qi-hardware/xburst-tools
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Code

when set rUBRDIV=0x11 can output correct.

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This commit is contained in:
xiangfu 2008-07-30 13:33:24 -04:00
parent f410b994a9
commit 67335c833f
3 changed files with 5 additions and 11 deletions
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8
qiboot/src/serial.c
View File

@ -30,9 +30,6 @@ void serial_init (const int ubrdiv_val,const int uart)
case UART0: case UART0:
rULCON0 = 0x3; rULCON0 = 0x3;
rUCON0 = 0x245; rUCON0 = 0x245;
rGPHCON = rGPHCON & ~(3 << 16);
delay(1);
rGPHCON = rGPHCON & ~(3 << 16)|(1 << 17);
rUFCON0 = 0x0; rUFCON0 = 0x0;
rUMCON0 = 0x0; rUMCON0 = 0x0;
rUBRDIV0 = ubrdiv_val; rUBRDIV0 = ubrdiv_val;
@ -47,10 +44,7 @@ void serial_init (const int ubrdiv_val,const int uart)
case UART2: case UART2:
rULCON2 = 0x3; rULCON2 = 0x3;
rUCON2 = 0x245; rUCON2 = 0x245;
rGPHCON = rGPHCON & ~(3 << 16); rUFCON2 = 0x1;
delay(1);
rGPHCON = rGPHCON & ~(3 << 16)|(1 << 17);
rUFCON2 = 0x0;
rUBRDIV2 = ubrdiv_val; rUBRDIV2 = ubrdiv_val;
break; break;
default: default:

4
qiboot/src/start.S
View File

@ -89,8 +89,8 @@ start_code:
# define UPLLCON 0x4c000008 # define UPLLCON 0x4c000008
# define MPLLCON_val ((142 << 12) + (7 << 4) + 1) # define MPLLCON_val ((142 << 12) + (7 << 4) + 1)
# define UPLLCON_val (( 88 << 12) + (8 << 4) + 2) # define UPLLCON_val (( 88 << 12) + (8 << 4) + 2)
/*# define MPLLCON_val ((0x7d << 12) + (0x2 << 4) + 0x1) /* # define MPLLCON_val ((0x7d << 12) + (0x2 << 4) + 0x1)
# define UPLLCON_val ((0x38 << 12) + (0x2 << 4) + 0x2)*/ # define UPLLCON_val ((0x38 << 12) + (0x2 << 4) + 0x2) */
ldr r0, =UPLLCON ldr r0, =UPLLCON
ldr r1, =UPLLCON_val ldr r1, =UPLLCON_val

4
qiboot/src/start_kboot.c
View File

@ -40,9 +40,9 @@ unsigned char buf[2*1024];
int start_kboot(void) int start_kboot(void)
{ {
port_init(); port_init();
serial_init(0x7,UART0); serial_init(0x11,UART2);
while(1){ while(1){
serial_putc (UART0,'0'); serial_putc (UART2,'2');
blue_on(1); blue_on(1);
} }