Unverified Commit c48c4a4c authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Palmer Dabbelt
Browse files

riscv: Add Kendryte K210 SoC support 



Add support for the Kendryte K210 RISC-V SoC. For now, this support
only provides a simple sysctl driver allowing to setup the CPU and
uart clock. This support is enabled through the new Kconfig option
SOC_KENDRYTE and defines the config option CONFIG_K210_SYSCTL
to enable the K210 SoC sysctl driver compilation.

The sysctl driver also registers an early SoC initialization function
allowing enabling the general purpose use of the 2MB of SRAM normally
reserved for the SoC AI engine. This initialization function is
automatically called before the dt early initialization using the flat
dt root node compatible property matching the value "kendryte,k210".

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarDamien Le Moal <damien.lemoal@wdc.com>
[Palmer: Add missing endmenu in Kconfig.socs]
Signed-off-by: default avatarPalmer Dabbelt <palmerdabbelt@google.com>
parent 335b1390

arch/riscv/Kconfig.socs

+30 −0
Original line number Diff line number Diff line
@@ -10,4 +10,34 @@ config SOC_SIFIVE 
	help

	  This enables support for SiFive SoC platform hardware.



config SOC_VIRT

       bool "QEMU Virt Machine"

       select VIRTIO_PCI

       select VIRTIO_BALLOON

       select VIRTIO_MMIO

       select VIRTIO_CONSOLE

       select VIRTIO_NET

       select NET_9P_VIRTIO

       select VIRTIO_BLK

       select SCSI_VIRTIO

       select DRM_VIRTIO_GPU

       select HW_RANDOM_VIRTIO

       select RPMSG_CHAR

       select RPMSG_VIRTIO

       select CRYPTO_DEV_VIRTIO

       select VIRTIO_INPUT

       select POWER_RESET_SYSCON

       select POWER_RESET_SYSCON_POWEROFF

       select GOLDFISH

       select RTC_DRV_GOLDFISH

       select SIFIVE_PLIC

       help

         This enables support for QEMU Virt Machine.



config SOC_KENDRYTE

	bool "Kendryte K210 SoC"

	depends on !MMU

	help

	  This enables support for Kendryte K210 SoC platform hardware.



endmenu

drivers/soc/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -22,5 +22,6 @@ source "drivers/soc/ux500/Kconfig" 
source "drivers/soc/versatile/Kconfig"

source "drivers/soc/xilinx/Kconfig"

source "drivers/soc/zte/Kconfig"

source "drivers/soc/kendryte/Kconfig"



endmenu

drivers/soc/Makefile

+1 −0
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@@ -28,3 +28,4 @@ obj-$(CONFIG_ARCH_U8500) += ux500/ 
obj-$(CONFIG_PLAT_VERSATILE)	+= versatile/

obj-y				+= xilinx/

obj-$(CONFIG_ARCH_ZX)		+= zte/

obj-$(CONFIG_SOC_KENDRYTE)	+= kendryte/

drivers/soc/kendryte/Kconfig

0 → 100644
+14 −0
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# SPDX-License-Identifier: GPL-2.0



if SOC_KENDRYTE



config K210_SYSCTL

	bool "Kendryte K210 system controller"

	default y

	depends on RISCV

	help

	  Enables controlling the K210 various clocks and to enable

	  general purpose use of the extra 2MB of SRAM normally

	  reserved for the AI engine.



endif

drivers/soc/kendryte/Makefile

0 → 100644
+3 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0



obj-$(CONFIG_K210_SYSCTL)	+= k210-sysctl.o

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