From: Shiraz Hashim <[email protected]> SPEAr platform provides a provision to control chipselects of ARM PL022 Prime Cell spi controller through its system registers, which otherwise remains under PL022 control which some protocols do not want.
This patch adds spics controller nodes in device tree for various SPEAr13xx SoCs. Cc: Linus Walleij <[email protected]> Signed-off-by: Shiraz Hashim <[email protected]> Reviewed-by: Vipin Kumar <[email protected]> Signed-off-by: Viresh Kumar <[email protected]> --- arch/arm/boot/dts/spear1310.dtsi | 12 ++++++++++++ arch/arm/boot/dts/spear1340.dtsi | 14 ++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/arch/arm/boot/dts/spear1310.dtsi b/arch/arm/boot/dts/spear1310.dtsi index 419ea74..d5661ee 100644 --- a/arch/arm/boot/dts/spear1310.dtsi +++ b/arch/arm/boot/dts/spear1310.dtsi @@ -17,6 +17,18 @@ compatible = "st,spear1310"; ahb { + spics: spics@e0700000{ + compatible = "st,spear-spics-gpio"; + reg = <0xe0700000 0x1000>; + st-spics,peripcfg-reg = <0x3b0>; + st-spics,sw-enable-bit = <12>; + st-spics,cs-value-bit = <11>; + st-spics,cs-enable-mask = <3>; + st-spics,cs-enable-shift = <8>; + gpio-controller; + #gpio-cells = <2>; + }; + ahci@b1000000 { compatible = "snps,spear-ahci"; reg = <0xb1000000 0x10000>; diff --git a/arch/arm/boot/dts/spear1340.dtsi b/arch/arm/boot/dts/spear1340.dtsi index d71fe2a..1604425 100644 --- a/arch/arm/boot/dts/spear1340.dtsi +++ b/arch/arm/boot/dts/spear1340.dtsi @@ -17,6 +17,20 @@ compatible = "st,spear1340"; ahb { + + spics: spics@e0700000{ + compatible = "st,spear-spics-gpio"; + reg = <0xe0700000 0x1000>; + st-spics,peripcfg-reg = <0x42c>; + st-spics,sw-enable-bit = <21>; + st-spics,cs-value-bit = <20>; + st-spics,cs-enable-mask = <3>; + st-spics,cs-enable-shift = <18>; + gpio-controller; + #gpio-cells = <2>; + status = "disabled"; + }; + ahci@b1000000 { compatible = "snps,spear-ahci"; reg = <0xb1000000 0x10000>; -- 1.7.12.rc2.18.g61b472e _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
