arm: generate memory region tables from dts

This change adds infrastructure to automatically generate the
physBase macro, the avail_p_regs array, and the dev_p_regs array
based on a device tree. Platforms can opt-in to using this
by adding DTS files to the KernelDTSList variable.

The Python script uses the hardware.yml file to determine which
devices in the device tree are of interest to the kernel and should
be hidden from userspace and instead mapped into the kernel. Note that
currently the kernel mappings are not (yet) generated, however most
of the infrastructure needed to make that happen is present.

tools/hardware.yml

@@ -0,0 +1,174 @@
+#
+# Copyright 2018, Data61
+# Commonwealth Scientific and Industrial Research Organisation (CSIRO)
+# ABN 41 687 119 230.
+#
+# This software may be distributed and modified according to the terms of
+# the GNU General Public License version 2. Note that NO WARRANTY is provided.
+# See "LICENSE_GPLv2.txt" for details.
+#
+# @TAG(DATA61_GPL)
+#
+# Documentation for bindings is relative to Documentation/devicetree/bindings in Linux,
+# unless otherwise noted.
+buses:
+  - simple-bus
+  - qcom,gsbi-v1.0.0
+devices:
+  # ARM GIC (interrupt-controller/arm,gic.txt)
+  - compatible:
+    - arm,cortex-a15-gic
+    - arm,cortex-a7-gic
+    - arm,cortex-a9-gic
+    - arm,gic-400
+    - qcom,msm-qgic2
+    regions:
+        # distributor
+      - executeNever: true
+        index: 0
+        kernel: GIC_PL390_DISTRIBUTOR_PPTR
+        # controller
+      - executeNever: true
+        index: 1
+        kernel: GIC_PL390_CONTROLLER_PPTR
+        # GICV
+      - executeNever: false
+        index: 2
+        kernel: GIC_PL400_VCPUCTRL_PPTR
+        macro: CONFIG_ARM_HYPERVISOR_SUPPORT
+        user: false # never expose to userspace, even if macro is false.
+        # other regions (i.e. GICH)
+      - user: true
+  # Broadcom second level IRQ controller (interrupt-controller/brcm,bcm2835-armctrl-ic.txt),
+  # TI AM33XX/OMAP3 intc (interrupt-controller/ti,omap-intc-irq.txt)
+  - compatible:
+    - brcm,bcm2836-armctrl-ic
+    - ti,am33xx-intc
+    - ti,omap3-intc
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: INTC_PPTR
+  # Broadcom top level IRQ controller (interrupt-controller/brcm,bcm2836-l1-intc.txt)
+  - compatible:
+    - brcm,bcm2836-l1-intc
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: ARM_LOCAL_PPTR
+  # i.MX AVIC (no Linux docs, used in arch/arm/mach-imx/avic.c)
+  - compatible:
+    - fsl,imx31-avic
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: AVIC_PPTR
+  # ARM PL310 L2 cache controller (arm/l2c2x0.txt)
+  - compatible:
+    - arm,pl310-cache
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: L2CC_L2C310_PPTR
+  # i.MX31 L2CC (seL4 only)
+  - compatible:
+    - fsl,imx31-l2cc
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: L2CC_PPTR
+  # Exynos multi core timer (timer/samsung,exynos4210-mct.txt)
+  # Exynos4412 MCT is separate as we use it for the timer IRQ.
+  # Other Exynos platforms use the ARM architecture timer.
+  - compatible:
+    - samsung,exynos4412-mct
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: EXYNOS_MCT_PPTR
+  - compatible:
+    - samsung,exynos4210-mct
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: EXYNOS_MCT_PPTR
+  # Tegra SMMU (memory-controllers/nvidia,tegra30-mc.txt)
+  - compatible:
+    - nvidia,tegra124-mc
+    regions:
+      - executeNever: false
+        index: 0
+        kernel: SMMU_PPTR
+        macro: CONFIG_ARM_SMMU
+  # ARM per-core timer-watchdog (timer/arm,twd.txt)
+  - compatible:
+    - arm,cortex-a9-twd-timer
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: ARM_MP_PRIV_TIMER_PPTR
+  # i.MX EPIT (no Linux binding, this is seL4-specific.)
+  - compatible:
+    - fsl,imx31-epit
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: EPIT_PPTR
+  # QCOM Krait timer (timer/qcom,msm-timer.txt)
+  - compatible:
+    - qcom,kpss-timer
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: TIMER_PPTR
+  # TI AM335x/OMAP3430 timer
+  - compatible:
+    - ti,am335x-timer
+    - ti,omap3430-timer
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: TIMER_PPTR
+    chosen: seL4,timer
+  # TI prcm (arm/omap/prcm.txt)
+  - compatible:
+    - ti,omap4-cm
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: CMPER_PPTR
+        user: true
+  # TI watchdog
+  - compatible:
+    - ti,omap3-wdt
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: WDT1_PPTR
+        user: true
+  # various serial consoles (`grep <compatible> serial/*`)
+  - compatible:
+    - arm,pl011
+    - brcm,bcm2835-aux-uart
+    - fsl,imx31-uart
+    - fsl,imx6q-uart
+    - nvidia,tegra124-hsuart
+    - nvidia,tegra20-uart
+    - qcom,msm-uartdm
+    - samsung,exynos4210-uart
+    - snps,dw-apb-uart
+    - ti,am3352-uart
+    - ti,omap3-uart
+    - xlnx,xuartps
+    chosen: stdout-path
+    regions:
+      - executeNever: true
+        index: 0
+        kernel: UART_PPTR
+        macro: CONFIG_PRINTING
+        user: true
+
+
+
+
+