mirror of
https://github.com/AsahiLinux/u-boot
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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>
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// 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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* Motherboard Express uATX
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* V2M-P1
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*
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* HBI-0190D
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*
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* Original memory map ("Legacy memory map" in the board's
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* Technical Reference Manual)
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*
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* WARNING! The hardware described in this file is independent from the
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* RS1 variant (vexpress-v2m-rs1.dtsi), but there is a strong
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* correspondence between the two configurations.
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*
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* TAKE CARE WHEN MAINTAINING THIS FILE TO PROPAGATE ANY RELEVANT
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* CHANGES TO vexpress-v2m-rs1.dtsi!
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*/
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/ {
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smb@4000000 {
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motherboard {
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model = "V2M-P1";
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arm,hbi = <0x190>;
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arm,vexpress,site = <0>;
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compatible = "arm,vexpress,v2m-p1", "simple-bus";
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#address-cells = <2>; /* SMB chipselect number and offset */
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#size-cells = <1>;
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#interrupt-cells = <1>;
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ranges;
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flash@0,00000000 {
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compatible = "arm,vexpress-flash", "cfi-flash";
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reg = <0 0x00000000 0x04000000>,
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<1 0x00000000 0x04000000>;
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bank-width = <4>;
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};
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psram@2,00000000 {
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compatible = "arm,vexpress-psram", "mtd-ram";
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reg = <2 0x00000000 0x02000000>;
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bank-width = <4>;
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};
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ethernet@3,02000000 {
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compatible = "smsc,lan9118", "smsc,lan9115";
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reg = <3 0x02000000 0x10000>;
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interrupts = <15>;
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phy-mode = "mii";
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reg-io-width = <4>;
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smsc,irq-active-high;
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smsc,irq-push-pull;
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vdd33a-supply = <&v2m_fixed_3v3>;
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vddvario-supply = <&v2m_fixed_3v3>;
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};
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usb@3,03000000 {
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compatible = "nxp,usb-isp1761";
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reg = <3 0x03000000 0x20000>;
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interrupts = <16>;
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port1-otg;
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};
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iofpga@7,00000000 {
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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 7 0 0x20000>;
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v2m_sysreg: sysreg@0 {
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compatible = "arm,vexpress-sysreg";
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reg = <0x00000 0x1000>;
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0 0 0x1000>;
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v2m_led_gpios: gpio@8 {
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compatible = "arm,vexpress-sysreg,sys_led";
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reg = <0x008 4>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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v2m_mmc_gpios: gpio@48 {
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compatible = "arm,vexpress-sysreg,sys_mci";
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reg = <0x048 4>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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v2m_flash_gpios: gpio@4c {
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compatible = "arm,vexpress-sysreg,sys_flash";
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reg = <0x04c 4>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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};
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v2m_sysctl: sysctl@1000 {
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compatible = "arm,sp810", "arm,primecell";
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reg = <0x01000 0x1000>;
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clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&smbclk>;
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clock-names = "refclk", "timclk", "apb_pclk";
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#clock-cells = <1>;
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clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
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assigned-clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&v2m_sysctl 3>, <&v2m_sysctl 3>;
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assigned-clock-parents = <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>;
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};
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/* PCI-E I2C bus */
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v2m_i2c_pcie: i2c@2000 {
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compatible = "arm,versatile-i2c";
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reg = <0x02000 0x1000>;
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#address-cells = <1>;
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#size-cells = <0>;
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pcie-switch@60 {
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compatible = "idt,89hpes32h8";
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reg = <0x60>;
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};
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};
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aaci@4000 {
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compatible = "arm,pl041", "arm,primecell";
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reg = <0x04000 0x1000>;
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interrupts = <11>;
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clocks = <&smbclk>;
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clock-names = "apb_pclk";
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};
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mmc0: mmci@5000 {
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compatible = "arm,pl180", "arm,primecell";
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reg = <0x05000 0x1000>;
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interrupts = <9>, <10>;
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cd-gpios = <&v2m_mmc_gpios 0 0>;
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wp-gpios = <&v2m_mmc_gpios 1 0>;
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max-frequency = <12000000>;
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vmmc-supply = <&v2m_fixed_3v3>;
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clocks = <&v2m_clk24mhz>, <&smbclk>;
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clock-names = "mclk", "apb_pclk";
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};
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v2m_serial0: uart@9000 {
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compatible = "arm,pl011", "arm,primecell";
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reg = <0x09000 0x1000>;
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interrupts = <5>;
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clocks = <&v2m_oscclk2>, <&smbclk>;
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clock-names = "uartclk", "apb_pclk";
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};
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v2m_serial1: uart@a000 {
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compatible = "arm,pl011", "arm,primecell";
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reg = <0x0a000 0x1000>;
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interrupts = <6>;
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clocks = <&v2m_oscclk2>, <&smbclk>;
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clock-names = "uartclk", "apb_pclk";
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};
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v2m_serial2: uart@b000 {
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compatible = "arm,pl011", "arm,primecell";
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reg = <0x0b000 0x1000>;
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interrupts = <7>;
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clocks = <&v2m_oscclk2>, <&smbclk>;
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clock-names = "uartclk", "apb_pclk";
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};
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v2m_serial3: uart@c000 {
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compatible = "arm,pl011", "arm,primecell";
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reg = <0x0c000 0x1000>;
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interrupts = <8>;
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clocks = <&v2m_oscclk2>, <&smbclk>;
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clock-names = "uartclk", "apb_pclk";
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};
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v2m_timer01: timer@11000 {
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compatible = "arm,sp804", "arm,primecell";
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reg = <0x11000 0x1000>;
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interrupts = <2>;
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clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&smbclk>;
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clock-names = "timclken1", "timclken2", "apb_pclk";
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};
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v2m_timer23: timer@12000 {
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compatible = "arm,sp804", "arm,primecell";
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reg = <0x12000 0x1000>;
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interrupts = <3>;
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clocks = <&v2m_sysctl 2>, <&v2m_sysctl 3>, <&smbclk>;
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clock-names = "timclken1", "timclken2", "apb_pclk";
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};
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/* DVI I2C bus */
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v2m_i2c_dvi: i2c@16000 {
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compatible = "arm,versatile-i2c";
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reg = <0x16000 0x1000>;
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#address-cells = <1>;
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#size-cells = <0>;
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dvi-transmitter@39 {
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compatible = "sil,sii9022-tpi", "sil,sii9022";
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reg = <0x39>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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/*
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* Both the core tile and the motherboard routes their output
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* pads to this transmitter. The motherboard system controller
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* can select one of them as input using a mux register in
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* "arm,vexpress-muxfpga". The Vexpress with the CA9 core tile is
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* the only platform with this specific set-up.
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*/
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port@0 {
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reg = <0>;
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dvi_bridge_in_ct: endpoint {
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remote-endpoint = <&clcd_pads_ct>;
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};
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};
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port@1 {
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reg = <1>;
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dvi_bridge_in_mb: endpoint {
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remote-endpoint = <&clcd_pads_mb>;
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};
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};
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};
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};
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dvi-transmitter@60 {
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compatible = "sil,sii9022-cpi", "sil,sii9022";
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reg = <0x60>;
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};
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};
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rtc@17000 {
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compatible = "arm,pl031", "arm,primecell";
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reg = <0x17000 0x1000>;
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interrupts = <4>;
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clocks = <&smbclk>;
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clock-names = "apb_pclk";
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};
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compact-flash@1a000 {
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compatible = "arm,vexpress-cf", "ata-generic";
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reg = <0x1a000 0x100
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0x1a100 0xf00>;
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reg-shift = <2>;
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};
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clcd@1f000 {
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compatible = "arm,pl111", "arm,primecell";
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reg = <0x1f000 0x1000>;
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interrupt-names = "combined";
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interrupts = <14>;
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clocks = <&v2m_oscclk1>, <&smbclk>;
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clock-names = "clcdclk", "apb_pclk";
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/* 800x600 16bpp @36MHz works fine */
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max-memory-bandwidth = <54000000>;
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memory-region = <&vram>;
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port {
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clcd_pads_mb: endpoint {
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remote-endpoint = <&dvi_bridge_in_mb>;
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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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};
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v2m_fixed_3v3: fixed-regulator-0 {
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compatible = "regulator-fixed";
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regulator-name = "3V3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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v2m_clk24mhz: clk24mhz {
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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 = "v2m:clk24mhz";
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};
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v2m_refclk1mhz: refclk1mhz {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <1000000>;
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clock-output-names = "v2m:refclk1mhz";
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};
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v2m_refclk32khz: refclk32khz {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <32768>;
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clock-output-names = "v2m:refclk32khz";
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};
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leds {
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compatible = "gpio-leds";
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user1 {
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label = "v2m:green:user1";
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gpios = <&v2m_led_gpios 0 0>;
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linux,default-trigger = "heartbeat";
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};
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user2 {
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label = "v2m:green:user2";
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gpios = <&v2m_led_gpios 1 0>;
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linux,default-trigger = "mmc0";
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};
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user3 {
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label = "v2m:green:user3";
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gpios = <&v2m_led_gpios 2 0>;
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linux,default-trigger = "cpu0";
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};
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user4 {
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label = "v2m:green:user4";
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gpios = <&v2m_led_gpios 3 0>;
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linux,default-trigger = "cpu1";
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};
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user5 {
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label = "v2m:green:user5";
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gpios = <&v2m_led_gpios 4 0>;
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linux,default-trigger = "cpu2";
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};
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user6 {
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label = "v2m:green:user6";
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gpios = <&v2m_led_gpios 5 0>;
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linux,default-trigger = "cpu3";
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};
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user7 {
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label = "v2m:green:user7";
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gpios = <&v2m_led_gpios 6 0>;
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linux,default-trigger = "cpu4";
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};
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user8 {
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label = "v2m:green:user8";
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gpios = <&v2m_led_gpios 7 0>;
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linux,default-trigger = "cpu5";
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};
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};
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mcc {
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compatible = "arm,vexpress,config-bus";
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arm,vexpress,config-bridge = <&v2m_sysreg>;
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oscclk0 {
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/* MCC static memory 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 = <25000000 60000000>;
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#clock-cells = <0>;
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clock-output-names = "v2m:oscclk0";
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};
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v2m_oscclk1: oscclk1 {
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/* CLCD 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 = <23750000 65000000>;
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#clock-cells = <0>;
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clock-output-names = "v2m:oscclk1";
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};
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v2m_oscclk2: oscclk2 {
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/* IO FPGA peripheral 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 = <24000000 24000000>;
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#clock-cells = <0>;
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clock-output-names = "v2m:oscclk2";
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};
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volt-vio {
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/* Logic level 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 = "VIO";
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regulator-always-on;
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label = "VIO";
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};
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temp-mcc {
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/* MCC internal operating temperature */
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compatible = "arm,vexpress-temp";
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arm,vexpress-sysreg,func = <4 0>;
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label = "MCC";
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};
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reset {
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compatible = "arm,vexpress-reset";
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arm,vexpress-sysreg,func = <5 0>;
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};
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muxfpga {
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compatible = "arm,vexpress-muxfpga";
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arm,vexpress-sysreg,func = <7 0>;
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};
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shutdown {
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compatible = "arm,vexpress-shutdown";
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arm,vexpress-sysreg,func = <8 0>;
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};
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reboot {
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compatible = "arm,vexpress-reboot";
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arm,vexpress-sysreg,func = <9 0>;
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};
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dvimode {
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compatible = "arm,vexpress-dvimode";
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arm,vexpress-sysreg,func = <11 0>;
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};
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};
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};
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};
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}; |