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| H A D | sbc8548.h | af35be6ac962a737005737ab479da93cac2f596f Sat Dec 31 04:53:06 UTC 2011 Paul Gortmaker <paul.gortmaker@windriver.com> Revert "SBC8548: fix address mask to allow 64M flash"
This reverts commit ccf1ad535ae1c0dc2d466235c668adbdfe3a55b7.
The commit "SBC8548: fix address mask to allow 64M flash"
essentially made this change:
* OR6:
- * Addr Mask = 64M = OR6[0:16] = 1111 1100 0000 0000 0
+ * Addr Mask = 64M = OR6[0:16] = 1111 1000 0000 0000 0
But this makes no sense, as section 13.3.1.2.1 in the
MPC8548ERM v2 clearly indicates the masks:
1111_1111_1000_0000_0 8 Mbytes
1111_1100_0000_0000_0 64 Mbytes
1111_1000_0000_0000_0 128 Mbytes
So the original value was correct, and the commit was invalid,
causing a 128MB mapping for a 64MB flash device. The problem
rears its head when trying to configure u-boot to have access
to both flash, since the default memory map is:
FB80_0000 – FF7F_FFFF 32-bits 64MB FLASH SODIMM
FF80_0000 – FFFF_FFFF 8-bits 8MB FLASH
By extending the mapping of the 64MB flash to 128MB, it now
conflicts with the normal 8MB boot flash, causing issues.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
ccf1ad535ae1c0dc2d466235c668adbdfe3a55b7 Fri May 02 20:10:04 UTC 2008 Jeremy McNicoll <jeremy.mcnicoll@windriver.com> SBC8548: fix address mask to allow 64M flash
Fix incorrect mask to enable all 64MB of onboard flash.
Previously U-Boot incorrectly mapped only 8MB of flash, this
patch correctly maps all the available flash.
Signed-off-by: Jeremy McNicoll <jeremy.mcnicoll@windriver.com>
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