[PATCH 0/2] Minimal dts support for LogicPD Torpedo SOM devkit

[PATCH 0/2] Minimal dts support for LogicPD Torpedo SOM devkit

[Tony Lindgren]

Hi all,

This seems to be the last missing omap3 dts file, so far we've only
had minimal board-*.c legacy support for it.

Here's some more info about this board:

http://www.logicpd.com/products/system-on-modules/dm3730-torpedo-wireless-som/
http://www.logicpd.com/products/system-on-modules/zoom-dm3730-torpedo/

Regards,

Tony


Tony Lindgren (2):
  ARM: OMAP3: Add support for configuring MMC pins as GPIO pins
  ARM: dts: Add minimal support for LogicPD Torpedo DM3730 devkit

 arch/arm/boot/dts/Makefile                        |   1 +
 arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts | 157 +++++++++++++++++++++
 arch/arm/boot/dts/logicpd-torpedo-som.dtsi        | 162 ++++++++++++++++++++++
 arch/arm/mach-omap2/control.c                     |   3 +
 arch/arm/mach-omap2/control.h                     |   3 +
 arch/arm/mach-omap2/pdata-quirks.c                |  22 +++
 6 files changed, 348 insertions(+)
 create mode 100644 arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
 create mode 100644 arch/arm/boot/dts/logicpd-torpedo-som.dtsi

-- 
2.1.4

[PATCH 1/2] ARM: OMAP3: Add support for configuring MMC pins as GPIO pins

[Tony Lindgren]

Some devices are using the MMC1 pins 4..8 as GPIO pins, and in
this case they need to be configured for 1.8V IO voltage if not
done by the bootloader as otherwise some devices like smsc911x
won't work properly.

Let's also make sure this register is saved and restored for
idle.

Cc: Tim Nordell <tim.nordell@logicpd.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/control.c      |  3 +++
 arch/arm/mach-omap2/control.h      |  3 +++
 arch/arm/mach-omap2/pdata-quirks.c | 22 ++++++++++++++++++++++
 3 files changed, 28 insertions(+)

diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index af95a62..f008930 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -112,6 +112,7 @@ struct omap3_control_regs {
 	u32 csirxfe;
 	u32 iva2_bootaddr;
 	u32 iva2_bootmod;
+	u32 wkup_ctrl;
 	u32 debobs_0;
 	u32 debobs_1;
 	u32 debobs_2;
@@ -455,6 +456,7 @@ void omap3_control_save_context(void)
 			omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTADDR);
 	control_context.iva2_bootmod =
 			omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTMOD);
+	control_context.wkup_ctrl = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
 	control_context.debobs_0 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(0));
 	control_context.debobs_1 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(1));
 	control_context.debobs_2 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(2));
@@ -512,6 +514,7 @@ void omap3_control_restore_context(void)
 					OMAP343X_CONTROL_IVA2_BOOTADDR);
 	omap_ctrl_writel(control_context.iva2_bootmod,
 					OMAP343X_CONTROL_IVA2_BOOTMOD);
+	omap_ctrl_writel(control_context.wkup_ctrl, OMAP34XX_CONTROL_WKUP_CTRL);
 	omap_ctrl_writel(control_context.debobs_0, OMAP343X_CONTROL_DEBOBS(0));
 	omap_ctrl_writel(control_context.debobs_1, OMAP343X_CONTROL_DEBOBS(1));
 	omap_ctrl_writel(control_context.debobs_2, OMAP343X_CONTROL_DEBOBS(2));
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index 80d2b7d..ec406bc 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -231,6 +231,9 @@
 #define OMAP343X_PADCONF_ETK_D15	OMAP343X_PADCONF_ETK(17)
 
 /* 34xx GENERAL_WKUP register offsets */
+#define OMAP34XX_CONTROL_WKUP_CTRL	(OMAP343X_CONTROL_GENERAL_WKUP - 0x4)
+#define OMAP36XX_GPIO_IO_PWRDNZ		BIT(6)
+
 #define OMAP343X_CONTROL_WKUP_DEBOBSMUX(i) (OMAP343X_CONTROL_GENERAL_WKUP + \
 						0x008 + (i))
 #define OMAP343X_CONTROL_WKUP_DEBOBS0 (OMAP343X_CONTROL_GENERAL_WKUP + 0x008)
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index af11511..a74612b 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -44,6 +44,27 @@ static void __init omap2420_n8x0_legacy_init(void)
 #endif
 
 #ifdef CONFIG_ARCH_OMAP3
+/*
+ * Configures GPIOs 126 to 129 to 1.8V mode instead of 3.0V
+ * mode for MMC1 in case bootloader did not configure things.
+ * Note that if the pins are used for MMC1, pbias-regulator
+ * manages the IO voltage.
+ */
+static void __init omap3_gpio126_129(void)
+{
+	u32 reg;
+
+	reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
+	reg &= ~OMAP343X_PBIASLITEVMODE1;
+	reg |= OMAP343X_PBIASLITEPWRDNZ1;
+	omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
+	if (cpu_is_omap3630()) {
+		reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
+		reg |= OMAP36XX_GPIO_IO_PWRDNZ;
+		omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
+	}
+}
+
 static void __init hsmmc2_internal_input_clk(void)
 {
 	u32 reg;
@@ -356,6 +377,7 @@ static struct pdata_init pdata_quirks[] __initdata = {
 	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
 	{ "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
 	{ "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
+	{ "logicpd,dm3730-torpedo-devkit", omap3_gpio126_129, },
 	{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
 	{ "ti,am3517-evm", am3517_evm_legacy_init, },
 	{ "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
-- 
2.1.4

[PATCH 2/2] ARM: dts: Add minimal support for LogicPD Torpedo DM3730 devkit

[Tony Lindgren]

The LogicPD Torpedo DM3730 devkit consists of a base board and
two processor boards. One of the processor boards has a WLAN and
the other one does not.

Let's set up basic dts file so we can move to device tree only
based booting over next few merge windows. So far I've tested
that UARTs, MMC1, USB OTG, smsc911x, and basic PM support works.

Note that the wireless support in kernel for wl1283 seems to be
broken, it tries to load wl127x-nvs.bin instead of wl128x-nvs.bin
with firmware.

Cc: Tim Nordell <tim.nordell@logicpd.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/Makefile                        |   1 +
 arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts | 157 +++++++++++++++++++++
 arch/arm/boot/dts/logicpd-torpedo-som.dtsi        | 162 ++++++++++++++++++++++
 3 files changed, 320 insertions(+)
 create mode 100644 arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
 create mode 100644 arch/arm/boot/dts/logicpd-torpedo-som.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 86217db..ceec61c 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -360,6 +360,7 @@ dtb-$(CONFIG_ARCH_OMAP3) += \
 	am3517-craneboard.dtb \
 	am3517-evm.dtb \
 	am3517_mt_ventoux.dtb \
+	logicpd-torpedo-37xx-devkit.dtb \
 	omap3430-sdp.dtb \
 	omap3-beagle.dtb \
 	omap3-beagle-xm.dtb \
diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
new file mode 100644
index 0000000..9a31c1d
--- /dev/null
+++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
@@ -0,0 +1,157 @@
+/*
+ * 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.
+ */
+
+/dts-v1/;
+
+#include "omap36xx.dtsi"
+#include "logicpd-torpedo-som.dtsi"
+#include "omap-gpmc-smsc9221.dtsi"
+
+/ {
+	model = "LogicPD Zoom DM3730 Torpedo Development Kit";
+	compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap36xx";
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_key_pins &gpio_key_pins_wkup>;
+
+		sysboot2 {
+			label = "sysboot2";
+			gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;	/* gpio2 */
+			linux,code = <BTN_0>;
+			gpio-key,wakeup;
+		};
+
+		sysboot5 {
+			label = "sysboot5";
+			gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;	/* gpio7 */
+			linux,code = <BTN_1>;
+			gpio-key,wakeup;
+		};
+
+		gpio1 {
+			label = "gpio1";
+			gpios = <&gpio6 21 GPIO_ACTIVE_LOW>;	/* gpio181 */
+			linux,code = <BTN_2>;
+			gpio-key,wakeup;
+		};
+
+		gpio2 {
+			label = "gpio2";
+			gpios = <&gpio6 18 GPIO_ACTIVE_LOW>;	/* gpio178 */
+			linux,code = <BTN_3>;
+			gpio-key,wakeup;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&led_pins>;
+
+		led1 {
+			label = "led1";
+			gpios = <&gpio6 20 GPIO_ACTIVE_HIGH>;	/* gpio180 */
+			linux,default-trigger = "cpu0";
+		};
+
+		led2 {
+			label = "led2";
+			gpios = <&gpio6 19 GPIO_ACTIVE_HIGH>;	/* gpio179 */
+			linux,default-trigger = "none";
+		};
+	};
+};
+
+&charger {
+	ti,bb-uvolt = <3200000>;
+	ti,bb-uamp = <150>;
+};
+
+&gpmc {
+	ranges = <1 0 0x08000000 0x1000000>;	/* CS1: 16MB for LAN9221 */
+
+	ethernet at gpmc {
+		pinctrl-names = "default";
+		pinctrl-0 = <&lan9221_pins>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+		reg = <1 0 0xff>;
+	};
+};
+
+&mmc1 {
+	interrupts-extended = <&intc 83 &omap3_pmx_core 0x11a>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins &mmc1_cd>;
+	cd-gpios = <&gpio4 31 IRQ_TYPE_LEVEL_LOW>;
+	vmmc-supply = <&vmmc1>;
+	bus-width = <4>;
+	cap-power-off-card;
+};
+
+&omap3_pmx_core {
+	gpio_key_pins: pinmux_gpio_key_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x21d6, PIN_INPUT_PULLUP | MUX_MODE4)	/* mcspi2_clk.gpio_178 */
+			OMAP3_CORE1_IOPAD(0x21dc, PIN_INPUT_PULLUP | MUX_MODE4)	/* mcspi2_cs0.gpio_181 */
+		>;
+	};
+
+	led_pins: pinmux_led_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x21d8, PIN_OUTPUT | MUX_MODE4)	/* gpio_179 */
+			OMAP3_CORE1_IOPAD(0x21da, PIN_OUTPUT | MUX_MODE4)	/* gpio_180 */
+		>;
+	};
+
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x2144, PIN_OUTPUT | MUX_MODE0)	/* sdmmc1_clk.sdmmc1_clk */
+			OMAP3_CORE1_IOPAD(0x2146, PIN_INPUT | MUX_MODE0)	/* sdmmc1_cmd.sdmmc1_cmd */
+			OMAP3_CORE1_IOPAD(0x2148, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat0.sdmmc1_dat0 */
+			OMAP3_CORE1_IOPAD(0x214a, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat1.sdmmc1_dat1 */
+			OMAP3_CORE1_IOPAD(0x214c, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat2.sdmmc1_dat2 */
+			OMAP3_CORE1_IOPAD(0x214e, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat3.sdmmc1_dat3 */
+		>;
+	};
+};
+
+&omap3_pmx_wkup {
+	gpio_key_pins_wkup: pinmux_gpio_key_pins_wkup {
+		pinctrl-single,pins = <
+			OMAP3_WKUP_IOPAD(0x2a0a, PIN_INPUT_PULLUP | MUX_MODE4)	/* sys_boot0.gpio_2 */
+			OMAP3_WKUP_IOPAD(0x2a14, PIN_INPUT_PULLUP | MUX_MODE4)	/* sys_boot5.gpio_7 */
+		>;
+	};
+
+	lan9221_pins: pinmux_lan9221_pins {
+		pinctrl-single,pins = <
+			OMAP3_WKUP_IOPAD(0x2a5a, PIN_INPUT | MUX_MODE4)		/* reserved.gpio_129 */
+		>;
+	};
+
+	mmc1_cd: pinmux_mmc1_cd {
+		pinctrl-single,pins = <
+			OMAP3_WKUP_IOPAD(0x2a54, PIN_INPUT_PULLUP | MUX_MODE4)	/* reserved.gpio_127 */
+		>;
+	};
+};
+
+&uart1 {
+	interrupts-extended = <&intc 72 &omap3_pmx_core OMAP3_UART1_RX>;
+};
+
+/* Wired to the tps65950 on the SOM, only the USB connector is on the devkit */
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
+	mode = <3>;
+	power = <50>;
+};
diff --git a/arch/arm/boot/dts/logicpd-torpedo-som.dtsi b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
new file mode 100644
index 0000000..36387b1
--- /dev/null
+++ b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
@@ -0,0 +1,162 @@
+/*
+ * 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 <dt-bindings/input/input.h>
+
+/ {
+	cpus {
+		cpu at 0 {
+			cpu0-supply = <&vcc>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		user0 {
+			label = "user0";
+			gpios = <&twl_gpio 18 GPIO_ACTIVE_LOW>;	/* LEDA */
+			linux,default-trigger = "none";
+		};
+	};
+
+	wl12xx_vmmc: wl12xx_vmmc {
+		compatible = "regulator-fixed";
+		regulator-name = "vwl1271";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&gpio5 29 0>;   /* gpio157 */
+		startup-delay-us = <70000>;
+		enable-active-high;
+		vin-supply = <&vmmc2>;
+	};
+};
+
+&gpmc {
+	ranges = <0 0 0x00000000 0x1000000>;	/* CS0: 16MB for NAND */
+
+	nand at 0,0 {
+		linux,mtd-name = "micron,mt29f4g16abbda3w";
+		reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
+		nand-bus-width = <16>;
+		ti,nand-ecc-opt = "bch8";
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <44>;
+		gpmc,cs-wr-off-ns = <44>;
+		gpmc,adv-on-ns = <6>;
+		gpmc,adv-rd-off-ns = <34>;
+		gpmc,adv-wr-off-ns = <44>;
+		gpmc,we-off-ns = <40>;
+		gpmc,oe-off-ns = <54>;
+		gpmc,access-ns = <64>;
+		gpmc,rd-cycle-ns = <82>;
+		gpmc,wr-cycle-ns = <82>;
+		gpmc,wr-access-ns = <40>;
+		gpmc,wr-data-mux-bus-ns = <0>;
+		gpmc,device-width = <2>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* u-boot uses mtdparts=omap2-nand.0:512k(x-loader),1920k(u-boot),128k(u-boot-env),4m(kernel),-(fs) */
+
+		x-loader at 0 {
+			label = "x-loader";
+			reg = <0 0x80000>;
+		};
+
+		bootloaders at 80000 {
+			label = "u-boot";
+			reg = <0x80000 0x1e0000>;
+		};
+
+		bootloaders_env at 260000 {
+			label = "u-boot-env";
+			reg = <0x260000 0x20000>;
+		};
+
+		kernel at 280000 {
+			label = "kernel";
+			reg = <0x280000 0x400000>;
+		};
+
+		filesystem at 680000 {
+			label = "fs";
+			reg = <0x680000 0>;	/* 0 = MTDPART_SIZ_FULL */
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <2600000>;
+
+	twl: twl at 48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+/*
+ * Only found on the wireless SOM. For the SOM without wireless, the pins for
+ * MMC3 can be routed with jumpers to the second MMC slot on the devkit and
+ * gpio157 is not connected. So this should be OK to keep common for now,
+ * probably device tree overlays is the way to go with the various SOM and
+ * jumpering combinations for the long run.
+ */
+&mmc3 {
+	interrupts-extended = <&intc 94 &omap3_pmx_core2 0x46>;
+	pinctrl-0 = <&mmc3_pins &mmc3_core2_pins>;
+	pinctrl-names = "default";
+	vmmc-supply = <&wl12xx_vmmc>;
+	non-removable;
+	bus-width = <4>;
+	cap-power-off-card;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	wlcore: wlcore at 2 {
+		compatible = "ti,wl1283";
+		reg = <2>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>; /* gpio 152 */
+		ref-clock-frequency = <26000000>;
+	};
+};
+
+&omap3_pmx_core {
+	mmc3_pins: pinmux_mm3_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x2164, PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc2_dat4.sdmmc3_dat0 */
+			OMAP3_CORE1_IOPAD(0x2166, PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc2_dat5.sdmmc3_dat1 */
+			OMAP3_CORE1_IOPAD(0x2168, PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc2_dat6.sdmmc3_dat2 */
+			OMAP3_CORE1_IOPAD(0x216a, PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc2_dat6.sdmmc3_dat3 */
+			OMAP3_CORE1_IOPAD(0x2184, PIN_INPUT_PULLUP | MUX_MODE4)	/* mcbsp4_clkx.gpio_152 */
+			OMAP3_CORE1_IOPAD(0x218e, PIN_OUTPUT | MUX_MODE4)	/* mcbsp1_fsr.gpio_157 */
+		>;
+	};
+};
+
+&omap3_pmx_core2 {
+	mmc3_core2_pins: pinmux_mmc3_core2_pins {
+		pinctrl-single,pins = <
+			OMAP3630_CORE2_IOPAD(0x25d8, PIN_INPUT_PULLUP | MUX_MODE2)   /* etk_clk.sdmmc3_clk */
+			OMAP3630_CORE2_IOPAD(0x25da, PIN_INPUT_PULLUP | MUX_MODE2)   /* etk_ctl.sdmmc3_cmd */
+		>;
+	};
+};
+
+#include "twl4030.dtsi"
+#include "twl4030_omap3.dtsi"
+
+&twl {
+	twl_power: power {
+		compatible = "ti,twl4030-power-idle-osc-off", "ti,twl4030-power-idle";
+		ti,use_poweroff;
+	};
+};
+
+&twl_gpio {
+	ti,use-leds;
+};
-- 
2.1.4

[PATCH 1/2] ARM: OMAP3: Add support for configuring MMC pins as GPIO pins

[Tony Lindgren]

* Tony Lindgren <tony@atomide.com> [150501 18:07]:
> +/*
> + * Configures GPIOs 126 to 129 to 1.8V mode instead of 3.0V
> + * mode for MMC1 in case bootloader did not configure things.
> + * Note that if the pins are used for MMC1, pbias-regulator
> + * manages the IO voltage.
> + */
> +static void __init omap3_gpio126_129(void)
> +{
> +	u32 reg;
> +
> +	reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
> +	reg &= ~OMAP343X_PBIASLITEVMODE1;
> +	reg |= OMAP343X_PBIASLITEPWRDNZ1;
> +	omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
> +	if (cpu_is_omap3630()) {
> +		reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
> +		reg |= OMAP36XX_GPIO_IO_PWRDNZ;
> +		omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
> +	}
> +}
> +

This seems to not include GPIO 128 as pointed out by Tim Nordell,
so patch with updated naming below.

Regards,

Tony

8< ------------------
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 13 May 2015 11:42:59 -0700
Subject: [PATCH] ARM: OMAP3: Add support for configuring MMC pins as GPIO pins

Some devices are using the MMC1 pins 4..8 as GPIO pins, and in
this case they need to be configured for 1.8V IO voltage if not
done by the bootloader as otherwise some devices like smsc911x
won't work properly.

Let's also make sure this register is saved and restored for
idle.

Cc: Tim Nordell <tim.nordell@logicpd.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -112,6 +112,7 @@ struct omap3_control_regs {
 	u32 csirxfe;
 	u32 iva2_bootaddr;
 	u32 iva2_bootmod;
+	u32 wkup_ctrl;
 	u32 debobs_0;
 	u32 debobs_1;
 	u32 debobs_2;
@@ -455,6 +456,7 @@ void omap3_control_save_context(void)
 			omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTADDR);
 	control_context.iva2_bootmod =
 			omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTMOD);
+	control_context.wkup_ctrl = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
 	control_context.debobs_0 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(0));
 	control_context.debobs_1 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(1));
 	control_context.debobs_2 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(2));
@@ -512,6 +514,7 @@ void omap3_control_restore_context(void)
 					OMAP343X_CONTROL_IVA2_BOOTADDR);
 	omap_ctrl_writel(control_context.iva2_bootmod,
 					OMAP343X_CONTROL_IVA2_BOOTMOD);
+	omap_ctrl_writel(control_context.wkup_ctrl, OMAP34XX_CONTROL_WKUP_CTRL);
 	omap_ctrl_writel(control_context.debobs_0, OMAP343X_CONTROL_DEBOBS(0));
 	omap_ctrl_writel(control_context.debobs_1, OMAP343X_CONTROL_DEBOBS(1));
 	omap_ctrl_writel(control_context.debobs_2, OMAP343X_CONTROL_DEBOBS(2));
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -231,6 +231,9 @@
 #define OMAP343X_PADCONF_ETK_D15	OMAP343X_PADCONF_ETK(17)
 
 /* 34xx GENERAL_WKUP register offsets */
+#define OMAP34XX_CONTROL_WKUP_CTRL	(OMAP343X_CONTROL_GENERAL_WKUP - 0x4)
+#define OMAP36XX_GPIO_IO_PWRDNZ		BIT(6)
+
 #define OMAP343X_CONTROL_WKUP_DEBOBSMUX(i) (OMAP343X_CONTROL_GENERAL_WKUP + \
 						0x008 + (i))
 #define OMAP343X_CONTROL_WKUP_DEBOBS0 (OMAP343X_CONTROL_GENERAL_WKUP + 0x008)
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -44,6 +44,27 @@ static void __init omap2420_n8x0_legacy_init(void)
 #endif
 
 #ifdef CONFIG_ARCH_OMAP3
+/*
+ * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V
+ * mode for MMC1 in case bootloader did not configure things.
+ * Note that if the pins are used for MMC1, pbias-regulator
+ * manages the IO voltage.
+ */
+static void __init omap3_gpio126_127_129(void)
+{
+	u32 reg;
+
+	reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
+	reg &= ~OMAP343X_PBIASLITEVMODE1;
+	reg |= OMAP343X_PBIASLITEPWRDNZ1;
+	omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
+	if (cpu_is_omap3630()) {
+		reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
+		reg |= OMAP36XX_GPIO_IO_PWRDNZ;
+		omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
+	}
+}
+
 static void __init hsmmc2_internal_input_clk(void)
 {
 	u32 reg;
@@ -356,6 +377,7 @@ static struct pdata_init pdata_quirks[] __initdata = {
 	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
 	{ "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
 	{ "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
+	{ "logicpd,dm3730-torpedo-devkit", omap3_gpio126_127_129, },
 	{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
 	{ "ti,am3517-evm", am3517_evm_legacy_init, },
 	{ "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },

[PATCH 2/2] ARM: dts: Add minimal support for LogicPD Torpedo DM3730 devkit

[Tony Lindgren]

* Tony Lindgren <tony@atomide.com> [150501 18:07]:
> +&gpmc {
> +	ranges = <1 0 0x08000000 0x1000000>;	/* CS1: 16MB for LAN9221 */
> +
> +	ethernet at gpmc {
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&lan9221_pins>;
> +		interrupt-parent = <&gpio5>;
> +		interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
> +		reg = <1 0 0xff>;
> +	};
> +};
> +
> +&mmc1 {
> +	interrupts-extended = <&intc 83 &omap3_pmx_core 0x11a>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&mmc1_pins &mmc1_cd>;
> +	cd-gpios = <&gpio4 31 IRQ_TYPE_LEVEL_LOW>;
> +	vmmc-supply = <&vmmc1>;
> +	bus-width = <4>;
> +	cap-power-off-card;
> +};

And these were missing the comments for the GPIO line numbers as
done for the other GPIOs in the dts file. Updated patch below.

Regards,

Tony

8< ----------------------
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 13 May 2015 11:42:59 -0700
Subject: [PATCH] ARM: dts: Add minimal support for LogicPD Torpedo DM3730
 devkit

The LogicPD Torpedo DM3730 devkit consists of a base board and
two processor boards. One of the processor boards has a WLAN and
the other one does not.

Let's set up basic dts file so we can move to device tree only
based booting over next few merge windows. So far I've tested
that UARTs, MMC1, USB OTG, smsc911x, and basic PM support works.

Note that the wireless support in kernel for wl1283 seems to be
broken, it tries to load wl127x-nvs.bin instead of wl128x-nvs.bin
with firmware.

Cc: Tim Nordell <tim.nordell@logicpd.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -360,6 +360,7 @@ dtb-$(CONFIG_ARCH_OMAP3) += \
 	am3517-craneboard.dtb \
 	am3517-evm.dtb \
 	am3517_mt_ventoux.dtb \
+	logicpd-torpedo-37xx-devkit.dtb \
 	omap3430-sdp.dtb \
 	omap3-beagle.dtb \
 	omap3-beagle-xm.dtb \
--- /dev/null
+++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
@@ -0,0 +1,157 @@
+/*
+ * 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.
+ */
+
+/dts-v1/;
+
+#include "omap36xx.dtsi"
+#include "logicpd-torpedo-som.dtsi"
+#include "omap-gpmc-smsc9221.dtsi"
+
+/ {
+	model = "LogicPD Zoom DM3730 Torpedo Development Kit";
+	compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap36xx";
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_key_pins &gpio_key_pins_wkup>;
+
+		sysboot2 {
+			label = "sysboot2";
+			gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;	/* gpio2 */
+			linux,code = <BTN_0>;
+			gpio-key,wakeup;
+		};
+
+		sysboot5 {
+			label = "sysboot5";
+			gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;	/* gpio7 */
+			linux,code = <BTN_1>;
+			gpio-key,wakeup;
+		};
+
+		gpio1 {
+			label = "gpio1";
+			gpios = <&gpio6 21 GPIO_ACTIVE_LOW>;	/* gpio181 */
+			linux,code = <BTN_2>;
+			gpio-key,wakeup;
+		};
+
+		gpio2 {
+			label = "gpio2";
+			gpios = <&gpio6 18 GPIO_ACTIVE_LOW>;	/* gpio178 */
+			linux,code = <BTN_3>;
+			gpio-key,wakeup;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&led_pins>;
+
+		led1 {
+			label = "led1";
+			gpios = <&gpio6 20 GPIO_ACTIVE_HIGH>;	/* gpio180 */
+			linux,default-trigger = "cpu0";
+		};
+
+		led2 {
+			label = "led2";
+			gpios = <&gpio6 19 GPIO_ACTIVE_HIGH>;	/* gpio179 */
+			linux,default-trigger = "none";
+		};
+	};
+};
+
+&charger {
+	ti,bb-uvolt = <3200000>;
+	ti,bb-uamp = <150>;
+};
+
+&gpmc {
+	ranges = <1 0 0x08000000 0x1000000>;	/* CS1: 16MB for LAN9221 */
+
+	ethernet at gpmc {
+		pinctrl-names = "default";
+		pinctrl-0 = <&lan9221_pins>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <1 IRQ_TYPE_LEVEL_LOW>;		/* gpio129 */
+		reg = <1 0 0xff>;
+	};
+};
+
+&mmc1 {
+	interrupts-extended = <&intc 83 &omap3_pmx_core 0x11a>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins &mmc1_cd>;
+	cd-gpios = <&gpio4 31 IRQ_TYPE_LEVEL_LOW>;		/* gpio127 */
+	vmmc-supply = <&vmmc1>;
+	bus-width = <4>;
+	cap-power-off-card;
+};
+
+&omap3_pmx_core {
+	gpio_key_pins: pinmux_gpio_key_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x21d6, PIN_INPUT_PULLUP | MUX_MODE4)	/* mcspi2_clk.gpio_178 */
+			OMAP3_CORE1_IOPAD(0x21dc, PIN_INPUT_PULLUP | MUX_MODE4)	/* mcspi2_cs0.gpio_181 */
+		>;
+	};
+
+	led_pins: pinmux_led_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x21d8, PIN_OUTPUT | MUX_MODE4)	/* gpio_179 */
+			OMAP3_CORE1_IOPAD(0x21da, PIN_OUTPUT | MUX_MODE4)	/* gpio_180 */
+		>;
+	};
+
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x2144, PIN_OUTPUT | MUX_MODE0)	/* sdmmc1_clk.sdmmc1_clk */
+			OMAP3_CORE1_IOPAD(0x2146, PIN_INPUT | MUX_MODE0)	/* sdmmc1_cmd.sdmmc1_cmd */
+			OMAP3_CORE1_IOPAD(0x2148, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat0.sdmmc1_dat0 */
+			OMAP3_CORE1_IOPAD(0x214a, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat1.sdmmc1_dat1 */
+			OMAP3_CORE1_IOPAD(0x214c, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat2.sdmmc1_dat2 */
+			OMAP3_CORE1_IOPAD(0x214e, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat3.sdmmc1_dat3 */
+		>;
+	};
+};
+
+&omap3_pmx_wkup {
+	gpio_key_pins_wkup: pinmux_gpio_key_pins_wkup {
+		pinctrl-single,pins = <
+			OMAP3_WKUP_IOPAD(0x2a0a, PIN_INPUT_PULLUP | MUX_MODE4)	/* sys_boot0.gpio_2 */
+			OMAP3_WKUP_IOPAD(0x2a14, PIN_INPUT_PULLUP | MUX_MODE4)	/* sys_boot5.gpio_7 */
+		>;
+	};
+
+	lan9221_pins: pinmux_lan9221_pins {
+		pinctrl-single,pins = <
+			OMAP3_WKUP_IOPAD(0x2a5a, PIN_INPUT | MUX_MODE4)		/* reserved.gpio_129 */
+		>;
+	};
+
+	mmc1_cd: pinmux_mmc1_cd {
+		pinctrl-single,pins = <
+			OMAP3_WKUP_IOPAD(0x2a54, PIN_INPUT_PULLUP | MUX_MODE4)	/* reserved.gpio_127 */
+		>;
+	};
+};
+
+&uart1 {
+	interrupts-extended = <&intc 72 &omap3_pmx_core OMAP3_UART1_RX>;
+};
+
+/* Wired to the tps65950 on the SOM, only the USB connector is on the devkit */
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
+	mode = <3>;
+	power = <50>;
+};
--- /dev/null
+++ b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
@@ -0,0 +1,162 @@
+/*
+ * 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 <dt-bindings/input/input.h>
+
+/ {
+	cpus {
+		cpu at 0 {
+			cpu0-supply = <&vcc>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		user0 {
+			label = "user0";
+			gpios = <&twl_gpio 18 GPIO_ACTIVE_LOW>;	/* LEDA */
+			linux,default-trigger = "none";
+		};
+	};
+
+	wl12xx_vmmc: wl12xx_vmmc {
+		compatible = "regulator-fixed";
+		regulator-name = "vwl1271";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&gpio5 29 0>;   /* gpio157 */
+		startup-delay-us = <70000>;
+		enable-active-high;
+		vin-supply = <&vmmc2>;
+	};
+};
+
+&gpmc {
+	ranges = <0 0 0x00000000 0x1000000>;	/* CS0: 16MB for NAND */
+
+	nand at 0,0 {
+		linux,mtd-name = "micron,mt29f4g16abbda3w";
+		reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
+		nand-bus-width = <16>;
+		ti,nand-ecc-opt = "bch8";
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <44>;
+		gpmc,cs-wr-off-ns = <44>;
+		gpmc,adv-on-ns = <6>;
+		gpmc,adv-rd-off-ns = <34>;
+		gpmc,adv-wr-off-ns = <44>;
+		gpmc,we-off-ns = <40>;
+		gpmc,oe-off-ns = <54>;
+		gpmc,access-ns = <64>;
+		gpmc,rd-cycle-ns = <82>;
+		gpmc,wr-cycle-ns = <82>;
+		gpmc,wr-access-ns = <40>;
+		gpmc,wr-data-mux-bus-ns = <0>;
+		gpmc,device-width = <2>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* u-boot uses mtdparts=omap2-nand.0:512k(x-loader),1920k(u-boot),128k(u-boot-env),4m(kernel),-(fs) */
+
+		x-loader at 0 {
+			label = "x-loader";
+			reg = <0 0x80000>;
+		};
+
+		bootloaders at 80000 {
+			label = "u-boot";
+			reg = <0x80000 0x1e0000>;
+		};
+
+		bootloaders_env at 260000 {
+			label = "u-boot-env";
+			reg = <0x260000 0x20000>;
+		};
+
+		kernel at 280000 {
+			label = "kernel";
+			reg = <0x280000 0x400000>;
+		};
+
+		filesystem at 680000 {
+			label = "fs";
+			reg = <0x680000 0>;	/* 0 = MTDPART_SIZ_FULL */
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <2600000>;
+
+	twl: twl at 48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+/*
+ * Only found on the wireless SOM. For the SOM without wireless, the pins for
+ * MMC3 can be routed with jumpers to the second MMC slot on the devkit and
+ * gpio157 is not connected. So this should be OK to keep common for now,
+ * probably device tree overlays is the way to go with the various SOM and
+ * jumpering combinations for the long run.
+ */
+&mmc3 {
+	interrupts-extended = <&intc 94 &omap3_pmx_core2 0x46>;
+	pinctrl-0 = <&mmc3_pins &mmc3_core2_pins>;
+	pinctrl-names = "default";
+	vmmc-supply = <&wl12xx_vmmc>;
+	non-removable;
+	bus-width = <4>;
+	cap-power-off-card;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	wlcore: wlcore at 2 {
+		compatible = "ti,wl1283";
+		reg = <2>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>; /* gpio 152 */
+		ref-clock-frequency = <26000000>;
+	};
+};
+
+&omap3_pmx_core {
+	mmc3_pins: pinmux_mm3_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x2164, PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc2_dat4.sdmmc3_dat0 */
+			OMAP3_CORE1_IOPAD(0x2166, PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc2_dat5.sdmmc3_dat1 */
+			OMAP3_CORE1_IOPAD(0x2168, PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc2_dat6.sdmmc3_dat2 */
+			OMAP3_CORE1_IOPAD(0x216a, PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc2_dat6.sdmmc3_dat3 */
+			OMAP3_CORE1_IOPAD(0x2184, PIN_INPUT_PULLUP | MUX_MODE4)	/* mcbsp4_clkx.gpio_152 */
+			OMAP3_CORE1_IOPAD(0x218e, PIN_OUTPUT | MUX_MODE4)	/* mcbsp1_fsr.gpio_157 */
+		>;
+	};
+};
+
+&omap3_pmx_core2 {
+	mmc3_core2_pins: pinmux_mmc3_core2_pins {
+		pinctrl-single,pins = <
+			OMAP3630_CORE2_IOPAD(0x25d8, PIN_INPUT_PULLUP | MUX_MODE2)   /* etk_clk.sdmmc3_clk */
+			OMAP3630_CORE2_IOPAD(0x25da, PIN_INPUT_PULLUP | MUX_MODE2)   /* etk_ctl.sdmmc3_cmd */
+		>;
+	};
+};
+
+#include "twl4030.dtsi"
+#include "twl4030_omap3.dtsi"
+
+&twl {
+	twl_power: power {
+		compatible = "ti,twl4030-power-idle-osc-off", "ti,twl4030-power-idle";
+		ti,use_poweroff;
+	};
+};
+
+&twl_gpio {
+	ti,use-leds;
+};