?? u-boot在44b0x開發板上的移植以及代碼分析.mht
字號:
=
_start<BR>_start:<BR>=D6=B5=B5=C3=D7=A2=D2=E2=B5=C4=CA=C7=C4=E3=B1=D8=D0=EB=
=B8=E6=CB=DF=B1=E0=D2=EB=C6=F7=D6=AA=B5=C0=D5=E2=B8=F6=C8=EB=BF=DA=A3=AC=D5=
=E2=B8=F6=B9=A4=D7=F7=D6=F7=D2=AA=CA=C7=D0=DE=B8=C4=C1=AC=BD=D3=C6=F7=BD=C5=
=B1=BE=CE=C4=BC=FE=A3=A8lds=A3=A9=A1=A3<BR>=BF=AA=B7=A2=B0=E5=C9=CF=B5=C4=
u-boot.lds=C8=E7=CF=C2=A3=BA<BR><BR>OUTPUT_FORMAT("elf32-littlearm",=20
"elf32-littlearm",=20
=
"elf32-littlearm")<BR>OUTPUT_ARCH(arm)<BR>ENTRY(_start)<BR>SECTIONS<BR>{<=
BR>.=20
=3D 0x00000000;<BR><BR>. =3D ALIGN(4);<BR>.text =
:<BR>{<BR>cpu/s3c44b0/start.o=20
(.text)<BR>*(.text)<BR>}<BR><BR>. =3D ALIGN(4);<BR>.rodata : { =
*(.rodata)=20
}<BR><BR>. =3D ALIGN(4);<BR>.data : { *(.data) }<BR><BR>. =3D=20
ALIGN(4);<BR>.got : { *(.got) }<BR><BR>__u_boot_cmd_start =3D=20
.;<BR>.u_boot_cmd : { *(.u_boot_cmd) }<BR>__u_boot_cmd_end =3D=20
.;<BR><BR>armboot_end_data =3D .;<BR><BR>. =3D =
ALIGN(4);<BR>__bss_start =3D=20
.;<BR>.bss : { *(.bss) }<BR>_end =3D .;<BR>}<BR><BR>2) =
=C9=E8=D6=C3=D2=EC=B3=A3=CF=F2=C1=BF(Exception=20
=
Vector)<BR>=D2=EC=B3=A3=D6=D0=B6=CF=CA=B8=C1=BF=B1=ED=A3=A8Exception =
Vector=20
=
Table=A3=A9=CA=C7u-boot=D3=EBuClinux=C4=DA=BA=CB=B7=A2=C9=FA=C1=AA=CF=B5=B9=
=D8=BC=FC=B5=C4=B5=D8=B7=BD=D6=AE=D2=BB=A1=A3=BC=B4=CA=B9uClinux=C4=DA=BA=
=CB=D2=D1=BE=AD=B5=C3=B5=BD=B4=A6=C0=ED=C6=F7=B5=C4=BF=D8=D6=C6=C8=A8=D4=CB=
=D0=D0=A3=AC=D2=BB=B5=A9=B7=A2=C9=FA=D6=D0=B6=CF=A3=AC=B4=A6=C0=ED=C6=F7=BB=
=B9=CA=C7=BB=E1=D7=D4=B6=AF=CC=F8=D7=AA=B5=BD=B4=D30x0=B5=D8=D6=B7=BF=AA=CA=
=BC=B5=C4=B5=DA=D2=BB=BC=B6=D2=EC=B3=A3=D6=D0=B6=CF=CA=B8=C1=BF=B1=ED=D6=D0=
=B5=C4=C4=B3=B8=F6=B1=ED=CF=EE=A3=A8=D2=C0=BE=DD=D3=DA=D6=D0=B6=CF=C0=E0=D0=
=CD=A3=A9=B4=A6=B6=C1=C8=A1=D6=B8=C1=EE=D4=CB=D0=D0=A1=A3<BR>=D2=EC=B3=A3=
=D6=D0=B6=CF=CA=B8=C1=BF=B1=ED=B1=D8=D0=EB=CA=C7=B4=D30=20
=
=B5=D8=D6=B7=BF=AA=CA=BC=A3=AC=C1=AC=D0=F8=B5=C4=B4=E6=B7=C5=A1=A3=C8=E7=CF=
=C2=C3=E6=B5=C4=BE=CD=B0=FC=C0=A8=C1=CB=B8=B4=CE=BB(reset),=CE=B4=B6=A8=D2=
=E5=B4=A6=C0=ED=A3=A8undef=A3=A9,=C8=ED=BC=FE=D6=D0=B6=CF(SWI),=D4=A4=C8=A5=
=D6=B8=C1=EE=B4=ED=CE=F3(Pabort),=CA=FD=BE=DD=B4=ED=CE=F3(Dabort),=B1=A3=C1=
=F4=A3=AC=D2=D4=BC=B0IRQ,FIQ=20
=
=B5=C8=A1=A3=D7=A2=D2=E2=D5=E2=C0=EF=B5=C4=D6=B5=B1=D8=D0=EB=D3=EBuClinux=
=B5=C4vector_base =
=D2=BB=D6=C2=A1=A3=D5=E2=BE=CD=CA=C7=CB=B5=C8=E7=B9=FBuClinux=20
=
=D6=D0vector_base(include/armnommu/proc-armv/system.h)=B6=A8=D2=E5=CE=AA0=
x0c00=20
0000,=D4=F2HandleUndef =D3=A6=B8=C3=D4=DA<BR>0x0c00 =
0004=A1=A3<BR>.globl _start<BR>_start: b=20
reset<BR>/*Modfied by zl 2005-2-21 */<BR>/* add pc, pc, =
#0x0c000000<BR>add=20
pc, pc, #0x0c000000<BR>add pc, pc, #0x0c000000<BR>add pc, pc,=20
#0x0c000000<BR>add pc, pc, #0x0c000000<BR>add pc, pc, =
#0x0c000000<BR>add=20
pc, pc, #0x0c000000 <BR>*/<BR>ldr pc, =3D0x0c000004<BR>ldr pc,=20
=3D0x0c000008<BR>ldr pc, =3D0x0c00000c<BR>ldr pc, =
=3D0x0c000010<BR>ldr pc,=20
=3D0x0c000014<BR>ldr pc, =3D0x0c000018<BR>ldr pc, =
=3D0x0c00001c<BR><BR>.balignl=20
=
16,0xdeadbeef<BR>=D5=E2=C0=EF=A3=AC=B5=D8=D6=B70x0=B4=A6=B5=C4=D2=BB=BC=B6=
=D2=EC=B3=A3=D6=D0=B6=CF=CA=B8=C1=BF=B1=ED=D6=BB=BC=F2=B5=A5=B5=D8=B0=FC=BA=
=AC=CF=F2=B6=FE=BC=B6=D2=EC=B3=A3=D6=D0=B6=CF=CA=B8=C1=BF=B1=ED=B5=C4=CC=F8=
=D7=AA=D6=B8=C1=EE=BE=CD=BF=C9=D2=D4=A1=A3=D5=E2=D1=F9=A3=AC=BE=CD=C4=DC=B9=
=BB=D5=FD=C8=B7=B5=D8=BD=AB=B7=A2=C9=FA=B5=C4=CA=C2=BC=FE=BD=BB=B8=F8uCli=
nux=B5=C4=D6=D0=B6=CF=B4=A6=C0=ED=B3=CC=D0=F2=C0=B4=B4=A6=C0=ED=A1=A3=D5=E2=
=D1=F9=C9=E8=BC=C6=CA=C7=D2=F2=CE=AA=D4=DA=B1=BEu-boot=D2=C6=D6=B2=C0=EF=B2=
=BB=CA=B9=D3=C3=D6=D0=B6=CF=A3=AC8019=BA=CDTimer=B6=BC=CA=C7=C2=D6=D1=AF=D6=
=D0=B6=CF=B5=C4=A3=AC=C8=E7=B9=FBu-boot=D2=AA=CA=B9=D3=C3=D6=D0=B6=CF=A3=A8=
=C8=E7=D2=AA=D3=C3=B5=BDUSB=C9=E8=B1=B8=A3=A9=A3=AC=BE=CD=D0=E8=D2=AA=BD=A8=
=C1=A2=B6=FE=BC=B6=D2=EC=B3=A3=D6=D0=B6=CF=CA=B8=C1=BF=B1=ED=C1=CB=A1=A3=B4=
=FA=C2=EB=C8=E7=CF=C2=A3=A8=C3=BB=D3=D0=B5=F7=CA=D4=CD=A8=B9=FD=A3=A9=A3=BA=
<BR>.globl=20
_start<BR>_start: b reset<BR>add pc, pc, #0x0c000000<BR>add pc, =
pc,=20
#0x0c000000<BR>add pc, pc, #0x0c000000<BR>add pc, pc, =
#0x0c000000<BR>add=20
pc, pc, #0x0c000000<BR>add pc, pc, #0x0c000000<BR>add pc, pc, =
#0x0c000000=20
<BR><BR>.balignl 16,0xdeadbeef =
<BR>....<BR>=D4=DAReset=CA=C7=B8=B4=D6=C6=D6=D0=B6=CF=CA=B8=C1=BF=B1=ED<B=
R>/*<BR>now=20
copy to sram the interrupt vector<BR>*/<BR>adr r0, =
real_vectors<BR>add r2,=20
r0, #1024<BR>ldr r1, =3D0x0c000000<BR>add r1, r1,=20
#0x08<BR>vector_copy_loop:<BR>ldmia r0!, {r3-r10}<BR>stmia r1!,=20
{r3-r10}<BR>cmp r0, r2<BR>ble vector_copy_loop=20
=
<BR><BR>....<BR>=BD=A8=C1=A2=C8=FD=BC=B6=D6=D0=B6=CF=CC=F8=D7=AA<BR>/****=
*********************************************/<BR>/*=20
interrupt vectors=20
=
*/<BR>/*************************************************/<BR>/*<BR>real_v=
ectors:<BR>b=20
reset<BR>b undefined_instruction<BR>b software_interrupt<BR>b=20
prefetch_abort<BR>b data_abort<BR>b not_used<BR>b irq<BR>b fiq=20
=
<BR>*/<BR><BR>/*************************************************/<BR>unde=
fined_instruction:<BR>mov=20
r6, #3<BR>b reset<BR><BR>software_interrupt:<BR>mov r6, #4<BR>b=20
reset<BR><BR>prefetch_abort:<BR>mov r6, #5<BR>b=20
reset<BR><BR>data_abort:<BR>mov r6, #6<BR>b =
reset<BR><BR>not_used:<BR>/*=20
we *should* never reach this */<BR>mov r6, #7<BR>b=20
reset<BR><BR>irq:<BR>mov r6, #8<BR>b reset<BR><BR>fiq:<BR>mov r6, =
#9<BR>b=20
reset<BR><BR>3) =B3=F5=CA=BC=BB=AFCPU =
=CF=E0=B9=D8=B5=C4pll,clock,=D6=D0=B6=CF=BF=D8=D6=C6=BC=C4=B4=E6=C6=F7<BR=
>=D2=C0=B4=CE=CE=AA=B9=D8=B1=D5watch dog=20
=
timer,=B9=D8=B1=D5=D6=D0=B6=CF=A3=AC=C9=E8=D6=C3LockTime=A3=ACPLL(phase =
lock=20
=
loop),=D2=D4=BC=B0=CA=B1=D6=D3=A1=A3<BR>=D5=E2=D0=A9=D6=B5=A3=A8=B3=FD=C1=
=CBLOCKTIME=A3=A9=B6=BC=BF=C9=B4=D3Samsung 44b0=20
=
=B5=C4=CA=D6=B2=E1=D6=D0=B2=E9=B5=BD=A1=A3<BR>/*<BR>*********************=
****************************************************<BR>*<BR>*=20
CPU_init_critical registers<BR>*<BR>* setup important =
registers<BR>* setup=20
memory=20
=
timing<BR>*<BR>**********************************************************=
***************<BR>*/<BR><BR>#define=20
INTCON (0x01c00000+0x200000)<BR>#define INTMSK=20
(0x01c00000+0x20000c)<BR>#define LOCKTIME =
(0x01c00000+0x18000c)<BR>#define=20
PLLCON (0x01c00000+0x180000)<BR>#define CLKCON=20
(0x01c00000+0x180004)<BR>#define WTCON=20
(0x01c00000+0x130000)<BR>cpu_init_crit:<BR>/* disable watch dog =
*/<BR>ldr=20
r0, =3DWTCON<BR>ldr r1, =3D0x0<BR>str r1, [r0]<BR><BR>/*<BR>* mask =
all IRQs by=20
clearing all bits in the INTMRs<BR>*/<BR>ldr r1,=3DINTMSK<BR>ldr =
r0,=20
=3D0x03fffeff<BR>str r0, [r1]<BR><BR>ldr r1, =3DINTCON<BR>ldr r0, =
=3D0x05<BR>str=20
r0, [r1]<BR><BR>/* Set Clock Control Register */<BR>ldr r1,=20
=3DLOCKTIME<BR>ldrb r0, =3D800<BR>strb r0, [r1]<BR><BR>ldr r1,=20
=3DPLLCON<BR><BR>#if CONFIG_S3C44B0_CLOCK_SPEED=3D=3D64<BR>ldr r0, =
=3D0x38021 /*=20
smdk4110: Xtal=3D8MHz Fclk=3D64MHz */<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D66<BR>ldr r0, =3D0x34031 /* 66MHz =
(Quartz=3D11MHz)=20
*/<BR>#elif CONFIG_S3C44B0_CLOCK_SPEED=3D=3D75<BR>ldr r0, =
=3D0x610c1 /*B2:=20
Xtal=3D20mhz Fclk=3D75MHz */<BR>#else<BR># error =
CONFIG_S3C44B0_CLOCK_SPEED=20
undefined<BR>#endif<BR><BR>str r0, [r1]<BR><BR>ldr =
r1,=3DCLKCON<BR>ldr r0,=20
=3D0x7ff8<BR>str r0, [r1]<BR><BR>mov pc, lr<BR><BR>4)=20
=
=B3=F5=CA=BC=BB=AFSDRAM=BF=D8=D6=C6=C6=F7<BR>=C4=DA=B4=E6=BF=D8=D6=C6=C6=F7=
(=D6=F7=D2=AA=CA=C7SDRAM=BF=D8=D6=C6=C6=F7)=A3=AC=D6=F7=D2=AA=CD=A8=B9=FD=
=C9=E8=D6=C313 =B8=F6=B4=D31c80000 =
=BF=AA=CA=BC=B5=C4=BC=C4=B4=E6=C6=F7=C0=B4=C9=E8=D6=C3=A3=AC=B0=FC=C0=A8=D7=
=DC=CF=DF=BF=ED=B6=C8=A3=AC8=20
=B8=F6=C4=DA=B4=E6bank=A3=ACbank =
=B4=F3=D0=A1=A3=ACsclk,=D2=D4=BC=B0=C1=BD=B8=F6bank mode=A1=A3<BR>#ifdef =
CONFIG_INIT_CRITICAL<BR>bl=20
cpu_init_crit<BR>/*<BR>* before relocating, we have to setup RAM=20
timing<BR>* because memory timing is board-dependend, you =
will<BR>* find a=20
memsetup.S in your board directory.<BR>*/<BR>bl=20
=
memsetup<BR>#endif<BR>=B3=F5=CA=BC=BB=AF=C4=DA=B4=E6=BF=D8=D6=C6=C6=F7=B5=
=C4=B4=FA=C2=EB=B4=E6=B7=C5=D4=DAu-boot-1.1.2/board/gold44b/memsetup.S=D6=
=D0<BR>=D3=EBADS=BB=F2=D5=DFSDT=CF=C2=B5=C4boot=B4=FA=C2=EB=A3=A8memcfg.s=
=BA=CD44binit.s=A3=A9=D2=BB=D6=C2=A3=AC=D6=BB=CA=C7=BB=E3=B1=E0=B8=F1=CA=BD=
=D3=D0=B5=E3=B2=BB=D2=BB=D1=F9=A1=A3<BR>5)=20
=BD=ABrom =D6=D0=B5=C4=B3=CC=D0=F2=B8=B4=D6=C6=B5=BDRAM =
=D6=D0<BR>=CA=D7=CF=C8=C0=FB=D3=C3PC =C8=A1=B5=C3bootloader =D4=DAflash=20
=
=B5=C4=C6=F0=CA=BC=B5=D8=D6=B7=A3=AC=D4=D9=CD=A8=B9=FD=B1=EA=BA=C5=D6=AE=B2=
=EE=BC=C6=CB=E3=B3=F6=D5=E2=B8=F6=B3=CC=D0=F2=B4=FA<BR>=C2=EB=B5=C4=B4=F3=
=D0=A1=A1=A3=D5=E2=D0=A9=B1=EA=BA=C5=A3=AC=B1=E0=D2=EB=C6=F7=BB=E1=D4=DA=C1=
=AC=BD=D3=A3=A8link=A3=A9=B5=C4=CA=B1=BA=F2=C9=FA=B3=C9=D5=FD=C8=B7=B5=C4=
=B7=D6=B2=BC=B5=C4=D6=B5=A1=A3=C8=A1=B5=C3=D5=FD<BR>=C8=B7=D0=C5=CF=A2=BA=
=F3=A3=AC=CD=A8=B9=FD=BC=C4=B4=E6=C6=F7(r3=20
=
=B5=BDr10)=D7=F6=CE=AA=B8=B4=D6=C6=B5=C4=D6=D0=BC=E4=C3=BD=BD=E9=A3=AC=BD=
=AB=B4=FA=C2=EB=B8=B4=D6=C6=B5=BDRAM =D6=D0=A1=A3<BR><BR>relocate: /* =
relocate U-Boot to RAM=20
*/<BR>adr r0, _start /* r0 <- current position of code =
*/<BR>ldr r1,=20
_TEXT_BASE /* test if we run from flash or RAM */<BR>cmp r0, r1 /* =
don't=20
reloc during debug */<BR>beq stack_setup<BR><BR>ldr r2,=20
_armboot_start<BR>ldr r3, _bss_start<BR>sub r2, r3, r2 /* r2 <- =
size of=20
armboot */<BR>add r2, r0, r2 /* r2 <- source end address=20
*/<BR><BR>copy_loop:<BR>ldmia r0!, {r3-r10} /* copy from source =
address=20
[r0] */<BR>stmia r1!, {r3-r10} /* copy to target address [r1] =
*/<BR>cmp=20
r0, r2 /* until source end addreee [r2] */<BR>ble copy_loop<BR>6)=20
=
=B3=F5=CA=BC=BB=AF=B6=D1=D5=BB<BR>=BD=F8=C8=EB=B8=F7=D6=D6=C4=A3=CA=BD=C9=
=E8=D6=C3=CF=E0=D3=A6=C4=A3=CA=BD=B5=C4=B6=D1=D5=BB.<BR>/* Set up the =
stack */<BR>stack_setup:<BR>ldr=20
r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */<BR>sub r0, r0, =
#CFG_MALLOC_LEN /* malloc area */<BR>sub r0, r0, =
#CFG_GBL_DATA_SIZE /*=20
bdinfo */<BR>#ifdef CONFIG_USE_IRQ<BR>sub r0, r0,=20
#(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)<BR>#endif<BR>sub sp, =
r0, #12=20
/* leave 3 words for abort-stack */<BR><BR>7) =D7=AA=B5=BDRAM =
=D6=D0=D6=B4=D0=D0<BR>=CA=B9=D3=C3=D6=B8=C1=EEldr,pc,RAM=20
=D6=D0C =BA=AF=CA=FD=B5=D8=D6=B7=BE=CD=BF=C9=D2=D4=D7=AA=B5=BDRAM =
=D6=D0=C8=A5=D6=B4=D0=D0=A1=A3<BR>ldr pc, _start_armboot<BR><BR>5. =
=CF=B5=CD=B3=B3=F5=CA=BC=BB=AF=B2=BF=B7=D6<BR>1)=20
=
=B4=AE=BF=DA=B2=BF=B7=D6(u-boot-1.1.2/cpu/s3c44b0/serial.c)<BR>=B4=AE=BF=DA=
=B5=C4=C9=E8=D6=C3=D6=F7=D2=AA=B0=FC=C0=A8=B3=F5=CA=BC=BB=AF=B4=AE=BF=DA=B2=
=BF=B7=D6=A3=AC=D6=B5=B5=C3=D7=A2=D2=E2=B5=C4=B4=AE=BF=DA=B5=C4Baudrate=20
=D3=EB=CA=B1=D6=D3MCLK =
=D3=D0=BA=DC=B4=F3=B9=D8=CF=B5=A3=AC=CA=C7=CD=A8=B9=FD=A3=BArUBRDIV0=3D( =
(int)(MCLK/16./(gd ->baudrate) + 0.5) -1=20
=
)=BC=C6=CB=E3=B5=C3=B3=F6=A1=A3=D5=E2=BF=C9=D2=D4=D4=DA=CA=D6=B2=E1=D6=D0=
=B2=E9=B5=BD=A1=A3=D3=C9=D3=DAu-boot=D6=A7=B3=D6=BF=C9=B1=E4=B5=C4=B2=A8=CC=
=D8=C2=CA=A3=AC=CB=F9=D2=D4=B2=C9=D3=C3=BA=EA=B6=A8=D2=E5=C9=E8=D6=C3=C4=AC=
=C8=CF=B2=A8=CC=D8=C2=CA(64Mhz,115200bps)=BA=CD=C6=E4=CB=FB=B2=A8=CC=D8=C2=
=CA=A1=A3=B4=FA=C2=EB=C8=E7=CF=C2=A3=BA<BR>void=20
serial_setbrg (void)<BR>{<BR>DECLARE_GLOBAL_DATA_PTR;<BR><BR>u32 =
divisor =3D=20
0;<BR><BR>/* get correct divisor */<BR>switch(gd->baudrate)=20
{<BR><BR>case 1200:<BR>#if =
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D66<BR>divisor =3D=20
3124;<BR>#elif CONFIG_S3C44B0_CLOCK_SPEED=3D=3D75<BR>divisor =3D =
3905;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D64 /=C4=AC=C8=CF<BR>divisor =3D =
3332;<BR>#else<BR># error=20
CONFIG_S3C44B0_CLOCK_SPEED =
undefined<BR>#endif<BR>break;<BR><BR>case=20
9600:<BR>#if CONFIG_S3C44B0_CLOCK_SPEED=3D=3D66<BR>divisor =3D =
390;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D75<BR>divisor =3D 487;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D64 /=C4=AC=C8=CF<BR>divisor =3D =
416;<BR>#else<BR># error=20
CONFIG_S3C44B0_CLOCK_SPEED =
undefined<BR>#endif<BR>break;<BR><BR>case=20
19200:<BR>#if CONFIG_S3C44B0_CLOCK_SPEED=3D=3D66<BR>divisor =3D =
194;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D75<BR>divisor =3D 243;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D64 /=C4=AC=C8=CF<BR>divisor =3D =
207;<BR>#else<BR># error=20
CONFIG_S3C44B0_CLOCK_SPEED =
undefined<BR>#endif<BR>break;<BR><BR>case=20
38400:<BR>#if CONFIG_S3C44B0_CLOCK_SPEED=3D=3D66<BR>divisor =3D =
97;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D75<BR>divisor =3D 121;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D64 /=C4=AC=C8=CF<BR>divisor =3D =
103;<BR>#else<BR># error=20
CONFIG_S3C44B0_CLOCK_SPEED undefined<BR>#endif break;<BR><BR>case=20
57600:<BR>#if CONFIG_S3C44B0_CLOCK_SPEED=3D=3D66<BR>divisor =3D =
64;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D75<BR>divisor =3D 80;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D64 /=C4=AC=C8=CF<BR>divisor =3D =
68;<BR>#else<BR># error=20
CONFIG_S3C44B0_CLOCK_SPEED undefined<BR>#endif break;<BR><BR>case=20
115200:<BR>#if CONFIG_S3C44B0_CLOCK_SPEED=3D=3D66<BR>divisor =3D =
32;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D64<BR>divisor =3D 34;<BR>#elif=20
CONFIG_S3C44B0_CLOCK_SPEED=3D=3D75 /=C4=AC=C8=CF<BR>divisor =3D =
40;<BR>#else<BR># error=20
CONFIG_S3C44B0_CLOCK_SPEED undefined<BR>#endif=20
=
break;<BR>}<BR><BR>serial_flush_output();<BR>serial_flush_input();<BR>UFC=
ON0=20
=3D 0x0;<BR>ULCON0 =3D 0x03;<BR>UCON0 =3D 0x05;<BR>UBRDIV0 =3D=20
divisor;<BR><BR>UFCON1 =3D 0x0;<BR>ULCON1 =3D 0x03;<BR>UCON1 =3D=20
0x05;<BR>UBRDIV1 =3D divisor;<BR><BR>for(divisor=3D0; =
divisor<100;=20
divisor++) {<BR>/* NOP=20
=
*/<BR>}<BR>}<BR>=C6=E4=CB=FB=B5=C4=BA=AF=CA=FD=B0=FC=C0=A8=B7=A2=CB=CD=A3=
=AC=BD=D3=CA=D5=A1=A3=D5=E2=B8=F6=CA=B1=BA=F2=C3=BB=D3=D0=D6=D0=B6=CF=A3=AC=
=CA=C7=CD=A8=B9=FD=D1=AD=BB=B7=B5=C8=B4=FD=C0=B4=C5=D0=B6=CF=CA=C7=B7=F1=B6=
=AF=D7=F7=CD=EA=B3=C9=A1=A3<BR>=C0=FD=C8=E7=A3=AC=BD=D3=CA=D5=BA=AF=CA=FD=
=A3=BA<BR>static=20
int serial_flush_input(void)<BR>{<BR>volatile u32 tmp;<BR><BR>/* =
keep on=20
reading as long as the receiver is not empty=20
*/<BR>while(UTRSTAT0&0x01) {<BR>tmp =3D =
REGB(URXH0);<BR>}<BR><BR>return=20
0;<BR>}<BR>2)=20
=
=CA=B1=D6=D3=B2=BF=B7=D6=A3=A8u-boot-1.1.2/cpu/s3c44b0/interrupt.c=A3=A9<=
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