[U-Boot] [PATCH 3/3] net: designware: Add reset ctrl to driver

[Ley Foon Tan]

On Fri, Apr 27, 2018 at 4:17 PM, Ley Foon Tan <ley.foon.tan at intel.com> wrote:
> Add code to reset all reset signals as in Ethernet DT node. A reset property is an optional feature,
> so only print out a warning and do not fail if a reset property is not present.
>
> If a reset property is discovered, then use it to deassert, thus bringing the
> IP out of reset.
>
> Signed-off-by: Ley Foon Tan <ley.foon.tan at intel.com>
> ---
>  drivers/net/designware.c |   13 +++++++++++++
>  1 files changed, 13 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/net/designware.c b/drivers/net/designware.c
> index 43670a7..e34f3fb 100644
> --- a/drivers/net/designware.c
> +++ b/drivers/net/designware.c
> @@ -16,6 +16,7 @@
>  #include <miiphy.h>
>  #include <malloc.h>
>  #include <pci.h>
> +#include <reset.h>
>  #include <linux/compiler.h>
>  #include <linux/err.h>
>  #include <linux/kernel.h>
> @@ -713,6 +714,18 @@ int designware_eth_probe(struct udevice *dev)
>         }
>  #endif
>
> +#ifdef CONFIG_DM_RESET
> +       struct reset_ctl_bulk reset_bulk;
> +
> +       ret = reset_get_bulk(dev, &reset_bulk);
> +       if (ret) {
> +               dev_warn(dev, "Can't get reset: %d\n", ret);
> +               return;
Shouldn't return here, will fix in next revision.
> +       }
> +
> +       reset_deassert_bulk(&reset_bulk);
> +#endif
> +
>  #ifdef CONFIG_DM_PCI
>         /*
>          * If we are on PCI bus, either directly attached to a PCI root port,
> --
> 1.7.1
>

Regards
Ley Foon