This adds the basic pin control muliplexing settings for the
Gemini SoC: parallel (NOR) flash, SATA, optional IDE, PCI and
UART.
We also select the right GPIO groups on all applicable systems
so that GPIO keys/LEDs work smoothly.
We can then build upon this for more complex systems.
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
arch/arm/boot/dts/gemini-dlink-dir-685.dts | 55 ++++++++++++++
arch/arm/boot/dts/gemini-nas4220b.dts | 24 ++++++
arch/arm/boot/dts/gemini-rut1xx.dts | 39 ++++++++++
arch/arm/boot/dts/gemini-sq201.dts | 36 ++++++++-
arch/arm/boot/dts/gemini-wbd111.dts | 26 +++++++
arch/arm/boot/dts/gemini-wbd222.dts | 26 +++++++
arch/arm/boot/dts/gemini.dtsi | 117 +++++++++++++++++++++++++++++
7 files changed, 322 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/gemini-dlink-dir-685.dts b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
index f59dada28f6a..094a29624b8d 100644
--- a/arch/arm/boot/dts/gemini-dlink-dir-685.dts
+++ b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_ESC>;
label = "reset";
+ /* Collides with LPC_LAD[0], UART DCD, SSP 97RST */
gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
};
button@13 {
@@ -40,6 +41,7 @@
wakeup-source;
linux,code = <KEY_EJECTCD>;
label = "unmount";
+ /* Collides with LPC LFRAME, UART RTS, SSP TXD */
gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
};
};
@@ -48,6 +50,7 @@
compatible = "gpio-leds";
led@7 {
label = "dir685:blue:WPS";
+ /* Collides with ICE */
gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
default-state = "on";
linux,default-trigger = "heartbeat";
@@ -60,11 +63,13 @@
*/
led@11 {
label = "dir685:blue:HD";
+ /* Collides with LPC_SERIRQ, UART DTR, SSP FSC pins */
gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@12 {
label = "dir685:orange:HD";
+ /* Collides with LPC_LAD[2], UART DSR, SSP ECLK pins */
gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
@@ -80,6 +85,7 @@
*/
gpio-fan {
compatible = "gpio-fan";
+ /* Collides with IDE */
gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
gpio-fan,speed-map = <0 0>, <10000 1>;
#cooling-cells = <2>;
@@ -91,6 +97,7 @@
*/
gpio-i2c {
compatible = "i2c-gpio";
+ /* Collides with ICE */
gpios = <&gpio0 5 0>, /* SDA */
<&gpio0 6 0>; /* SCL */
#address-cells = <1>;
@@ -100,6 +107,7 @@
compatible = "dlink,dir685-touchkeys";
reg = <0x26>;
interrupt-parent = <&gpio0>;
+ /* Collides with NAND flash */
interrupts = <17 IRQ_TYPE_EDGE_FALLING>;
};
};
@@ -155,12 +163,59 @@
};
};
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0bgrp cover line 5, 6 used by TK I2C
+ * gpio0bgrp cover line 7 used by WPS LED
+ * gpio0cgrp cover line 8, 13 used by keys
+ * and 11, 12 used by the HD LEDs
+ * gpio0egrp cover line 16 used by VDISP
+ * gpio0fgrp cover line 17 used by TK IRQ
+ * gpio0ggrp cover line 20 used by panel CS
+ * gpio0hgrp cover line 21,22 used by RTL8366RB
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0bgrp",
+ "gpio0cgrp",
+ "gpio0egrp",
+ "gpio0fgrp",
+ "gpio0ggrp",
+ "gpio0hgrp";
+ };
+ };
+ /*
+ * gpio1bgrp cover line 5,8,7 used by panel SPI
+ * also line 6 used by the fan
+ *
+ */
+ gpio1_default_pins: pinctrl-gpio1 {
+ mux {
+ function = "gpio1";
+ groups = "gpio1bgrp";
+ };
+ };
+ };
+ };
+
sata: sata@46000000 {
cortina,gemini-ata-muxmode = <0>;
cortina,gemini-enable-sata-bridge;
status = "okay";
};
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
+
+ gpio1: gpio@4e000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio1_default_pins>;
+ };
+
pci@50000000 {
status = "okay";
interrupt-map-mask = <0xf800 0 0 7>;
diff --git a/arch/arm/boot/dts/gemini-nas4220b.dts b/arch/arm/boot/dts/gemini-nas4220b.dts
index 55f6a4f1f801..b4fc58c8cf8d 100644
--- a/arch/arm/boot/dts/gemini-nas4220b.dts
+++ b/arch/arm/boot/dts/gemini-nas4220b.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "Backup button";
+ /* Conflict with TVC */
gpios = <&gpio1 29 GPIO_ACTIVE_LOW>;
};
button@31 {
@@ -40,6 +41,7 @@
wakeup-source;
linux,code = <KEY_RESTART>;
label = "Softreset button";
+ /* Conflict with TVC */
gpios = <&gpio1 31 GPIO_ACTIVE_LOW>;
};
};
@@ -48,11 +50,13 @@
compatible = "gpio-leds";
led@28 {
label = "nas4220b:orange:hdd";
+ /* Conflict with TVC */
gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
led@30 {
label = "nas4220b:green:os";
+ /* Conflict with TVC */
gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
default-state = "on";
linux,default-trigger = "heartbeat";
@@ -99,12 +103,32 @@
};
};
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio1dgrp cover line 28-31 otherwise used
+ * by TVC.
+ */
+ gpio1_default_pins: pinctrl-gpio1 {
+ mux {
+ function = "gpio1";
+ groups = "gpio1dgrp";
+ };
+ };
+ };
+ };
+
sata: sata@46000000 {
cortina,gemini-ata-muxmode = <0>;
cortina,gemini-enable-sata-bridge;
status = "okay";
};
+ gpio1: gpio@4e000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio1_default_pins>;
+ };
+
ata@63000000 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/gemini-rut1xx.dts b/arch/arm/boot/dts/gemini-rut1xx.dts
index 7b920bfbda32..3613b264f45f 100644
--- a/arch/arm/boot/dts/gemini-rut1xx.dts
+++ b/arch/arm/boot/dts/gemini-rut1xx.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "Reset to defaults";
+ /* Conflict with TVC */
gpios = <&gpio1 28 GPIO_ACTIVE_LOW>;
};
};
@@ -42,12 +43,14 @@
led@7 {
/* FIXME: add the LED color */
label = "rut1xx::gsm";
+ /* Conflict with ICE */
gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
led@31 {
/* FIXME: add the LED color */
label = "rut1xx::power";
+ /* Conflict with NAND CE0 */
gpios = <&gpio0 17 GPIO_ACTIVE_HIGH>;
default-state = "off";
linux,default-trigger = "heartbeat";
@@ -61,5 +64,41 @@
reg = <0x30000000 0x00800000>;
/* TODO: add flash partitions here */
};
+
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0bgrp cover line 7 used by GSM LED
+ * gpio0fgrp cover line 17 used by power LED
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0bgrp",
+ "gpio0fgrp";
+ };
+ };
+ /*
+ * gpio1dgrp cover line 28-31 otherwise used
+ * by TVC.
+ */
+ gpio1_default_pins: pinctrl-gpio1 {
+ mux {
+ function = "gpio1";
+ groups = "gpio1dgrp";
+ };
+ };
+ };
+ };
+
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
+
+ gpio1: gpio@4e000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio1_default_pins>;
+ };
};
};
diff --git a/arch/arm/boot/dts/gemini-sq201.dts b/arch/arm/boot/dts/gemini-sq201.dts
index 4d200f0bcd45..7cfa9caf47d4 100644
--- a/arch/arm/boot/dts/gemini-sq201.dts
+++ b/arch/arm/boot/dts/gemini-sq201.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "factory reset";
+ /* Conflict with NAND flash */
gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
};
};
@@ -41,12 +42,14 @@
compatible = "gpio-leds";
led@20 {
label = "sq201:green:info";
+ /* Conflict with parallel flash */
gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
default-state = "on";
linux,default-trigger = "heartbeat";
};
led@31 {
label = "sq201:green:usb";
+ /* Conflict with parallel and NAND flash */
gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
default-state = "off";
linux,default-trigger = "usb-host";
@@ -55,7 +58,15 @@
soc {
flash@30000000 {
- status = "okay";
+ /*
+ * Flash access can be enabled, with the side effect
+ * of disabling access to GPIO LED on GPIO0[20] which
+ * reuse one of the parallel flash chip select lines.
+ * Also the default firmware on the machine has the
+ * problem that since it uses the flash, the two LEDS
+ * on the right become numb.
+ */
+ /* status = "okay"; */
/* 16MB of flash */
reg = <0x30000000 0x01000000>;
@@ -93,12 +104,35 @@
};
};
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0fgrp cover line 18 used by reset button
+ * gpio0ggrp cover line 20 used by info LED
+ * gpio0kgrp cover line 31 used by USB LED
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0fgrp",
+ "gpio0ggrp",
+ "gpio0kgrp";
+ };
+ };
+ };
+ };
+
sata: sata@46000000 {
cortina,gemini-ata-muxmode = <0>;
cortina,gemini-enable-sata-bridge;
status = "okay";
};
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
+
pci@50000000 {
status = "okay";
interrupt-map-mask = <0xf800 0 0 7>;
diff --git a/arch/arm/boot/dts/gemini-wbd111.dts b/arch/arm/boot/dts/gemini-wbd111.dts
index 63b756e3bf5a..38a49e750478 100644
--- a/arch/arm/boot/dts/gemini-wbd111.dts
+++ b/arch/arm/boot/dts/gemini-wbd111.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "reset";
+ /* Conflict with ICE */
gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
};
};
@@ -42,21 +43,25 @@
led@1 {
label = "wbd111:red:L3";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@2 {
label = "wbd111:green:L4";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@3 {
label = "wbd111:red:L4";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@5 {
label = "wbd111:green:L3";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
default-state = "on";
linux,default-trigger = "heartbeat";
@@ -98,5 +103,26 @@
read-only;
};
};
+
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0agrp cover line 0-4
+ * gpio0bgrp cover line 5
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0agrp",
+ "gpio0bgrp";
+ };
+ };
+ };
+ };
+
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
};
};
diff --git a/arch/arm/boot/dts/gemini-wbd222.dts b/arch/arm/boot/dts/gemini-wbd222.dts
index 9747f5a47807..f77e34e0df0b 100644
--- a/arch/arm/boot/dts/gemini-wbd222.dts
+++ b/arch/arm/boot/dts/gemini-wbd222.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "reset";
+ /* Conflict with ICE */
gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
};
};
@@ -42,21 +43,25 @@
led@1 {
label = "wbd111:red:L3";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@2 {
label = "wbd111:green:L4";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@3 {
label = "wbd111:red:L4";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@5 {
label = "wbd111:green:L3";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
default-state = "on";
linux,default-trigger = "heartbeat";
@@ -98,5 +103,26 @@
read-only;
};
};
+
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0agrp cover line 0-4
+ * gpio0bgrp cover line 5
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0agrp",
+ "gpio0bgrp";
+ };
+ };
+ };
+ };
+
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
};
};
diff --git a/arch/arm/boot/dts/gemini.dtsi b/arch/arm/boot/dts/gemini.dtsi
index 49cce9e9d51f..c68e8d430234 100644
--- a/arch/arm/boot/dts/gemini.dtsi
+++ b/arch/arm/boot/dts/gemini.dtsi
@@ -20,6 +20,8 @@
flash@30000000 {
compatible = "cortina,gemini-flash", "cfi-flash";
syscon = <&syscon>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pflash_default_pins>;
bank-width = <2>;
#address-cells = <1>;
#size-cells = <1>;
@@ -41,6 +43,105 @@
/* RESET_GLOBAL | RESET_CPU1 */
mask = <0xC0000000>;
};
+
+ pinctrl {
+ compatible = "cortina,gemini-pinctrl";
+ regmap = <&syscon>;
+ /* Hog the DRAM pins */
+ pinctrl-names = "default";
+ pinctrl-0 = <&dram_default_pins>, <&system_default_pins>,
+ <&vcontrol_default_pins>;
+
+ dram_default_pins: pinctrl-dram {
+ mux {
+ function = "dram";
+ groups = "dramgrp";
+ };
+ };
+ rtc_default_pins: pinctrl-rtc {
+ mux {
+ function = "rtc";
+ groups = "rtcgrp";
+ };
+ };
+ power_default_pins: pinctrl-power {
+ mux {
+ function = "power";
+ groups = "powergrp";
+ };
+ };
+ cir_default_pins: pinctrl-cir {
+ mux {
+ function = "cir";
+ groups = "cirgrp";
+ };
+ };
+ system_default_pins: pinctrl-system {
+ mux {
+ function = "system";
+ groups = "systemgrp";
+ };
+ };
+ vcontrol_default_pins: pinctrl-vcontrol {
+ mux {
+ function = "vcontrol";
+ groups = "vcontrolgrp";
+ };
+ };
+ ice_default_pins: pinctrl-ice {
+ mux {
+ function = "ice";
+ groups = "icegrp";
+ };
+ };
+ uart_default_pins: pinctrl-uart {
+ mux {
+ function = "uart";
+ groups = "uartrxtxgrp";
+ };
+ };
+ pflash_default_pins: pinctrl-pflash {
+ mux {
+ function = "pflash";
+ groups = "pflashgrp";
+ };
+ };
+ usb_default_pins: pinctrl-usb {
+ mux {
+ function = "usb";
+ groups = "usbgrp";
+ };
+ };
+ gmii_default_pins: pinctrl-gmii {
+ mux {
+ function = "gmii";
+ groups = "gmiigrp";
+ };
+ };
+ pci_default_pins: pinctrl-pci {
+ mux {
+ function = "pci";
+ groups = "pcigrp";
+ };
+ };
+ sata_default_pins: pinctrl-sata {
+ mux {
+ function = "sata";
+ groups = "satagrp";
+ };
+ };
+ /* Activate both groups of pins for this state */
+ sata_and_ide_pins: pinctrl-sata-ide {
+ mux0 {
+ function = "sata";
+ groups = "satagrp";
+ };
+ mux1 {
+ function = "ide";
+ groups = "idegrp";
+ };
+ };
+ };
};
watchdog@41000000 {
@@ -57,6 +158,8 @@
resets = <&syscon GEMINI_RESET_UART>;
clocks = <&syscon GEMINI_CLK_UART>;
interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart_default_pins>;
reg-shift = <2>;
};
@@ -81,6 +184,8 @@
resets = <&syscon GEMINI_RESET_RTC>;
clocks = <&syscon GEMINI_CLK_APB>, <&syscon GEMINI_CLK_RTC>;
clock-names = "PCLK", "EXTCLK";
+ pinctrl-names = "default";
+ pinctrl-0 = <&rtc_default_pins>;
};
sata: sata@46000000 {
@@ -92,6 +197,14 @@
clocks = <&syscon GEMINI_CLK_GATE_SATA0>,
<&syscon GEMINI_CLK_GATE_SATA1>;
clock-names = "SATA0_PCLK", "SATA1_PCLK";
+ /*
+ * This defines the special "ide" state that needs
+ * to be explicitly enabled to enable the IDE pins,
+ * as these pins are normally used for other things.
+ */
+ pinctrl-names = "default", "ide";
+ pinctrl-0 = <&sata_default_pins>;
+ pinctrl-1 = <&sata_and_ide_pins>;
syscon = <&syscon>;
status = "disabled";
};
@@ -108,6 +221,8 @@
compatible = "cortina,gemini-power-controller";
reg = <0x4b000000 0x100>;
interrupts = <26 IRQ_TYPE_EDGE_RISING>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&power_default_pins>;
};
gpio0: gpio@4d000000 {
@@ -156,6 +271,8 @@
resets = <&syscon GEMINI_RESET_PCI>;
clocks = <&syscon GEMINI_CLK_GATE_PCI>, <&syscon GEMINI_CLK_PCI>;
clock-names = "PCLK", "PCICLK";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pci_default_pins>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
--
2.9.4
--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH 5/5] ARM: dts: gemini: add pin control set-up for the SoC
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
- Subject: [PATCH 5/5] ARM: dts: gemini: add pin control set-up for the SoC
- From: Linus Walleij <linus.walleij@xxxxxxxxxx>
- Date: Sat, 15 Jul 2017 19:50:56 +0200
- In-reply-to: <20170715175056.13040-1-linus.walleij@linaro.org>
- References: <20170715175056.13040-1-linus.walleij@linaro.org>
- Follow-Ups:
- Re: [PATCH 5/5] ARM: dts: gemini: add pin control set-up for the SoC
- From: Hans Ulli Kroll
- Re: [PATCH 5/5] ARM: dts: gemini: add pin control set-up for the SoC
- References:
- [PATCH 1/5] pinctrl: Add DT bindings for Cortina Gemini
- From: Linus Walleij
- [PATCH 1/5] pinctrl: Add DT bindings for Cortina Gemini
- Prev by Date: [PATCH 4/5] ARM: gemini: select pin controller
- Next by Date: [PATCH] pinctrl: zte: fix 'functions' allocation in zx_pinctrl_build_state()
- Previous by thread: [PATCH 4/5] ARM: gemini: select pin controller
- Next by thread: Re: [PATCH 5/5] ARM: dts: gemini: add pin control set-up for the SoC
- Index(es):
 |