From: Matt Redfearn Date: Mon, 23 Jan 2017 14:08:13 +0000 (+0000) Subject: MIPS: Generic: Fix big endian CPUs on generic machine X-Git-Tag: v4.11-rc1~135^2~25 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a3078e593b74fe196e69f122f03ff0b32f652c53;p=karo-tx-linux.git MIPS: Generic: Fix big endian CPUs on generic machine Big endian CPUs require SWAP_IO_SPACE enabled to swap accesses to little endian peripherals. Without this patch, big endian kernels fail to communicate with little endian periperals, such as PCI devices, on QEMU and FPGA based platforms. Signed-off-by: Matt Redfearn Fixes: eed0eabd12ef ("MIPS: generic: Introduce generic DT-based board support") Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/15105/ Signed-off-by: Ralf Baechle --- diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index ffd2f67b1aa2..b969522feb97 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -97,6 +97,7 @@ config MIPS_GENERIC select PCI_DRIVERS_GENERIC select PINCTRL select SMP_UP if SMP + select SWAP_IO_SPACE select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 select SYS_HAS_CPU_MIPS32_R6