Re: [PATCH 3/3] arm64: dts: Add MediaTek MT8188 dts and evaluation board and Makefile

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Il 05/07/23 08:57, Jason-ch Chen ha scritto:
From: jason-ch chen <Jason-ch.Chen@xxxxxxxxxxxx>

MT8188 is a SoC based on 64bit ARMv8 architecture. It contains 6 CA55
and 2 CA78 cores. MT8188 share many HW IP with MT65xx series.

We add basic chip support for MediaTek MT8188 on evaluation board.

Signed-off-by: jason-ch chen <Jason-ch.Chen@xxxxxxxxxxxx>
---
  arch/arm64/boot/dts/mediatek/Makefile       |   1 +
  arch/arm64/boot/dts/mediatek/mt8188-evb.dts | 402 +++++++++
  arch/arm64/boot/dts/mediatek/mt8188.dtsi    | 926 ++++++++++++++++++++
  3 files changed, 1329 insertions(+)
  create mode 100644 arch/arm64/boot/dts/mediatek/mt8188-evb.dts
  create mode 100644 arch/arm64/boot/dts/mediatek/mt8188.dtsi

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index c99c3372a4b5..9bd2324259a3 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -44,6 +44,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8183-kukui-krane-sku0.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt8183-kukui-krane-sku176.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt8183-pumpkin.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-evb.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8188-evb.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt8192-asurada-hayato-r1.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt8192-asurada-spherion-r0.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt8192-evb.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt8188-evb.dts b/arch/arm64/boot/dts/mediatek/mt8188-evb.dts
new file mode 100644
index 000000000000..d3872196200a
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8188-evb.dts
@@ -0,0 +1,402 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2023 MediaTek Inc.
+ */
+/dts-v1/;
+#include "mt8188.dtsi"
+#include "mt6359.dtsi"
+
+/ {
+	model = "MediaTek MT8188 evaluation board";
+	compatible = "mediatek,mt8188-evb", "mediatek,mt8188";
+
+	aliases {
+		serial0 = &uart0;
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
+		i2c3 = &i2c3;
+		i2c4 = &i2c4;
+		i2c5 = &i2c5;
+		i2c6 = &i2c6;
+		mmc0 = &mmc0;
+	};
+
+	chosen: chosen {
+		stdout-path = "serial0:115200n8";
+		kaslr-seed = <0 0>;
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0 0x40000000 0 0x80000000>;
+	};
+
+	reserved_memory: reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		scp_mem_reserved: scp_mem_region {
+			compatible = "shared-dma-pool";
+			reg = <0 0x50000000 0 0x2900000>;
+			no-map;
+		};
+	};
+};
+
+&auxadc {
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	clock-frequency = <400000>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	clock-frequency = <400000>;
+	status = "okay";
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
+	clock-frequency = <400000>;
+	status = "okay";
+};
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins>;
+	clock-frequency = <400000>;
+	status = "okay";
+};
+
+&i2c4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c4_pins>;
+	clock-frequency = <400000>;
+	status = "okay";
+};
+
+&i2c5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c5_pins>;
+	clock-frequency = <400000>;
+	status = "okay";
+};
+
+&i2c6 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c6_pins>;
+	clock-frequency = <400000>;
+	status = "okay";
+};
+
+&mmc0 {
+	status = "okay";
+	pinctrl-names = "default", "state_uhs";
+	pinctrl-0 = <&mmc0_default_pins>;
+	pinctrl-1 = <&mmc0_uhs_pins>;
+	bus-width = <8>;
+	max-frequency = <200000000>;
+	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	mmc-hs400-1_8v;
+	supports-cqe;
+	cap-mmc-hw-reset;
+	no-sdio;
+	no-sd;
+	hs400-ds-delay = <0x1481b>;
+	vmmc-supply = <&mt6359_vemc_1_ldo_reg>;
+	vqmmc-supply = <&mt6359_vufs_ldo_reg>;
+	non-removable;
+};
+
+&mt6359_vbbck_ldo_reg {
+	regulator-always-on;
+};
+
+&mt6359_vcn33_2_bt_ldo_reg {
+	regulator-always-on;
+};
+
+&mt6359_vcore_buck_reg {
+	regulator-always-on;
+};
+
+&mt6359_vgpu11_buck_reg {
+	regulator-always-on;
+};
+
+&mt6359_vpu_buck_reg {
+	regulator-always-on;
+};
+
+&mt6359_vrf12_ldo_reg {
+	regulator-always-on;
+};
+
+&mt6359_vufs_ldo_reg {
+	regulator-always-on;
+};
+
+&nor_flash {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&nor_pins_default>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <52000000>;
+	};
+};
+
+&pio {
+	adsp_uart_pins: adsp-uart-pins {
+		pins_adsp_uart {

Please, no underscores. This should be `pins-adsp-uart`

+			pinmux = <PINMUX_GPIO35__FUNC_O_ADSP_UTXD0>,
+				 <PINMUX_GPIO36__FUNC_I1_ADSP_URXD0>;
+		};
+	};
+
+	i2c0_pins: i2c0-pins {
+		pins_bus {

pins-bus

+			pinmux = <PINMUX_GPIO56__FUNC_B1_SDA0>,
+				 <PINMUX_GPIO55__FUNC_B1_SCL0>;
+			bias-pull-up = <MTK_PULL_SET_RSEL_011>;
+		};
+	};
+

..snip..

+
+	mmc0_default_pins: mmc0-default-pins {
+		pins_cmd_dat {

pins-cmd-dat

+			pinmux = <PINMUX_GPIO161__FUNC_B1_MSDC0_DAT0>,
+				 <PINMUX_GPIO160__FUNC_B1_MSDC0_DAT1>,
+				 <PINMUX_GPIO159__FUNC_B1_MSDC0_DAT2>,
+				 <PINMUX_GPIO158__FUNC_B1_MSDC0_DAT3>,
+				 <PINMUX_GPIO154__FUNC_B1_MSDC0_DAT4>,
+				 <PINMUX_GPIO153__FUNC_B1_MSDC0_DAT5>,
+				 <PINMUX_GPIO152__FUNC_B1_MSDC0_DAT6>,
+				 <PINMUX_GPIO151__FUNC_B1_MSDC0_DAT7>,
+				 <PINMUX_GPIO156__FUNC_B1_MSDC0_CMD>;
+			input-enable;
+			drive-strength = <MTK_DRIVE_6mA>;

You don't need the MTK_DRIVE_(x)mA definitions here because:
1. The drive-strength property expresses values in milliamperes,
   for more information, check its description at pincfg-node.yaml;
2. Those definitions are mapping to mA values anyway, so, for example,
   MTK_DRIVE_6mA == 6, MTK_DRIVE_28mA == 28, etc.

This means that you can write this as:

			drive-strength = <6>;

please fix.

+			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+		};
+

..snip..

+
+&pmic {
+	interrupt-parent = <&pio>;
+	interrupts = <222 IRQ_TYPE_LEVEL_HIGH>;

You can do that in one line instead:

	interrupts-extended = <&pio 222 IRQ_TYPE_LEVEL_HIGH>;

+};
+
+&scp {
+	memory-region = <&scp_mem_reserved>;
+	status = "okay";
+};
+

..snip..

diff --git a/arch/arm64/boot/dts/mediatek/mt8188.dtsi b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
new file mode 100644
index 000000000000..8f042ffe0938
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
@@ -0,0 +1,926 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2023 MediaTek Inc.
+ *
+ */
+
+/dts-v1/;
+#include <dt-bindings/clock/mediatek,mt8188-clk.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/pinctrl/mediatek,mt8188-pinfunc.h>
+#include <dt-bindings/power/mediatek,mt8188-power.h>
+
+/ {
+	compatible = "mediatek,mt8188";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x000>;
+			enable-method = "psci";
+			clock-frequency = <2000000000>;
+			capacity-dmips-mhz = <282>;
+			cpu-idle-states = <&cpu_off_l &cluster_off_l>;

Can you please populate the cache properties?

i-cache-size, i-cache-line-size, i-cache-sets,
d-cache-size, d-cache-line-size, d-cache-sets are missing for all CPUs.

+			next-level-cache = <&l2_0>;
+			#cooling-cells = <2>;
+		};
+
+		cpu1: cpu@100 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x100>;
+			enable-method = "psci";
+			clock-frequency = <2000000000>;
+			capacity-dmips-mhz = <282>;
+			cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+			next-level-cache = <&l2_0>;
+			#cooling-cells = <2>;
+		};
+
+		cpu2: cpu@200 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x200>;
+			enable-method = "psci";
+			clock-frequency = <2000000000>;
+			capacity-dmips-mhz = <282>;
+			cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+			next-level-cache = <&l2_0>;
+			#cooling-cells = <2>;
+		};
+
+		cpu3: cpu@300 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x300>;
+			enable-method = "psci";
+			clock-frequency = <2000000000>;
+			capacity-dmips-mhz = <282>;
+			cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+			next-level-cache = <&l2_0>;
+			#cooling-cells = <2>;
+		};
+
+		cpu4: cpu@400 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x400>;
+			enable-method = "psci";
+			clock-frequency = <2000000000>;
+			capacity-dmips-mhz = <282>;
+			cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+			next-level-cache = <&l2_0>;
+			#cooling-cells = <2>;
+		};
+
+		cpu5: cpu@500 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x500>;
+			enable-method = "psci";
+			clock-frequency = <2000000000>;
+			capacity-dmips-mhz = <282>;
+			cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+			next-level-cache = <&l2_0>;
+			#cooling-cells = <2>;
+		};
+
+		cpu6: cpu@600 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a78";
+			reg = <0x600>;
+			enable-method = "psci";
+			clock-frequency = <2600000000>;
+			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&cpu_off_b &cluster_off_b>;
+			next-level-cache = <&l2_1>;
+			#cooling-cells = <2>;
+		};
+
+		cpu7: cpu@700 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a78";
+			reg = <0x700>;
+			enable-method = "psci";
+			clock-frequency = <2600000000>;
+			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&cpu_off_b &cluster_off_b>;
+			next-level-cache = <&l2_1>;
+			#cooling-cells = <2>;
+		};
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+
+				core1 {
+					cpu = <&cpu1>;
+				};
+
+				core2 {
+					cpu = <&cpu2>;
+				};
+
+				core3 {
+					cpu = <&cpu3>;
+				};
+
+				core4 {
+					cpu = <&cpu4>;
+				};
+
+				core5 {
+					cpu = <&cpu5>;
+				};
+			};
+
+			cluster1 {

This is wrong. This SoC uses ARM DynamIQ and combines both the big and LITTLE
CPUs in *one* single cluster.
Please fix.

+				core0 {
+					cpu = <&cpu6>;
+				};
+
+				core1 {
+					cpu = <&cpu7>;
+				};
+			};
+		};
+

..snip..


+
+		pwrap: pwrap@10024000 {
+			compatible = "mediatek,mt8195-pwrap", "syscon";

Please:

compatible = "mediatek,mt8188-pwrap", "mediatek,mt8195-pwrap", "syscon";

+			reg = <0 0x10024000 0 0x1000>;
+			reg-names = "pwrap";
+			interrupts = <GIC_SPI 243 IRQ_TYPE_LEVEL_HIGH 0>;
+			clocks = <&infracfg_ao CLK_INFRA_AO_PMIC_AP>,
+				 <&infracfg_ao CLK_INFRA_AO_PMIC_TMR>;
+			clock-names = "spi", "wrap";
+		};
+

..snip..

+		uart0: serial@11001100 {
+			compatible = "mediatek,mt8188-uart",
+				     "mediatek,mt6577-uart";

Those compatible strings fit in one line. 85 columns is ok.

+			reg = <0 0x11001100 0 0x100>;
+			interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH 0>;
+			clocks = <&clk26m>, <&infracfg_ao CLK_INFRA_AO_UART0>;
+			clock-names = "baud", "bus";
+			status = "disabled";
+		};
+

..snip..

+
+		auxadc: adc@11002000 {
+			compatible = "mediatek,mt8188-auxadc",
+				     "mediatek,mt8173-auxadc";

89 columns is ok, fits in one line.

+			reg = <0 0x11002000 0 0x1000>;
+			clocks = <&infracfg_ao CLK_INFRA_AO_AUXADC>;
+			clock-names = "main";
+			#io-channel-cells = <1>;
+			status = "disabled";
+		};
+
+		pericfg_ao: syscon@11003000 {
+			compatible = "mediatek,mt8188-pericfg-ao", "syscon";
+			reg = <0 0x11003000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		spi0: spi@1100a000 {
+			compatible = "mediatek,mt8188-spi-ipm",
+				     "mediatek,spi-ipm";

Fits in one line.

+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0 0x1100a000 0 0x1000>;
+			interrupts = <GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH 0>;
+			clocks = <&topckgen CLK_TOP_UNIVPLL_D6_D2>,
+				 <&topckgen CLK_TOP_SPI>,
+				 <&infracfg_ao CLK_INFRA_AO_SPI0>;
+			clock-names = "parent-clk", "sel-clk", "spi-clk";
+			status = "disabled";
+		};
+

..snip..

+
+		xhci1: usb@11200000 {
+			compatible = "mediatek,mt8188-xhci",
+				     "mediatek,mtk-xhci";

Fits in one line again.

+			reg = <0 0x11200000 0 0x1000>,
+			      <0 0x11203e00 0 0x0100>;
+			reg-names = "mac", "ippc";
+			interrupts = <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH 0>;
+			phys = <&u2port1 PHY_TYPE_USB2>,
+			       <&u3port1 PHY_TYPE_USB3>;
+			assigned-clocks = <&topckgen CLK_TOP_USB_TOP>,
+					  <&topckgen CLK_TOP_SSUSB_XHCI>;
+			assigned-clock-parents = <&topckgen CLK_TOP_UNIVPLL_D5_D4>,
+						 <&topckgen CLK_TOP_UNIVPLL_D5_D4>;
+			clocks = <&pericfg_ao CLK_PERI_AO_SSUSB_BUS>,
+				 <&topckgen CLK_TOP_SSUSB_TOP_REF>,
+				 <&pericfg_ao CLK_PERI_AO_SSUSB_XHCI>;
+			clock-names = "sys_ck", "ref_ck", "mcu_ck";
+			mediatek,syscon-wakeup = <&pericfg 0x468 2>;
+			wakeup-source;
+			status = "disabled";
+		};
+
+		mmc0: mmc@11230000 {
+			compatible = "mediatek,mt8188-mmc",
+				     "mediatek,mt8183-mmc";

same here.

+			reg = <0 0x11230000 0 0x10000>,
+			      <0 0x11f50000 0 0x1000>;
+			interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH 0>;
+			clocks = <&topckgen CLK_TOP_MSDC50_0>,
+				 <&infracfg_ao CLK_INFRA_AO_MSDC0>,
+				 <&infracfg_ao CLK_INFRA_AO_MSDC0_SRC>,
+				 <&infracfg_ao CLK_INFRA_AO_RG_AES_MSDCFDE_CK_0P>;
+			clock-names = "source", "hclk", "source_cg", "crypto_clk";
+			status = "disabled";
+		};
+

..snip..

+
+		xhci2: usb@112a0000 {
+			compatible = "mediatek,mt8188-xhci",
+				     "mediatek,mtk-xhci";

and here, and somewhere else as well.

Regards,
Angelo





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