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u-boot: v2: Remove the fixed TLB and LAW entrynubmer

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Remove the fixed TLB and LAW entry nubmer. Use actually TLB and LAW
entry number to control the loop.  This can reduce the potential risk
for the 85xx processor increasing its TLB adn LAW entry number.

Signed-off-by: Swarthout Edward <swarthout@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
This commit is contained in:
Zang Roy-r61911 2006-12-20 11:01:00 +08:00 committed by Andrew Fleming-AFLEMING
parent 0b1934ba12
commit 63247a5acd
1 changed files with 4 additions and 12 deletions
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16
cpu/mpc85xx/start.S
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@ -251,13 +251,10 @@ _start_e500:
*/
bl tlb1_entry
mr r5,r0
li r1,0x0020 /* max 16 TLB1 plus some TLB0 entries */
mtctr r1
lwzu r4,0(r5) /* how many TLB1 entries we actually use */
mtctr r4
0: cmpwi r4,0
beq 1f
lwzu r0,4(r5)
0: lwzu r0,4(r5)
lwzu r1,4(r5)
lwzu r2,4(r5)
lwzu r3,4(r5)
@ -269,7 +266,6 @@ _start_e500:
msync
tlbwe
isync
addi r4,r4,-1
bdnz 0b
1:
@ -301,20 +297,16 @@ _start_e500:
bl law_entry
mr r6,r0
li r1,0x0007 /* 8 LAWs, but reserve one for boot-over-rio-or-pci */
mtctr r1
lwzu r5,0(r6) /* how many windows we actually use */
mtctr r5
li r2,0x0c28 /* the first pair is reserved for boot-over-rio-or-pci */
li r1,0x0c30
0: cmpwi r5,0
beq 1f
lwzu r4,4(r6)
0: lwzu r4,4(r6)
lwzu r3,4(r6)
stwx r4,r7,r2
stwx r3,r7,r1
addi r5,r5,-1
addi r2,r2,0x0020
addi r1,r1,0x0020
bdnz 0b