diff options
Diffstat (limited to 'src/arm/integratorap.dts')
| -rw-r--r-- | src/arm/integratorap.dts | 88 |
1 files changed, 86 insertions, 2 deletions
diff --git a/src/arm/integratorap.dts b/src/arm/integratorap.dts index cf06e32ee108..e8b249f92fb3 100644 --- a/src/arm/integratorap.dts +++ b/src/arm/integratorap.dts @@ -10,6 +10,41 @@ compatible = "arm,integrator-ap"; dma-ranges = <0x80000000 0x0 0x80000000>; + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + device_type = "cpu"; + /* + * Since the board has pluggable CPU modules, we + * cannot define a proper compatible here. Let the + * boot loader fill in the apropriate compatible + * string if necessary. + */ + /* compatible = "arm,arm926ej-s"; */ + reg = <0>; + /* + * The documentation in ARM DUI 0138E page 3-12 states + * that the maximum frequency for this clock is 200 MHz + * but painful trial-and-error has proved to me that it + * is actually just hanging the system above 71 MHz. + * Sad but true. + */ + /* kHz uV */ + operating-points = <71000 0 + 66000 0 + 60000 0 + 48000 0 + 36000 0 + 24000 0 + 12000 0>; + clocks = <&cmosc>; + clock-names = "cpu"; + clock-latency = <1000000>; /* 1 ms */ + }; + }; + aliases { arm,timer-primary = &timer2; arm,timer-secondary = &timer1; @@ -19,7 +54,7 @@ bootargs = "root=/dev/ram0 console=ttyAM0,38400n8 earlyprintk"; }; - /* 24 MHz chrystal on the core module */ + /* 24 MHz chrystal on the Integrator/AP development board */ xtal24mhz: xtal24mhz@24M { #clock-cells = <0>; compatible = "fixed-clock"; @@ -39,14 +74,63 @@ #clock-cells = <0>; compatible = "fixed-clock"; clock-frequency = <14745600>; + clocks = <&xtal24mhz>; + }; + + core-module@10000000 { + /* 24 MHz chrystal on the core module */ + cm24mhz: cm24mhz@24M { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <24000000>; + }; + + /* Oscillator on the core module, clocks the CPU core */ + cmosc: cmosc@24M { + compatible = "arm,syscon-icst525-integratorap-cm"; + #clock-cells = <0>; + lock-offset = <0x14>; + vco-offset = <0x08>; + clocks = <&cm24mhz>; + }; + + /* Auxilary oscillator on the core module, 32.369MHz at boot */ + auxosc: auxosc@24M { + compatible = "arm,syscon-icst525"; + #clock-cells = <0>; + lock-offset = <0x14>; + vco-offset = <0x1c>; + clocks = <&cm24mhz>; + }; }; syscon { - compatible = "arm,integrator-ap-syscon"; + compatible = "arm,integrator-ap-syscon", "syscon"; reg = <0x11000000 0x100>; interrupt-parent = <&pic>; /* These are the logical module IRQs */ interrupts = <9>, <10>, <11>, <12>; + + /* + * SYSCLK clocks PCIv3 bridge, system controller and the + * logic modules. + */ + sysclk: apsys@24M { + compatible = "arm,syscon-icst525-integratorap-sys"; + #clock-cells = <0>; + lock-offset = <0x1c>; + vco-offset = <0x04>; + clocks = <&xtal24mhz>; + }; + + /* One-bit control for the PCI bus clock (33 or 25 MHz) */ + pciclk: pciclk@24M { + compatible = "arm,syscon-icst525-integratorap-pci"; + #clock-cells = <0>; + lock-offset = <0x1c>; + vco-offset = <0x04>; + clocks = <&xtal24mhz>; + }; }; timer0: timer@13000000 { |