Hi Oleksij,
On Mon, Aug 07, 2017 at 04:39:18PM +0200, Oleksij Rempel wrote:
> From: Antony Pavlov <antonynpavlov@xxxxxxxxx>
>
> Signed-off-by: Antony Pavlov <antonynpavlov@xxxxxxxxx>
> Signed-off-by: Peter Mamonov <pmamonov@xxxxxxxxx>
> ---
> arch/mips/include/asm/io.h | 35 +++++++++++++++++++++++++++++++++++
> 1 file changed, 35 insertions(+)
>
> diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
> index 4bee5913a..993b30e2a 100644
> --- a/arch/mips/include/asm/io.h
> +++ b/arch/mips/include/asm/io.h
> @@ -12,11 +12,46 @@
>
> #include <linux/compiler.h>
> #include <asm/types.h>
> +#include <asm/addrspace.h>
> #include <asm/byteorder.h>
>
> void dma_flush_range(unsigned long, unsigned long);
> void dma_inv_range(unsigned long, unsigned long);
>
> +/*
> + * virt_to_phys - map virtual addresses to physical
> + * @address: address to remap
> + *
> + * The returned physical address is the physical (CPU) mapping for
> + * the memory address given. It is only valid to use this function on
> + * addresses directly mapped or allocated via kmalloc.
> + *
> + * This function does not give bus mappings for DMA transfers. In
> + * almost all conceivable cases a device driver should not be using
> + * this function
> + */
> +static inline unsigned long virt_to_phys(const void *address)
> +{
> + return (unsigned long)address & 0x1fffffff;
Guess we can use CPHYSADDR() macros here, which is available in barebox.
> +}
> +
> +/*
> + * phys_to_virt - map physical address to virtual
> + * @address: address to remap
> + *
> + * The returned virtual address is a current CPU mapping for
> + * the memory address given. It is only valid to use this function on
> + * addresses that have a kernel mapping
> + *
> + * This function does not handle bus mappings for DMA transfers. In
> + * almost all conceivable cases a device driver should not be using
> + * this function
> + */
> +static inline void *phys_to_virt(unsigned long address)
> +{
> + return (void *)(KSEG0 | (address & 0x1fffffff));
Same here: there is a CKSEG0ADDR() macros available in barebox.
> +}
> +
> #define IO_SPACE_LIMIT 0
>
> /*****************************************************************************/
> --
> 2.11.0
>
Regards,
Peter
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