[PATCH 4/5] ARM: dts: vf610: add NAND flash controller peripherial

Stefan Agner
2015-03-04T23:10:23Z

This adds the NAND flash controller (NFC) peripherial. The driver
supports the SLC NAND chips found on Freescale's Vybrid Tower System
Module. The Micron NAND chip on the module needs 4-bit ECC per 512
byte page. Use 24-bit ECC per 2k page, which is supported by the
driver.

Signed-off-by: Bill Pringlemeir <bpringlemeir@nbsps.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
---
arch/arm/boot/dts/vf500.dtsi | 4 ++++
arch/arm/boot/dts/vf610-twr.dts | 43 +++++++++++++++++++++++++++++++++++++++++
arch/arm/boot/dts/vfxxx.dtsi | 7 +++++++
3 files changed, 54 insertions(+)

diff --git a/arch/arm/boot/dts/vf500.dtsi b/arch/arm/boot/dts/vf500.dtsi
index 1dbf8d2..1aa1e47 100644
--- a/arch/arm/boot/dts/vf500.dtsi
+++ b/arch/arm/boot/dts/vf500.dtsi
@@ -118,6 +118,10 @@
interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
};

+&nfc {
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+};
+
&pit {
interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
};
diff --git a/arch/arm/boot/dts/vf610-twr.dts b/arch/arm/boot/dts/vf610-twr.dts
index f64fddc..704564e 100644
--- a/arch/arm/boot/dts/vf610-twr.dts
+++ b/arch/arm/boot/dts/vf610-twr.dts
@@ -287,6 +287,49 @@
status = "okay";
};

+&iomuxc {
+ vf610-twr {
+ pinctrl_nfc_1: nfcgrp_1 {
+ fsl,pins = <
+ VF610_PAD_PTD31__NF_IO15 0x28df
+ VF610_PAD_PTD30__NF_IO14 0x28df
+ VF610_PAD_PTD29__NF_IO13 0x28df
+ VF610_PAD_PTD28__NF_IO12 0x28df
+ VF610_PAD_PTD27__NF_IO11 0x28df
+ VF610_PAD_PTD26__NF_IO10 0x28df
+ VF610_PAD_PTD25__NF_IO9 0x28df
+ VF610_PAD_PTD24__NF_IO8 0x28df
+ VF610_PAD_PTD23__NF_IO7 0x28df
+ VF610_PAD_PTD22__NF_IO6 0x28df
+ VF610_PAD_PTD21__NF_IO5 0x28df
+ VF610_PAD_PTD20__NF_IO4 0x28df
+ VF610_PAD_PTD19__NF_IO3 0x28df
+ VF610_PAD_PTD18__NF_IO2 0x28df
+ VF610_PAD_PTD17__NF_IO1 0x28df
+ VF610_PAD_PTD16__NF_IO0 0x28df
+ VF610_PAD_PTB24__NF_WE_B 0x28c2
+ VF610_PAD_PTB25__NF_CE0_B 0x28c2
+ VF610_PAD_PTB27__NF_RE_B 0x28c2
+ VF610_PAD_PTC26__NF_RB_B 0x283d
+ VF610_PAD_PTC27__NF_ALE 0x28c2
+ VF610_PAD_PTC28__NF_CLE 0x28c2
+ >;
+ };
+ };
+};
+
+&nfc {
+ clock-frequency = <33000000>;
+ nand-bus-width = <16>;
+ nand-ecc-mode = "hw";
+ nand-on-flash-bbt;
+ nand-ecc-strength = <24>;
+ nand-ecc-step-size = <2048>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nfc_1>;
+ status = "okay";
+};
+
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
diff --git a/arch/arm/boot/dts/vfxxx.dtsi b/arch/arm/boot/dts/vfxxx.dtsi
index a29c7ce..03b4b55 100644
--- a/arch/arm/boot/dts/vfxxx.dtsi
+++ b/arch/arm/boot/dts/vfxxx.dtsi
@@ -458,6 +458,13 @@
status = "disabled";
};

+ nfc: nand at 400e0000 {
+ compatible = "fsl,vf610-nfc";
+ reg = <0x400e0000 0x4000>;
+ clocks = <&clks VF610_CLK_NFC>;
+ clock-names = "nfc";
+ status = "disabled";
+ };
};
};
};
--
2.3.0