dragon-nx32: spi.s: Use macro defines for 65SPI flags

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>

diff --git a/Kernel/platform-dragon-nx32/spi.s b/Kernel/platform-dragon-nx32/spi.s
index 23104a8..3cde75d 100644 (file)
--- a/Kernel/platform-dragon-nx32/spi.s
+++ b/Kernel/platform-dragon-nx32/spi.s
@@ -6,7 +6,6 @@
 
        .globl _spi_setup
        .globl _sd_spi_clock
-       .globl _sds_spi_transmit_byte
        .globl _sd_spi_lower_cs
        .globl _sd_spi_raise_cs
        .globl _sd_spi_transmit_byte
@@ -19,6 +18,10 @@
         include "kernel.def"
         include "../kernel09.def"
 
+; 65SPI control flags
+FRX    equ 0x10                ; Fast Receive mode
+ECE    equ 0x04                ; External Clock Enable
+
        .area .text
 
 _spi_setup:
@@ -47,7 +50,7 @@ spigood:
 _sd_spi_clock:
        cmpb #0                 
        beq slow
-       ldd #0x0401             ; external 45MHz clock on, divide by 4
+       ldd #ECE*256+0x01       ; external 45MHz clock on, divide by 4
        bra clkset
 slow:  ldd #0x0000             ; internal clock, phi/2 -> 0.89MHz/2 = 445kHz
 clkset:        std SPICTRL
@@ -109,7 +112,7 @@ _sd_spi_receive_sector:
        lda _blk_op+2
        beq rdspi
        jsr map_process_always
-rdspi: lda #0x14               ; FRX on, external clock on
+rdspi: lda #ECE+FRX            ; FRX on, external clock on
        sta <SPICTRL
        lda <SPIDATA            ; read old value, triggers shifting in new
 read8:
@@ -128,7 +131,7 @@ read8:
        cmpx endspi
        bne read8
        jsr map_kernel
-       lda #0x04
+       lda #ECE
        sta <SPICTRL            ; FRX off, external clock on
        puls y,dp,pc
 
@@ -142,7 +145,7 @@ _sd_spi_transmit_sector:
        lda _blk_op+2
        beq wrspi
        jsr map_process_always
-wrspi: lda #0x04               ; ext clock, no FRX
+wrspi: lda #ECE                ; ext clock, no FRX
        sta SPICTRL
 write8:
        ldd ,x++