addi r31, 0, 0x00ff /* r31 = one byte of set bits */
stb r31,0(r28) /* save ff in referance address */
- /* ghost (inner) loop, now check all posible ghosted addresses */
+ /* ghost (inner) loop, now check all posible ghosted addresses */
addi r29, 0, 0 /* start ghosted loop counter at 0 */
inside:
/*
addi r3, 0, ERR_ADDF /* get indexed error message */
bl log_err /* log error led error code */
gb_done: /* pack your bags, and go home */
- lmw r25, 8(r1) /* restore r25 - r31 from stack */
- lwz r0, +40(r1) /* Get saved link register */
- addi r1, r1, +36 /* Remove frame from stack */
- mtlr r0 /* Restore link register */
- blr /* Return to calling function */
+ lmw r25, 8(r1) /* restore r25 - r31 from stack */
+ lwz r0, +40(r1) /* Get saved link register */
+ addi r1, r1, +36 /* Remove frame from stack */
+ mtlr r0 /* Restore link register */
+ blr /* Return to calling function */
/****************************************************
******** SDRAM data fill tests **********
blr /* Return to calling function */
-
/****************************************************
******** fill test ********
***************************************************/
/* r4 = Value to write */
/* r3 = Error code */
fill_test:
- mflr r0 /* Get link register */
- stwu r1, -32(r1) /* Save back chain and move SP */
- stw r0, +36(r1) /* Save link register */
- stmw r27, 8(r1) /* save r27 - r31 on stack */
- /* r31 - scratch register */
- /* r30 - memory address */
+ mflr r0 /* Get link register */
+ stwu r1, -32(r1) /* Save back chain and move SP */
+ stw r0, +36(r1) /* Save link register */
+ stmw r27, 8(r1) /* save r27 - r31 on stack */
+ /* r31 - scratch register */
+ /* r30 - memory address */
mr r27, r3
mr r28, r4
mr r29, r5
mtctr r31 /* setup counter */
addi r30, 0, 0 /* Make r30 = addr 0 */
ft_1: lwz r31, 0(r30) /* get value from memory */
- xor. r31, r31, r28 /* Writen = Read ? */
- bne ft_err /* If bad, than halt */
+ xor. r31, r31, r28 /* Writen = Read ? */
+ bne ft_err /* If bad, than halt */
addi r30, r30, 4 /* Increment to next word */
andi. r31, r30, 0xffff /* check for 2^16 loops*/
bne ft_1a /* if not there, then skip */
bl log_err /* output led err code, halt CPU */
fill_done:
- lmw r27, 8(r1) /* restore r27 - r31 from stack */
- lwz r0, +36(r1) /* Get saved link register */
- addi r1, r1, +32 /* Remove frame from stack */
- mtlr r0 /* Restore link register */
- blr /* Return to calling function */
+ lmw r27, 8(r1) /* restore r27 - r31 from stack */
+ lwz r0, +36(r1) /* Get saved link register */
+ addi r1, r1, +32 /* Remove frame from stack */
+ mtlr r0 /* Restore link register */
+ blr /* Return to calling function */
/****************************************************
mtctr r3
log_2:
WATCHDOG_RESET /* this keeps dog from barking, */
- /* and takes time */
+ /* and takes time */
bdnz log_2 /* loop till time expires */
/* restore stack and return */
stwu r1, -8(r1) /* Save back chain and move SP */
stw r0, +12(r1) /* Save link register */
- addis r3, 0, 0xef60
- ori r3, r3, 0x0303 /* r3 = UART0_LCR */
- addi r4, 0, 0x83 /* n81 format, divisor regs enabled */
- stb r4, 0(r3)
+ addis r3, 0, 0xef60
+ ori r3, r3, 0x0303 /* r3 = UART0_LCR */
+ addi r4, 0, 0x83 /* n81 format, divisor regs enabled */
+ stb r4, 0(r3)
/* set baud rate to use internal clock,
baud = (200e6/16)/31/42 = 9600 */
- addis r3, 0, 0xef60 /* Address of baud divisor reg */
- ori r3, r3, 0x0300 /* UART0_DLM */
- addi r4, 0, +42 /* uart baud divisor LSB = 93 */
- stb r4, 0(r3) /* baud = (200 /16)/14/93 */
+ addis r3, 0, 0xef60 /* Address of baud divisor reg */
+ ori r3, r3, 0x0300 /* UART0_DLM */
+ addi r4, 0, +42 /* uart baud divisor LSB = 93 */
+ stb r4, 0(r3) /* baud = (200 /16)/14/93 */
- addi r3, r3, 0x0001 /* uart baud divisor addr */
- addi r4, 0, 0
- stb r4, 0(r3) /* Divisor Latch MSB = 0 */
+ addi r3, r3, 0x0001 /* uart baud divisor addr */
+ addi r4, 0, 0
+ stb r4, 0(r3) /* Divisor Latch MSB = 0 */
- addis r3, 0, 0xef60
- ori r3, r3, 0x0303 /* r3 = UART0_LCR */
- addi r4, 0, 0x03 /* n81 format, tx/rx regs enabled */
- stb r4, 0(r3)
+ addis r3, 0, 0xef60
+ ori r3, r3, 0x0303 /* r3 = UART0_LCR */
+ addi r4, 0, 0x03 /* n81 format, tx/rx regs enabled */
+ stb r4, 0(r3)
/* output a few line feeds */
addi r3, 0, '\n' /* load line feed */
addi r3, 0, '\n' /* load line feed */
bl post_putc /* output the char */
- /* restore stack and return */
+ /* restore stack and return */
lwz r0, +12(r1) /* Get saved link register */
mtlr r0 /* Restore link register */
addi r1, r1, +8 /* Remove frame from stack */
stw r0, +24(r1) /* Save link register */
stmw r29, 8(r1) /* save r29 - r31 on stack
r31 - uart base address
- r30 - delay counter
+ r30 - delay counter
r29 - scratch reg */
addis r31, 0, 0xef60 /* Point to uart base */
b pputs_end /* were outa here */
pputs_term:
addi r3, 0, 1 /* set success code */
- /* restore stack and return */
+ /* restore stack and return */
pputs_end:
lwz r31, 8(r1) /* restore r27 - r31 from stack */
lwz r0, +16(r1) /* Get saved link register */
blr /* Return to calling function */
-
/********************************************************************
***** disp_hex
***** Routine to display a hex value from a register.
pputh_err:
addi r3, 0, -1 /* set error code */
pputh_done:
- /* restore stack and return */
+ /* restore stack and return */
lmw r30, 8(r1) /* restore r30 - r31 from stack */
lwz r0, +20(r1) /* Get saved link register */
addi r1, r1, +16 /* Remove frame from stack */
mtlr r0 /* Restore link register */
blr /* Return to calling function */
-
projects / people / ms / u-boot.git / blobdiff