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//
// Simple test code framework
//
//-----------------------------------------------------------------
// Copyright (C) 2003, 2004 Gary Thomas <gary@mlbassoc.com>
//-----------------------------------------------------------------
#include "ppc.inc"
#define GPIO0 (0xEF600700)
#define GPIO0_OR (GPIO0+0x000)
#define GPIO0_TCR (GPIO0+0x004)
.text
.globl start
start:
mfdcr r3,1018
mfdcr r4,1019
// Force caches to be totally clean
iccci 0,r3
lwi r3,0
lwi r4,0x8000
10: dccci 0,r3
addi r3,r3,16
cmpw r3,r4
bne 10b
#if 0 // Assume that 'boot' environment has set this up
//
// Setup GPIO to drive LEDs
//
lwi r11,GPIO0_OR
li r4,0x80
stw r4,GPIO0_TCR-GPIO0(r11)
stw r4,GPIO0_OR-GPIO0(r11)
#endif
// Setup and clear a stack used by the C code
lwi sp,stack_base-4
li r3,(stack-stack_base)/4
mtctr r3
li r0,0
10: stwu r0,4(sp)
bdnz 10b
// Initialize the terminal environment
bl tty_init
// Run the test code - it should never return
bl run_test
.section ".bss"
stack_base:
.rept 256
.byte 0
.endr
stack:
.end
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