* [PATCH 2/3] ARM: dts: meson8b: ec100: improve the description of the regulators
2019-01-18 23:43 [PATCH 0/3] ARM: dts: meson8b: ec100: improvements Martin Blumenstingl
2019-01-18 23:43 ` [PATCH 1/3] ARM: dts: meson8b: ec100: enable the Ethernet PHY interrupt Martin Blumenstingl
@ 2019-01-18 23:43 ` Martin Blumenstingl
2019-01-18 23:43 ` [PATCH 3/3] ARM: dts: meson8b: ec100: add the GPIO line names Martin Blumenstingl
2019-02-07 3:43 ` [PATCH 0/3] ARM: dts: meson8b: ec100: improvements Kevin Hilman
3 siblings, 0 replies; 5+ messages in thread
From: Martin Blumenstingl @ 2019-01-18 23:43 UTC (permalink / raw)
To: linux-amlogic, khilman; +Cc: Martin Blumenstingl, linux-arm-kernel
USB_VBUS is a controlled by a Silergy SY6288CCAC-GP 2A Power
Distribution Switch. The name of it's enable GPIO signal is USB_PWR_EN.
VCC5V is supplied by the main power input called PWR_5V_STB. The name of
it's enable GPIO signal is 3V3_5V_EN.
VCC3V3, VCC_DDR3_1V5 and VCCK (the CPU power supply) each use a separate
Silergy SY8089AAC-GP 2A step down regulator. They are all supplied by the
board's main 5V. VCC3V3 and VCC_DDR3_1V5 are fixed regulators while the
voltage of VCCK can be changed by changing it's feedback voltage via
PWM_C.
VCC1V8 is an ABLIC S-1339D18-M5001-GP fixed voltage regulator which is
supplied by VCC3V3.
VCC_RTC is a Global Mixed-mode Technology Inc. G918T12U-GP LDO which. It
is supplied by either VCC3V3 (when the board is powered) or the RTC coin
cell battery.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
arch/arm/boot/dts/meson8b-ec100.dts | 68 +++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
diff --git a/arch/arm/boot/dts/meson8b-ec100.dts b/arch/arm/boot/dts/meson8b-ec100.dts
index 1a41d89d1fa5..5ecd787e9265 100644
--- a/arch/arm/boot/dts/meson8b-ec100.dts
+++ b/arch/arm/boot/dts/meson8b-ec100.dts
@@ -88,6 +88,9 @@
};
usb_vbus: regulator-usb-vbus {
+ /*
+ * Silergy SY6288CCAC-GP 2A Power Distribution Switch.
+ */
compatible = "regulator-fixed";
regulator-name = "USB_VBUS";
@@ -95,11 +98,20 @@
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
+ vin-supply = <&vcc_5v>;
+
+ /*
+ * signal name from the schematics: USB_PWR_EN
+ */
gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
vcc_5v: regulator-vcc5v {
+ /*
+ * supplied by the main power input which called PWR_5V_STB
+ * in the schematics
+ */
compatible = "regulator-fixed";
regulator-name = "VCC5V";
@@ -107,6 +119,9 @@
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
+ /*
+ * signal name from the schematics: 3V3_5V_EN
+ */
gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
regulator-boot-on;
@@ -114,12 +129,18 @@
};
vcck: regulator-vcck {
+ /*
+ * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
+ * Synchronous Step Down Regulator.
+ */
compatible = "pwm-regulator";
regulator-name = "VCCK";
regulator-min-microvolt = <860000>;
regulator-max-microvolt = <1140000>;
+ vin-supply = <&vcc_5v>;
+
pwms = <&pwm_cd 0 1148 0>;
pwm-dutycycle-range = <100 0>;
@@ -128,19 +149,66 @@
};
vcc_1v8: regulator-vcc1v8 {
+ /*
+ * ABLIC S-1339D18-M5001-GP
+ */
compatible = "regulator-fixed";
regulator-name = "VCC1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+
+ vin-supply = <&vcc_3v3>;
};
vcc_3v3: regulator-vcc3v3 {
+ /*
+ * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
+ * Synchronous Step Down Regulator. Also called
+ * VDDIO_AO3.3V in the schematics.
+ */
compatible = "regulator-fixed";
regulator-name = "VCC3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
+
+ vin-supply = <&vcc_5v>;
+ };
+
+ vcc_ddr3: regulator-vcc-ddr3 {
+ /*
+ * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
+ * Synchronous Step Down Regulator. Also called
+ * DDR3_1.5V in the schematics.
+ */
+ compatible = "regulator-fixed";
+
+ regulator-name = "VCC_DDR3_1V5";
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+
+ vin-supply = <&vcc_5v>;
+
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vcc_rtc: regulator-vcc-rtc {
+ /*
+ * Global Mixed-mode Technology Inc. G918T12U-GP
+ */
+ compatible = "regulator-fixed";
+
+ regulator-name = "VCC_RTC";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+
+ /*
+ * When the board is powered then the input is VCC3V3,
+ * otherwise power is taken from the coin cell battery.
+ */
+ vin-supply = <&vcc_3v3>;
};
};
--
2.20.1
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^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 3/3] ARM: dts: meson8b: ec100: add the GPIO line names
2019-01-18 23:43 [PATCH 0/3] ARM: dts: meson8b: ec100: improvements Martin Blumenstingl
2019-01-18 23:43 ` [PATCH 1/3] ARM: dts: meson8b: ec100: enable the Ethernet PHY interrupt Martin Blumenstingl
2019-01-18 23:43 ` [PATCH 2/3] ARM: dts: meson8b: ec100: improve the description of the regulators Martin Blumenstingl
@ 2019-01-18 23:43 ` Martin Blumenstingl
2019-02-07 3:43 ` [PATCH 0/3] ARM: dts: meson8b: ec100: improvements Kevin Hilman
3 siblings, 0 replies; 5+ messages in thread
From: Martin Blumenstingl @ 2019-01-18 23:43 UTC (permalink / raw)
To: linux-amlogic, khilman; +Cc: Martin Blumenstingl, linux-arm-kernel
This adds the GPIO line names from the schematics to get them displayed
in the debugfs output of each GPIO controller.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
arch/arm/boot/dts/meson8b-ec100.dts | 50 +++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/arch/arm/boot/dts/meson8b-ec100.dts b/arch/arm/boot/dts/meson8b-ec100.dts
index 5ecd787e9265..b35b1c6b8fdc 100644
--- a/arch/arm/boot/dts/meson8b-ec100.dts
+++ b/arch/arm/boot/dts/meson8b-ec100.dts
@@ -288,6 +288,56 @@
};
};
+&gpio_ao {
+ gpio-line-names = "Linux_TX", "Linux_RX",
+ "SLP_S5_N", "USB2_OC_FLAG#",
+ "HUB_RST", "USB_PWR_EN",
+ "I2S_IN", "SLP_S1_N",
+ "TCK", "TMS", "TDI", "TDO",
+ "HDMI_CEC", "5640_IRQ",
+ "MUTE", "S805_TEST#";
+};
+
+&gpio {
+ gpio-line-names = /* Bank GPIOX */
+ "WIFI_SD_D0", "WIFI_SD_D1", "WIFI_SD_D2",
+ "WIFI_SD_D3", "BTPCM_DOUT", "BTPCM_DIN",
+ "BTPCM_SYNC", "BTPCM_CLK", "WIFI_SD_CLK",
+ "WIFI_SD_CMD", "WIFI_32K", "WIFI_PWREN",
+ "UART_B_TX", "UART_B_RX", "UART_B_CTS_N",
+ "UART_B_RTS_N", "BT_EN", "WIFI_WAKE_HOST",
+ /* Bank GPIOY */
+ "", "", "", "", "", "", "", "", "", "",
+ "", "",
+ /* Bank GPIODV */
+ "VCCK_PWM_C", "I2C_SDA_A", "I2C_SCL_A",
+ "I2C_SDA_B", "I2C_SCL_B", "VDDEE_PWM_D",
+ "VDDEE_PWM 3V3_5V_EN",
+ /* Bank GPIOH */
+ "HDMI_HPD", "HDMI_I2C_SDA", "HDMI_I2C_SCL",
+ "RMII_IRQ", "RMII_RST#", "RMII_TXD1",
+ "RMII_TXD0", "AV_select_1", "AV_select_2",
+ "MCU_Control_S",
+ /* Bank CARD */
+ "SD_D1_B", "SD_D0_B", "SD_CLK_8726MX",
+ "SD_CMD_8726MX", "SD_D3_B", "SD_D2_B",
+ "CARD_EN_DET (CARD_DET)",
+ /* Bank BOOT */
+ "NAND_D0 (EMMC)", "NAND_D1 (EMMC)",
+ "NAND_D2 (EMMC)", "NAND_D3 (EMMC)",
+ "NAND_D4 (EMMC)", "NAND_D5 (EMMC)",
+ "NAND_D6 (EMMC)", "NAND_D7 (EMMC)",
+ "NAND_CS1 (EMMC)", "NAND_CS2 iNAND_RS1 (EMMC)",
+ "NAND_nR/B iNAND_CMD (EMMC)", "NAND_ALE (EMMC)",
+ "NAND_CLE (EMMC)", "nRE_S1 NAND_nRE (EMMC)",
+ "nWE_S1 NAND_nWE (EMMC)", "", "", "SPI_CS",
+ /* Bank DIF */
+ "RMII_RXD1", "RMII_RXD0", "RMII_CRS_DV",
+ "RMII_50M_IN", "GPIODIF_4", "GPIODIF_5",
+ "RMII_TXEN", "CPUETH_25MOUT", "RMII_MDC",
+ "RMII_MDIO";
+};
+
&pwm_cd {
status = "okay";
pinctrl-0 = <&pwm_c1_pins>;
--
2.20.1
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