This adds DT support for the NAND connected to the SoC AEMIF.
Passed torture hashing a 40MB file on top of UBIFS using subpages.
Signed-off-by: Karl Beldan <kbeldan@xxxxxxxxxxxx>
---
v2:
- Removed comments pertaining to the BSP the LCDK ships with (Sekhar)
- s/"ok"/"okay"/
- Removed partitions since it relates to the BSP the LCDK ships with and
also removed the references to the shortcomings of davinci_nand wrt DT
parsing vs scan_ident (use of ti,davinci-ecc* vs nand-ecc*)
- use 4-bit ECC (since I have sent a fix for the driver)
arch/arm/boot/dts/da850-lcdk.dts | 53 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts
index 7563260..1665eee 100644
--- a/arch/arm/boot/dts/da850-lcdk.dts
+++ b/arch/arm/boot/dts/da850-lcdk.dts
@@ -63,6 +63,27 @@
0x04 0x00000110 0x00000ff0
>;
};
+
+ nand_pins: nand_pins {
+ pinctrl-single,bits = <
+ /* EMA_WAIT[0], EMA_OE, EMA_WE, EMA_CS[3] */
+ 0x1c 0x10110010 0xf0ff00f0
+ /*
+ * EMA_D[0], EMA_D[1], EMA_D[2],
+ * EMA_D[3], EMA_D[4], EMA_D[5],
+ * EMA_D[6], EMA_D[7]
+ */
+ 0x24 0x11111111 0xffffffff
+ /*
+ * EMA_D[8], EMA_D[9], EMA_D[10],
+ * EMA_D[11], EMA_D[12], EMA_D[13],
+ * EMA_D[14], EMA_D[15]
+ */
+ 0x20 0x11111111 0xffffffff
+ /* EMA_A[1], EMA_A[2] */
+ 0x30 0x01100000 0x0ff00000
+ >;
+ };
};
&serial2 {
@@ -136,3 +157,35 @@
tx-num-evt = <32>;
rx-num-evt = <32>;
};
+
+&aemif {
+ pinctrl-names = "default";
+ pinctrl-0 = <&nand_pins>;
+ status = "okay";
+ cs3 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ clock-ranges;
+ ranges;
+
+ ti,cs-chipselect = <3>;
+
+ nand@2000000,0 {
+ compatible = "ti,davinci-nand";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0 0x02000000 0x02000000
+ 1 0x00000000 0x00008000>;
+
+ ti,davinci-chipselect = <1>;
+ ti,davinci-mask-ale = <0>;
+ ti,davinci-mask-cle = <0>;
+ ti,davinci-mask-chipsel = <0>;
+
+ ti,davinci-nand-buswidth = <16>;
+ ti,davinci-ecc-mode = "hw";
+ ti,davinci-ecc-bits = <4>;
+ ti,davinci-nand-use-bbt;
+ };
+ };
+};
--
2.9.2
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