From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kishon Vijay Abraham I Subject: [PATCH 6/7] ARM: dts: dra7: Add "max-frequency" property to MMC dt nodes Date: Thu, 1 Jun 2017 20:04:00 +0530 Message-ID: <20170601143401.16852-7-kishon@ti.com> References: <20170601143401.16852-1-kishon@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20170601143401.16852-1-kishon-l0cyMroinI0@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Tony Lindgren , Rob Herring , nsekhar-l0cyMroinI0@public.gmane.org Cc: Russell King , linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kishon-l0cyMroinI0@public.gmane.org List-Id: linux-mmc@vger.kernel.org Add "max-frequency" property to MMC dt nodes and set the maximum frequency to 192MHz for MMC1/MMC2, 64MHz for MMC3 and 192MHz for MMC4. pdata quirks must be utilized to detect presence of rev 1.1/1.0 of silicon and adjust maximum frequencies as per restrictions documented in i843. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Sekhar Nori --- arch/arm/boot/dts/dra7.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index e7144662af45..c09a91e77f53 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -1037,6 +1037,7 @@ dma-names = "tx", "rx"; status = "disabled"; pbias-supply = <&pbias_mmc_reg>; + max-frequency = <192000000>; }; mmc2: mmc@480b4000 { @@ -1048,6 +1049,7 @@ dmas = <&sdma_xbar 47>, <&sdma_xbar 48>; dma-names = "tx", "rx"; status = "disabled"; + max-frequency = <192000000>; }; mmc3: mmc@480ad000 { @@ -1059,6 +1061,8 @@ dmas = <&sdma_xbar 77>, <&sdma_xbar 78>; dma-names = "tx", "rx"; status = "disabled"; + /* Errata i887 limits max-frequency of MMC3 to 64 MHz */ + max-frequency = <64000000>; }; mmc4: mmc@480d1000 { @@ -1070,6 +1074,7 @@ dmas = <&sdma_xbar 57>, <&sdma_xbar 58>; dma-names = "tx", "rx"; status = "disabled"; + max-frequency = <192000000>; }; mmu0_dsp1: mmu@40d01000 { -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html