From 60ec6571c5072cdea9e518d1dac8147b85ca93a2 Mon Sep 17 00:00:00 2001 From: "pascal@pabr.org" Date: Sun, 3 Jan 2010 13:39:12 +0100 Subject: [PATCH] MIPS: Support 36-bit iomem on 32-bit Au1x00 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 --- arch/mips/Kconfig | 3 +++ arch/mips/include/asm/mach-au1x00/au1000.h | 4 ++-- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index db0a85355be7..591ca0cd4c24 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -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" diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h index 088c8e0f43bb..2805fc56484d 100644 --- a/arch/mips/include/asm/mach-au1x00/au1000.h +++ b/arch/mips/include/asm/mach-au1x00/au1000.h @@ -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 -- 2.39.2