 
        return sc->sc_size >> DEV_BSHIFT;
 }
+
+void
+flash_init(struct flash_softc *sc)
+{
+
+#ifdef notyet
+       if (bus_space_map(sc->sc_iot, sc->sc_addr, 0x1000, 0, &sc->sc_baseioh)) {
+               printf(": failed to map registers\n");
+               return;
+       }
+
+       if (intelflash_probe(sc) == 0)
+               goto found;
+       if (amdflash_probe(sc) == 0)
+               goto found;
+       printf(": unknown chip\n");
+       return;
+
+found:
+
+       sc->sc_program = amdflash_program_word;
+       sc->sc_eraseblk = amdflash_erase_block;
+       sc->sc_size = sc->sc_product->size;
+       printf(": %s (%dKB, %d bit/word)\n", sc->sc_product->name,
+           sc->sc_size / 1024, sc->sc_wordsize * 8);
+#endif
+
+       disk_init(&sc->sc_dkdev, device_xname(&sc->sc_dev), NULL);
+       disk_attach(&sc->sc_dkdev);
+}