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[U-Boot] powerpc: mpc85xx: Fix Work-around for Erratum A005125

Message ID 20180424030014.3010-1-ueba.takuma@jp.fujitsu.com
State Not Applicable
Headers show
Series [U-Boot] powerpc: mpc85xx: Fix Work-around for Erratum A005125 | expand

Commit Message

Takuma Ueba April 24, 2018, 3 a.m. UTC 
powerpc/mpc85xx: Work-around for Erratum A005125 must be applied to all cores.

Signed-off-by: Yoshihisa Morizumi <yoshi.morizumi@jp.fujitsu.com>
Signed-off-by: Takuma Ueba <ueba.takuma@jp.fujitsu.com>
---
 arch/powerpc/cpu/mpc85xx/release.S | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/arch/powerpc/cpu/mpc85xx/release.S b/arch/powerpc/cpu/mpc85xx/release.S
index e1f12089c3..39e2119f34 100644
--- a/arch/powerpc/cpu/mpc85xx/release.S
+++ b/arch/powerpc/cpu/mpc85xx/release.S
@@ -27,6 +27,13 @@ 
 	.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