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Message-Id: <1300219170-1614-1-git-send-email-ddaney@caviumnetworks.com>
Date: Tue, 15 Mar 2011 12:59:30 -0700
From: David Daney <ddaney@...iumnetworks.com>
To: devicetree-discuss@...ts.ozlabs.org, grant.likely@...retlab.ca,
linux-kernel@...r.kernel.org
Cc: David Daney <ddaney@...iumnetworks.com>
Subject: [RFC PATCH v??] MIPS: Octeon: Add device tree source files.
Signed-off-by: David Daney <ddaney@...iumnetworks.com>
---
I have made some big changes to my device tree and wanted to try to
get some feedback on just the dts part before sending a revised 12
patch set.
I think I addressed all of Grant's comments from the last round.
Things that are new that could use some close supervision:
o gpio-controller, How is this supposed to work as a source of
interrupts? The current Linux kernel code will not let it be an
interrupt-parent unless it is also made an 'interrupt-controller'.
o Some of my PHYs are now connected to the GPIO pin 5 for interrupts.
o serial, I added my three UARTS. How is this supposed to be probed
by the Linux kernel's 8250.c driver?
o bootbus, This is a bunch (8) programmable chip selects. How should
bus timing and width be configured for these things?
o nor flash, Connected to chip select 0. In the Linux kernel how am I
supposed to translate the addresses across the bootbus bridge based
on chip select?
o USB, The EHCI and OHCI controllers are shown as children of the uctl
device which has some configurable clocks. Is this sane?
Thanks in advance for any feedback,
David Daney
arch/mips/cavium-octeon/.gitignore | 2 +
arch/mips/cavium-octeon/Makefile | 13 +
arch/mips/cavium-octeon/octeon_3xxx.dts | 424 +++++++++++++++++++++++++++++++
3 files changed, 439 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/cavium-octeon/.gitignore
create mode 100644 arch/mips/cavium-octeon/octeon_3xxx.dts
diff --git a/arch/mips/cavium-octeon/.gitignore b/arch/mips/cavium-octeon/.gitignore
new file mode 100644
index 0000000..39c9686
--- /dev/null
+++ b/arch/mips/cavium-octeon/.gitignore
@@ -0,0 +1,2 @@
+*.dtb.S
+*.dtb
diff --git a/arch/mips/cavium-octeon/Makefile b/arch/mips/cavium-octeon/Makefile
index 19eb043..b8d4f63 100644
--- a/arch/mips/cavium-octeon/Makefile
+++ b/arch/mips/cavium-octeon/Makefile
@@ -15,3 +15,16 @@ obj-y += octeon-memcpy.o
obj-y += executive/
obj-$(CONFIG_SMP) += smp.o
+
+DTS_FILES = octeon_3xxx.dts
+DTB_FILES = $(patsubst %.dts, %.dtb, $(DTS_FILES))
+
+obj-y += $(patsubst %.dts, %.dtb.o, $(DTS_FILES))
+
+$(obj)/%.dtb: $(src)/%.dts
+ $(call cmd,dtc)
+
+# Let's keep the .dtb files around in case we want to look at them.
+.SECONDARY: $(addprefix $(obj)/, $(DTB_FILES))
+
+clean-files += $(DTB_FILES) $(patsubst %.dtb, %.dtb.S, $(DTB_FILES))
diff --git a/arch/mips/cavium-octeon/octeon_3xxx.dts b/arch/mips/cavium-octeon/octeon_3xxx.dts
new file mode 100644
index 0000000..29f44e0
--- /dev/null
+++ b/arch/mips/cavium-octeon/octeon_3xxx.dts
@@ -0,0 +1,424 @@
+/dts-v1/;
+/*
+ * OCTEON 3XXX, 5XXX, 63XX device tree skeleton.
+ *
+ * This device tree is pruned and patched by early boot code before
+ * use. Because of this, it contains a super-set of the available
+ * devices and properties.
+ */
+/ {
+ compatible = "cavium,octeon-3860";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ interrupt-parent = <&ciu>;
+
+ soc@0 {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges; /* Direct mapping */
+
+ ciu: interrupt-controller@...0000000000 {
+ compatible = "cavium,octeon-3860-ciu";
+ interrupt-controller;
+ #address-cells = <0>;
+ /* Interrupts are specified by two parts:
+ * 1) Controller register (0 or 1)
+ * 2) Bit within the register (0..63)
+ */
+ #interrupt-cells = <2>;
+ reg = <0x10700 0x00000000 0x0 0x7000>;
+ };
+
+ gpio: gpio-controller@...0000000800 {
+ #gpio-cells = <2>;
+ compatible = "cavium,octeon-3860-gpio";
+ reg = <0x10700 0x00000800 0x0 0x100>;
+ gpio-controller;
+ /* Interrupts are specified by two parts:
+ * 1) GPIO pin number (0..15)
+ * 2) Triggering (0 - level active high
+ * 1 - level active low
+ * 2 - edge rising
+ * 3 - edge falling
+ */
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ /* The GPIO pin connect to 16 consecutive CUI bits */
+ interrupts = <0 16>; /* <0 17> <0 18> <0 19>
+ <0 20> <0 21> <0 22> <0 23>
+ <0 24> <0 25> <0 26> <0 27>
+ <0 28> <0 29> <0 30> <0 31>; */
+ };
+
+ smi0: mdio@...0000001800 {
+ compatible = "cavium,octeon-3860-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x11800 0x00001800 0x0 0x40>;
+
+ phy0: ethernet-phy@0 {
+ compatible = "broadcom,bcm5241";
+ reg = <0>;
+ };
+
+ phy1: ethernet-phy@1 {
+ compatible = "broadcom,bcm5241";
+ reg = <1>;
+ };
+
+ phy2: ethernet-phy@2 {
+ reg = <2>;
+ compatible = "marvell,88e1149r";
+ marvell,reg-init = <3 0x10 0 0x5777>,
+ <3 0x11 0 0x00aa>,
+ <3 0x12 0 0x4105>,
+ <3 0x13 0 0x0a60>;
+ interrupt-parent = <&gpio>;
+ interrupts = <5 1>; /* Pin 5, active low */
+ };
+ phy3: ethernet-phy@3 {
+ reg = <3>;
+ compatible = "marvell,88e1149r";
+ marvell,reg-init = <3 0x10 0 0x5777>,
+ <3 0x11 0 0x00aa>,
+ <3 0x12 0 0x4105>,
+ <3 0x13 0 0x0a60>;
+ interrupt-parent = <&gpio>;
+ interrupts = <5 1>; /* Pin 5, active low */
+ };
+ phy4: ethernet-phy@4 {
+ reg = <4>;
+ compatible = "marvell,88e1149r";
+ marvell,reg-init = <3 0x10 0 0x5777>,
+ <3 0x11 0 0x00aa>,
+ <3 0x12 0 0x4105>,
+ <3 0x13 0 0x0a60>;
+ interrupt-parent = <&gpio>;
+ interrupts = <5 1>; /* Pin 5, active low */
+ };
+ phy5: ethernet-phy@5 {
+ reg = <5>;
+ compatible = "marvell,88e1149r";
+ marvell,reg-init = <3 0x10 0 0x5777>,
+ <3 0x11 0 0x00aa>,
+ <3 0x12 0 0x4105>,
+ <3 0x13 0 0x0a60>;
+ interrupt-parent = <&gpio>;
+ interrupts = <5 1>; /* Pin 5, active low */
+ };
+
+ phy6: ethernet-phy@6 {
+ reg = <6>;
+ compatible = "marvell,88e1149r";
+ marvell,reg-init = <3 0x10 0 0x5777>,
+ <3 0x11 0 0x00aa>,
+ <3 0x12 0 0x4105>,
+ <3 0x13 0 0x0a60>;
+ };
+ phy7: ethernet-phy@7 {
+ reg = <7>;
+ compatible = "marvell,88e1149r";
+ marvell,reg-init = <3 0x10 0 0x5777>,
+ <3 0x11 0 0x00aa>,
+ <3 0x12 0 0x4105>,
+ <3 0x13 0 0x0a60>;
+ };
+ phy8: ethernet-phy@8 {
+ reg = <8>;
+ compatible = "marvell,88e1149r";
+ marvell,reg-init = <3 0x10 0 0x5777>,
+ <3 0x11 0 0x00aa>,
+ <3 0x12 0 0x4105>,
+ <3 0x13 0 0x0a60>;
+ };
+ phy9: ethernet-phy@9 {
+ reg = <9>;
+ compatible = "marvell,88e1149r";
+ marvell,reg-init = <3 0x10 0 0x5777>,
+ <3 0x11 0 0x00aa>,
+ <3 0x12 0 0x4105>,
+ <3 0x13 0 0x0a60>;
+ };
+ };
+
+ smi1: mdio@...0000001900 {
+ compatible = "cavium,octeon-3860-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x11800 0x00001900 0x0 0x40>;
+ };
+
+ mix0: ethernet@...0000100000 {
+ compatible = "cavium,octeon-5750-mix";
+ reg = <0x10700 0x00100000 0x0 0x100>, /* MIX */
+ <0x11800 0xE0000000 0x0 0x300>, /* AGL */
+ <0x11800 0xE0000400 0x0 0x400>, /* AGL_SHARED */
+ <0x11800 0xE0002000 0x0 0x8>; /* AGL_PRT_CTL */
+ cell-index = <0>;
+ interrupts = <0 62>, <1 46>;
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy0>;
+ };
+
+ mix1: ethernet@...0000100800 {
+ compatible = "cavium,octeon-5750-mix";
+ reg = <0x10700 0x00100800 0x0 0x100>, /* MIX */
+ <0x11800 0xE0000800 0x0 0x300>, /* AGL */
+ <0x11800 0xE0000400 0x0 0x400>, /* AGL_SHARED */
+ <0x11800 0xE0002008 0x0 0x8>; /* AGL_PRT_CTL */
+ cell-index = <1>;
+ interrupts = <1 18>, < 1 46>;
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy1>;
+ };
+
+ pip: pip@...00a0000000 {
+ compatible = "cavium,octeon-3860-pip";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x11800 0xa0000000 0x0 0x2000>;
+
+ interface@0 {
+ compatible = "cavium,octeon-3860-pip-interface";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>; /* interface */
+
+ ethernet@0 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x0>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy2>;
+ };
+ ethernet@1 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x1>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy3>;
+ };
+ ethernet@2 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x2>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy4>;
+ };
+ ethernet@3 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x3>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy5>;
+ };
+ };
+
+ interface@1 {
+ compatible = "cavium,octeon-3860-pip-interface";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>; /* interface */
+
+ ethernet@0 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x0>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy6>;
+ };
+ ethernet@1 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x1>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy7>;
+ };
+ ethernet@2 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x2>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy8>;
+ };
+ ethernet@3 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x3>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-handle = <&phy9>;
+ };
+ };
+
+ interface@2 { /* DPI interface. */
+ compatible = "cavium,octeon-3860-pip-interface";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>; /* interface */
+
+ ethernet@0 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x0>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ };
+ ethernet@1 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x1>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ };
+ ethernet@2 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x2>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ };
+ ethernet@3 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x3>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ };
+ };
+
+ interface@3 { /* Loop interface. */
+ compatible = "cavium,octeon-3860-pip-interface";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>; /* interface */
+
+ ethernet@0 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x0>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ };
+ ethernet@1 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x1>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ };
+ ethernet@2 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x2>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ };
+ ethernet@3 {
+ compatible = "cavium,octeon-3860-pip-port";
+ reg = <0x3>; /* Port */
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ };
+ };
+ };
+
+ twsi0: i2c@...0000001000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "cavium,octeon-3860-twsi";
+ reg = <0x11800 0x00001000 0x0 0x200>;
+ interrupts = <0 45>;
+ clock-rate = <100000>;
+
+ rtc@68 {
+ compatible = "dallas,ds1337";
+ reg = <0x68>;
+ };
+ tmp@4c {
+ compatible = "ti,tmp421";
+ reg = <0x4c>;
+ };
+ };
+
+ twsi1: i2c@...0000001200 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "cavium,octeon-3860-twsi";
+ reg = <0x11800 0x00001200 0x0 0x200>;
+ interrupts = <0 59>;
+ clock-rate = <100000>;
+ };
+
+ uart0: serial@...0000000800 {
+ compatible = "cavium,octeon-3860-uart","ns16550";
+ reg = <0x11800 0x00000800 0x0 0x400>;
+ clock-frequency = <0>;
+ current-speed = <115200>;
+ reg-shift = <3>;
+ interrupts = <0 34>;
+ };
+
+ uart1: serial@...0000000c00 {
+ compatible = "cavium,octeon-3860-uart","ns16550";
+ reg = <0x11800 0x00000c00 0x0 0x400>;
+ clock-frequency = <0>;
+ current-speed = <115200>;
+ reg-shift = <3>;
+ interrupts = <0 35>;
+ };
+
+ uart2: serial@...0000000400 {
+ compatible = "cavium,octeon-3860-uart","ns16550";
+ reg = <0x11800 0x00000400 0x0 0x400>;
+ clock-frequency = <0>;
+ current-speed = <115200>;
+ reg-shift = <3>;
+ interrupts = <1 16>;
+ };
+
+ bootbus: bootbus@...0000000000 {
+ compatible = "cavium,octeon-3860-bootbus";
+ reg = <0x10000 0x00000000 0x1 0x00000000>;
+ /* The chip select number */
+ #address-cells = <1>;
+ /* The size of the chip select region */
+ #size-cells = <1>;
+
+ flash0: nor@0 {
+ compatible = "cfi-flash";
+ reg = <0 0x800000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "firmware";
+ reg = <0x0 0x400000>;
+ read-only;
+ };
+
+ partition@...000 {
+ label = "data";
+ reg = <0x400000 0x400000>;
+ read-only;
+ };
+ };
+ };
+
+ uctl: uctl@...006f000000 {
+ compatible = "cavium,octeon-6335-uctl";
+ reg = <0x11800 0x6f000000 0x0 0x100>;
+ ranges; /* Direct mapping */
+ #address-cells = <2>;
+ #size-cells = <2>;
+ /* 12MHz, 24MHz and 48MHz allowed */
+ refclk-frequency = <24000000>;
+ /* Either "crystal" or "external" */
+ refclk-type = "crystal";
+
+ ehci@...0000000000 {
+ compatible = "cavium,octeon-6335-ehci","usb-ehci";
+ reg = <0x16f00 0x00000000 0x0 0x100>;
+ interrupts = <0 56>;
+ big-endian-regs;
+ };
+ ohci@...0000000400 {
+ compatible = "cavium,octeon-6335-ohci","usb-ohci";
+ reg = <0x16f00 0x00000400 0x0 0x100>;
+ interrupts = <0 56>;
+ big-endian-regs;
+ };
+ };
+ };
+
+ aliases {
+ mix0 = &mix0;
+ mix1 = &mix1;
+ pip = &pip;
+ smi0 = &smi0;
+ smi1 = &smi1;
+ twsi0 = &twsi0;
+ twsi1 = &twsi1;
+ uart0 = &uart0;
+ uart1 = &uart1;
+ uart2 = &uart2;
+ flash0 = &flash0;
+ };
+ };
--
1.7.2.3
--
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