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Date: Mon, 22 Aug 2016 22:49:30 +0800
From: ayaka <ayaka@...lik.info>
To: chanwoo@...nel.org
Cc: Marek Szyprowski <m.szyprowski@...sung.com>,
devicetree <devicetree@...r.kernel.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>, linux@...linux.org.uk,
Kukjin Kim <kgene@...nel.org>, krzk@...nel.org,
linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] ARM: dts: Add TOPEET itop core board SCP package
version
On 08/22/2016 10:45 PM, Chanwoo Choi wrote:
> Hi,
>
> 2016-08-22 17:28 GMT+09:00 Ayaka <ayaka@...lik.info>:
>> Thank you
>> 從我的 iPad 傳送
>>
>>> Marek Szyprowski <m.szyprowski@...sung.com> 於 2016年8月22日 下午2:50 寫道：
>>>
>>> Dear Randy,
>>>
>>>
>>>> On 2016-08-21 22:04, Randy Li wrote:
>>>> The TOPEET itop is a samsung exnynos 4412 core board, which have
>>>> two package versions. This patch add the support for SCP version.
>>>>
>>>> Currently supported are USB3503A HSIC, USB OTG, eMMC, RTC and PMIC.
>>>> The future features are in the based board. Also MFC and watchdog
>>>> have been enabled.
>>>>
>>>> Signed-off-by: Randy Li <ayaka@...lik.info>
>>>> ---
>>>> arch/arm/boot/dts/exynos4412-itop-scp-core.dtsi | 434 ++++++++++++++++++++++++
>>>> 1 file changed, 434 insertions(+)
>>>> create mode 100644 arch/arm/boot/dts/exynos4412-itop-scp-core.dtsi
>>>>
>>>> diff --git a/arch/arm/boot/dts/exynos4412-itop-scp-core.dtsi b/arch/arm/boot/dts/exynos4412-itop-scp-core.dtsi
>>>> new file mode 100644
>>>> index 0000000..0860ee6
>>>> --- /dev/null
>>>> +++ b/arch/arm/boot/dts/exynos4412-itop-scp-core.dtsi
>>>> @@ -0,0 +1,434 @@
>>>> +/*
>>>> + * TOPEET's Exynos4412 based itop board device tree source
>>>> + *
>>>> + * Copyright (c) 2016 SUMOMO Computer Association
>>>> + * https://www.sumomo.mobi
>>>> + * Randy Li <ayaka@...lik.info>
>>>> + *
>>>> + * Device tree source file for TOPEET iTop Exynos 4412 SCP package core
>>>> + * board which is based on Samsung's Exynos4412 SoC.
>>>> + *
>>>> + * This program is free software; you can redistribute it and/or modify
>>>> + * it under the terms of the GNU General Public License version 2 as
>>>> + * published by the Free Software Foundation.
>>>> +*/
>>>> +
>>>> +#include "exynos4412.dtsi"
>>>> +#include <dt-bindings/gpio/gpio.h>
>>>> +#include <dt-bindings/input/input.h>
>>>> +
>>>> +/ {
>>>> + memory {
>>>> + reg = <0x40000000 0x40000000>;
>>>> + };
>>>> +
>>>> + firmware@...3F000 {
>>>> + compatible = "samsung,secure-firmware";
>>>> + reg = <0x0203F000 0x1000>;
>>>> + };
>>>> +
>>>> + display-timings {
>>>> + native-mode = <&timing0>;
>>>> + timing0: timing {
>>>> + clock-frequency = <47500000>;
>>>> + hactive = <1024>;
>>>> + vactive = <600>;
>>>> + hfront-porch = <64>;
>>>> + hback-porch = <16>;
>>>> + hsync-len = <48>;
>>>> + vback-porch = <64>;
>>>> + vfront-porch = <16>;
>>>> + vsync-len = <3>;
>>>> + };
>>>> + };
>>>> +
>>>> + fixed-rate-clocks {
>>>> + xxti {
>>>> + compatible = "samsung,clock-xxti";
>>>> + clock-frequency = <0>;
>>>> + };
>>>> +
>>>> + xusbxti {
>>>> + compatible = "samsung,clock-xusbxti";
>>>> + clock-frequency = <24000000>;
>>>> + };
>>>> + };
>>>> +
>>>> + usb-hub {
>>>> + compatible = "smsc,usb3503a";
>>>> + reset-gpios = <&gpm2 4 GPIO_ACTIVE_LOW>;
>>>> + connect-gpios = <&gpm3 3 GPIO_ACTIVE_HIGH>;
>>>> + intn-gpios = <&gpx2 3 GPIO_ACTIVE_HIGH>;
>>>> + pinctrl-names = "default";
>>>> + pinctrl-0 = <&hsic_reset>;
>>>> + };
>>>> +};
>>>> +
>>>> +&cpu0 {
>>>> + cpu0-supply = <&buck2_reg>;
>>>> +};
>>>> +
>>>> +&i2c_1 {
>>>> + #address-cells = <1>;
>>>> + #size-cells = <0>;
>>>> + samsung,i2c-sda-delay = <100>;
>>>> + samsung,i2c-max-bus-freq = <400000>;
>>>> + pinctrl-0 = <&i2c1_bus>;
>>>> + pinctrl-names = "default";
>>>> + status = "okay";
>>>> +
>>>> + s5m8767_pmic@66 {
>>>> + compatible = "samsung,s5m8767-pmic";
>>>> + reg = <0x66>;
>>>> +
>>>> + s5m8767,pmic-buck-default-dvs-idx = <3>;
>>>> +
>>>> + s5m8767,pmic-buck-dvs-gpios = <&gpb 5 GPIO_ACTIVE_HIGH>,
>>>> + <&gpb 6 GPIO_ACTIVE_HIGH>,
>>>> + <&gpb 7 GPIO_ACTIVE_HIGH>;
>>>> +
>>>> + s5m8767,pmic-buck-ds-gpios = <&gpm3 5 GPIO_ACTIVE_HIGH>,
>>>> + <&gpm3 6 GPIO_ACTIVE_HIGH>,
>>>> + <&gpm3 7 GPIO_ACTIVE_HIGH>;
>>>> +
>>>> + /* VDD_ARM */
>>>> + s5m8767,pmic-buck2-dvs-voltage = <1356250>, <1300000>,
>>>> + <1243750>, <1118750>,
>>>> + <1068750>, <1012500>,
>>>> + <956250>, <900000>;
>>>> + /* VDD_INT */
>>>> + s5m8767,pmic-buck3-dvs-voltage = <1000000>, <1000000>,
>>>> + <925000>, <925000>,
>>>> + <887500>, <887500>,
>>>> + <850000>, <850000>;
>>>> + /* VDD_G3D */
>>>> + s5m8767,pmic-buck4-dvs-voltage = <1081250>, <1081250>,
>>>> + <1025000>, <950000>,
>>>> + <918750>, <900000>,
>>>> + <875000>, <831250>;
>>>> +
>>>> + regulators {
>>>> + ldo1_reg: LDO1 {
>>>> + regulator-name = "VDD_ALIVE";
>>>> + regulator-min-microvolt = <1100000>;
>>>> + regulator-max-microvolt = <1100000>;
>>>> + regulator-always-on;
>>>> + regulator-boot-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + /* SCP uses 1.5v, POP uses 1.2v */
>>>> + ldo2_reg: LDO2 {
>>>> + regulator-name = "VDDQ_M12";
>>>> + regulator-min-microvolt = <1500000>;
>>>> + regulator-max-microvolt = <1500000>;
>>>> + regulator-always-on;
>>>> + regulator-boot-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo3_reg: LDO3 {
>>>> + regulator-name = "VDDIOAP_18";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo4_reg: LDO4 {
>>>> + regulator-name = "VDDQ_PRE";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo6_reg: LDO6 {
>>>> + regulator-name = "VDD10_MPLL";
>>>> + regulator-min-microvolt = <1000000>;
>>>> + regulator-max-microvolt = <1000000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo7_reg: LDO7 {
>>>> + regulator-name = "VDD10_XPLL";
>>>> + regulator-min-microvolt = <1000000>;
>>>> + regulator-max-microvolt = <1000000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo8_reg: LDO8 {
>>>> + regulator-name = "VDD10_MIPI";
>>>> + regulator-min-microvolt = <1000000>;
>>>> + regulator-max-microvolt = <1000000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo9_reg: LDO9 {
>>>> + regulator-name = "VDD33_LCD";
>>>> + regulator-min-microvolt = <3300000>;
>>>> + regulator-max-microvolt = <3300000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo10_reg: LDO10 {
>>>> + regulator-name = "VDD18_MIPI";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo11_reg: LDO11 {
>>>> + regulator-name = "VDD18_ABB1";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo12_reg: LDO12 {
>>>> + regulator-name = "VDD33_UOTG";
>>>> + regulator-min-microvolt = <3300000>;
>>>> + regulator-max-microvolt = <3300000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo13_reg: LDO13 {
>>>> + regulator-name = "VDDIOPERI_18";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo14_reg: LDO14 {
>>>> + regulator-name = "VDD18_ABB02";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo15_reg: LDO15 {
>>>> + regulator-name = "VDD10_USH";
>>>> + regulator-min-microvolt = <1000000>;
>>>> + regulator-max-microvolt = <1000000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo16_reg: LDO16 {
>>>> + regulator-name = "VDD18_HSIC";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo17_reg: LDO17 {
>>>> + regulator-name = "VDDIOAP_MMC012_28";
>>>> + regulator-min-microvolt = <2800000>;
>>>> + regulator-max-microvolt = <2800000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + /* Used by HSIC */
>>>> + ldo18_reg: LDO18 {
>>>> + regulator-name = "VDDIOPERI_28";
>>>> + regulator-min-microvolt = <3300000>;
>>>> + regulator-max-microvolt = <3300000>;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo20_reg: LDO20 {
>>>> + regulator-name = "VDD28_CAM";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <2800000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo21_reg: LDO21 {
>>>> + regulator-name = "VDD28_AF";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <2800000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo22_reg: LDO22 {
>>>> + regulator-name = "VDDA28_2M";
>>>> + regulator-min-microvolt = <2800000>;
>>>> + regulator-max-microvolt = <2800000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo23_reg: LDO23 {
>>>> + regulator-name = "VDD28_TF";
>>>> + regulator-min-microvolt = <2800000>;
>>>> + regulator-max-microvolt = <2800000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo24_reg: LDO24 {
>>>> + regulator-name = "VDD33_A31";
>>>> + regulator-min-microvolt = <3300000>;
>>>> + regulator-max-microvolt = <3300000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo25_reg: LDO25 {
>>>> + regulator-name = "VDD18_CAM";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo26_reg: LDO26 {
>>>> + regulator-name = "VDD18_A31";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo27_reg: LDO27 {
>>>> + regulator-name = "GPS_1V8";
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + ldo28_reg: LDO28 {
>>>> + regulator-name = "DVDD12";
>>>> + regulator-min-microvolt = <1200000>;
>>>> + regulator-max-microvolt = <1200000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + buck1_reg: BUCK1 {
>>>> + regulator-name = "vdd_mif";
>>>> + regulator-min-microvolt = <850000>;
>>>> + regulator-max-microvolt = <1100000>;
>>>> + regulator-always-on;
>>>> + regulator-boot-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + buck2_reg: BUCK2 {
>>>> + regulator-name = "vdd_arm";
>>>> + regulator-min-microvolt = <850000>;
>>>> + regulator-max-microvolt = <1456250>;
>>>> + regulator-always-on;
>>>> + regulator-boot-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + buck3_reg: BUCK3 {
>>>> + regulator-name = "vdd_int";
>>>> + regulator-min-microvolt = <875000>;
>>>> + regulator-max-microvolt = <1200000>;
>>>> + regulator-always-on;
>>>> + regulator-boot-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + buck4_reg: BUCK4 {
>>>> + regulator-name = "vdd_g3d";
>>>> + regulator-min-microvolt = <750000>;
>>>> + regulator-max-microvolt = <1500000>;
>>>> + regulator-always-on;
>>>> + regulator-boot-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + buck5_reg: BUCK5 {
>>>> + regulator-name = "vdd_m12";
>>>> + regulator-min-microvolt = <750000>;
>>>> + regulator-max-microvolt = <1500000>;
>>>> + regulator-always-on;
>>>> + regulator-boot-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + buck6_reg: BUCK6 {
>>>> + regulator-name = "vdd12_5m";
>>>> + regulator-min-microvolt = <750000>;
>>>> + regulator-max-microvolt = <1500000>;
>>>> + regulator-always-on;
>>>> + regulator-boot-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + buck7_reg: BUCK7 {
>>>> + regulator-name = "pvdd_buck7";
>>>> + regulator-min-microvolt = <750000>;
>>>> + regulator-max-microvolt = <2000000>;
>>>> + regulator-boot-on;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + buck8_reg: BUCK8 {
>>>> + regulator-name = "pvdd_buck8";
>>>> + regulator-min-microvolt = <750000>;
>>>> + regulator-max-microvolt = <1500000>;
>>>> + regulator-boot-on;
>>>> + regulator-always-on;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> +
>>>> + buck9_reg: BUCK9 {
>>>> + regulator-name = "vddf28_emmc";
>>>> + regulator-min-microvolt = <750000>;
>>>> + regulator-max-microvolt = <3000000>;
>>>> + op_mode = <1>; /* Normal Mode */
>>>> + };
>>>> + };
>>>> + };
>>>> +};
>>>> +
>>>> +&pinctrl_1 {
>>>> + hsic_reset: hsic-reset {
>>>> + samsung,pins = "gpm2-4";
>>>> + samsung,pin-function = <1>;
>>>> + samsung,pin-pud = <0>;
>>>> + samsung,pin-drv = <3>;
>>>> + };
>>>> +};
>>>> +
>>>> +&mfc {
>>>> + samsung,mfc-r = <0x43000000 0x800000>;
>>>> + samsung,mfc-l = <0x51000000 0x800000>;
>>>> + status = "okay";
>>>> +};
>>> Since v4.8-rc1 MFC driver has been converted to generic reserved memory bindings,
>>> so samsung,mfc-* properties are obsoleted and no longer used. If you want to use
>>> MFC driver with reserved memory, please just add following line to your dts:
>>> #include "exynos-mfc-reserved-memory.dtsi"
>>>
>>> Please refer to dts of other boards for more examples.
>> I see, I would also enabled the bus_mfc and mfc entry.
>> I notice the new introduce Exynos bus. I need some time to add support it. I will send a new version later time(maybe you have to wait this weekend, sorry about that).
> What is meaning of "new introduce Exynos bus"?
Generic Exynos Bus frequency device
> Could you explain it to me?
It seems not very hard, I have sent new dts. But I am not sure I
understand it. For example I don't that C2C, PERIR and FSYS used for.
>
> [snip]
>
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