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| author | David Lechner <david@lechnology.com> | 2019-05-28 20:56:42 -0500 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-07-13 11:11:28 -0400 |
| commit | 1d259e4d6862872b7a9c1d240eaa4b4cec95aadf (patch) | |
| tree | bd8d77e0d80b91eade554ac4cdee46c262a80f04 /arch | |
| parent | fb9a1ffef38e49597939f01b89ed521fdb5de99b (diff) | |
| download | u-boot-1d259e4d6862872b7a9c1d240eaa4b4cec95aadf.zip u-boot-1d259e4d6862872b7a9c1d240eaa4b4cec95aadf.tar.gz u-boot-1d259e4d6862872b7a9c1d240eaa4b4cec95aadf.tar.bz2 | |
ARM: legoev3: convert to driver model
This converts LEGO MINDSTORMS EV3 to the driver model. MMC, SERIAL, SPI
and SPI_FLASH are converted.
The device tree contains only the minimal nodes required by U-Boot
since the size of U-Boot is limited to 256K on this device.
Signed-off-by: David Lechner <david@lechnology.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/dts/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/dts/da850-lego-ev3.dts | 89 |
2 files changed, 91 insertions, 1 deletions
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 20dbc2f..b593c9e 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -30,7 +30,8 @@ dtb-$(CONFIG_EXYNOS7420) += exynos7420-espresso7420.dtb dtb-$(CONFIG_ARCH_DAVINCI) += \ da850-evm.dtb \ - da850-lcdk.dtb + da850-lcdk.dtb \ + da850-lego-ev3.dtb dtb-$(CONFIG_KIRKWOOD) += \ kirkwood-atl-sbx81lifkw.dtb \ diff --git a/arch/arm/dts/da850-lego-ev3.dts b/arch/arm/dts/da850-lego-ev3.dts new file mode 100644 index 0000000..e281d03 --- /dev/null +++ b/arch/arm/dts/da850-lego-ev3.dts @@ -0,0 +1,89 @@ +/* + * Device tree for LEGO MINDSTORMS EV3 + * + * Copyright (C) 2017 David Lechner <david@lechnology.com> + * + * SPDX-License-Identifier: GPL-2.0+ + * + * This is an absolute minimum device tree instead of using the one from Linux + * because the bootloader on the EV3 is limited to 256k. This saves us >10k. + */ + +/dts-v1/; + +/ { + #address-cells = <1>; + #size-cells = <1>; + compatible = "lego,ev3", "ti,da850"; + model = "LEGO MINDSTORMS EV3"; + + aliases { + serial1 = &serial1; + spi0 = &spi0; + }; + + chosen { + stdout-path = &serial1; + }; + + memory { + device_type = "memory"; + reg = <0xc0000000 0x04000000>; + }; + + arm { + #address-cells = <1>; + #size-cells = <1>; + ranges; + intc: interrupt-controller@fffee000 { + compatible = "ti,cp-intc"; + interrupt-controller; + #interrupt-cells = <1>; + ti,intc-size = <101>; + reg = <0xfffee000 0x2000>; + }; + }; + + soc@1c00000 { + compatible = "simple-bus"; + model = "da850"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x01c00000 0x400000>; + interrupt-parent = <&intc>; + + mmc0: mmc@40000 { + compatible = "ti,da830-mmc"; + reg = <0x40000 0x1000>; + cap-sd-highspeed; + cap-mmc-highspeed; + interrupts = <16>; + max-frequency = <50000000>; + bus-width = <4>; + }; + + spi0: spi@41000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "ti,da830-spi"; + reg = <0x41000 0x1000>; + num-cs = <6>; + ti,davinci-spi-intr-line = <1>; + interrupts = <20>; + + flash@0 { + compatible = "micron,n25q128a13", "jedec,spi-nor", "spi-flash"; + reg = <0>; + spi-max-frequency = <50000000>; + }; + }; + + serial1: serial@10c000 { + compatible = "ti,da830-uart", "ns16550a"; + reg = <0x10c000 0x100>; + reg-io-width = <4>; + reg-shift = <2>; + interrupts = <53>; + }; + }; +}; |