From 6d20b24a2b3edc361e651ab87de5071d4b1b24c3 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Fri, 1 Apr 2016 23:13:40 -0700 Subject: [PATCH] ARM: dts: vf-colibri: increase NAND clock speed The NAND flash memory populated on Colibri VF61 allows faster NAND timings than the flash memory on VF50. Additionally, due to divider limitations, VF61 did clock the flash even slower than VF50. Assign the NFC clock in the module specific device trees vf500-colibri.dtsi and vf610-colibri.dtsi respectively. This increases raw read speed on Colibri VF61 by about 20%. Signed-off-by: Stefan Agner Signed-off-by: Shawn Guo --- arch/arm/boot/dts/vf-colibri.dtsi | 2 -- arch/arm/boot/dts/vf500-colibri.dtsi | 5 +++++ arch/arm/boot/dts/vf610-colibri.dtsi | 5 +++++ 3 files changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi index 7529dd7f6db1..226a86ffd3c9 100644 --- a/arch/arm/boot/dts/vf-colibri.dtsi +++ b/arch/arm/boot/dts/vf-colibri.dtsi @@ -130,8 +130,6 @@ }; &nfc { - assigned-clocks = <&clks VF610_CLK_NFC>; - assigned-clock-rates = <33000000>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_nfc>; status = "okay"; diff --git a/arch/arm/boot/dts/vf500-colibri.dtsi b/arch/arm/boot/dts/vf500-colibri.dtsi index 3fe1f48c2aec..1a8a0efa19a6 100644 --- a/arch/arm/boot/dts/vf500-colibri.dtsi +++ b/arch/arm/boot/dts/vf500-colibri.dtsi @@ -69,6 +69,11 @@ }; }; +&nfc { + assigned-clocks = <&clks VF610_CLK_NFC>; + assigned-clock-rates = <33000000>; +}; + &iomuxc { vf610-colibri { pinctrl_touchctrl_idle: touchctrl_idle { diff --git a/arch/arm/boot/dts/vf610-colibri.dtsi b/arch/arm/boot/dts/vf610-colibri.dtsi index ab4a29f95593..9ec9e337f5a8 100644 --- a/arch/arm/boot/dts/vf610-colibri.dtsi +++ b/arch/arm/boot/dts/vf610-colibri.dtsi @@ -50,3 +50,8 @@ reg = <0x80000000 0x10000000>; }; }; + +&nfc { + assigned-clocks = <&clks VF610_CLK_NFC>; + assigned-clock-rates = <50000000>; +}; -- 2.20.1