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Date:   Tue, 5 May 2020 13:59:09 +0200
From:   Anders Roxell <anders.roxell@...aro.org>
To:     Grygorii Strashko <grygorii.strashko@...com>
Cc:     Richard Cochran <richardcochran@...il.com>,
        Murali Karicheri <m-karicheri2@...com>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Tero Kristo <t-kristo@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Networking <netdev@...r.kernel.org>,
        Sekhar Nori <nsekhar@...com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Nishanth Menon <nm@...com>
Subject: Re: [PATCH net-next 3/7] net: ethernet: ti: am65-cpsw-nuss: enable
 packet timestamping support

On Tue, 5 May 2020 at 13:16, Anders Roxell <anders.roxell@...aro.org> wrote:
>
> On Tue, 5 May 2020 at 13:05, Grygorii Strashko <grygorii.strashko@...com> wrote:
> >
> > hi Anders,
>
> Hi Grygorii,

Hi again,

>
> >
> > On 05/05/2020 13:17, Anders Roxell wrote:
> > > On Fri, 1 May 2020 at 22:50, Grygorii Strashko <grygorii.strashko@...com> wrote:
> > >>
> > >> The MCU CPSW Common Platform Time Sync (CPTS) provides possibility to
> > >> timestamp TX PTP packets and all RX packets.
> > >>
> > >> This enables corresponding support in TI AM65x/J721E MCU CPSW driver.
> > >>
> > >> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
> > >> ---
> > >>   drivers/net/ethernet/ti/Kconfig             |   1 +
> > >>   drivers/net/ethernet/ti/am65-cpsw-ethtool.c |  24 ++-
> > >>   drivers/net/ethernet/ti/am65-cpsw-nuss.c    | 172 ++++++++++++++++++++
> > >>   drivers/net/ethernet/ti/am65-cpsw-nuss.h    |   6 +-
> > >>   4 files changed, 201 insertions(+), 2 deletions(-)
> > >>
> > >> diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
> > >> index 1f4e5b6dc686..2c7bd1ccaaec 100644
> > >> --- a/drivers/net/ethernet/ti/Kconfig
> > >> +++ b/drivers/net/ethernet/ti/Kconfig
> > >> @@ -100,6 +100,7 @@ config TI_K3_AM65_CPSW_NUSS
> > >>          depends on ARCH_K3 && OF && TI_K3_UDMA_GLUE_LAYER
> > >>          select TI_DAVINCI_MDIO
> > >>          imply PHY_TI_GMII_SEL
> > >> +       imply TI_AM65_CPTS
> > >
> > > Should this be TI_K3_AM65_CPTS ?

instead of 'imply TI_K3_AM65_CPTS' don't you want to do this:
'depends on TI_K3_AM65_CPTS || !TI_K3_AM65_CPTS'


Cheers,
Anders

> > >
> > > I did an arm64 allmodconfig build on todays next tag: next-20200505
> > > and got this undefined symbol:
> > >
> > > aarch64-linux-gnu-ld: drivers/net/ethernet/ti/am65-cpsw-nuss.o: in
> > > function `am65_cpsw_init_cpts':
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-nuss.c:1685:
> > > undefined reference to `am65_cpts_create'
> > > aarch64-linux-gnu-ld:
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-nuss.c:1685:(.text+0x2e20):
> > > relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol
> > > `am65_cpts_create'
> > > aarch64-linux-gnu-ld: drivers/net/ethernet/ti/am65-cpsw-nuss.o: in
> > > function `am65_cpsw_nuss_tx_compl_packets':
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-nuss.c:923:
> > > undefined reference to `am65_cpts_tx_timestamp'
> > > aarch64-linux-gnu-ld:
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-nuss.c:923:(.text+0x4cf0):
> > > relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol
> > > `am65_cpts_tx_timestamp'
> > > aarch64-linux-gnu-ld: drivers/net/ethernet/ti/am65-cpsw-nuss.o: in
> > > function `am65_cpsw_nuss_ndo_slave_xmit':
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-nuss.c:1018:
> > > undefined reference to `am65_cpts_prep_tx_timestamp'
> > > aarch64-linux-gnu-ld:
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-nuss.c:1018:(.text+0x58fc):
> > > relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol
> > > `am65_cpts_prep_tx_timestamp'
> > > aarch64-linux-gnu-ld: drivers/net/ethernet/ti/am65-cpsw-nuss.o: in
> > > function `am65_cpsw_nuss_hwtstamp_set':
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-nuss.c:1265:
> > > undefined reference to `am65_cpts_rx_enable'
> > > aarch64-linux-gnu-ld:
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-nuss.c:1265:(.text+0x7564):
> > > relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol
> > > `am65_cpts_rx_enable'
> > > aarch64-linux-gnu-ld: drivers/net/ethernet/ti/am65-cpsw-ethtool.o: in
> > > function `am65_cpsw_get_ethtool_ts_info':
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-ethtool.c:713:
> > > undefined reference to `am65_cpts_phc_index'
> > > aarch64-linux-gnu-ld:
> > > /srv/src/kernel/next/obj-arm64-next-20200505/../drivers/net/ethernet/ti/am65-cpsw-ethtool.c:713:(.text+0xbe8):
> > > relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol
> > > `am65_cpts_phc_index'
> > > make[1]: *** [/srv/src/kernel/next/Makefile:1114: vmlinux] Error 1
> > > make[1]: Target 'Image' not remade because of errors.
> > > make: *** [Makefile:180: sub-make] Error 2
> > > make: Target 'Image' not remade because of errors.
> >
> > Sry, I can't reproduce it net-next.
>
> Oh I forgot to try net-next, sorry.
>
> > trying next...
>
> Thank you.
>
> > What's your config?
>
> This is the config [1] I used.
>
> Cheers,
> Anders
> [1] https://people.linaro.org/~anders.roxell/kernel-next-20200505.config
>
> >
> > --
> > Best regards,
> > grygorii

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