FreeCalypso > hg > fc-magnetite
changeset 604:a7ed7d4483b0
main assembly boot path code: MEMIF change for 26 MHz targets
as explained in the MEMIF-wait-states document
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Mon, 17 Jun 2019 02:11:17 +0000 |
| parents | b13731665274 |
| children | 07d0dc4431f4 |
| files | components/main components/main-init src/cs/system/main/init.asm |
| diffstat | 3 files changed, 24 insertions(+), 0 deletions(-) [+] |
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--- a/components/main Mon Jun 17 01:36:38 2019 +0000 +++ b/components/main Mon Jun 17 02:11:17 2019 +0000 @@ -77,4 +77,11 @@ ASMFLAGS="$ASMFLAGS -dC155_TARGET=0" fi +if [ "$RF" = 12 ] +then + ASMFLAGS="$ASMFLAGS -dVCXO_26MHZ=1" +else + ASMFLAGS="$ASMFLAGS -dVCXO_26MHZ=0" +fi + asm_file $SRCDIR/int.s
--- a/components/main-init Mon Jun 17 01:36:38 2019 +0000 +++ b/components/main-init Mon Jun 17 02:11:17 2019 +0000 @@ -85,4 +85,11 @@ ASMFLAGS="$ASMFLAGS -dC155_TARGET=0" fi +if [ "$RF" = 12 ] +then + ASMFLAGS="$ASMFLAGS -dVCXO_26MHZ=1" +else + ASMFLAGS="$ASMFLAGS -dVCXO_26MHZ=0" +fi + asm_file $SRCDIR/int.s
--- a/src/cs/system/main/init.asm Mon Jun 17 01:36:38 2019 +0000 +++ b/src/cs/system/main/init.asm Mon Jun 17 02:11:17 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