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authorPalmer Dabbelt <palmerdabbelt@google.com>2020-04-14 13:43:25 +0900
committerPalmer Dabbelt <palmerdabbelt@google.com>2020-05-18 11:38:06 -0700
commit8bb6617427761c04b9670f8554fa63a1ef2d2807 (patch)
treeb49fe2219d89e041a613f521adb0a6386ef346b7 /arch/riscv/Kconfig.socs
parent2d2682512f0faf4d09a696184bf3c0bb6838baca (diff)
riscv: K210: Add a built-in device tree
The K210's bootloader does not provide a device tree. Give the ability to providea builtin one with the SOC_KENDRYTE_K210_BUILTIN_DTB option. If selected, this option result in the definition of a builtin DTB entry in the k210 sysctl driver. If defined, the builtin DTB entry points to the default k210.dts device tree file and is keyed with the vendor ID 0x4B5, the arch ID 0xE59889E6A5A04149 ("Canaan AI" in UTF-8 coded Chinese) and the impl ID 0x4D41495832303030 ("MAIX200"). These values are reported by the SiPEED MAIXDUINO board, the SiPEED MAIX Go board and the SiPEED Dan Dock board. [Thanks to Damien for the K210 IDs] Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/Kconfig.socs')
-rw-r--r--arch/riscv/Kconfig.socs17
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
index d646332e44f1..6c88148f1b9b 100644
--- a/arch/riscv/Kconfig.socs
+++ b/arch/riscv/Kconfig.socs
@@ -24,11 +24,26 @@ config SOC_VIRT
config SOC_KENDRYTE
bool "Kendryte K210 SoC"
depends on !MMU
- select BUILTIN_DTB
select SERIAL_SIFIVE if TTY
select SERIAL_SIFIVE_CONSOLE if TTY
select SIFIVE_PLIC
help
This enables support for Kendryte K210 SoC platform hardware.
+config SOC_KENDRYTE_K210_DTB
+ def_bool y
+ depends on SOC_KENDRYTE_K210_DTB_BUILTIN
+
+config SOC_KENDRYTE_K210_DTB_BUILTIN
+ bool "Builtin device tree for the Kendryte K210"
+ depends on SOC_KENDRYTE
+ default y
+ select OF
+ select BUILTIN_DTB
+ select SOC_KENDRYTE_K210_DTB
+ help
+ Builds a device tree for the Kendryte K210 into the Linux image.
+ This option should be selected if no bootloader is being used.
+ If unsure, say Y.
+
endmenu