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15e30106ce
vexpress_ca9x4 is seemingly the only board except for qemu_arm which
is able to run U-Boot correctly, using the `-M vexpress-a9` option to
QEMU. Building for qemu_arm and running qemu-system-arm with the `-M
virt` argument has a number of downsides, most importantly that it
only supports virtio storage drivers. This significantly reduces its
usefulness in testing memory card and Flash solutions, especially when
the tested images are from a third party source.
So therefore we reintroduce the vexpress_ca9x4 board in this commit,
with the explicit goal of using it with QEMU.
A number of differences to note from the original:
* Since the board was apparently unmaintained, I have now set myself
as the maintainer.
* The board has been converted to use the driver model, which was the
reason it was removed in the first place.
* The vexpress_ca15_tc2 and vexpress_ca5x2 boards, which were removed
in the same commit, are not necessary for the QEMU use case, and
have been omitted.
* An `mmc0` alias was introduced in the dts file. The mmc is not
detected correctly without this, now that it's based on the device
tree instead of the board's init function.
* A couple of other nodes were removed because they were problematic
when trying to run the UEFI bootmgr. Once again, the primary use
case here is QEMU, and these nodes are not needed for that to work.
* Unnecessary board init code has been removed, thanks to driver model
and device tree.
* `CONFIG_OF_EMBED` has been enabled. I know this goes against
recommended practice, but there doesn't seem to be any other way to
pass the dtb to U-Boot in the QEMU scenario. Using the -dtb argument
does not work, I suppose because U-Boot doesn't use the same
mechanics as the kernel when it's booting.
* Load addresses have been changed to fit QEMU use case.
People wanting to get a more detailed, yet somewhat isolated, diff
between this and the original, can run this command:
git diff c6c26a05b89f25a06e7562f8c2071b60fd0c9eac~1 -- \
$( git diff-tree --diff-filter=A -r --name-only HEAD~1 HEAD)
(Make sure to either check out this commit first, or replace HEAD with
the commit ID of this commit)
Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
369 lines
8.2 KiB
Text
369 lines
8.2 KiB
Text
// SPDX-License-Identifier: GPL-2.0
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/*
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* ARM Ltd. Versatile Express
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*
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* CoreTile Express A9x4
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* Cortex-A9 MPCore (V2P-CA9)
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*
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* HBI-0191B
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*/
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/dts-v1/;
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#include "vexpress-v2m.dtsi"
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/ {
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model = "V2P-CA9";
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arm,hbi = <0x191>;
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arm,vexpress,site = <0xf>;
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compatible = "arm,vexpress,v2p-ca9", "arm,vexpress";
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interrupt-parent = <&gic>;
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#address-cells = <1>;
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#size-cells = <1>;
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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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mmc0 = &mmc0;
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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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A9_0: cpu@0 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <0>;
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next-level-cache = <&L2>;
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};
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A9_1: cpu@1 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <1>;
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next-level-cache = <&L2>;
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};
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A9_2: cpu@2 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <2>;
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next-level-cache = <&L2>;
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};
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A9_3: cpu@3 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <3>;
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next-level-cache = <&L2>;
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};
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};
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memory@60000000 {
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device_type = "memory";
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reg = <0x60000000 0x40000000>;
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};
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reserved-memory {
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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/* Chipselect 3 is physically at 0x4c000000 */
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vram: vram@4c000000 {
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/* 8 MB of designated video RAM */
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compatible = "shared-dma-pool";
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reg = <0x4c000000 0x00800000>;
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no-map;
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};
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};
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clcd@10020000 {
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compatible = "arm,pl111", "arm,primecell";
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reg = <0x10020000 0x1000>;
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interrupt-names = "combined";
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interrupts = <0 44 4>;
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clocks = <&oscclk1>, <&oscclk2>;
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clock-names = "clcdclk", "apb_pclk";
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/* 1024x768 16bpp @65MHz */
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max-memory-bandwidth = <95000000>;
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port {
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clcd_pads_ct: endpoint {
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remote-endpoint = <&dvi_bridge_in_ct>;
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arm,pl11x,tft-r0g0b0-pads = <0 8 16>;
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};
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};
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};
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memory-controller@100e0000 {
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compatible = "arm,pl341", "arm,primecell";
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reg = <0x100e0000 0x1000>;
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clocks = <&oscclk2>;
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clock-names = "apb_pclk";
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};
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memory-controller@100e1000 {
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compatible = "arm,pl354", "arm,primecell";
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reg = <0x100e1000 0x1000>;
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interrupts = <0 45 4>,
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<0 46 4>;
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clocks = <&oscclk2>;
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clock-names = "apb_pclk";
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};
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timer@100e4000 {
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compatible = "arm,sp804", "arm,primecell";
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reg = <0x100e4000 0x1000>;
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interrupts = <0 48 4>,
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<0 49 4>;
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clocks = <&oscclk2>, <&oscclk2>;
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clock-names = "timclk", "apb_pclk";
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status = "disabled";
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};
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watchdog@100e5000 {
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compatible = "arm,sp805", "arm,primecell";
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reg = <0x100e5000 0x1000>;
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interrupts = <0 51 4>;
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clocks = <&oscclk2>, <&oscclk2>;
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clock-names = "wdogclk", "apb_pclk";
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};
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scu@1e000000 {
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compatible = "arm,cortex-a9-scu";
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reg = <0x1e000000 0x58>;
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};
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timer@1e000600 {
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compatible = "arm,cortex-a9-twd-timer";
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reg = <0x1e000600 0x20>;
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interrupts = <1 13 0xf04>;
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};
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watchdog@1e000620 {
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compatible = "arm,cortex-a9-twd-wdt";
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reg = <0x1e000620 0x20>;
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interrupts = <1 14 0xf04>;
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};
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gic: interrupt-controller@1e001000 {
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compatible = "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 = <0x1e001000 0x1000>,
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<0x1e000100 0x100>;
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};
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L2: cache-controller@1e00a000 {
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compatible = "arm,pl310-cache";
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reg = <0x1e00a000 0x1000>;
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interrupts = <0 43 4>;
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cache-unified;
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cache-level = <2>;
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arm,data-latency = <1 1 1>;
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arm,tag-latency = <1 1 1>;
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};
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pmu {
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compatible = "arm,cortex-a9-pmu";
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interrupts = <0 60 4>,
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<0 61 4>,
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<0 62 4>,
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<0 63 4>;
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interrupt-affinity = <&A9_0>, <&A9_1>, <&A9_2>, <&A9_3>;
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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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oscclk0: extsaxiclk {
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/* ACLK clock to the AXI master port on the test chip */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 0>;
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freq-range = <30000000 50000000>;
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#clock-cells = <0>;
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clock-output-names = "extsaxiclk";
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};
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oscclk1: clcdclk {
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/* Reference clock for the CLCD */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 1>;
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freq-range = <10000000 80000000>;
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#clock-cells = <0>;
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clock-output-names = "clcdclk";
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};
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smbclk: oscclk2: tcrefclk {
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/* Reference clock for the test chip internal PLLs */
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compatible = "arm,vexpress-osc";
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arm,vexpress-sysreg,func = <1 2>;
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freq-range = <33000000 100000000>;
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#clock-cells = <0>;
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clock-output-names = "tcrefclk";
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};
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volt-vd10 {
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/* Test Chip internal logic 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 = "VD10";
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regulator-always-on;
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label = "VD10";
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};
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volt-vd10-s2 {
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/* PL310, L2 cache, RAM cell supply (not PL310 logic) */
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compatible = "arm,vexpress-volt";
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arm,vexpress-sysreg,func = <2 1>;
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regulator-name = "VD10_S2";
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regulator-always-on;
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label = "VD10_S2";
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};
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volt-vd10-s3 {
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/* Cortex-A9 system supply, Cores, MPEs, SCU and PL310 logic */
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compatible = "arm,vexpress-volt";
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arm,vexpress-sysreg,func = <2 2>;
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regulator-name = "VD10_S3";
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regulator-always-on;
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label = "VD10_S3";
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};
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volt-vcc1v8 {
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/* DDR2 SDRAM and Test Chip DDR2 I/O supply */
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compatible = "arm,vexpress-volt";
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arm,vexpress-sysreg,func = <2 3>;
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regulator-name = "VCC1V8";
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regulator-always-on;
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label = "VCC1V8";
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};
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volt-ddr2vtt {
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/* DDR2 SDRAM VTT termination voltage */
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compatible = "arm,vexpress-volt";
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arm,vexpress-sysreg,func = <2 4>;
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regulator-name = "DDR2VTT";
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regulator-always-on;
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label = "DDR2VTT";
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};
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volt-vcc3v3 {
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/* Local board supply for miscellaneous logic external to the Test Chip */
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arm,vexpress-sysreg,func = <2 5>;
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compatible = "arm,vexpress-volt";
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regulator-name = "VCC3V3";
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regulator-always-on;
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label = "VCC3V3";
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};
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amp-vd10-s2 {
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/* PL310, L2 cache, RAM cell supply (not PL310 logic) */
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compatible = "arm,vexpress-amp";
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arm,vexpress-sysreg,func = <3 0>;
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label = "VD10_S2";
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};
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amp-vd10-s3 {
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/* Cortex-A9 system supply, Cores, MPEs, SCU and PL310 logic */
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compatible = "arm,vexpress-amp";
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arm,vexpress-sysreg,func = <3 1>;
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label = "VD10_S3";
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};
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power-vd10-s2 {
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/* PL310, L2 cache, RAM cell supply (not PL310 logic) */
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compatible = "arm,vexpress-power";
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arm,vexpress-sysreg,func = <12 0>;
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label = "PVD10_S2";
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};
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power-vd10-s3 {
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/* Cortex-A9 system supply, Cores, MPEs, SCU and PL310 logic */
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compatible = "arm,vexpress-power";
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arm,vexpress-sysreg,func = <12 1>;
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label = "PVD10_S3";
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};
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};
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smb: smb@4000000 {
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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 0x40000000 0x04000000>,
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<1 0 0x44000000 0x04000000>,
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<2 0 0x48000000 0x04000000>,
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<3 0 0x4c000000 0x04000000>,
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<7 0 0x10000000 0x00020000>;
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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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};
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site2: hsb@e0000000 {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0 0xe0000000 0x20000000>;
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#interrupt-cells = <1>;
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interrupt-map-mask = <0 3>;
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interrupt-map = <0 0 &gic 0 36 4>,
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<0 1 &gic 0 37 4>,
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<0 2 &gic 0 38 4>,
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<0 3 &gic 0 39 4>;
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};
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};
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