linux-kernel - Re: [PATCH 11/12] soc: mediatek: pm-domains: Add support for mt8183

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Date:   Fri, 25 Sep 2020 15:37:34 +0800
From:   Hsin-Yi Wang <hsinyi@...omium.org>
To:     Matthias Brugger <matthias.bgg@...il.com>
Cc:     Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        lkml <linux-kernel@...r.kernel.org>,
        Collabora Kernel ML <kernel@...labora.com>,
        Fabien Parent <fparent@...libre.com>,
        Nicolas Boichat <drinkcat@...omium.org>, weiyi.lu@...iatek.com,
        Matthias Brugger <mbrugger@...e.com>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH 11/12] soc: mediatek: pm-domains: Add support for mt8183

On Wed, Sep 16, 2020 at 8:19 PM Matthias Brugger <matthias.bgg@...il.com> wrote:
>
>
>
> On 16/09/2020 11:46, Matthias Brugger wrote:
> >
> >
> > On 10/09/2020 19:28, Enric Balletbo i Serra wrote:
> >> From: Matthias Brugger <mbrugger@...e.com>
> >>
> >> Add the needed board data to support mt8183 SoC.
> >>
> >> Signed-off-by: Matthias Brugger <mbrugger@...e.com>
> >> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> >> ---
> >>
> >>   drivers/soc/mediatek/mtk-pm-domains.c | 162 ++++++++++++++++++++++++++
> >>   include/linux/soc/mediatek/infracfg.h |  28 +++++
> >>   2 files changed, 190 insertions(+)
> >>
> >> diff --git a/drivers/soc/mediatek/mtk-pm-domains.c
> >> b/drivers/soc/mediatek/mtk-pm-domains.c
> >> index 29e88adc8ea6..aa434f616fee 100644
> >> --- a/drivers/soc/mediatek/mtk-pm-domains.c
> >> +++ b/drivers/soc/mediatek/mtk-pm-domains.c
> > [...]
> >> +/*
> >> + * MT8183 power domain support
> >> + */
> >> +static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
> >> +    [MT8183_POWER_DOMAIN_AUDIO] = {
> >> +        .sta_mask = PWR_STATUS_AUDIO,
> >> +        .ctl_offs = 0x0314,
> >> +        .sram_pdn_bits = GENMASK(11, 8),
> >> +        .sram_pdn_ack_bits = GENMASK(15, 12),
> >> +    },
> >> +    [MT8183_POWER_DOMAIN_CONN] = {
> >> +        .sta_mask = PWR_STATUS_CONN,
> >> +        .ctl_offs = 0x032c,
> >> +        .sram_pdn_bits = 0,
> >> +        .sram_pdn_ack_bits = 0,
> >> +        .bp_infracfg = {
> >> +            BUS_PROT_WR(MT8183_TOP_AXI_PROT_EN_CONN, 0x2a0, 0x2a4, 0x228),
> >
> > We have repeating values triplets for set, clear and status register in infracfg
> > and SMI.
> >
> > Weiyi can you help to get names to this registers? I wasn't able to find
> > anything in the datasheet.
>
> I think for the infracfg part I figured it out:
>
> #define INFRA_TOPAXI_PROTECTEN_SET      0x2a0
> #define INFRA_TOPAXI_PROTECTEN_CLR      0x2a4
> #define INFRA_TOPAXI_PROTECTEN_STA1     0x228
>
> #define INFRA_TOPAXI_PROTECTEN_1_SET    0x2a8
> #define INFRA_TOPAXI_PROTECTEN_1_CLR    0x2ac
> #define INFRA_TOPAXI_PROTECTEN_STA1_1   0x258
>
> #define INFRA_TOPAXI_PROTECTEN_MCU_SET  0x2d4
> #define INFRA_TOPAXI_PROTECTEN_MCU_CLR  0x2d8
> #define INFRA_TOPAXI_PROTECTEN_MM_STA1  0x2ec
>
> Weiyi, can you still provide the register names for the SMI?
>
> Thanks in advance!
> Matthias
>
Hi Matthias,

SMI names are
#define SMI_COMMON_CLAMP_EN 0x3c0
#define SMI_COMMON_CLAMP_EN_SET 0x3c4
#define SMI_COMMON_CLAMP_EN_CLR 0x3c8

Thanks