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Fix for RUTX platform

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Ycarus (Yannick Chabanois) 2022-03-28 18:17:07 +02:00
parent ccdb64ad45
commit 59bc57d5d5
7254 changed files with 1810270 additions and 7 deletions
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40
root/package/utils/sysupgrade-helper/src/board/qemu-mips/lowlevel_init.S Normal file
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/* Memory sub-system initialization code */
#include <config.h>
#include <asm/regdef.h>
#include <asm/mipsregs.h>
.text
.set noreorder
.set mips32
.globl lowlevel_init
lowlevel_init:
/*
* Step 2) Establish Status Register
* (set BEV, clear ERL, clear EXL, clear IE)
*/
li t1, 0x00400000
mtc0 t1, CP0_STATUS
/*
* Step 3) Establish CP0 Config0
* (set K0=3)
*/
li t1, 0x00000003
mtc0 t1, CP0_CONFIG
/*
* Step 7) Establish Cause
* (set IV bit)
*/
li t1, 0x00800000
mtc0 t1, CP0_CAUSE
/* Establish Wired (and Random) */
mtc0 zero, CP0_WIRED
nop
jr ra
nop