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MIPS: Loongson64: Enlarge IO_SPACE_LIMIT

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It can be very big on LS7A PCH systems.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Jiaxun Yang 2020-07-28 23:36:57 +08:00 committed by Thomas Bogendoerfer
parent 6d0068ad15
commit 21a379a8cf
3 changed files with 5 additions and 4 deletions
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2
arch/mips/include/asm/io.h
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@ -51,8 +51,6 @@
/* ioswab[bwlq], __mem_ioswab[bwlq] are defined in mangle-port.h */
#define IO_SPACE_LIMIT 0xffff
/*
* On MIPS I/O ports are memory mapped, so we access them using normal
* load/store instructions. mips_io_port_base is the virtual address to

4
arch/mips/include/asm/mach-generic/spaces.h
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@ -14,6 +14,10 @@
#include <asm/mipsregs.h>
#ifndef IO_SPACE_LIMIT
#define IO_SPACE_LIMIT 0xffff
#endif
/*
* This gives the physical RAM offset.
*/

3
arch/mips/include/asm/mach-loongson64/spaces.h
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@ -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 (PCI_IOSIZE - 1)
#include <asm/mach-generic/spaces.h>
#endif