diff options
| author | Filip Kokosinski <fkokosinski@antmicro.com> | 2019-09-19 13:42:45 +0200 |
|---|---|---|
| committer | Stafford Horne <shorne@gmail.com> | 2020-11-11 22:31:04 +0100 |
| commit | f81cc5ac8c2b5c0e2e190ea181ab2b9e5cf8497d (patch) | |
| tree | 77345f67ba48197dcd535b05c12122ebf105fcad | |
| parent | drivers/tty/serial: add LiteUART driver (diff) | |
| download | linux-f81cc5ac8c2b5c0e2e190ea181ab2b9e5cf8497d.tar.xz linux-f81cc5ac8c2b5c0e2e190ea181ab2b9e5cf8497d.zip | |
openrisc: add support for LiteX
This adds support for a basic LiteX-based SoC with a mor1kx soft CPU.
Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
Signed-off-by: Mateusz Holenko <mholenko@antmicro.com>
[shorne: Merged in soc-cntl patch, removed CROSS_COMPILE, sort MAINT.]
Signed-off-by: Stafford Horne <shorne@gmail.com>
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | arch/openrisc/boot/dts/or1klitex.dts | 55 | ||||
| -rw-r--r-- | arch/openrisc/configs/or1klitex_defconfig | 18 |
3 files changed, 74 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 0b1f39b3938d..9c55a54c9673 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10177,6 +10177,7 @@ M: Karol Gugala <kgugala@antmicro.com> M: Mateusz Holenko <mholenko@antmicro.com> S: Maintained F: Documentation/devicetree/bindings/*/litex,*.yaml +F: arch/openrisc/boot/dts/or1klitex.dts F: drivers/soc/litex/litex_soc_ctrl.c F: drivers/tty/serial/liteuart.c F: include/linux/litex.h diff --git a/arch/openrisc/boot/dts/or1klitex.dts b/arch/openrisc/boot/dts/or1klitex.dts new file mode 100644 index 000000000000..3f9867aa3844 --- /dev/null +++ b/arch/openrisc/boot/dts/or1klitex.dts @@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * LiteX-based System on Chip + * + * Copyright (C) 2019 Antmicro <www.antmicro.com> + */ + +/dts-v1/; +/ { + compatible = "opencores,or1ksim"; + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&pic>; + + aliases { + serial0 = &serial0; + }; + + chosen { + bootargs = "console=liteuart"; + }; + + memory@0 { + device_type = "memory"; + reg = <0x00000000 0x10000000>; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + cpu@0 { + compatible = "opencores,or1200-rtlsvn481"; + reg = <0>; + clock-frequency = <100000000>; + }; + }; + + pic: pic { + compatible = "opencores,or1k-pic"; + #interrupt-cells = <1>; + interrupt-controller; + }; + + serial0: serial@e0002000 { + device_type = "serial"; + compatible = "litex,liteuart"; + reg = <0xe0002000 0x100>; + }; + + soc_ctrl0: soc_controller@e0000000 { + compatible = "litex,soc-controller"; + reg = <0xe0000000 0xc>; + status = "okay"; + }; +}; diff --git a/arch/openrisc/configs/or1klitex_defconfig b/arch/openrisc/configs/or1klitex_defconfig new file mode 100644 index 000000000000..3c2c70d3d740 --- /dev/null +++ b/arch/openrisc/configs/or1klitex_defconfig @@ -0,0 +1,18 @@ +CONFIG_BLK_DEV_INITRD=y +CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y +CONFIG_BUG_ON_DATA_CORRUPTION=y +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_EMBEDDED=y +CONFIG_HZ_100=y +CONFIG_INITRAMFS_SOURCE="openrisc-rootfs.cpio.gz" +CONFIG_OF_OVERLAY=y +CONFIG_OPENRISC_BUILTIN_DTB="or1klitex" +CONFIG_PANIC_ON_OOPS=y +CONFIG_PRINTK_TIME=y +CONFIG_LITEX_SOC_CONTROLLER=y +CONFIG_SERIAL_LITEUART=y +CONFIG_SERIAL_LITEUART_CONSOLE=y +CONFIG_SOFTLOCKUP_DETECTOR=y +CONFIG_TTY_PRINTK=y |