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MIPS: Support 36-bit iomem on 32-bit Au1x00

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I believe these changes are needed on Alchemy SoCs in order to
use iomem above 4G with the usual platform_device machinery:

- Set CONFIG_ARCH_PHYS_ADDR_T_64BIT to make resource_size_t 64-bit.
- Increase IOMEM_RESOURCE_END so that platforms can register resources.

To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/814/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
pascal@pabr.org 2010-01-03 13:39:12 +01:00 committed by Ralf Baechle
parent fc48c41af8
commit 60ec6571c5
2 changed files with 5 additions and 2 deletions
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3
arch/mips/Kconfig
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@ -1725,6 +1725,9 @@ config SB1_PASS_2_1_WORKAROUNDS
config 64BIT_PHYS_ADDR
bool
config ARCH_PHYS_ADDR_T_64BIT
def_bool 64BIT_PHYS_ADDR
config CPU_HAS_SMARTMIPS
depends on SYS_SUPPORTS_SMARTMIPS
bool "Support for the SmartMIPS ASE"

4
arch/mips/include/asm/mach-au1x00/au1000.h
View File

@ -1659,7 +1659,7 @@ enum soc_au1200_ints {
#define IOPORT_RESOURCE_START 0x00001000 /* skip legacy probing */
#define IOPORT_RESOURCE_END 0xffffffff
#define IOMEM_RESOURCE_START 0x10000000
#define IOMEM_RESOURCE_END 0xffffffff
#define IOMEM_RESOURCE_END 0xfffffffffULL
#else /* Au1000 and Au1100 and Au1200 */
@ -1667,7 +1667,7 @@ enum soc_au1200_ints {
#define IOPORT_RESOURCE_START 0x10000000
#define IOPORT_RESOURCE_END 0xffffffff
#define IOMEM_RESOURCE_START 0x10000000
#define IOMEM_RESOURCE_END 0xffffffff
#define IOMEM_RESOURCE_END 0xfffffffffULL
#define PCI_IO_START 0
#define PCI_IO_END 0