arm: Add device trees for TI-Nspire hardware

This patch adds device trees for describing the TI-Nspire hardware.

Changes between v1 and v2:
* Change "keymap" binding to the standard "linux,keymap" binding.

Signed-off-by: Daniel Tang <dt.tangr@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

6 files changed, 453 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f0895c581a89..6191b1d84e9f 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -135,6 +135,9 @@ dtb-$(CONFIG_ARCH_MXS) += imx23-evk.dtb \
         imx28-sps1.dtb \
         imx28-tx28.dtb
 dtb-$(CONFIG_ARCH_NOMADIK) += ste-nomadik-s8815.dtb
+dtb-$(CONFIG_ARCH_NSPIRE) += nspire-cx.dtb \
+        nspire-tp.dtb \
+        nspire-clp.dtb
 dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
         omap3430-sdp.dtb \
         omap3-beagle.dtb \
diff --git a/arch/arm/boot/dts/nspire-classic.dtsi b/arch/arm/boot/dts/nspire-classic.dtsi
new file mode 100644
index 000000000000..9565199bce7a
--- /dev/null
+++ b/arch/arm/boot/dts/nspire-classic.dtsi
@@ -0,0 +1,74 @@
+/*
+ *  linux/arch/arm/boot/nspire-classic.dts
+ *
+ *  Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+
+/include/ "nspire.dtsi"
+
+&lcd {
+        lcd-type = "classic";
+};
+
+&fast_timer {
+        /* compatible = "lsi,zevio-timer"; */
+        reg = <0x90010000 0x1000>, <0x900A0010 0x8>;
+};
+
+&uart {
+        compatible = "ns16550";
+        reg-shift = <2>;
+        reg-io-width = <4>;
+        clocks = <&apb_pclk>;
+        no-loopback-test;
+};
+
+&timer0 {
+        /* compatible = "lsi,zevio-timer"; */
+        reg = <0x900C0000 0x1000>, <0x900A0018 0x8>;
+};
+
+&timer1 {
+        compatible = "lsi,zevio-timer";
+        reg = <0x900D0000 0x1000>, <0x900A0020 0x8>;
+};
+
+&keypad {
+        active-low;
+
+};
+
+&base_clk {
+        compatible = "lsi,nspire-classic-clock";
+};
+
+&ahb_clk {
+        compatible = "lsi,nspire-classic-ahb-divider";
+};
+
+/ {
+        memory {
+                device_type = "memory";
+                reg = <0x10000000 0x2000000>; /* 32 MB */
+        };
+
+        ahb {
+                #address-cells = <1>;
+                #size-cells = <1>;
+
+                intc: interrupt-controller@DC000000 {
+                        compatible = "lsi,zevio-intc";
+                        interrupt-controller;
+                        reg = <0xDC000000 0x1000>;
+                        #interrupt-cells = <1>;
+                };
+        };
+        chosen {
+                bootargs = "debug earlyprintk console=tty0 console=ttyS0,115200n8 root=/dev/ram0";
+        };
+};
diff --git a/arch/arm/boot/dts/nspire-clp.dts b/arch/arm/boot/dts/nspire-clp.dts
new file mode 100644
index 000000000000..fa5a044656de
--- /dev/null
+++ b/arch/arm/boot/dts/nspire-clp.dts
@@ -0,0 +1,45 @@
+/*
+ *  linux/arch/arm/boot/nspire-clp.dts
+ *
+ *  Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+/dts-v1/;
+
+/include/ "nspire-classic.dtsi"
+
+&keypad {
+        linux,keymap = <
+        0x0000001c      0x0001001c      0x00020039
+        0x0004002c      0x00050034      0x00060015
+        0x0007000b      0x0008002d      0x01000033
+        0x0101004e      0x01020011      0x01030004
+        0x0104002f      0x01050003      0x01060016
+        0x01070002      0x01080014      0x02000062
+        0x0201000c      0x0202001f      0x02030007
+        0x02040013      0x02050006      0x02060010
+        0x02070005      0x02080019      0x03000027
+        0x03010037      0x03020018      0x0303000a
+        0x03040031      0x03050009      0x03060032
+        0x03070008      0x03080026      0x04000028
+        0x04010035      0x04020025      0x04040024
+        0x04060017      0x04080023      0x05000028
+        0x05020022      0x0503001b      0x05040021
+        0x0505001a      0x05060012      0x0507006f
+        0x05080020      0x0509002a      0x0601001c
+        0x0602002e      0x06030068      0x06040030
+        0x0605006d      0x0606001e      0x06070001
+        0x0608002b      0x0609000f      0x07000067
+        0x0702006a      0x0704006c      0x07060069
+        0x0707000e      0x0708001d      0x070a000d
+        >;
+};
+
+/ {
+        model = "TI-NSPIRE Clickpad";
+        compatible = "ti,nspire-clp";
+};
diff --git a/arch/arm/boot/dts/nspire-cx.dts b/arch/arm/boot/dts/nspire-cx.dts
new file mode 100644
index 000000000000..375b924f60d8
--- /dev/null
+++ b/arch/arm/boot/dts/nspire-cx.dts
@@ -0,0 +1,112 @@
+/*
+ *  linux/arch/arm/boot/nspire-cx.dts
+ *
+ *  Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+/dts-v1/;
+
+/include/ "nspire.dtsi"
+
+&lcd {
+        lcd-type = "cx";
+};
+
+&fast_timer {
+        /* compatible = "arm,sp804", "arm,primecell"; */
+};
+
+&uart {
+        compatible = "arm,pl011", "arm,primecell";
+
+        clocks = <&uart_clk>, <&apb_pclk>;
+        clock-names = "uart_clk", "apb_pclk";
+};
+
+&timer0 {
+        compatible = "arm,sp804", "arm,primecell";
+};
+
+&timer1 {
+        compatible = "arm,sp804", "arm,primecell";
+};
+
+&base_clk {
+        compatible = "lsi,nspire-cx-clock";
+};
+
+&ahb_clk {
+        compatible = "lsi,nspire-cx-ahb-divider";
+};
+
+&keypad {
+        linux,keymap = <
+        0x0000001c      0x0001001c      0x00040039
+        0x0005002c      0x00060015      0x0007000b
+        0x0008000f      0x0100002d      0x01010011
+        0x0102002f      0x01030004      0x01040016
+        0x01050014      0x0106001f      0x01070002
+        0x010a006a      0x02000013      0x02010010
+        0x02020019      0x02030007      0x02040018
+        0x02050031      0x02060032      0x02070005
+        0x02080028      0x0209006c      0x03000026
+        0x03010025      0x03020024      0x0303000a
+        0x03040017      0x03050023      0x03060022
+        0x03070008      0x03080035      0x03090069
+        0x04000021      0x04010012      0x04020020
+        0x0404002e      0x04050030      0x0406001e
+        0x0407000d      0x04080037      0x04090067
+        0x05010038      0x0502000c      0x0503001b
+        0x05040034      0x0505001a      0x05060006
+        0x05080027      0x0509000e      0x050a006f
+        0x0600002b      0x0602004e      0x06030068
+        0x06040003      0x0605006d      0x06060009
+        0x06070001      0x0609000f      0x0708002a
+        0x0709001d      0x070a0033      >;
+};
+
+/ {
+        model = "TI-NSPIRE CX";
+        compatible = "ti,nspire-cx";
+
+        memory {
+                device_type = "memory";
+                reg = <0x10000000 0x4000000>; /* 64 MB */
+        };
+
+        uart_clk: uart_clk {
+                #clock-cells = <0>;
+                compatible = "fixed-clock";
+                clock-frequency = <12000000>;
+        };
+
+        ahb {
+                #address-cells = <1>;
+                #size-cells = <1>;
+
+                intc: interrupt-controller@DC000000 {
+                        compatible = "arm,pl190-vic";
+                        interrupt-controller;
+                        reg = <0xDC000000 0x1000>;
+                        #interrupt-cells = <1>;
+                };
+
+                apb@90000000 {
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+
+                        i2c@90050000 {
+                                compatible = "snps,designware-i2c";
+                                reg = <0x90050000 0x1000>;
+                                interrupts = <20>;
+                        };
+                };
+        };
+        chosen {
+                bootargs = "debug earlyprintk console=tty0 console=ttyAMA0,115200n8 root=/dev/ram0";
+        };
+};
diff --git a/arch/arm/boot/dts/nspire-tp.dts b/arch/arm/boot/dts/nspire-tp.dts
new file mode 100644
index 000000000000..621391ce6ed6
--- /dev/null
+++ b/arch/arm/boot/dts/nspire-tp.dts
@@ -0,0 +1,44 @@
+/*
+ *  linux/arch/arm/boot/nspire-tp.dts
+ *
+ *  Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+/dts-v1/;
+
+/include/ "nspire-classic.dtsi"
+
+&keypad {
+        linux,keymap = <
+        0x0000001c      0x0001001c      0x00040039
+        0x0005002c      0x00060015      0x0007000b
+        0x0008000f      0x0100002d      0x01010011
+        0x0102002f      0x01030004      0x01040016
+        0x01050014      0x0106001f      0x01070002
+        0x010a006a      0x02000013      0x02010010
+        0x02020019      0x02030007      0x02040018
+        0x02050031      0x02060032      0x02070005
+        0x02080028      0x0209006c      0x03000026
+        0x03010025      0x03020024      0x0303000a
+        0x03040017      0x03050023      0x03060022
+        0x03070008      0x03080035      0x03090069
+        0x04000021      0x04010012      0x04020020
+        0x0404002e      0x04050030      0x0406001e
+        0x0407000d      0x04080037      0x04090067
+        0x05010038      0x0502000c      0x0503001b
+        0x05040034      0x0505001a      0x05060006
+        0x05080027      0x0509000e      0x050a006f
+        0x0600002b      0x0602004e      0x06030068
+        0x06040003      0x0605006d      0x06060009
+        0x06070001      0x0609000f      0x0708002a
+        0x0709001d      0x070a0033      >;
+};
+
+/ {
+        model = "TI-NSPIRE Touchpad";
+        compatible = "ti,nspire-tp";
+};
diff --git a/arch/arm/boot/dts/nspire.dtsi b/arch/arm/boot/dts/nspire.dtsi
new file mode 100644
index 000000000000..a22ffe633b49
--- /dev/null
+++ b/arch/arm/boot/dts/nspire.dtsi
@@ -0,0 +1,175 @@
+/*
+ *  linux/arch/arm/boot/nspire.dtsi
+ *
+ *  Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+        interrupt-parent = <&intc>;
+
+        cpus {
+                cpu@0 {
+                        compatible = "arm,arm926ejs";
+                };
+        };
+
+        bootrom: bootrom@00000000 {
+                reg = <0x00000000 0x80000>;
+        };
+
+        sram: sram@A4000000 {
+                device = "memory";
+                reg = <0xA4000000 0x20000>;
+        };
+
+        timer_clk: timer_clk {
+                #clock-cells = <0>;
+                compatible = "fixed-clock";
+                clock-frequency = <32768>;
+        };
+
+        base_clk: base_clk {
+                #clock-cells = <0>;
+                reg = <0x900B0024 0x4>;
+        };
+
+        ahb_clk: ahb_clk {
+                #clock-cells = <0>;
+                reg = <0x900B0024 0x4>;
+                clocks = <&base_clk>;
+        };
+
+        apb_pclk: apb_pclk {
+                #clock-cells = <0>;
+                compatible = "fixed-factor-clock";
+                clock-div = <2>;
+                clock-mult = <1>;
+                clocks = <&ahb_clk>;
+        };
+
+        ahb {
+                compatible = "simple-bus";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                ranges;
+
+                spi: spi@A9000000 {
+                        reg = <0xA9000000 0x1000>;
+                };
+
+                usb0: usb@B0000000 {
+                        reg = <0xB0000000 0x1000>;
+                        interrupts = <8>;
+                };
+
+                usb1: usb@B4000000 {
+                        reg = <0xB4000000 0x1000>;
+                        interrupts = <9>;
+                        status = "disabled";
+                };
+
+                lcd: lcd@C0000000 {
+                        compatible = "arm,pl111", "arm,primecell";
+                        reg = <0xC0000000 0x1000>;
+                        interrupts = <21>;
+
+                        clocks = <&apb_pclk>;
+                        clock-names = "apb_pclk";
+                };
+
+                adc: adc@C4000000 {
+                        reg = <0xC4000000 0x1000>;
+                        interrupts = <11>;
+                };
+
+                tdes: crypto@C8010000 {
+                        reg = <0xC8010000 0x1000>;
+                };
+
+                sha256: crypto@CC000000 {
+                        reg = <0xCC000000 0x1000>;
+                };
+
+                apb@90000000 {
+                        compatible = "simple-bus";
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        clock-ranges;
+                        ranges;
+
+                        gpio: gpio@90000000 {
+                                reg = <0x90000000 0x1000>;
+                                interrupts = <7>;
+                        };
+
+                        fast_timer: timer@90010000 {
+                                reg = <0x90010000 0x1000>;
+                                interrupts = <17>;
+                        };
+
+                        uart: serial@90020000 {
+                                reg = <0x90020000 0x1000>;
+                                interrupts = <1>;
+                        };
+
+                        timer0: timer@900C0000 {
+                                reg = <0x900C0000 0x1000>;
+
+                                clocks = <&timer_clk>;
+                        };
+
+                        timer1: timer@900D0000 {
+                                reg = <0x900D0000 0x1000>;
+                                interrupts = <19>;
+
+                                clocks = <&timer_clk>;
+                        };
+
+                        watchdog: watchdog@90060000 {
+                                compatible = "arm,amba-primecell";
+                                reg = <0x90060000 0x1000>;
+                                interrupts = <3>;
+                        };
+
+                        rtc: rtc@90090000 {
+                                reg = <0x90090000 0x1000>;
+                                interrupts = <4>;
+                        };
+
+                        misc: misc@900A0000 {
+                                reg = <0x900A0000 0x1000>;
+                        };
+
+                        pwr: pwr@900B0000 {
+                                reg = <0x900B0000 0x1000>;
+                                interrupts = <15>;
+                        };
+
+                        keypad: input@900E0000 {
+                                compatible = "ti,nspire-keypad";
+                                reg = <0x900E0000 0x1000>;
+                                interrupts = <16>;
+
+                                scan-interval = <1000>;
+                                row-delay = <200>;
+
+                                clocks = <&apb_pclk>;
+                        };
+
+                        contrast: contrast@900F0000 {
+                                reg = <0x900F0000 0x1000>;
+                        };
+
+                        led: led@90110000 {
+                                reg = <0x90110000 0x1000>;
+                        };
+                };
+        };
+};