diff options
| author | Damien Le Moal <damien.lemoal@wdc.com> | 2019-01-14 13:00:37 +0900 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2019-01-21 09:58:33 +0530 |
| commit | 868ad0b0e51a5e10e77c9bd380240b98d6a133be (patch) | |
| tree | c40016917a1ae66b57d8e7b3b2080ed872ae639e /platform/kendryte | |
| parent | 58d9f2983a4a1ebdbe62f7d40e10ea3bc7d6bbaf (diff) | |
kendryte/k210: Add device tree support
The Kendryte k210 board initial loader does not provide a device tree
for the firmware and subsequent payload. Add the k210.dts device tree
description file to solve this. This file describes only the SoC core
components: CPUs, memory and PLIC.
Automatically compile and add this file to the firmware generated
using the FW_PAYLOAD_FDT_PATH configuration parameter.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Diffstat (limited to 'platform/kendryte')
| -rw-r--r-- | platform/kendryte/k210/config.mk | 1 | ||||
| -rw-r--r-- | platform/kendryte/k210/k210.dts | 70 | ||||
| -rw-r--r-- | platform/kendryte/k210/objects.mk | 1 |
3 files changed, 72 insertions, 0 deletions
diff --git a/platform/kendryte/k210/config.mk b/platform/kendryte/k210/config.mk index eed8bfb..14747c0 100644 --- a/platform/kendryte/k210/config.mk +++ b/platform/kendryte/k210/config.mk @@ -21,6 +21,7 @@ PLATFORM_SYS_CLINT=y FW_TEXT_START=0x80000000 FW_PAYLOAD=y FW_PAYLOAD_ALIGN=0x1000 +FW_PAYLOAD_FDT=k210.dtb # External Libraries to include PLATFORM_INCLUDE_LIBC=y diff --git a/platform/kendryte/k210/k210.dts b/platform/kendryte/k210/k210.dts new file mode 100644 index 0000000..17f5214 --- /dev/null +++ b/platform/kendryte/k210/k210.dts @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2018 Western Digital Corporation or its affiliates. + * + * Authors: + * Damien Le Moal <damien.lemoal@wdc.com> + * + * SPDX-License-Identifier: BSD-2-Clause + */ + +/dts-v1/; +/ { + #address-cells = <2>; + #size-cells = <2>; + compatible = "kendryte,k210"; + + chosen { + bootargs = "console=hvc0 earlycon=sbi"; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + cpu0: cpu@0 { + device_type = "cpu"; + clock-frequency = <390000000>; + i-cache-size = <32768>; + d-cache-size = <32768>; + mmu-type = "none"; + reg = <0>; + riscv,isa = "rv64imafdc"; + status = "okay"; + cpu0_intc: interrupt-controller { + #interrupt-cells = <1>; + compatible = "riscv,cpu-intc"; + interrupt-controller; + }; + }; + cpu1: cpu@1 { + device_type = "cpu"; + clock-frequency = <390000000>; + d-cache-size = <32768>; + i-cache-size = <32768>; + mmu-type = "none"; + reg = <1>; + riscv,isa = "rv64imafdc"; + status = "okay"; + cpu1_intc: interrupt-controller { + #interrupt-cells = <1>; + compatible = "riscv,cpu-intc"; + interrupt-controller; + }; + }; + }; + + memory@80000000 { + /* Bank 0: 4 MB, Bank 1: 2 MB, AI chip SRAM: 2MB */ + device_type = "memory"; + reg = <0x00000000 0x80000000 0x00000000 0x00800000>; + }; + + plic0: interrupt-controller@C000000 { + #interrupt-cells = <1>; + compatible = "riscv,plic0"; + interrupt-controller; + interrupts-extended = + <&cpu0_intc 11 &cpu0_intc 9 + &cpu1_intc 11 &cpu1_intc 9>; + reg = <0x0 0xc000000 0x0 0x4000000>; + }; +}; diff --git a/platform/kendryte/k210/objects.mk b/platform/kendryte/k210/objects.mk index 1f0a20b..a8a6e35 100644 --- a/platform/kendryte/k210/objects.mk +++ b/platform/kendryte/k210/objects.mk @@ -8,3 +8,4 @@ # platform-objs-y += uarths.o sysctl.o platform.o +platform-dtb-y += k210.dtb |