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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2011-05-10 23:31:30 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-05-19 09:55:47 +0100 |
| commit | b3ae52b6b0335eba547221aad2cb3c50902e3d2d (patch) | |
| tree | b7901a68a97fc73e6e711828f93ec8dbcca5722d /drivers/ssb/pci.c | |
| parent | b7f720d68c0042cc8ce496e31a61df79a77f1b48 (diff) | |
| download | lwn-b3ae52b6b0335eba547221aad2cb3c50902e3d2d.tar.gz lwn-b3ae52b6b0335eba547221aad2cb3c50902e3d2d.zip | |
SSB: Change fallback sprom to callback mechanism.
Some embedded devices like the Netgear WNDR3300 have two SSB based cards
without an own sprom on the pci bus. We have to provide two different
fallback sproms for these and this was not possible with the old solution.
In the bcm47xx architecture the sprom data is stored in the nvram in the
main flash storage. The architecture code will be able to fill the sprom
with the stored data based on the bus where the device was found.
The bcm63xx code should do the same thing as before, just using the new
API.
Acked-by: Michael Buesch <mb@bu3sch.de>
Cc: netdev@vger.kernel.org
Cc: linux-wireless@vger.kernel.org
Cc: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2362/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers/ssb/pci.c')
| -rw-r--r-- | drivers/ssb/pci.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c index 6f34963b3c64..7ad48585c5e6 100644 --- a/drivers/ssb/pci.c +++ b/drivers/ssb/pci.c @@ -662,7 +662,6 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out, static int ssb_pci_sprom_get(struct ssb_bus *bus, struct ssb_sprom *sprom) { - const struct ssb_sprom *fallback; int err; u16 *buf; @@ -707,10 +706,17 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus, if (err) { /* All CRC attempts failed. * Maybe there is no SPROM on the device? - * If we have a fallback, use that. */ - fallback = ssb_get_fallback_sprom(); - if (fallback) { - memcpy(sprom, fallback, sizeof(*sprom)); + * Now we ask the arch code if there is some sprom + * available for this device in some other storage */ + err = ssb_fill_sprom_with_fallback(bus, sprom); + if (err) { + ssb_printk(KERN_WARNING PFX "WARNING: Using" + " fallback SPROM failed (err %d)\n", + err); + } else { + ssb_dprintk(KERN_DEBUG PFX "Using SPROM" + " revision %d provided by" + " platform.\n", sprom->revision); err = 0; goto out_free; } |