How do I change CCSBAR on P4080 CPU.

hyenongijeong — Thu, 10 Mar 2016 09:00:07 GMT

This is my source code in "rominit.s" (vxWorks BSP)

Then our board is not booted.

How do I modify this code?

#define CCSBAR_RESET 0xFE000000

#define CCSBAR 0xE0000000

/* set to ccsbar_reset in LAWBARL8 */

WRITEADR(r6, r7, P4080_LAWBARL8(CCSBAR_RESET), CCSBAR)

sync

WRITEADR(r6, r7, P4080_LAWAR8(CCSBAR_RESET), (LAWAR_ENABLE | LAWAR_TGTIF_RESERVE | LAWAR_SIZE_16MB) )

LOADVAR(r7, P4080_LAWAR8(CCSBAR_RESET))

isync /* ensure LAWAR8 is set */

/* get to CCSBAR_H */

lis r7, HI(CCSBAR_RESET)

ori r7, r7, LO(CCSBAR_RESET)

lwz r4, (CCSRBARH_OFFSET)(r7) /* CCSRBARH_OFFSET: 0x0 */

/* get to CCSBAR_L */

lis r7, HI(CCSBAR_RESET)

ori r7, r7, LO(CCSBAR_RESET)

lwz r4, (CCSRBARL_OFFSET)(r7) /* CCSRBARL_OFFSET: 0x4 */

lis r6, HI(CCSBAR)

ori r6, r6, LO(CCSBAR)

xor r5, r5, r5

lis r7, HI(CCSBAR_RESET)

ori r7, r7, LO(CCSBAR_RESET)

stw r5,(CCSRBARH_OFFSET)(r7) /* *(CCSBAR_RESET + CCSRBARH_OFFSET) = r5 */

stw r6,(CCSRBARL_OFFSET)(r7) /* *(CCSBAR_RESET + CCSRBARL_OFFSET) = r6 */

sync

lis r5,HI(CCSBAR_COMMIT)

ori r5,r5, LO(CCSBAR_COMMIT)

stw r5,(CCSRAR_OFFSET)(r7)

sync

/* set to clear in LAWBARL8 */

WRITEADR(r6, r7, P4080_LAWBARL8(CCSBAR), 0x0)

sync

WRITEADR(r6, r7, P4080_LAWAR8(CCSBAR), 0x0)

LOADVAR(r7, P4080_LAWAR8(CCSBAR))

isync /* ensure LAWAR8 is set */

Re: How do I change CCSBAR on P4080 CPU.

ufedor — Thu, 10 Mar 2016 09:03:39 GMT

What is the question?

Re: How do I change CCSBAR on P4080 CPU.

hyenongijeong — Fri, 11 Mar 2016 00:54:15 GMT

My Question is..

How Can I MOVE CCSBAR Address from 0xFE000000(default) to 0xE0000000 or other address?

Re: How do I change CCSBAR on P4080 CPU.

ufedor — Fri, 11 Mar 2016 02:51:48 GMT

Please debug the code and consult with Wind River.

The NXP/Freescale solution is implemented in the U-Boot source code included into the Linux SDK:

sdk/u-boot.git - Freescale PowerPC u-boot Tree

Re: How do I change CCSBAR on P4080 CPU.

hyenongijeong — Fri, 11 Mar 2016 04:50:27 GMT

THANK YOU FOR YOUR KIND ANSWER!

P-SeriesのトピックHow do I change CCSBAR on P4080 CPU.

How do I change CCSBAR on P4080 CPU.

Re: How do I change CCSBAR on P4080 CPU.

Re: How do I change CCSBAR on P4080 CPU.

Re: How do I change CCSBAR on P4080 CPU.

Re: How do I change CCSBAR on P4080 CPU.