powerpc/40x: Remove support for IBM 405GP

All platforms selecting the obsolete processor are gone now.

Remove support for it.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/906c6a6df710f2826e332b8a0cd5d2859a913a1c.1590079969.git.christophe.leroy@csgroup.eu

arch/powerpc/kernel/cputable.c

@@ -1232,19 +1232,6 @@ static struct cpu_spec __initdata cpu_specs[] = {
 	},
 #endif /* CONFIG_PPC_8xx */
 #ifdef CONFIG_40x
-	{	/* 405GP */
-		.pvr_mask		= 0xffff0000,
-		.pvr_value		= 0x40110000,
-		.cpu_name		= "405GP",
-		.cpu_features		= CPU_FTRS_40X,
-		.cpu_user_features	= PPC_FEATURE_32 |
-			PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
-		.mmu_features		= MMU_FTR_TYPE_40x,
-		.icache_bsize		= 32,
-		.dcache_bsize		= 32,
-		.machine_check		= machine_check_4xx,
-		.platform		= "ppc405",
-	},
 	{	/* STB 04xxx */
 		.pvr_mask		= 0xffff0000,
 		.pvr_value		= 0x41810000,

arch/powerpc/platforms/40x/Kconfig

@@ -51,12 +51,6 @@ config PPC40x_SIMPLE
 	help
 	  This option enables the simple PowerPC 40x platform support.
 
-config 405GP
-	bool
-	select IBM405_ERR77
-	select IBM405_ERR51
-	select IBM_EMAC_ZMII if IBM_EMAC
-
 config 405EX
 	bool
 	select IBM_EMAC_EMAC4 if IBM_EMAC