powerpc: mpc85xx: Improve Work-around for Erratum A005125

Work-around for Erratum A005125 must be applied to all cores.

Signed-off-by: Yoshihisa Morizumi <[email protected]>
Signed-off-by: Takuma Ueba <[email protected]>
Reviewed-by: York Sun <[email protected]>

diff --git a/arch/powerpc/cpu/mpc85xx/release.S b/arch/powerpc/cpu/mpc85xx/release.S
index 5d212f35b56c97506e37c3e2ee36c88aa173c554..d37e1ccf1e7fdfae016fb92e9c55be046a2655d0 100644 (file)
--- a/arch/powerpc/cpu/mpc85xx/release.S
+++ b/arch/powerpc/cpu/mpc85xx/release.S
@@ -26,6 +26,13 @@
        .globl  __secondary_start_page
        .align  12
 __secondary_start_page:
+#ifdef CONFIG_SYS_FSL_ERRATUM_A005125
+       msync
+       isync
+       mfspr   r3, SPRN_HDBCR0
+       oris    r3, r3, 0x0080
+       mtspr   SPRN_HDBCR0, r3
+#endif
 /* First do some preliminary setup */
        lis     r3, HID0_EMCP@h         /* enable machine check */
 #ifndef CONFIG_E500MC