u-boot.git/arch/mips/include/asm/io.h, branch v2017.09

MIPS: Fix map_physmem for cached mappings

2016-11-30T15:18:19Z

map_physmem should return a pointer that can be used by the CPU to access the given memory - on MIPS simply returning the physical address as it does prior to this patch doesn't achieve that. Instead return a pointer to the memory within (c)kseg0, which matches up consistently with the (c)kseg1 pointer that uncached mappings return via ioremap. Signed-off-by: Paul Burton

MIPS: Use CPHYSADDR to implement mips32 virt_to_phys

2016-05-31T07:38:11Z

Use CPHYSADDR to implement the virt_to_phys function for converting from a virtual to a physical address for MIPS32, much as is already done for MIPS64. This allows for virt_to_phys to work regardless of whether the address being translated is in kseg0 or kseg1, unlike the previous subtraction based approach which only worked for addresses in kseg0. This allows for drivers to provide an address to virt_to_phys without needing to manually ensure that kseg1 addresses are converted to equivalent kseg0 addresses first. This patch is equivalent to this Linux patch currently waiting to be reviewed & merged: https://patchwork.linux-mips.org/patch/12564/ Signed-off-by: Paul Burton

MIPS: Support dynamic I/O port base address

2016-02-01T21:13:25Z

The existing mips_io_port_base variable isn't suitable for use early during boot since it will be stored in the .data section which may not be writable pre-relocation. Fix this by moving the I/O port base address into struct arch_global_data. In order to avoid adding this field for all targets, make this dependant upon a new Kconfig entry CONFIG_DYNAMIC_IO_PORT_BASE. Malta is the only board which sets a non-zero I/O port base, so select this option only for Malta. Signed-off-by: Paul Burton

MIPS: Remove SLOW_DOWN_IO

2016-02-01T21:13:25Z

CONF_SLOWDOWN_IO is never set for any target, so remove the dead code in the SLOW_DOWN_IO macro. This is done in preparation for changes to mips_io_port_base which can be avoided in this path by removing it entirely. Signed-off-by: Paul Burton

mips: asm/io.h: Add in

2016-01-25T23:52:23Z

As part of the bug.h / BUILD_BUG_* clean up, this file was missed. Signed-off-by: Tom Rini

MIPS: implement bit manipulating I/O accessors

2016-01-16T20:06:46Z

Add support for functions clrbits_X(), setbits_X() and clrsetbits_X() on MIPS. Signed-off-by: Daniel Schwierzeck

MIPS: sync I/O related header files with linux-4.4

2016-01-16T20:06:46Z

Mainly sync asm/io.h to get a working ioremap() implementation as well as the full set of I/O accessors. Pull in additional header files to make this work. Furthermore port over the directory 'arch/mips/include/asm/mach-generic/' with contains default definitions for I/O and memory spaces and default implementations for mapping those spaces. All files in that directory can be overwritten by a SoC/machine. Signed-off-by: Daniel Schwierzeck

MIPS: change 'extern inline' to 'static inline'

2015-07-02T09:29:33Z

The kernel changed it a long time ago. Also this is now broken on gcc-5.x. Reported-by: Andy Kennedy Signed-off-by: Daniel Schwierzeck

include: delete include/linux/config.h

2013-11-08T20:25:13Z

Linux Kernel abolished include/linux/config.h long time ago. (around version v2.6.18..v2.6.19) We don't need to provide Linux copatibility any more. This commit deletes include/linux/config.h and fixes source files not to include this. Signed-off-by: Masahiro Yamada

MIPS: fix __raw_* IO accessors

2013-06-08T21:10:10Z

The purpose of the __raw* IO accessors is to provide IO access in native-endian order. However in the current MIPS implementation, the 16 and 32 bit variants of the __raw accessors are swapping the values on big-endian systems if the CONFIG_SWAP_IO_SPACE option is enabled. The patch changes the IO accessor macros to fix this broken behaviour. Signed-off-by: Gabor Juhos Cc: Daniel Schwierzeck