[OpenWrt-Devel] [PATCH] [LANTIQ][V2] Add XWAY cpu-feature-overrides.h

[José Vázquez Fernández]

Add XWAY cpu-feature-overrides.h file.

This patch adds cpu-feature-overrides.h file for the XWAY family, based
in the one in FALCON.
Because Amazon SE was deprecated, cpu_has_dsp and cpu_has_mips16 have
been set, while cpu_has_mipsmt has been undefined due to the lack of mt
ASE in the Danube.
With this file the kernel size is reduced about 30KB in the XWAY
subtarget.
Tested only in a Danube based router with no problems and with a little
improvement in the USB port when using mass storage devices and wireless
dongles.
Changes in V2: disabled cpu_has_veic because XWAY family lacks this
feature as pointed by Thomas Langer.

Signed off by: José Vázquez Fernández <ppvazquezfer at gmail.com>


diff --git
a/target/linux/lantiq/patches-3.10/0036-MIPS-lantiq-xway-add-cpu-feature-override.patch b/target/linux/lantiq/patches-3.10/0036-MIPS-lantiq-xway-add-cpu-feature-override.patch
new file mode 100644
index 0000000..5e9a9d2
--- a/arch/mips/include/asm/mach-lantiq/xway/cpu-feature-overrides.h
1970-01-01 01:00:00.000000000 +0100
+++ b/arch/mips/include/asm/mach-lantiq/xway/cpu-feature-overrides.h
2014-07-01 12:37:07.790313378 +0200
@@ -0,0 +1,58 @@
+/*
+ *  Lantiq XWAY specific CPU feature overrides
+ *
+ *  Copyright (C) 2014 José Vázquez Fernández
+ *
+ *  This file was derived from: include/asm-mips/cpu-features.h
+ *	Copyright (C) 2003, 2004 Ralf Baechle
+ *	Copyright (C) 2004 Maciej W. Rozycki
+ *
+ *  This program is free software; you can redistribute it and/or
modify it
+ *  under the terms of the GNU General Public License version 2 as
published
+ *  by the Free Software Foundation.
+ *
+ */
+#ifndef __ASM_MACH_XWAY_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_XWAY_CPU_FEATURE_OVERRIDES_H
+
+#define cpu_has_tlb		1
+#define cpu_has_4kex		1
+#define cpu_has_3k_cache	0
+#define cpu_has_4k_cache	1
+#define cpu_has_tx39_cache	0
+#define cpu_has_sb1_cache	0
+#define cpu_has_fpu		0
+#define cpu_has_32fpr		0
+#define cpu_has_counter		1
+#define cpu_has_watch		1
+#define cpu_has_divec		1
+
+#define cpu_has_prefetch	1
+#define cpu_has_ejtag		1
+#define cpu_has_llsc		1
+
+#define cpu_has_dsp		1
+#define cpu_has_mips16		1
+#define cpu_has_dsp2		0
+#define cpu_has_mdmx		0
+#define cpu_has_mips3d		0
+#define cpu_has_smartmips	0
+#define cpu_has_vz		0
+
+#define cpu_has_mips32r1	1
+#define cpu_has_mips32r2	1
+#define cpu_has_mips64r1	0
+#define cpu_has_mips64r2	0
+
+#define cpu_has_vint		1 /* MIPSR2 vectored interrupts */
+#define cpu_has_veic		0
+
+#define cpu_has_64bits		0
+#define cpu_has_64bit_zero_reg	0
+#define cpu_has_64bit_gp_regs	0
+#define cpu_has_64bit_addresses	0
+
+#define cpu_dcache_line_size()	32
+#define cpu_icache_line_size()	32
+
+#endif /* __ASM_MACH_XWAY_CPU_FEATURE_OVERRIDES_H */
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