Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 15:14:43 +00:00
Code Issues Projects Releases Packages Wiki Activity

powerpc: mpc85xx: Implement CPU erratum A-007907 for secondary cores

Browse source 
Commit 06ad970b53 ("powerpc: mpc85xx: Implemente workaround for CPU
erratum A-007907") clears L1CSR2 for the boot core, but other cores
don't run through the workaround. Add similar code for secondary
cores to clear DCSTASHID field in L1CSR2 register.

Signed-off-by: York Sun <york.sun@nxp.com>
This commit is contained in:
York Sun 2017-10-17 08:00:21 -07:00
parent ce0dea889a
commit 1e0d51a6c4
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
arch/powerpc/cpu/mpc85xx/release.S
View file

@ -184,12 +184,18 @@ __secondary_start_page:
mtspr SPRN_PIR,r4 /* write to PIR register */
#ifdef CONFIG_SYS_FSL_ERRATUM_A007907
mfspr r8, L1CSR2
clrrwi r8, r8, 10 /* clear bit [54-63] DCSTASHID */
mtspr L1CSR2, r8
#else
#ifdef CONFIG_SYS_CACHE_STASHING
/* set stash id to (coreID) * 2 + 32 + L1 CT (0) */
slwi r8,r4,1
addi r8,r8,32
mtspr L1CSR2,r8
#endif
#endif /* CONFIG_SYS_FSL_ERRATUM_A007907 */
#if defined(CONFIG_SYS_P4080_ERRATUM_CPU22) || \
defined(CONFIG_SYS_FSL_ERRATUM_NMG_CPU_A011)