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g14mr36067987ejp.103.1568309074890; Thu, 12 Sep 2019 10:24:34 -0700 (PDT) Received: from ziggy.stardust ([37.223.145.235]) by smtp.gmail.com with ESMTPSA id m13sm4829069edr.15.2019.09.12.10.24.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 Sep 2019 10:24:34 -0700 (PDT) Subject: Re: [PATCH V2 05/13] clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support To: Stefan Wahren , Eric Anholt , Florian Fainelli , Ray Jui , Scott Branden , Wolfram Sang , Rob Herring , Mark Rutland , Michael Turquette , Stephen Boyd Cc: devicetree@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org References: <1565713248-4906-1-git-send-email-wahrenst@gmx.net> <1565713248-4906-6-git-send-email-wahrenst@gmx.net> From: Matthias Brugger Openpgp: preference=signencrypt Autocrypt: addr=matthias.bgg@gmail.com; prefer-encrypt=mutual; keydata= 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12 Sep 2019 19:24:32 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <1565713248-4906-6-git-send-email-wahrenst@gmx.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org On 13/08/2019 18:20, Stefan Wahren wrote: > The new BCM2711 supports an additional clock for the emmc2 block. > So add a new compatible and register this clock only for BCM2711. > > Signed-off-by: Stefan Wahren > Reviewed-by: Matthias Brugger > Acked-by: Eric Anholt > --- > drivers/clk/bcm/clk-bcm2835.c | 20 +++++++++++++++++++- > 1 file changed, 19 insertions(+), 1 deletion(-) > > diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c > index 21cd952..fdf672a 100644 > --- a/drivers/clk/bcm/clk-bcm2835.c > +++ b/drivers/clk/bcm/clk-bcm2835.c > @@ -114,6 +114,8 @@ > #define CM_AVEODIV 0x1bc > #define CM_EMMCCTL 0x1c0 > #define CM_EMMCDIV 0x1c4 > +#define CM_EMMC2CTL 0x1d0 > +#define CM_EMMC2DIV 0x1d4 > > /* General bits for the CM_*CTL regs */ > # define CM_ENABLE BIT(4) > @@ -290,7 +292,8 @@ > #define BCM2835_MAX_FB_RATE 1750000000u > > #define SOC_BCM2835 BIT(0) > -#define SOC_ALL (SOC_BCM2835) > +#define SOC_BCM2711 BIT(1) > +#define SOC_ALL (SOC_BCM2835 | SOC_BCM2711) > > /* > * Names of clocks used within the driver that need to be replaced > @@ -2003,6 +2006,16 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > .frac_bits = 8, > .tcnt_mux = 39), > > + /* EMMC2 clock (only available for BCM2711) */ > + [BCM2711_CLOCK_EMMC2] = REGISTER_PER_CLK( > + SOC_BCM2711, > + .name = "emmc2", > + .ctl_reg = CM_EMMC2CTL, > + .div_reg = CM_EMMC2DIV, > + .int_bits = 4, > + .frac_bits = 8, > + .tcnt_mux = 42), > + > /* General purpose (GPIO) clocks */ > [BCM2835_CLOCK_GP0] = REGISTER_PER_CLK( > SOC_ALL, > @@ -2238,8 +2251,13 @@ static const struct cprman_plat_data cprman_bcm2835_plat_data = { > .soc = SOC_BCM2835, > }; > > +static const struct cprman_plat_data cprman_bcm2711_plat_data = { > + .soc = SOC_BCM2711, > +}; > + > static const struct of_device_id bcm2835_clk_of_match[] = { > { .compatible = "brcm,bcm2835-cprman", .data = &cprman_bcm2835_plat_data }, > + { .compatible = "brcm,bcm2711-cprman", .data = &cprman_bcm2711_plat_data }, Because the RPi4 FW uses bcm2838-cprman as compatible, we will need to add this here as well. Regards, Matthias > {} > }; > MODULE_DEVICE_TABLE(of, bcm2835_clk_of_match); > -- > 2.7.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >