mmu.s

来自「ARM9 S3c2410 with uda1341 iis control」· S 代码 · 共 13 行

   area   arm, CODE, READONLY

R1_iA   EQU     (1<<31)
R1_nF   EQU     (1<<30)   
;void MMU_SetAsyncBusMode(void) 
; FCLK:HCLK= 1:2
   export MMU_SetAsyncBusMode
MMU_SetAsyncBusMode
   mrc  p15,0,r0,c1,c0,0
   orr  r0,r0,#R1_nF:OR:R1_iA
   mcr  p15,0,r0,c1,c0,0
   movs pc,lr  ;ノ硂