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Message-Id: <20200720074249.596364-4-jiaxun.yang@flygoat.com>
Date: Mon, 20 Jul 2020 15:42:36 +0800
From: Jiaxun Yang <jiaxun.yang@...goat.com>
To: linux-mips@...r.kernel.org
Cc: Jiaxun Yang <jiaxun.yang@...goat.com>,
Rob Herring <robh+dt@...nel.org>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Huacai Chen <chenhc@...ote.com>,
Frank Rowand <frowand.list@...il.com>,
Paul Burton <paulburton@...nel.org>,
Arnd Bergmann <arnd@...db.de>,
Nathan Chancellor <natechancellor@...il.com>,
Nick Desaulniers <ndesaulniers@...gle.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/5] MIPS: Loongson64: Enlarge IO_SPACE_LIMIT
It can be very big on LS7A PCH systems.
Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
arch/mips/include/asm/io.h | 3 ++-
arch/mips/include/asm/mach-loongson64/spaces.h | 3 +--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 346fffd9e972..0072489325fa 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -50,8 +50,9 @@
# define __relaxed_ioswabq ioswabq
/* ioswab[bwlq], __mem_ioswab[bwlq] are defined in mangle-port.h */
-
+#ifndef IO_SPACE_LIMIT
#define IO_SPACE_LIMIT 0xffff
+#endif
/*
* On MIPS I/O ports are memory mapped, so we access them using normal
diff --git a/arch/mips/include/asm/mach-loongson64/spaces.h b/arch/mips/include/asm/mach-loongson64/spaces.h
index 3de0ac9d8829..b99b43854929 100644
--- a/arch/mips/include/asm/mach-loongson64/spaces.h
+++ b/arch/mips/include/asm/mach-loongson64/spaces.h
@@ -11,8 +11,7 @@
#define PCI_IOSIZE SZ_16M
#define MAP_BASE (PCI_IOBASE + PCI_IOSIZE)
-/* Reserved at the start of PCI_IOBASE for legacy drivers */
-#define MMIO_LOWER_RESERVED 0x10000
+#define IO_SPACE_LIMIT 0x00ffffff
#include <asm/mach-generic/spaces.h>
#endif
--
2.28.0.rc1
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