From: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
The NAND controller used in A7K/A8K is present on the CP110 master part.
It is compatible with the pxa3xx_nand driver but requires the use of the
marvell,armada-8k-nand compatible string due to the need to first enable
the NAND controller.
Add properties to the NAND node to fit the bindings constraints of the
pxa3xx_nand driver and enable the NAND controller.
Add the 'marvell,system-controller' property to the cp110 master NAND
node with a reference to the syscon node. This is new compared to other
boards using the pxa3xx_nand driver and it is needed to be bootloader
independent and enable the NAND controller from the NAND controller
driver itself by writing in these syscon registers.
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
[miquel.raynal@xxxxxxxxxxxxxxxxxx: add NAND ready/busy MPP subnode,
change compatible string to fit the needs of the A7k/A8k SoCs and add
the system controller property]
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/marvell/armada-7040-db.dts | 24 ++++++++++++++++++++++
arch/arm64/boot/dts/marvell/armada-70x0.dtsi | 14 +++++++++++++
.../boot/dts/marvell/armada-cp110-master.dtsi | 3 ++-
3 files changed, 40 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/marvell/armada-7040-db.dts b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
index 9c3bdf87e543..b98cf265bae5 100644
--- a/arch/arm64/boot/dts/marvell/armada-7040-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
@@ -144,6 +144,30 @@
};
};
+&cpm_nand {
+ status = "okay";
+ num-cs = <1>;
+ pinctrl-0 = <&nand_pins>, <&nand_rb>;
+ pinctrl-names = "default";
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+ marvell,nand-enable-arbiter;
+ nand-on-flash-bbt;
+
+ partition@0 {
+ label = "U-Boot";
+ reg = <0 0x200000>;
+ };
+ partition@200000 {
+ label = "Linux";
+ reg = <0x200000 0xe00000>;
+ };
+ partition@1000000 {
+ label = "Filesystem";
+ reg = <0x1000000 0x3f000000>;
+ };
+};
+
&cpm_spi1 {
status = "okay";
diff --git a/arch/arm64/boot/dts/marvell/armada-70x0.dtsi b/arch/arm64/boot/dts/marvell/armada-70x0.dtsi
index 860b6ae9dcc5..0e1a1e5be399 100644
--- a/arch/arm64/boot/dts/marvell/armada-70x0.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-70x0.dtsi
@@ -64,5 +64,19 @@
&cpm_syscon0 {
cpm_pinctrl: pinctrl {
compatible = "marvell,armada-7k-pinctrl";
+
+ nand_pins: nand-pins {
+ marvell,pins =
+ "mpp15", "mpp16", "mpp17", "mpp18",
+ "mpp19", "mpp20", "mpp21", "mpp22",
+ "mpp23", "mpp24", "mpp25", "mpp26",
+ "mpp27";
+ marvell,function = "dev";
+ };
+
+ nand_rb: nand-rb {
+ marvell,pins = "mpp13";
+ marvell,function = "nf";
+ };
};
};
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
index 8263a8a504a8..d41b41b613ec 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
@@ -274,12 +274,13 @@
* this controller is only usable on the CPM
* for A7K and on the CPS for A8K.
*/
- compatible = "marvell,armada370-nand";
+ compatible = "marvell,armada-8k-nand";
reg = <0x720000 0x54>;
#address-cells = <1>;
#size-cells = <1>;
interrupts = <ICU_GRP_NSR 115 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpm_clk 1 2>;
+ marvell,system-controller = <&cpm_syscon0>;
status = "disabled";
};
--
2.11.0
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