From: Harvey Hunt <harvey.hunt@imgtec.com>
To: <linux-mtd@lists.infradead.org>
Cc: Alex Smith <alex.smith@imgtec.com>,
Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>,
David Woodhouse <dwmw2@infradead.org>,
"Brian Norris" <computersforpeace@gmail.com>,
Paul Burton <paul.burton@imgtec.com>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-mips@linux-mips.org>, Alex Smith <alex@alex-smith.me.uk>,
Harvey Hunt <harvey.hunt@imgtec.com>
Subject: [PATCH v7,3/3] MIPS: dts: jz4780/ci20: Add NEMC, BCH and NAND device tree nodes
Date: Tue, 6 Oct 2015 17:27:17 +0100 [thread overview]
Message-ID: <1444148837-10770-4-git-send-email-harvey.hunt@imgtec.com> (raw)
In-Reply-To: <1444148837-10770-1-git-send-email-harvey.hunt@imgtec.com>
From: Alex Smith <alex.smith@imgtec.com>
Add device tree nodes for the NEMC and BCH to the JZ4780 device tree,
and make use of them in the Ci20 device tree to add a node for the
board's NAND.
Note that since the pinctrl driver is not yet upstream, this includes
neither pin configuration nor busy/write-protect GPIO pins for the
NAND. Use of the NAND relies on the boot loader to have left the pins
configured in a usable state, which should be the case when booted
from the NAND.
Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mtd@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: Alex Smith <alex@alex-smith.me.uk>
Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com>
---
v6 -> v7:
- Add nand-ecc-mode to DT.
- Add nand-on-flash-bbt to DT.
v4 -> v5:
- New patch adding DT nodes for the NAND so that the driver can be
tested.
arch/mips/boot/dts/ingenic/ci20.dts | 54 ++++++++++++++++++++++++++++++++++
arch/mips/boot/dts/ingenic/jz4780.dtsi | 26 ++++++++++++++++
2 files changed, 80 insertions(+)
diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index 9fcb9e7..453f1d3 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -42,3 +42,57 @@
&uart4 {
status = "okay";
};
+
+&nemc {
+ status = "okay";
+
+ nand: nand@1 {
+ compatible = "ingenic,jz4780-nand";
+ reg = <1 0 0x1000000>;
+
+ ingenic,nemc-tAS = <10>;
+ ingenic,nemc-tAH = <5>;
+ ingenic,nemc-tBP = <10>;
+ ingenic,nemc-tAW = <15>;
+ ingenic,nemc-tSTRV = <100>;
+
+ ingenic,bch-controller = <&bch>;
+ ingenic,ecc-size = <1024>;
+ ingenic,ecc-strength = <24>;
+
+ nand-ecc-mode = "hw";
+ nand-on-flash-bbt;
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ partition@0 {
+ label = "u-boot-spl";
+ reg = <0x0 0x0 0x0 0x800000>;
+ };
+
+ partition@0x800000 {
+ label = "u-boot";
+ reg = <0x0 0x800000 0x0 0x200000>;
+ };
+
+ partition@0xa00000 {
+ label = "u-boot-env";
+ reg = <0x0 0xa00000 0x0 0x200000>;
+ };
+
+ partition@0xc00000 {
+ label = "boot";
+ reg = <0x0 0xc00000 0x0 0x4000000>;
+ };
+
+ partition@0x8c00000 {
+ label = "system";
+ reg = <0x0 0x4c00000 0x1 0xfb400000>;
+ };
+ };
+};
+
+&bch {
+ status = "okay";
+};
diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi
index 65389f6..b868b42 100644
--- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
@@ -108,4 +108,30 @@
status = "disabled";
};
+
+ nemc: nemc@13410000 {
+ compatible = "ingenic,jz4780-nemc";
+ reg = <0x13410000 0x10000>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges = <1 0 0x1b000000 0x1000000
+ 2 0 0x1a000000 0x1000000
+ 3 0 0x19000000 0x1000000
+ 4 0 0x18000000 0x1000000
+ 5 0 0x17000000 0x1000000
+ 6 0 0x16000000 0x1000000>;
+
+ clocks = <&cgu JZ4780_CLK_NEMC>;
+
+ status = "disabled";
+ };
+
+ bch: bch@134d0000 {
+ compatible = "ingenic,jz4780-bch";
+ reg = <0x134d0000 0x10000>;
+
+ clocks = <&cgu JZ4780_CLK_BCH>;
+
+ status = "disabled";
+ };
};
--
2.6.0
next prev parent reply other threads:[~2015-10-06 16:28 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1444148837-10770-1-git-send-email-harvey.hunt@imgtec.com>
2015-10-06 16:27 ` [PATCH v7,1/3] dt-bindings: binding for jz4780-{nand,bch} Harvey Hunt
2015-11-04 7:57 ` Boris Brezillon
2015-11-17 16:08 ` Harvey Hunt
2015-11-17 16:25 ` Harvey Hunt
2015-10-06 16:27 ` [PATCH v7,2/3] mtd: nand: jz4780: driver for NAND devices on JZ4780 SoCs Harvey Hunt
2015-11-04 10:18 ` [PATCH v7, 2/3] " Boris Brezillon
2015-11-17 16:28 ` Harvey Hunt
2015-11-17 19:09 ` Boris Brezillon
2015-10-06 16:27 ` Harvey Hunt [this message]
2015-10-08 21:22 ` [PATCH v7,3/3] MIPS: dts: jz4780/ci20: Add NEMC, BCH and NAND device tree nodes Ezequiel Garcia
2015-10-14 9:15 ` Harvey Hunt
2015-10-15 8:47 ` James Hogan
2015-10-16 10:11 ` Alex Smith
2015-10-16 10:31 ` James Hogan
2015-10-16 10:48 ` Paul Burton
2015-11-04 7:51 ` Boris Brezillon
2015-11-17 16:29 ` Harvey Hunt
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