Changeset 3412

Timestamp:

Nov 2, 2012 11:34:51 PM (7 months ago)

Author:

wmb

Message:

OLPC XO-4 - Trac #12169 - Reconnect eMMC signals prior to starting Linux, and ensure adequate off time.

Location:

cpu/arm/olpc

Files:

• build-fw.fth (modified) (1 diff)
• sdhci.fth (modified) (1 diff)

cpu/arm/olpc/build-fw.fth

@@ -580 +580 @@
 \ This must precede the loading of gui.fth, which chains from linux-hook's behavior
 ' quiesce to linux-hook
+
+[ifdef] olpc-cl4
+: linux-hook-emmc  ( -- )
+   [ ' linux-hook behavior compile, ]  \ Chain to old behavior
+   connect-emmc
+;
+' linux-hook-emmc to linux-hook
+[then]
 
 \ This must be defined after spiui.fth, otherwise spiui will choose some wrong code

cpu/arm/olpc/sdhci.fth

@@ -13 +13 @@
    1 " #size-cells" integer-property
 
-   d# 1 to power-off-time  \ A2 and A3 have turn-off clamps
+   d# 30 to power-off-time   \ Time for the voltage to decay
 \   true to avoid-high-speed?