From b2385c1538cd1ba6a468feefcf1cd90dae6b1871 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@openwrt.org>
Date: Sun, 30 Sep 2012 11:45:31 +0000
Subject: [brcm47xx]: bcma: use fallback sprom if sprom on card was not valid

Sometimes the PCIe card indicates that it has a sprom somewhere and we
are able to read the memory region, but it is empty and not valid. In
these cases we should try to use the fallback sprom as a last chance.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33601 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 ...-use-fallback-sprom-if-sprom-on-card-was-not-val.patch | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 target/linux/brcm47xx/patches-3.3/203-bcma-use-fallback-sprom-if-sprom-on-card-was-not-val.patch

(limited to 'target')

diff --git a/target/linux/brcm47xx/patches-3.3/203-bcma-use-fallback-sprom-if-sprom-on-card-was-not-val.patch b/target/linux/brcm47xx/patches-3.3/203-bcma-use-fallback-sprom-if-sprom-on-card-was-not-val.patch
new file mode 100644
index 0000000000..b6e6480567
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.3/203-bcma-use-fallback-sprom-if-sprom-on-card-was-not-val.patch
@@ -0,0 +1,15 @@
+--- a/drivers/bcma/sprom.c
++++ b/drivers/bcma/sprom.c
+@@ -591,8 +591,11 @@ int bcma_sprom_get(struct bcma_bus *bus)
+ 		bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true);
+ 
+ 	err = bcma_sprom_valid(sprom);
+-	if (err)
++	if (err) {
++		bcma_warn(bus, "invalid sprom read from the PCIe card, try to use fallback sprom\n");
++		err = bcma_fill_sprom_with_fallback(bus, &bus->sprom);
+ 		goto out;
++	}
+ 
+ 	bcma_sprom_extract_r8(bus, sprom);
+ 
-- 
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