Re: [PATCH 3/6] MIPS: ralink: set PCI_IOBASE to 'mips_io_port_base'
From: Arnd Bergmann
Date: Sat Sep 25 2021 - 13:33:04 EST
On Fri, Sep 24, 2021 at 11:11 PM Sergio Paracuellos
<sergio.paracuellos@xxxxxxxxx> wrote:
>
> By default MIPS architecture use function 'set_io_port_base()' to set the
> virtual address of the first IO port. This function at the end sets variable
> 'mips_io_port_base' with the desired address. To align things and allow
> to change first IO port location address for PCI, set PCI_IOBASE definition
> as 'mips_io_port_base'. Also, we only need a size of 64 KB.
>
> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx>
> ---
> arch/mips/include/asm/mach-ralink/spaces.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/mips/include/asm/mach-ralink/spaces.h b/arch/mips/include/asm/mach-ralink/spaces.h
> index 87d085c9ad61..05d14c21c417 100644
> --- a/arch/mips/include/asm/mach-ralink/spaces.h
> +++ b/arch/mips/include/asm/mach-ralink/spaces.h
> @@ -2,8 +2,8 @@
> #ifndef __ASM_MACH_RALINK_SPACES_H_
> #define __ASM_MACH_RALINK_SPACES_H_
>
> -#define PCI_IOBASE _AC(0xa0000000, UL)
> -#define PCI_IOSIZE SZ_16M
> +#define PCI_IOBASE mips_io_port_base
> +#define PCI_IOSIZE SZ_64K
> #define IO_SPACE_LIMIT (PCI_IOSIZE - 1)
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>