3b9334ac83
Components of the Versatile Express platform (configuration
microcontrollers on motherboard and daughterboards in particular)
talk to each other over a custom configuration bus. They
provide miscellaneous functions (from clock generator control
to energy sensors) which are represented as platform devices
(and Device Tree nodes). The transactions on the bus can
be generated by different "bridges" in the system, some
of which are universal for the whole platform (for the price
of high transfer latencies), others restricted to a subsystem
(but much faster).
Until now drivers for such functions were using custom "func"
API, which is being replaced in this patch by regmap calls.
This required:
* a rework (and move to drivers/bus directory, as suggested
by Samuel and Arnd) of the config bus core, which is much
simpler now and uses device model infrastructure (class)
to keep track of the bridges; non-DT case (soon to be
retired anyway) is simply covered by a special device
registration function
* the new config-bus driver also takes over device population,
so there is no need for special matching table for
of_platform_populate nor "simple-bus" hack in the arm64
model dtsi file (relevant bindings documentation has
been updated); this allows all the vexpress devices
fit into normal device model, making it possible
to remove plenty of early inits and other hacks in
the near future
* adaptation of the syscfg bridge implementation in the
sysreg driver, again making it much simpler; there is
a special case of the "energy" function spanning two
registers, where they should be both defined in the tree
now, but backward compatibility is maintained in the code
* modification of the relevant drivers:
* hwmon - just a straight-forward API change
* power/reset driver - API change
* regulator - API change plus error handling
simplification
* osc clock driver - this one required larger rework
in order to turn in into a standard platform driver
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mike Turquette <mturquette@linaro.org>
399 lines
8.8 KiB
Plaintext
399 lines
8.8 KiB
Plaintext
/*
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* ARM Ltd. Versatile Express
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*
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* CoreTile Express A15x2 A7x3
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* Cortex-A15_A7 MPCore (V2P-CA15_A7)
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*
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* HBI-0249A
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*/
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/dts-v1/;
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/ {
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model = "V2P-CA15_CA7";
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arm,hbi = <0x249>;
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arm,vexpress,site = <0xf>;
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compatible = "arm,vexpress,v2p-ca15_a7", "arm,vexpress";
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interrupt-parent = <&gic>;
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#address-cells = <2>;
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#size-cells = <2>;
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chosen { };
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aliases {
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serial0 = &v2m_serial0;
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serial1 = &v2m_serial1;
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serial2 = &v2m_serial2;
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serial3 = &v2m_serial3;
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i2c0 = &v2m_i2c_dvi;
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i2c1 = &v2m_i2c_pcie;
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};
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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cpu0: cpu@0 {
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device_type = "cpu";
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compatible = "arm,cortex-a15";
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reg = <0>;
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cci-control-port = <&cci_control1>;
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};
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cpu1: cpu@1 {
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device_type = "cpu";
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compatible = "arm,cortex-a15";
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reg = <1>;
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cci-control-port = <&cci_control1>;
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};
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cpu2: cpu@2 {
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device_type = "cpu";
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compatible = "arm,cortex-a7";
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reg = <0x100>;
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cci-control-port = <&cci_control2>;
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};
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cpu3: cpu@3 {
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device_type = "cpu";
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compatible = "arm,cortex-a7";
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reg = <0x101>;
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cci-control-port = <&cci_control2>;
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};
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cpu4: cpu@4 {
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device_type = "cpu";
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compatible = "arm,cortex-a7";
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reg = <0x102>;
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cci-control-port = <&cci_control2>;
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};
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};
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memory@80000000 {
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device_type = "memory";
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reg = <0 0x80000000 0 0x40000000>;
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};
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wdt@2a490000 {
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compatible = "arm,sp805", "arm,primecell";
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reg = <0 0x2a490000 0 0x1000>;
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interrupts = <0 98 4>;
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clocks = <&oscclk6a>, <&oscclk6a>;
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clock-names = "wdogclk", "apb_pclk";
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};
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hdlcd@2b000000 {
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compatible = "arm,hdlcd";
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reg = <0 0x2b000000 0 0x1000>;
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interrupts = <0 85 4>;
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clocks = <&oscclk5>;
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clock-names = "pxlclk";
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};
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memory-controller@2b0a0000 {
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compatible = "arm,pl341", "arm,primecell";
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reg = <0 0x2b0a0000 0 0x1000>;
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clocks = <&oscclk6a>;
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clock-names = "apb_pclk";
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};
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gic: interrupt-controller@2c001000 {
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compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
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#interrupt-cells = <3>;
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#address-cells = <0>;
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interrupt-controller;
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reg = <0 0x2c001000 0 0x1000>,
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<0 0x2c002000 0 0x1000>,
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<0 0x2c004000 0 0x2000>,
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<0 0x2c006000 0 0x2000>;
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interrupts = <1 9 0xf04>;
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};
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cci@2c090000 {
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compatible = "arm,cci-400";
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <0 0x2c090000 0 0x1000>;
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ranges = <0x0 0x0 0x2c090000 0x10000>;
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cci_control1: slave-if@4000 {
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compatible = "arm,cci-400-ctrl-if";
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interface-type = "ace";
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reg = <0x4000 0x1000>;
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};
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cci_control2: slave-if@5000 {
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compatible = "arm,cci-400-ctrl-if";
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interface-type = "ace";
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reg = <0x5000 0x1000>;
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};
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};
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memory-controller@7ffd0000 {
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compatible = "arm,pl354", "arm,primecell";
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reg = <0 0x7ffd0000 0 0x1000>;
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interrupts = <0 86 4>,
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<0 87 4>;
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clocks = <&oscclk6a>;
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clock-names = "apb_pclk";
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};
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dma@7ff00000 {
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compatible = "arm,pl330", "arm,primecell";
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reg = <0 0x7ff00000 0 0x1000>;
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interrupts = <0 92 4>,
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<0 88 4>,
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<0 89 4>,
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<0 90 4>,
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<0 91 4>;
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clocks = <&oscclk6a>;
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clock-names = "apb_pclk";
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};
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scc@7fff0000 {
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compatible = "arm,vexpress-scc,v2p-ca15_a7", "arm,vexpress-scc";
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reg = <0 0x7fff0000 0 0x1000>;
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interrupts = <0 95 4>;
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};
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timer {
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compatible = "arm,armv7-timer";
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interrupts = <1 13 0xf08>,
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<1 14 0xf08>,
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<1 11 0xf08>,
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<1 10 0xf08>;
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};
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pmu {
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compatible = "arm,cortex-a15-pmu";
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interrupts = <0 68 4>,
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<0 69 4>;
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};
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oscclk6a: oscclk6a {
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/* Reference 24MHz clock */
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <24000000>;
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clock-output-names = "oscclk6a";
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};
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dcc {
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compatible = "arm,vexpress,config-bus";
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arm,vexpress,config-bridge = <&v2m_sysreg>;
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osc@0 {
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/* A15 PLL 0 reference clock */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 0>;
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freq-range = <17000000 50000000>;
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#clock-cells = <0>;
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clock-output-names = "oscclk0";
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};
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osc@1 {
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/* A15 PLL 1 reference clock */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 1>;
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freq-range = <17000000 50000000>;
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#clock-cells = <0>;
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clock-output-names = "oscclk1";
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};
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osc@2 {
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/* A7 PLL 0 reference clock */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 2>;
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freq-range = <17000000 50000000>;
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#clock-cells = <0>;
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clock-output-names = "oscclk2";
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};
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osc@3 {
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/* A7 PLL 1 reference clock */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 3>;
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freq-range = <17000000 50000000>;
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#clock-cells = <0>;
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clock-output-names = "oscclk3";
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};
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osc@4 {
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/* External AXI master clock */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 4>;
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freq-range = <20000000 40000000>;
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#clock-cells = <0>;
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clock-output-names = "oscclk4";
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};
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oscclk5: osc@5 {
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/* HDLCD PLL reference clock */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 5>;
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freq-range = <23750000 165000000>;
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#clock-cells = <0>;
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clock-output-names = "oscclk5";
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};
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smbclk: osc@6 {
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/* Static memory controller clock */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 6>;
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freq-range = <20000000 40000000>;
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#clock-cells = <0>;
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clock-output-names = "oscclk6";
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};
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osc@7 {
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/* SYS PLL reference clock */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 7>;
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freq-range = <17000000 50000000>;
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#clock-cells = <0>;
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clock-output-names = "oscclk7";
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};
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osc@8 {
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/* DDR2 PLL reference clock */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 8>;
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freq-range = <20000000 50000000>;
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#clock-cells = <0>;
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clock-output-names = "oscclk8";
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};
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volt@0 {
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/* A15 CPU core voltage */
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compatible = "arm,vexpress-volt";
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arm,vexpress-sysreg,func = <2 0>;
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regulator-name = "A15 Vcore";
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <1050000>;
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regulator-always-on;
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label = "A15 Vcore";
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};
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volt@1 {
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/* A7 CPU core voltage */
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compatible = "arm,vexpress-volt";
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arm,vexpress-sysreg,func = <2 1>;
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regulator-name = "A7 Vcore";
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <1050000>;
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regulator-always-on;
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label = "A7 Vcore";
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};
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amp@0 {
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/* Total current for the two A15 cores */
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compatible = "arm,vexpress-amp";
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arm,vexpress-sysreg,func = <3 0>;
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label = "A15 Icore";
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};
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amp@1 {
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/* Total current for the three A7 cores */
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compatible = "arm,vexpress-amp";
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arm,vexpress-sysreg,func = <3 1>;
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label = "A7 Icore";
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};
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temp@0 {
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/* DCC internal temperature */
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compatible = "arm,vexpress-temp";
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arm,vexpress-sysreg,func = <4 0>;
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label = "DCC";
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};
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power@0 {
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/* Total power for the two A15 cores */
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compatible = "arm,vexpress-power";
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arm,vexpress-sysreg,func = <12 0>;
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label = "A15 Pcore";
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};
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power@1 {
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/* Total power for the three A7 cores */
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compatible = "arm,vexpress-power";
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arm,vexpress-sysreg,func = <12 1>;
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label = "A7 Pcore";
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};
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energy@0 {
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/* Total energy for the two A15 cores */
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compatible = "arm,vexpress-energy";
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arm,vexpress-sysreg,func = <13 0>, <13 1>;
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label = "A15 Jcore";
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};
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energy@2 {
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/* Total energy for the three A7 cores */
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compatible = "arm,vexpress-energy";
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arm,vexpress-sysreg,func = <13 2>, <13 3>;
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label = "A7 Jcore";
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};
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};
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smb {
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compatible = "simple-bus";
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#address-cells = <2>;
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#size-cells = <1>;
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ranges = <0 0 0 0x08000000 0x04000000>,
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<1 0 0 0x14000000 0x04000000>,
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<2 0 0 0x18000000 0x04000000>,
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<3 0 0 0x1c000000 0x04000000>,
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<4 0 0 0x0c000000 0x04000000>,
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<5 0 0 0x10000000 0x04000000>;
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#interrupt-cells = <1>;
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interrupt-map-mask = <0 0 63>;
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interrupt-map = <0 0 0 &gic 0 0 4>,
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<0 0 1 &gic 0 1 4>,
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<0 0 2 &gic 0 2 4>,
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<0 0 3 &gic 0 3 4>,
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<0 0 4 &gic 0 4 4>,
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<0 0 5 &gic 0 5 4>,
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<0 0 6 &gic 0 6 4>,
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<0 0 7 &gic 0 7 4>,
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<0 0 8 &gic 0 8 4>,
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<0 0 9 &gic 0 9 4>,
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<0 0 10 &gic 0 10 4>,
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<0 0 11 &gic 0 11 4>,
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<0 0 12 &gic 0 12 4>,
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<0 0 13 &gic 0 13 4>,
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<0 0 14 &gic 0 14 4>,
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<0 0 15 &gic 0 15 4>,
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<0 0 16 &gic 0 16 4>,
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<0 0 17 &gic 0 17 4>,
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<0 0 18 &gic 0 18 4>,
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<0 0 19 &gic 0 19 4>,
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<0 0 20 &gic 0 20 4>,
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<0 0 21 &gic 0 21 4>,
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<0 0 22 &gic 0 22 4>,
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<0 0 23 &gic 0 23 4>,
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<0 0 24 &gic 0 24 4>,
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<0 0 25 &gic 0 25 4>,
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<0 0 26 &gic 0 26 4>,
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<0 0 27 &gic 0 27 4>,
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<0 0 28 &gic 0 28 4>,
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<0 0 29 &gic 0 29 4>,
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<0 0 30 &gic 0 30 4>,
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<0 0 31 &gic 0 31 4>,
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<0 0 32 &gic 0 32 4>,
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<0 0 33 &gic 0 33 4>,
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<0 0 34 &gic 0 34 4>,
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<0 0 35 &gic 0 35 4>,
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<0 0 36 &gic 0 36 4>,
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<0 0 37 &gic 0 37 4>,
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<0 0 38 &gic 0 38 4>,
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<0 0 39 &gic 0 39 4>,
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<0 0 40 &gic 0 40 4>,
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<0 0 41 &gic 0 41 4>,
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<0 0 42 &gic 0 42 4>;
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/include/ "vexpress-v2m-rs1.dtsi"
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};
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};
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