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diff src/cs/system/main/init.asm @ 168:aa2956979fcb

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src/cs/system: MEMIF and init updates from Magnetite
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 19 Jun 2019 04:05:38 +0000
parents 1eb391057168
children
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--- a/src/cs/system/main/init.asm	Wed Jun 19 03:57:35 2019 +0000
+++ b/src/cs/system/main/init.asm	Wed Jun 19 04:05:38 2019 +0000
@@ -170,9 +170,19 @@
 
   .elseif BOARD = 41
 
+; FreeCalypso change, please see MEMIF-wait-states document
+; in the freecalypso-docs repository for the explanation.
+
+    .if VCXO_26MHZ = 1
+CS0_MEM_REG   .short  0x2a2  ; 1 Dummy Cycle 16 bit 2 WS SW BP enable
+CS1_MEM_REG   .short  0x2a2  ; 1 Dummy Cycle 16 bit 2 WS SW BP enable
+CS2_MEM_REG   .short  0x2a2  ; 1 Dummy Cycle 16 bit 2 WS SW BP enable
+    .else
 CS0_MEM_REG   .short  0x2a1  ; 1 Dummy Cycle 16 bit 1 WS SW BP enable
 CS1_MEM_REG   .short  0x2a1  ; 1 Dummy Cycle 16 bit 1 WS SW BP enable
 CS2_MEM_REG   .short  0x2a1  ; 1 Dummy Cycle 16 bit 1 WS SW BP enable
+    .endif
+
 CS3_MEM_REG   .short  0x283  ; 1 Dummy Cycle  8 bit 3 WS SW BP enable
 CS4_MEM_REG   .short  0xe85  ; default reset value