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authorAlex Smith <alex.smith@imgtec.com>2015-12-03 12:02:22 +0000
committerRalf Baechle <ralf@linux-mips.org>2016-01-04 09:42:26 +0100
commit78800558d104e003f9ae92e0107f1de39cf9de9f (patch)
treed95f2622ea35ebf239d5daf394f37fb3bd228019 /arch/mips/boot
parent16580796f90531119adbd0913f5126d6369ad17b (diff)
MIPS: dts: jz4780/ci20: Add NEMC, BCH and NAND device tree nodes
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. [ralf@linux-mips.org: fold in Geert Uytterhoeven's patch and acks from Harvey's latest version.] Signed-off-by: Alex Smith <alex.smith@imgtec.com> Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.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: Alex Smith <alex.smith@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: linux-mtd@lists.infradead.org Patchwork: https://patchwork.linux-mips.org/patch/11695/ Patchwork: https://patchwork.linux-mips.org/patch/11914/ Patchwork: https://patchwork.linux-mips.org/patch/11985/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/boot')
-rw-r--r--arch/mips/boot/dts/ingenic/ci20.dts64
-rw-r--r--arch/mips/boot/dts/ingenic/jz4780.dtsi26
2 files changed, 90 insertions, 0 deletions
diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index 9fcb9e7d1f57..1652d8d60b1e 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -42,3 +42,67 @@
&uart4 {
status = "okay";
};
+
+&nemc {
+ status = "okay";
+
+ nandc: nand-controller@1 {
+ compatible = "ingenic,jz4780-nand";
+ reg = <1 0 0x1000000>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ingenic,bch-controller = <&bch>;
+
+ ingenic,nemc-tAS = <10>;
+ ingenic,nemc-tAH = <5>;
+ ingenic,nemc-tBP = <10>;
+ ingenic,nemc-tAW = <15>;
+ ingenic,nemc-tSTRV = <100>;
+
+ nand@1 {
+ reg = <1>;
+
+ nand-ecc-step-size = <1024>;
+ nand-ecc-strength = <24>;
+ nand-ecc-mode = "hw";
+ nand-on-flash-bbt;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #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 65389f602733..b868b429add2 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";
+ };
};