MIPS: generic: Convert SEAD-3 to a generic board

Convert the MIPS SEAD-3 board support to be a generic board, supported
by generic kernels.

Because the SEAD-3 boot protocol was defined long ago and we don't want
to force a switch to the UHI protocol, SEAD-3 is added as a legacy board
which is detected by reading the REVISION register. This may technically
not be a valid memory read & future work will include attempting to
handle that gracefully. In practice since SEAD-3 is the only legacy
board supported by the generic kernel so far the read will only happen
on SEAD-3 boards, and even once Malta is converted the same REVISION
register exists there too. Other boards such as Boston, Ci20 & Ci40 will
use the UHI boot protocol & thus not run any of the legacy board detect
functions.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14354/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

5 files changed, 0 insertions, 155 deletions

diff --git a/arch/mips/include/asm/mach-sead3/cpu-feature-overrides.h b/arch/mips/include/asm/mach-sead3/cpu-feature-overrides.h
deleted file mode 100644
index bfbd7035d4c5..000000000000
--- a/arch/mips/include/asm/mach-sead3/cpu-feature-overrides.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2003, 2004 Chris Dearman
- * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
- */
-#ifndef __ASM_MACH_MIPS_CPU_FEATURE_OVERRIDES_H
-#define __ASM_MACH_MIPS_CPU_FEATURE_OVERRIDES_H
-
-
-/*
- * CPU feature overrides for MIPS boards
- */
-#ifdef CONFIG_CPU_MIPS32
-#define cpu_has_tlb		1
-#define cpu_has_4kex		1
-#define cpu_has_4k_cache	1
-/* #define cpu_has_fpu		? */
-/* #define cpu_has_32fpr	? */
-#define cpu_has_counter		1
-/* #define cpu_has_watch	? */
-#define cpu_has_divec		1
-#define cpu_has_vce		0
-/* #define cpu_has_cache_cdex_p ? */
-/* #define cpu_has_cache_cdex_s ? */
-/* #define cpu_has_prefetch	? */
-#define cpu_has_mcheck		1
-/* #define cpu_has_ejtag	? */
-#ifdef CONFIG_CPU_MICROMIPS
-#define cpu_has_llsc		0
-#else
-#define cpu_has_llsc		1
-#endif
-/* #define cpu_has_vtag_icache	? */
-/* #define cpu_has_dc_aliases	? */
-/* #define cpu_has_ic_fills_f_dc ? */
-#define cpu_has_nofpuex		0
-/* #define cpu_has_64bits	? */
-/* #define cpu_has_64bit_zero_reg ? */
-/* #define cpu_has_inclusive_pcaches ? */
-#define cpu_icache_snoops_remote_store 1
-#endif
-
-#ifdef CONFIG_CPU_MIPS64
-#define cpu_has_tlb		1
-#define cpu_has_4kex		1
-#define cpu_has_4k_cache	1
-/* #define cpu_has_fpu		? */
-/* #define cpu_has_32fpr	? */
-#define cpu_has_counter		1
-/* #define cpu_has_watch	? */
-#define cpu_has_divec		1
-#define cpu_has_vce		0
-/* #define cpu_has_cache_cdex_p ? */
-/* #define cpu_has_cache_cdex_s ? */
-/* #define cpu_has_prefetch	? */
-#define cpu_has_mcheck		1
-/* #define cpu_has_ejtag	? */
-#define cpu_has_llsc		1
-/* #define cpu_has_vtag_icache	? */
-/* #define cpu_has_dc_aliases	? */
-/* #define cpu_has_ic_fills_f_dc ? */
-#define cpu_has_nofpuex		0
-/* #define cpu_has_64bits	? */
-/* #define cpu_has_64bit_zero_reg ? */
-/* #define cpu_has_inclusive_pcaches ? */
-#define cpu_icache_snoops_remote_store 1
-#endif
-
-#endif /* __ASM_MACH_MIPS_CPU_FEATURE_OVERRIDES_H */
diff --git a/arch/mips/include/asm/mach-sead3/irq.h b/arch/mips/include/asm/mach-sead3/irq.h
deleted file mode 100644
index 5d154cfbcf4c..000000000000
--- a/arch/mips/include/asm/mach-sead3/irq.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef __ASM_MACH_MIPS_IRQ_H
-#define __ASM_MACH_MIPS_IRQ_H
-
-#define NR_IRQS 256
-
-
-#include_next <irq.h>
-
-#endif /* __ASM_MACH_MIPS_IRQ_H */
diff --git a/arch/mips/include/asm/mach-sead3/kernel-entry-init.h b/arch/mips/include/asm/mach-sead3/kernel-entry-init.h
deleted file mode 100644
index 6cccd4d558d7..000000000000
--- a/arch/mips/include/asm/mach-sead3/kernel-entry-init.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Chris Dearman (chris@mips.com)
- * Copyright (C) 2007 Mips Technologies, Inc.
- */
-#ifndef __ASM_MACH_MIPS_KERNEL_ENTRY_INIT_H
-#define __ASM_MACH_MIPS_KERNEL_ENTRY_INIT_H
-
-	.macro	kernel_entry_setup
-	.endm
-
-/*
- * Do SMP slave processor setup necessary before we can safely execute C code.
- */
-	.macro	smp_slave_setup
-	.endm
-
-#endif /* __ASM_MACH_MIPS_KERNEL_ENTRY_INIT_H */
diff --git a/arch/mips/include/asm/mach-sead3/sead3-dtshim.h b/arch/mips/include/asm/mach-sead3/sead3-dtshim.h
deleted file mode 100644
index f5d7d9c9dd17..000000000000
--- a/arch/mips/include/asm/mach-sead3/sead3-dtshim.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef __MIPS_SEAD3_DTSHIM_H__
-#define __MIPS_SEAD3_DTSHIM_H__
-
-#include <linux/init.h>
-
-#ifdef CONFIG_MIPS_SEAD3
-
-extern void __init *sead3_dt_shim(void *fdt);
-
-#else /* !CONFIG_MIPS_SEAD3 */
-
-static inline void *sead3_dt_shim(void *fdt)
-{
-	return fdt;
-}
-
-#endif /* !CONFIG_MIPS_SEAD3 */
-
-#endif /* __MIPS_SEAD3_DTSHIM_H__ */
diff --git a/arch/mips/include/asm/mach-sead3/war.h b/arch/mips/include/asm/mach-sead3/war.h
deleted file mode 100644
index d068fc411f47..000000000000
--- a/arch/mips/include/asm/mach-sead3/war.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org>
- */
-#ifndef __ASM_MIPS_MACH_MIPS_WAR_H
-#define __ASM_MIPS_MACH_MIPS_WAR_H
-
-#define R4600_V1_INDEX_ICACHEOP_WAR	0
-#define R4600_V1_HIT_CACHEOP_WAR	0
-#define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
-#define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
-#define MIPS4K_ICACHE_REFILL_WAR	1
-#define MIPS_CACHE_SYNC_WAR		1
-#define TX49XX_ICACHE_INDEX_INV_WAR	0
-#define ICACHE_REFILLS_WORKAROUND_WAR	1
-#define R10000_LLSC_WAR			0
-#define MIPS34K_MISSED_ITLB_WAR		0
-
-#endif /* __ASM_MIPS_MACH_MIPS_WAR_H */