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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 <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Stefan Agner 2016-04-01 23:13:40 -07:00 committed by Shawn Guo
parent 9b1a1779e9
commit 6d20b24a2b
3 changed files with 10 additions and 2 deletions
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2
arch/arm/boot/dts/vf-colibri.dtsi
View File

@ -130,8 +130,6 @@ &i2c0 {
};
&nfc {
assigned-clocks = <&clks VF610_CLK_NFC>;
assigned-clock-rates = <33000000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_nfc>;
status = "okay";

5
arch/arm/boot/dts/vf500-colibri.dtsi
View File

@ -69,6 +69,11 @@ touchscreen: vf50-touchscreen {
};
};
&nfc {
assigned-clocks = <&clks VF610_CLK_NFC>;
assigned-clock-rates = <33000000>;
};
&iomuxc {
vf610-colibri {
pinctrl_touchctrl_idle: touchctrl_idle {

5
arch/arm/boot/dts/vf610-colibri.dtsi
View File

@ -50,3 +50,8 @@ memory {
reg = <0x80000000 0x10000000>;
};
};
&nfc {
assigned-clocks = <&clks VF610_CLK_NFC>;
assigned-clock-rates = <50000000>;
};