[PATCH v4 17/25] net: mediatek: remap iobase address

[Ramon Fried]

On Tue, May 10, 2022 at 3:20 PM Weijie Gao <weijie.gao at mediatek.com> wrote:
>
> The iobase address from dts node is actually physical address. It's
> identical to the virtual address in ARM platform. This is ok because this
> driver was used only by ARM platforms (mt7622/mt7623 ...).
>
> But now this driver will be used by mt7621 which is a MIPS SoC. For MIPS
> platform the physical address space is mapped to KSEG0 and KSEG1 and this
> makes the virtual address apparently not idential to its physical address.
>
> To solve this issue, this patch replaces dev_read_addr with dev_remap_addr
> to get the remapped iobase address.
>
> Signed-off-by: Weijie Gao <weijie.gao at mediatek.com>
> ---
> v4 changes: new
> ---
>  drivers/net/mtk_eth.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/mtk_eth.c b/drivers/net/mtk_eth.c
> index 666ddeb10d..caa83b7cec 100644
> --- a/drivers/net/mtk_eth.c
> +++ b/drivers/net/mtk_eth.c
> @@ -1419,7 +1419,7 @@ static int mtk_eth_of_to_plat(struct udevice *dev)
>
>         priv->soc = dev_get_driver_data(dev);
>
> -       pdata->iobase = dev_read_addr(dev);
> +       pdata->iobase = (phys_addr_t)dev_remap_addr(dev);
>
>         /* get corresponding ethsys phandle */
>         ret = dev_read_phandle_with_args(dev, "mediatek,ethsys", NULL, 0, 0,
> --
> 2.17.1
>
Reviewed-by: Ramon Fried <rfried.dev at gmail.com>