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authorHauke Mehrtens <hauke@hauke-m.de>2012-09-29 20:33:51 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-10-19 15:52:37 -0400
commite661b75a44cc811426ea005c3cb858e45bd73d57 (patch)
tree504565efbb8010462b0d8d511000096dceffe4a0
parentcc787081bcab5a83051c2a936927634d066e7284 (diff)
downloadblackbird-op-linux-e661b75a44cc811426ea005c3cb858e45bd73d57.tar.gz
blackbird-op-linux-e661b75a44cc811426ea005c3cb858e45bd73d57.zip
bcma: mark nflash if it is the boot flash
There are some devices which are able to boot from nand flash and other are using a serial flash for booting. Add a bool to indicate that the device is booted from that flash chip and not from some other chip also connected to the SoC. This is needed to find the nvram, as it is stored on the flash the devices booted from. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/bcma/driver_chipcommon_nflash.c3
-rw-r--r--include/linux/bcma/bcma_driver_chipcommon.h1
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/bcma/driver_chipcommon_nflash.c b/drivers/bcma/driver_chipcommon_nflash.c
index 9042781edec3..dbda91e4dff5 100644
--- a/drivers/bcma/driver_chipcommon_nflash.c
+++ b/drivers/bcma/driver_chipcommon_nflash.c
@@ -32,6 +32,9 @@ int bcma_nflash_init(struct bcma_drv_cc *cc)
}
cc->nflash.present = true;
+ if (cc->core->id.rev == 38 &&
+ (cc->status & BCMA_CC_CHIPST_5357_NAND_BOOT))
+ cc->nflash.boot = true;
/* Prepare platform device, but don't register it yet. It's too early,
* malloc (required by device_private_init) is not available yet. */
diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h
index 79993969953a..145f3c56227f 100644
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -533,6 +533,7 @@ struct mtd_info;
struct bcma_nflash {
bool present;
+ bool boot; /* This is the flash the SoC boots from */
struct mtd_info *mtd;
};
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