diff options
author | Andreas Sandberg <andreas.sandberg@arm.com> | 2016-02-23 11:21:07 +0000 |
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committer | Andreas Sandberg <andreas.sandberg@arm.com> | 2016-02-23 11:21:07 +0000 |
commit | 826e0047b0a830ea5980ce1d0db7797ab3ee6de2 (patch) | |
tree | aabd9b23d1e22c6c5bf7a1f47c63be9c3b9744d7 /system/arm/dt/platforms | |
parent | 4619f0ee8bf2cd3f05f727b56c1e449b4bfecce1 (diff) | |
download | gem5-826e0047b0a830ea5980ce1d0db7797ab3ee6de2.tar.xz |
arm: Ship Linux device trees with gem5
Ship aarch32 and aarch64 device trees with gem5. We currently ship
device trees as a part of the gem5 Linux kernel repository. This makes
tracking hard since device trees are supposed to be platform dependent
rather than kernel dependent (Linux considers device trees to be a
stable kernel ABI). It also makes code sharing between aarch32 and
aarch64 impossible.
This changeset implements a set of device trees for the new
VExpress_GEM5_V1 platform. The platform is described in a shared file
that is separate from the memory/CPU description. Due to differences
in how secondary CPUs are initialized, aarch32 and aarch64 use
different base files describing CPU nodes and the machine's
compatibility property.
Diffstat (limited to 'system/arm/dt/platforms')
-rw-r--r-- | system/arm/dt/platforms/vexpress_gem5_v1.dtsi | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/system/arm/dt/platforms/vexpress_gem5_v1.dtsi b/system/arm/dt/platforms/vexpress_gem5_v1.dtsi new file mode 100644 index 000000000..4d463e794 --- /dev/null +++ b/system/arm/dt/platforms/vexpress_gem5_v1.dtsi @@ -0,0 +1,186 @@ +/* + * Copyright (c) 2015-2016 ARM Limited + * All rights reserved + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Andreas Sandberg + */ + +/ { + arm,hbi = <0x0>; + arm,vexpress,site = <0xf>; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + gic: interrupt-controller@2c001000 { + compatible = "gem5,gic", "arm,gic-400"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0 0x2c001000 0 0x1000>, + <0 0x2c002000 0 0x1000>, + <0 0x2c004000 0 0x2000>, + <0 0x2c006000 0 0x2000>; + interrupts = <1 9 0xf04>; + }; + + + timer { + compatible = "arm,cortex-a15-timer", + "arm,armv7-timer"; + interrupts = <1 13 0xff01>, + <1 14 0xff01>, + <1 11 0xff01>; + clocks = <&osc_sys>; + clock-names="apb_pclk"; + }; + + pci { + compatible = "pci-host-ecam-generic"; + device_type = "pci"; + #address-cells = <0x3>; + #size-cells = <0x2>; + #interrupt-cells = <0x1>; + + reg = <0x0 0x30000000 0x0 0x10000000>; + + ranges = <0x01000000 0x0 0x00000000 0x0 0x2f000000 0x0 0x00010000>, + <0x02000000 0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>; + + interrupt-map = <0x000000 0x0 0x0 0 &gic 0 68 1>, + <0x000800 0x0 0x0 0 &gic 0 69 1>, + <0x001000 0x0 0x0 0 &gic 0 70 1>, + <0x001800 0x0 0x0 0 &gic 0 71 1>; + + interrupt-map-mask = <0x001800 0x0 0x0 0x0>; + dma-coherent; + }; + + /* Ths HDLCD controller driver hasn't reached mainline + * yet. Disable it by default in the platform until the DT + * bindings have stabilize. + */ + hdlcd0: hdlcd@2b000000 { + compatible = "arm,hdlcd"; + reg = <0x0 0x2b000000 0x0 0x1000>; + interrupts = <0 63 4>; + clocks = <&osc_pxl>; + clock-names = "pxlclk"; + + status = "disabled"; + }; + + kmi@1c060000 { + compatible = "arm,pl050", "arm,primecell"; + reg = <0x0 0x1c060000 0x0 0x1000>; + interrupts = <0 12 4>; + clocks = <&v2m_clk24mhz>, <&osc_smb>; + clock-names = "KMIREFCLK", "apb_pclk"; + }; + + kmi@1c070000 { + compatible = "arm,pl050", "arm,primecell"; + reg = <0x0 0x1c070000 0x0 0x1000>; + interrupts = <0 13 4>; + clocks = <&v2m_clk24mhz>, <&osc_smb>; + clock-names = "KMIREFCLK", "apb_pclk"; + }; + + uart0: uart@1c090000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x0 0x1c090000 0x0 0x1000>; + interrupts = <0 5 4>; + clocks = <&osc_peripheral>, <&osc_smb>; + clock-names = "uartclk", "apb_pclk"; + }; + + rtc@1c170000 { + compatible = "arm,pl031", "arm,primecell"; + reg = <0x0 0x1c170000 0x0 0x1000>; + interrupts = <0 4 4>; + clocks = <&osc_smb>; + clock-names = "apb_pclk"; + }; + + v2m_clk24mhz: clk24mhz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; + clock-output-names = "v2m:clk24mhz"; + }; + + + v2m_sysreg: sysreg@1c010000 { + compatible = "arm,vexpress-sysreg"; + reg = <0 0x1c010000 0x0 0x1000>; + gpio-controller; + #gpio-cells = <2>; + }; + + dcc { + compatible = "arm,vexpress,config-bus"; + arm,vexpress,config-bridge = <&v2m_sysreg>; + + osc_pxl: osc@5 { + compatible = "arm,vexpress-osc"; + arm,vexpress-sysreg,func = <1 5>; + freq-range = <23750000 1000000000>; + #clock-cells = <0>; + clock-output-names = "oscclk5"; + }; + + osc_smb: osc@6 { + compatible = "arm,vexpress-osc"; + arm,vexpress-sysreg,func = <1 6>; + freq-range = <20000000 50000000>; + #clock-cells = <0>; + clock-output-names = "oscclk6"; + }; + + osc_sys: osc@7 { + compatible = "arm,vexpress-osc"; + arm,vexpress-sysreg,func = <1 7>; + freq-range = <20000000 60000000>; + #clock-cells = <0>; + clock-output-names = "oscclk7"; + }; + }; + + + mcc { + compatible = "arm,vexpress,config-bus"; + arm,vexpress,config-bridge = <&v2m_sysreg>; + arm,vexpress,site = <0>; + + osc_peripheral: osc@2 { + compatible = "arm,vexpress-osc"; + arm,vexpress-sysreg,func = <1 2>; + freq-range = <24000000 24000000>; + #clock-cells = <0>; + clock-output-names = "v2m:oscclk2"; + }; + }; +}; |