[openfirmware] [commit] r2563 - cpu/arm/mmp2
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svn at openfirmware.info
Sat Oct 1 21:53:09 CEST 2011
Author: wmb
Date: Sat Oct 1 21:53:08 2011
New Revision: 2563
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2563
Log:
OLPC XO-1.75 - commented-out ODT turn off/on in self-refresh code; appears to be unnecessary based on testing of q4b10mp.rom .
Modified:
cpu/arm/mmp2/dramrecal.fth
Modified: cpu/arm/mmp2/dramrecal.fth
==============================================================================
--- cpu/arm/mmp2/dramrecal.fth Sat Oct 1 21:51:55 2011 (r2562)
+++ cpu/arm/mmp2/dramrecal.fth Sat Oct 1 21:53:08 2011 (r2563)
@@ -62,9 +62,11 @@
mov r1, #0x1 \ Block all data requests
str r1, [r0, #0x7e0] \ SDRAM_CTRL14
+[ifdef] notdef2
ldr r2, [r0, #0x770] \ SDRAM_CTRL7_SDRAM_ODT_CTRL2
orr r1, r2, #0x03000000 \ PAD_TERM_SWITCH_MODE: Termination disabled
str r1, [r0, #0x770] \ SDRAM_CTRL7_SDRAM_ODT_CTRL2
+[then]
mov r1, #0x40 \ Enter Self Refresh value
str r1, [r0, #0x120] \ USER_INITIATED_COMMAND0
@@ -87,7 +89,9 @@
mov r1, #0x80 \ Exit Self Refresh value
str r1, [r0, #0x120] \ USER_INITIATED_COMMAND0
+[ifdef] notdef2
str r2, [r0, #0x770] \ SDRAM_CTRL7_SDRAM_ODT_CTRL2 - restore previous value
+[then]
[ifdef] notdef
mov r1, #0x01000000 \ Chip select 0
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