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

From: AngeloGioacchino Del Regno
Date: Wed Jul 05 2023 - 04:25:49 EST

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In reply to: Jason-ch Chen: "[PATCH 3/3] arm64: dts: Add MediaTek MT8188 dts and evaluation board and Makefile"
Next in thread: Jason-ch Chen (陳建豪): "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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In reply to: Jason-ch Chen: "[PATCH 3/3] arm64: dts: Add MediaTek MT8188 dts and evaluation board and Makefile"
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