[PATCH v4 10/13] powerpc/40x: Remove IBM405 Erratum #51

[Christophe Leroy]

This erratum was for IBM 403GCX, 405EP and STB03xxx which are
now gone.

Remove this erratum.

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
---
 arch/powerpc/kernel/head_40x.S     | 6 ------
 arch/powerpc/platforms/40x/Kconfig | 4 ----
 2 files changed, 10 deletions(-)

diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S
index b62b6ab769fc..faeea5b56525 100644
--- a/arch/powerpc/kernel/head_40x.S
+++ b/arch/powerpc/kernel/head_40x.S
@@ -425,13 +425,7 @@ _ENTRY(saved_ksp_limit)
 	EXCEPTION(0x1400, Trap_14, unknown_exception, EXC_XFER_STD)
 	EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_STD)
 	EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_STD)
-#ifdef CONFIG_IBM405_ERR51
-	/* 405GP errata 51 */
-	START_EXCEPTION(0x1700, Trap_17)
-	b DTLBMiss
-#else
 	EXCEPTION(0x1700, Trap_17, unknown_exception, EXC_XFER_STD)
-#endif
 	EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_STD)
 	EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_STD)
 	EXCEPTION(0x1A00, Trap_1A, unknown_exception, EXC_XFER_STD)
diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig
index 253c047fe6fe..ebe283476461 100644
--- a/arch/powerpc/platforms/40x/Kconfig
+++ b/arch/powerpc/platforms/40x/Kconfig
@@ -75,10 +75,6 @@ config PPC4xx_GPIO
 config IBM405_ERR77
 	bool
 
-# All 40x-based cores, up until the 405GPR and 405EP have this errata.
-config IBM405_ERR51
-	bool
-
 config APM8018X
 	bool "APM8018X"
 	depends on 40x
-- 
2.25.0