diff options
Diffstat (limited to 'c/src/lib/libbsp/i386/i386ex/start/start.s')
| -rw-r--r-- | c/src/lib/libbsp/i386/i386ex/start/start.s | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/c/src/lib/libbsp/i386/i386ex/start/start.s b/c/src/lib/libbsp/i386/i386ex/start/start.s index f24f45abd6..e8cbc71b9c 100644 --- a/c/src/lib/libbsp/i386/i386ex/start/start.s +++ b/c/src/lib/libbsp/i386/i386ex/start/start.s @@ -44,6 +44,8 @@ changes: * #define NEXT_GAS */ +#define NEXT_GAS + EXTERN (boot_card) /* exits to bspstart */ EXTERN (stack_start) /* defined in startup/linkcmds */ EXTERN (Clock_exit) @@ -149,14 +151,13 @@ SYM(InitRCU): /* * Initialize clock and power mgmt unit for: * Clock Frequency = 50 Mhz - * Prescaled clock output = 1.19318 Mhz - * ( matches standard PC ) + * Prescaled clock output = 1 Mhz * Normal halt instructions */ SYM(InitClk): SetExRegByte( PWRCON, 0x0 ) - SetExRegWord( CLKPRS, 0x13) + SetExRegWord( CLKPRS, 0x17) # 0x13 for 1.19318 MHz. 0x17 for 1MHz. /************************************************************** * Initialize the Pin Configurations @@ -274,21 +275,19 @@ SYM(InitTimer): # and 2 are set to Vcc SetExRegByte(TMRCON , 0x34 ) # prepare to write counter 0 LSB,MSB - SetExRegByte(TMR0 , 0xA8 ) # LSB = 0B count, followed by MSB - SetExRegByte(TMR0 , 0x04 ) # for INT every 50 msec. MSB = 0xE900 - # for INT every 5 msec. 0x174c - # for INT every 1 msec. 0x04A8 - # was 0xe900 - + SetExRegByte(TMR0 , 0x00 ) # sfa + SetExRegByte(TMR0 , 0x00 ) # sfa + + SetExRegByte(TMRCON , 0x70 ) # mode 0 disables on Gate= Vcc SetExRegByte(TMR1 , 0x00 ) # sfa SetExRegByte(TMR1 , 0x00 ) # sfa SetExRegByte(TMRCON , 0xB0 ) # mode 0 disables on gate =Vcc SetExRegByte(TMR2 , 0x00 ) # - SetExRegByte(TMR2 , 0x00 ) # - SetExRegByte(TMRCFG , 0x80 ) # Enable timers = 0x00 - + SetExRegByte(TMR2 , 0x00 ) # + + SetExRegByte(TMRCFG , 0x80 ) # Enable = 0x00 /* * Initialize the DMACFG register for: |