Provide just enough bits (clocks, clocksource, uart) to allow a kernel
to boot on the JZ4770 SoC to a initramfs userspace.
Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
Reviewed-by: PrasannaKumar Muralidharan <prasannatsmkumar@xxxxxxxxx>
---
arch/mips/boot/dts/ingenic/jz4770.dtsi | 212 +++++++++++++++++++++++++++++++++
arch/mips/jz4740/Kconfig | 6 +
arch/mips/jz4740/time.c | 2 +-
3 files changed, 219 insertions(+), 1 deletion(-)
create mode 100644 arch/mips/boot/dts/ingenic/jz4770.dtsi
v2: No change
v3: No change
v4: No change
v5: Use SPDX license identifier
v6: No change
v7: No change
diff --git a/arch/mips/boot/dts/ingenic/jz4770.dtsi b/arch/mips/boot/dts/ingenic/jz4770.dtsi
new file mode 100644
index 000000000000..7c2804f3f5f1
--- /dev/null
+++ b/arch/mips/boot/dts/ingenic/jz4770.dtsi
@@ -0,0 +1,212 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/clock/jz4770-cgu.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ingenic,jz4770";
+
+ cpuintc: interrupt-controller {
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ compatible = "mti,cpu-interrupt-controller";
+ };
+
+ intc: interrupt-controller@10001000 {
+ compatible = "ingenic,jz4770-intc";
+ reg = <0x10001000 0x40>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&cpuintc>;
+ interrupts = <2>;
+ };
+
+ ext: ext {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ };
+
+ osc32k: osc32k {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ };
+
+ cgu: jz4770-cgu@10000000 {
+ compatible = "ingenic,jz4770-cgu";
+ reg = <0x10000000 0x100>;
+
+ clocks = <&ext>, <&osc32k>;
+ clock-names = "ext", "osc32k";
+
+ #clock-cells = <1>;
+ };
+
+ pinctrl: pin-controller@10010000 {
+ compatible = "ingenic,jz4770-pinctrl";
+ reg = <0x10010000 0x600>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpa: gpio@0 {
+ compatible = "ingenic,jz4770-gpio";
+ reg = <0>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 0 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <17>;
+ };
+
+ gpb: gpio@1 {
+ compatible = "ingenic,jz4770-gpio";
+ reg = <1>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 32 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <16>;
+ };
+
+ gpc: gpio@2 {
+ compatible = "ingenic,jz4770-gpio";
+ reg = <2>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 64 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <15>;
+ };
+
+ gpd: gpio@3 {
+ compatible = "ingenic,jz4770-gpio";
+ reg = <3>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 96 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <14>;
+ };
+
+ gpe: gpio@4 {
+ compatible = "ingenic,jz4770-gpio";
+ reg = <4>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 128 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <13>;
+ };
+
+ gpf: gpio@5 {
+ compatible = "ingenic,jz4770-gpio";
+ reg = <5>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 160 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <12>;
+ };
+ };
+
+ uart0: serial@10030000 {
+ compatible = "ingenic,jz4770-uart";
+ reg = <0x10030000 0x100>;
+
+ clocks = <&ext>, <&cgu JZ4770_CLK_UART0>;
+ clock-names = "baud", "module";
+
+ interrupt-parent = <&intc>;
+ interrupts = <5>;
+
+ status = "disabled";
+ };
+
+ uart1: serial@10031000 {
+ compatible = "ingenic,jz4770-uart";
+ reg = <0x10031000 0x100>;
+
+ clocks = <&ext>, <&cgu JZ4770_CLK_UART1>;
+ clock-names = "baud", "module";
+
+ interrupt-parent = <&intc>;
+ interrupts = <4>;
+
+ status = "disabled";
+ };
+
+ uart2: serial@10032000 {
+ compatible = "ingenic,jz4770-uart";
+ reg = <0x10032000 0x100>;
+
+ clocks = <&ext>, <&cgu JZ4770_CLK_UART2>;
+ clock-names = "baud", "module";
+
+ interrupt-parent = <&intc>;
+ interrupts = <3>;
+
+ status = "disabled";
+ };
+
+ uart3: serial@10033000 {
+ compatible = "ingenic,jz4770-uart";
+ reg = <0x10033000 0x100>;
+
+ clocks = <&ext>, <&cgu JZ4770_CLK_UART3>;
+ clock-names = "baud", "module";
+
+ interrupt-parent = <&intc>;
+ interrupts = <2>;
+
+ status = "disabled";
+ };
+
+ uhc: uhc@13430000 {
+ compatible = "generic-ohci";
+ reg = <0x13430000 0x1000>;
+
+ clocks = <&cgu JZ4770_CLK_UHC>, <&cgu JZ4770_CLK_UHC_PHY>;
+ assigned-clocks = <&cgu JZ4770_CLK_UHC>;
+ assigned-clock-rates = <48000000>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <20>;
+
+ status = "disabled";
+ };
+};
diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig
index 643af2012e14..29a9361a2b77 100644
--- a/arch/mips/jz4740/Kconfig
+++ b/arch/mips/jz4740/Kconfig
@@ -18,6 +18,12 @@ config MACH_JZ4740
bool
select SYS_HAS_CPU_MIPS32_R1
+config MACH_JZ4770
+ bool
+ select MIPS_CPU_SCACHE
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_SUPPORTS_HIGHMEM
+
config MACH_JZ4780
bool
select MIPS_CPU_SCACHE
diff --git a/arch/mips/jz4740/time.c b/arch/mips/jz4740/time.c
index bb1ad5119da4..2ca9160f642a 100644
--- a/arch/mips/jz4740/time.c
+++ b/arch/mips/jz4740/time.c
@@ -113,7 +113,7 @@ static struct clock_event_device jz4740_clockevent = {
#ifdef CONFIG_MACH_JZ4740
.irq = JZ4740_IRQ_TCU0,
#endif
-#ifdef CONFIG_MACH_JZ4780
+#if defined(CONFIG_MACH_JZ4770) || defined(CONFIG_MACH_JZ4780)
.irq = JZ4780_IRQ_TCU2,
#endif
};
--
2.11.0
