linux-kernel - Re: [PATCH 2/2] clk: qcom: ipq6018: fix networking resets

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Message-ID: <CAOX2RU7bXm_xry1c0byzkzXw4VNL71d4YrFwUB2xvFWSJLSkLQ@mail.gmail.com>
Date:   Fri, 26 May 2023 22:53:40 +0200
From:   Robert Marko <robimarko@...il.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     andersson@...nel.org, agross@...nel.org, mturquette@...libre.com,
        sboyd@...nel.org, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] clk: qcom: ipq6018: fix networking resets

On Fri, 26 May 2023 at 22:52, Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
>
>
>
> On 26.05.2023 21:08, Robert Marko wrote:
> > Networking resets in IPQ6018 all use bitmask as they require multiple
> > bits to be set and cleared instead of a single bit.
> >
> > So, current networking resets have the same register and bit 0 set which
> > is clearly incorrect.
> >
> > Fixes: d9db07f088af ("clk: qcom: Add ipq6018 Global Clock Controller support")
> > Signed-off-by: Robert Marko <robimarko@...il.com>
> > ---
> >  drivers/clk/qcom/gcc-ipq6018.c | 32 ++++++++++++++++----------------
> >  1 file changed, 16 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/clk/qcom/gcc-ipq6018.c b/drivers/clk/qcom/gcc-ipq6018.c
> > index abd97b939850f..b8310f29a8ff4 100644
> > --- a/drivers/clk/qcom/gcc-ipq6018.c
> > +++ b/drivers/clk/qcom/gcc-ipq6018.c
> > @@ -4520,24 +4520,24 @@ static const struct qcom_reset_map gcc_ipq6018_resets[] = {
> >       [GCC_PCIE0_AHB_ARES] = { 0x75040, 5 },
> >       [GCC_PCIE0_AXI_MASTER_STICKY_ARES] = { 0x75040, 6 },
> >       [GCC_PCIE0_AXI_SLAVE_STICKY_ARES] = { 0x75040, 7 },
> > -     [GCC_PPE_FULL_RESET] = { 0x68014, 0 },
> > -     [GCC_UNIPHY0_SOFT_RESET] = { 0x56004, 0 },
> > +     [GCC_PPE_FULL_RESET] = { .reg = 0x68014, .bitmask = 0xf0000 },
> GENMASK / GENMASK|GENMASK / GENMASK|BIT?

That would explain why I did not send it before, its been on the TODO
list to reverse
the QCA magic values like I did for IPQ8074.

Will do it for v2, thanks.

Regards,
Robert
>
> Konrad
> > +     [GCC_UNIPHY0_SOFT_RESET] = { .reg = 0x56004, .bitmask = 0x3ff2 },
> >       [GCC_UNIPHY0_XPCS_RESET] = { 0x56004, 2 },
> > -     [GCC_UNIPHY1_SOFT_RESET] = { 0x56104, 0 },
> > +     [GCC_UNIPHY1_SOFT_RESET] = { .reg = 0x56104, .bitmask = 0x32 },
> >       [GCC_UNIPHY1_XPCS_RESET] = { 0x56104, 2 },
> > -     [GCC_EDMA_HW_RESET] = { 0x68014, 0 },
> > -     [GCC_NSSPORT1_RESET] = { 0x68014, 0 },
> > -     [GCC_NSSPORT2_RESET] = { 0x68014, 0 },
> > -     [GCC_NSSPORT3_RESET] = { 0x68014, 0 },
> > -     [GCC_NSSPORT4_RESET] = { 0x68014, 0 },
> > -     [GCC_NSSPORT5_RESET] = { 0x68014, 0 },
> > -     [GCC_UNIPHY0_PORT1_ARES] = { 0x56004, 0 },
> > -     [GCC_UNIPHY0_PORT2_ARES] = { 0x56004, 0 },
> > -     [GCC_UNIPHY0_PORT3_ARES] = { 0x56004, 0 },
> > -     [GCC_UNIPHY0_PORT4_ARES] = { 0x56004, 0 },
> > -     [GCC_UNIPHY0_PORT5_ARES] = { 0x56004, 0 },
> > -     [GCC_UNIPHY0_PORT_4_5_RESET] = { 0x56004, 0 },
> > -     [GCC_UNIPHY0_PORT_4_RESET] = { 0x56004, 0 },
> > +     [GCC_EDMA_HW_RESET] = { .reg = 0x68014, .bitmask = 0x300000 },
> > +     [GCC_NSSPORT1_RESET] = { .reg = 0x68014, .bitmask = 0x1000003 },
> > +     [GCC_NSSPORT2_RESET] = { .reg = 0x68014, .bitmask = 0x200000c },
> > +     [GCC_NSSPORT3_RESET] = { .reg = 0x68014, .bitmask = 0x4000030 },
> > +     [GCC_NSSPORT4_RESET] = { .reg = 0x68014, .bitmask = 0x8000300 },
> > +     [GCC_NSSPORT5_RESET] = { .reg = 0x68014, .bitmask = 0x10000c00 },
> > +     [GCC_UNIPHY0_PORT1_ARES] = { .reg = 0x56004, .bitmask = 0x30 },
> > +     [GCC_UNIPHY0_PORT2_ARES] = { .reg = 0x56004, .bitmask = 0xc0 },
> > +     [GCC_UNIPHY0_PORT3_ARES] = { .reg = 0x56004, .bitmask = 0x300 },
> > +     [GCC_UNIPHY0_PORT4_ARES] = { .reg = 0x56004, .bitmask = 0xc00 },
> > +     [GCC_UNIPHY0_PORT5_ARES] = { .reg = 0x56004, .bitmask = 0x3000 },
> > +     [GCC_UNIPHY0_PORT_4_5_RESET] = { .reg = 0x56004, .bitmask = 0x3c02 },
> > +     [GCC_UNIPHY0_PORT_4_RESET] = { .reg = 0x56004, .bitmask = 0xc02 },
> >       [GCC_LPASS_BCR] = {0x1F000, 0},
> >       [GCC_UBI32_TBU_BCR] = {0x65000, 0},
> >       [GCC_LPASS_TBU_BCR] = {0x6C000, 0},