Erizo is an opensource hardware SoC for FPGA.
Signed-off-by: Antony Pavlov <antonynpavlov@xxxxxxxxx>
---
arch/riscv/Kconfig | 11 ++++++++
arch/riscv/Makefile | 2 ++
arch/riscv/dts/Makefile | 2 ++
arch/riscv/dts/erizo-generic.dts | 14 ++++++++++
arch/riscv/dts/erizo.dtsi | 46 ++++++++++++++++++++++++++++++++
arch/riscv/mach-erizo/Kconfig | 11 ++++++++
arch/riscv/mach-erizo/Makefile | 3 +++
7 files changed, 89 insertions(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index c9719dfeca..ee532ac11a 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -15,6 +15,15 @@ config ARCH_TEXT_BASE
menu "Machine selection"
+choice
+ prompt "System type"
+ default MACH_ERIZO
+
+config MACH_ERIZO
+ bool "erizo family"
+
+endchoice
+
choice
prompt "Base ISA"
default ARCH_RV32I
@@ -51,4 +60,6 @@ config BUILTIN_DTB_NAME
string "DTB to build into the barebox image"
depends on BUILTIN_DTB
+source arch/riscv/mach-erizo/Kconfig
+
endmenu
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 28eb414452..d5a392de05 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -11,6 +11,8 @@ cflags-y += -Wall -Wstrict-prototypes \
LDFLAGS += $(ldflags-y)
LDFLAGS_barebox += -nostdlib
+machine-$(CONFIG_MACH_ERIZO) := erizo
+
TEXT_BASE = $(CONFIG_TEXT_BASE)
CPPFLAGS += -DTEXT_BASE=$(CONFIG_TEXT_BASE)
diff --git a/arch/riscv/dts/Makefile b/arch/riscv/dts/Makefile
index 0a88af1603..903fe8ff34 100644
--- a/arch/riscv/dts/Makefile
+++ b/arch/riscv/dts/Makefile
@@ -3,6 +3,8 @@ ifneq ($(BUILTIN_DTB),)
obj-dtb-$(CONFIG_BUILTIN_DTB) += $(BUILTIN_DTB).dtb.o
endif
+obj-dtb-$(CONFIG_BOARD_ERIZO_GENERIC) += erizo-generic.dtb.o
+
# just to build a built-in.o. Otherwise compilation fails when no devicetree is
# created.
obj- += dummy.o
diff --git a/arch/riscv/dts/erizo-generic.dts b/arch/riscv/dts/erizo-generic.dts
new file mode 100644
index 0000000000..d1f8d57168
--- /dev/null
+++ b/arch/riscv/dts/erizo-generic.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include "erizo.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "generic Erizo SoC board";
+ compatible = "miet-riscv-workgroup,erizo-generic-board";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x80000000 0x00800000>;
+ };
+};
diff --git a/arch/riscv/dts/erizo.dtsi b/arch/riscv/dts/erizo.dtsi
new file mode 100644
index 0000000000..07534798ac
--- /dev/null
+++ b/arch/riscv/dts/erizo.dtsi
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/dts-v1/;
+
+/ {
+ compatible = "miet-riscv-workgroup,erizo";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ clocks {
+ ref_clk: ref_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ };
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "cliffordwolf,picorv32";
+ clocks = <&ref_clk>;
+ reg = <0>;
+ };
+ };
+
+ uart0: uart@90000000 {
+ compatible = "ns16550a";
+ reg = <0x90000000 0x20>;
+ reg-shift = <2>;
+ clocks = <&ref_clk>;
+ };
+
+ gpio0: gpio@91000000 {
+ compatible = "wd,mbl-gpio";
+ reg-names = "dat", "dirout";
+ reg = <0x91000000 0x4>,
+ <0x91000004 0x4>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+};
diff --git a/arch/riscv/mach-erizo/Kconfig b/arch/riscv/mach-erizo/Kconfig
new file mode 100644
index 0000000000..2400b4437b
--- /dev/null
+++ b/arch/riscv/mach-erizo/Kconfig
@@ -0,0 +1,11 @@
+if MACH_ERIZO
+
+choice
+ prompt "Board type"
+
+config BOARD_ERIZO_GENERIC
+ bool "erizo generic board"
+
+endchoice
+
+endif
diff --git a/arch/riscv/mach-erizo/Makefile b/arch/riscv/mach-erizo/Makefile
new file mode 100644
index 0000000000..d9c51e74c3
--- /dev/null
+++ b/arch/riscv/mach-erizo/Makefile
@@ -0,0 +1,3 @@
+# just to build a built-in.o. Otherwise compilation fails when no o-files is
+# created.
+obj- += dummy.o
--
2.20.0
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