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<DIV>I have tried to configure PortX for use of memory space
0x7000_0000. I have modified MCCR4[EXTROM] to enable entened
ROM.</DIV>
<DIV>but i can't accessed address 0x70000000 ...</DIV>
<DIV>i find something worng in include/config_Sandpint8245.h</DIV>
<DIV>according to define BATs in config_Sandpint8245.h </DIV>
<DIV>not allocate BATs for address 0x7000000 , so i try change BAT1 for extended
rom </DIV>
<DIV>i modify ppcboot code to blow list</DIV>
<DIV> </DIV>
<DIV>1. 0x40000000 used by initial stack , until sdram init....(BAT1
allocation)</DIV>
<DIV>2. command/board.c : board_init_r () this function use stack...in ram so no
more need 0x40000000</DIV>
<DIV>3. my added code to BAT1 realloction for 0x70000000.. </DIV>
<DIV> void move_bat1 (void)<BR>
{<BR> mtspr (IBAT1L, (0x70000000 | BATL_PP_10 |
BATL_CACHEINHIBIT));<BR> mtspr (IBAT1U, (0x70000000 |
BATU_BL_256M | BATU_VS | BATU_VP));<BR><BR> mtspr (DBAT1L,
(0x70000000 | BATL_PP_10 | BATL_CACHEINHIBIT));<BR> mtspr
(DBAT1U, (0x70000000 | BATU_BL_256M | BATU_VS | BATU_VP));<BR>
__asm__ __volatile__("eieio");<BR> __asm__
__volatile__("isync");<BR> __asm__
__volatile__("sync");<BR></DIV>
<DIV>}</DIV>
<DIV> </DIV>
<DIV>4. call move_bat1 at board_init_r ......</DIV>
<DIV> </DIV>
<DIV>but...board not working.....</DIV>
<DIV> </DIV>
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