4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Matt Redfearn <[email protected]> commit a3078e593b74fe196e69f122f03ff0b32f652c53 upstream. 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 <[email protected]> Fixes: eed0eabd12ef ("MIPS: generic: Introduce generic DT-based board support") Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/15105/ Signed-off-by: Ralf Baechle <[email protected]> Cc: Amit Pundir <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- arch/mips/Kconfig | 1 + 1 file changed, 1 insertion(+) --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -95,6 +95,7 @@ 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
