linux-kernel - Re: [PATCH 2/4] mips: bmips: add BCM63268 timer reset definitions

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Message-ID: <f60cc3a8-9629-3659-c3e5-4a42a588b63e@gmail.com>
Date:   Sun, 7 Mar 2021 11:08:20 +0100
From:   Álvaro Fernández Rojas <noltari@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     jonas.gorski@...il.com,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Maxime Ripard <maxime@...no.tech>,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Stefan Wahren <stefan.wahren@...e.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] mips: bmips: add BCM63268 timer reset definitions

Hi Rob,

El 06/03/2021 a las 22:17, Rob Herring escribió:
> On Thu, Feb 25, 2021 at 08:41:59PM +0100, Álvaro Fernández Rojas wrote:
>> Add missing timer reset definitions for BCM63268.
>>
>> Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
>> ---
>>   include/dt-bindings/reset/bcm63268-reset.h | 4 ++++
>>   1 file changed, 4 insertions(+)
>>
>> diff --git a/include/dt-bindings/reset/bcm63268-reset.h b/include/dt-bindings/reset/bcm63268-reset.h
>> index 6a6403a4c2d5..d87a7882782a 100644
>> --- a/include/dt-bindings/reset/bcm63268-reset.h
>> +++ b/include/dt-bindings/reset/bcm63268-reset.h
>> @@ -23,4 +23,8 @@
>>   #define BCM63268_RST_PCIE_HARD	17
>>   #define BCM63268_RST_GPHY	18
>>   
>> +#define BCM63268_TRST_SW	29
>> +#define BCM63268_TRST_HW	30
>> +#define BCM63268_TRST_POR	31
> 
> Numbering should be local to the provider, so shouldn't this be 0-2?
> Unless these numbers correspond to something in the h/w (bit positions
> for example).

Numbering corresponds to bit positions in the HW:
     uint32        ClkRstCtl;
#define POR_RESET_STATUS            (1 << 31)
#define HW_RESET_STATUS             (1 << 30)
#define SW_RESET_STATUS             (1 << 29)
#define USB_REF_CLKEN               (1 << 18)
#define UTO_EXTIN_CLKEN             (1 << 17)
#define UTO_CLK50_SEL               (1 << 16)
#define FAP2_PLL_CLKEN              (1 << 15)
#define FAP2_PLL_FREQ_SHIFT         12
#define FAP1_PLL_CLKEN              (1 << 11)
#define FAP1_PLL_FREQ_SHIFT         8
#define WAKEON_DSL                  (1 << 7)
#define WAKEON_EPHY                 (1 << 6)
#define DSL_ENERGY_DETECT_ENABLE    (1 << 4)
#define GPHY_1_ENERGY_DETECT_ENABLE (1 << 3)
#define EPHY_3_ENERGY_DETECT_ENABLE (1 << 2)
#define EPHY_2_ENERGY_DETECT_ENABLE (1 << 1)
#define EPHY_1_ENERGY_DETECT_ENABLE (1 << 0)

http://datashed.science/misc/bcm/gpl/broadcom-sdk-416L05/shared/opensource/include/bcm963xx/63268_map_part.h

> 
>> +
>>   #endif /* __DT_BINDINGS_RESET_BCM63268_H */
>> -- 
>> 2.20.1
>>

Best regards,
Álvaro.