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[220.213.56.133]) by smtp.gmail.com with ESMTPSA id a11sm3683616pfn.125.2020.11.11.13.40.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Nov 2020 13:40:20 -0800 (PST) From: Stafford Horne To: LKML Cc: Filip Kokosinski , Mateusz Holenko , Stafford Horne , Karol Gugala , Rob Herring , Jonas Bonn , Stefan Kristiansson , devicetree@vger.kernel.org, openrisc@lists.librecores.org Subject: [PATCH] openrisc: add support for LiteX Date: Thu, 12 Nov 2020 06:39:59 +0900 Message-Id: <20201111214003.1506246-1-shorne@gmail.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Filip Kokosinski This adds support for a basic LiteX-based SoC with a mor1kx soft CPU. Signed-off-by: Filip Kokosinski Signed-off-by: Mateusz Holenko [shorne: Merged in soc-cntl patch, removed CROSS_COMPILE, sort MAINT.] Signed-off-by: Stafford Horne --- MAINTAINERS | 1 + arch/openrisc/boot/dts/or1klitex.dts | 55 +++++++++++++++++++++++ arch/openrisc/configs/or1klitex_defconfig | 18 ++++++++ 3 files changed, 74 insertions(+) create mode 100644 arch/openrisc/boot/dts/or1klitex.dts create mode 100644 arch/openrisc/configs/or1klitex_defconfig diff --git a/MAINTAINERS b/MAINTAINERS index 0b1f39b3938d..9c55a54c9673 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10177,6 +10177,7 @@ M: Karol Gugala M: Mateusz Holenko 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 + */ + +/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 -- 2.26.2