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E500 update: repoint IVPR to RAM when code is relocated

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Patch by Kylo Ginsberg, 13 Apr 2005
This commit is contained in:
Wolfgang Denk 2005-10-05 00:00:54 +02:00
parent e5e98edd77
commit 7d314992a8
3 changed files with 12 additions and 0 deletions
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3
CHANGELOG
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@ -2,6 +2,9 @@
Changes for U-Boot 1.1.4: Changes for U-Boot 1.1.4:
====================================================================== ======================================================================
* E500 update: repoint IVPR to RAM when code is relocated
Patch by Kylo Ginsberg, 13 Apr 2005
* Fix loop end test in lib_generic/string.c:strswab() * Fix loop end test in lib_generic/string.c:strswab()
Patch by Andrew Dyer, October 10, 2005 Patch by Andrew Dyer, October 10, 2005
Signed-off-by: Andrew Dyer <amdyer@gmail.com> Signed-off-by: Andrew Dyer <amdyer@gmail.com>

5
cpu/mpc85xx/start.S
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@ -995,6 +995,11 @@ relocate_code:
7: sync /* Wait for all icbi to complete on bus */ 7: sync /* Wait for all icbi to complete on bus */
isync isync
/*
* Re-point the IVPR at RAM
*/
mtspr IVPR,r10
/* /*
* We are done. Do not return, instead branch to second part of board * We are done. Do not return, instead branch to second part of board
* initialization, now running from RAM. * initialization, now running from RAM.

4
lib_ppc/board.c
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@ -429,6 +429,10 @@ void board_init_f (ulong bootflag)
*/ */
addr -= len; addr -= len;
addr &= ~(4096 - 1); addr &= ~(4096 - 1);
#ifdef CONFIG_E500
/* round down to next 64 kB limit so that IVPR stays aligned */
addr &= ~(65536 - 1);
#endif
debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr); debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);