From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Enable USB2.0 support on RZ/T2H and RZ/N2H EVKs.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
.../dts/renesas/r9a09g077m44-rzt2h-evk.dts | 36 ++++++++++++++++
.../dts/renesas/r9a09g087m44-rzn2h-evk.dts | 41 +++++++++++++++++++
.../dts/renesas/rzt2h-n2h-evk-common.dtsi | 22 ++++++++++
3 files changed, 99 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
index 264f7ddb8cc5..bcd779cd51a2 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
@@ -29,6 +29,28 @@
*/
#define SD1_MICRO_SD 1
+/*
+ * USB Pin Configuration:
+ *
+ * This board is equipped with three USB connectors: Type-A (CN80), Mini-B (CN79),
+ * and Micro-AB (CN33). The RZ/T2H SoC has a single USB channel, so either the USB
+ * host interface or the USB function interface can be used, but not both at the
+ * same time.
+ *
+ * By default, the Type-A (CN80) and Mini-B (CN79) connectors are enabled.
+ * Configure the switches as follows:
+ * - P00_0 - P00_2 (control signals for USB power supply): SW1[5] = ON
+ * - USB_VBUSIN (used for USB function): SW7[7] = OFF; SW7[8] = ON
+ * - USB_VBUSEN (used for USB_HF_VBUSEN): SW7[9] = OFF; SW7[10] = ON
+ *
+ * To enable the Micro-AB (CN33) USB OTG connector, set the following macro to 1
+ * and configure the switches as follows:
+ * - P00_0 - P00_2 (control signals for USB power supply): SW1[5] = ON
+ * - USB_VBUSIN (used for USB OTG): SW7[7] = ON; SW7[8] = OFF
+ * - USB_VBUSEN (used for USB_OTG_VBUSEN): SW7[9] = ON; SW7[10] = OFF
+ */
+#define USB_OTG 0
+
#include "rzt2h-n2h-evk-common.dtsi"
/ {
@@ -145,4 +167,18 @@ i2c1_pins: i2c1-pins {
pinmux = <RZT2H_PORT_PINMUX(5, 0, 0x17)>, /* SDA */
<RZT2H_PORT_PINMUX(4, 7, 0x17)>; /* SCL */
};
+
+#if USB_OTG
+ usb-exicen-hog {
+ gpio-hog;
+ gpios = <RZT2H_GPIO(0, 2) GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "usb_exicen_a";
+ };
+#endif
+
+ usb_pins: usb-pins {
+ pinmux = <RZT2H_PORT_PINMUX(0, 0, 0x13)>, /* VBUS */
+ <RZT2H_PORT_PINMUX(0, 1, 0x13)>; /* OVRCUR */
+ };
};
diff --git a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
index 80f358fb2d74..b98b0f7c1128 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
@@ -33,6 +33,33 @@
*/
#define SD1_MICRO_SD 1
+/*
+ * USB Pin Configuration:
+ *
+ * This board is equipped with three USB connectors: Type-A (CN7), Mini-B (CN8),
+ * and Micro-AB (CN9). The RZ/N2H SoC has a single USB channel, so either the USB
+ * host interface or the USB function interface can be used, but not both at the
+ * same time.
+ *
+ * By default, the Type-A (CN7) and Mini-B (CN8) connectors are enabled.
+ * Configure the switches as follows:
+ * - P02_2 - P02_3 (control signals for USB power supply): DSW2[6] = OFF;
+ * - P02_2 (used for VBUSEN): DSW14[5] = OFF; DSW14[6] = ON
+ * - P02_3 (used for USB_OVRCUR): DSW14[1] = OFF; DSW14[2] = ON
+ * - USB_VBUSIN (used for VBUS of CN8 for function): DSW16[1] = OFF; DSW16[2] = ON
+ * - USB_VBUSEN (used for USB_HF_VBUSEN): DSW16[3] = OFF; DSW16[4] = ON
+ *
+ * To enable the Micro-AB (CN9) USB OTG connector, set the following macro to 1
+ * and configure the switches as follows:
+ * - P02_2 - P02_3 (control signals for USB power supply): DSW2[6] = OFF;
+ * - P02_2 (used for VBUSEN): DSW14[5] = OFF; DSW14[6] = ON
+ * - P02_3 (used for USB_OVRCUR): DSW14[1] = OFF; DSW14[2] = ON
+ * - USB_VBUSIN (used for VBUS of CN9 for OTG): DSW16[1] = ON; DSW16[2] = OFF
+ * - USB_VBUSEN (used for USB_OTG_VBUSEN): DSW16[3] = ON; DSW16[4] = OFF
+ * - USB_EXICEN (used for USB OTG EXICEN): DSW14[3] = OFF; DSW14[4] = ON
+ */
+#define USB_OTG 0
+
#include "rzt2h-n2h-evk-common.dtsi"
/*
@@ -185,4 +212,18 @@ i2c1_pins: i2c1-pins {
pinmux = <RZT2H_PORT_PINMUX(3, 3, 0x17)>,
<RZT2H_PORT_PINMUX(3, 4, 0x17)>;
};
+
+#if USB_OTG
+ usb-exicen-hog {
+ gpio-hog;
+ gpios = <RZT2H_GPIO(2, 4) GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "usb_exicen_a";
+ };
+#endif
+
+ usb_pins: usb-pins {
+ pinmux = <RZT2H_PORT_PINMUX(2, 2, 0x13)>, /* VBUS */
+ <RZT2H_PORT_PINMUX(2, 3, 0x13)>; /* OVRCUR */
+ };
};
diff --git a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
index 91068042bec0..5c91002c99c4 100644
--- a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
@@ -65,10 +65,20 @@ vccq_sdhi1: regulator-vccq-sdhi1 {
#endif
};
+&ehci {
+ dr_mode = "otg";
+ status = "okay";
+};
+
&extal_clk {
clock-frequency = <25000000>;
};
+&hsusb {
+ dr_mode = "otg";
+ status = "okay";
+};
+
&i2c0 {
eeprom: eeprom@50 {
compatible = "renesas,r1ex24016", "atmel,24c16";
@@ -77,6 +87,11 @@ eeprom: eeprom@50 {
};
};
+&ohci {
+ dr_mode = "otg";
+ status = "okay";
+};
+
&pinctrl {
/*
* SCI0 Pin Configuration:
@@ -218,6 +233,13 @@ &sdhi1 {
};
#endif
+&usb2_phy {
+ pinctrl-0 = <&usb_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
&wdt2 {
status = "okay";
timeout-sec = <60>;
--
2.51.0Hi Prabhakar,
On Thu, 21 Aug 2025 at 18:19, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Enable USB2.0 support on RZ/T2H and RZ/N2H EVKs.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Thanks for your patch!
> --- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> +++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> @@ -29,6 +29,28 @@
> */
> #define SD1_MICRO_SD 1
>
> +/*
> + * USB Pin Configuration:
> + *
> + * This board is equipped with three USB connectors: Type-A (CN80), Mini-B (CN79),
> + * and Micro-AB (CN33). The RZ/T2H SoC has a single USB channel, so either the USB
> + * host interface or the USB function interface can be used, but not both at the
> + * same time.
Please reflow the text to fit in 80 columns.
The last sentence applies to the CN80 and CN79 connectors only, right?
> + *
> + * By default, the Type-A (CN80) and Mini-B (CN79) connectors are enabled.
> + * Configure the switches as follows:
> + * - P00_0 - P00_2 (control signals for USB power supply): SW1[5] = ON
> + * - USB_VBUSIN (used for USB function): SW7[7] = OFF; SW7[8] = ON
> + * - USB_VBUSEN (used for USB_HF_VBUSEN): SW7[9] = OFF; SW7[10] = ON
> + *
> + * To enable the Micro-AB (CN33) USB OTG connector, set the following macro to 1
> + * and configure the switches as follows:
> + * - P00_0 - P00_2 (control signals for USB power supply): SW1[5] = ON
> + * - USB_VBUSIN (used for USB OTG): SW7[7] = ON; SW7[8] = OFF
> + * - USB_VBUSEN (used for USB_OTG_VBUSEN): SW7[9] = ON; SW7[10] = OFF
> + */
> +#define USB_OTG 0
> +
> #include "rzt2h-n2h-evk-common.dtsi"
>
> / {
> @@ -145,4 +167,18 @@ i2c1_pins: i2c1-pins {
> pinmux = <RZT2H_PORT_PINMUX(5, 0, 0x17)>, /* SDA */
> <RZT2H_PORT_PINMUX(4, 7, 0x17)>; /* SCL */
> };
> +
> +#if USB_OTG
> + usb-exicen-hog {
> + gpio-hog;
> + gpios = <RZT2H_GPIO(0, 2) GPIO_ACTIVE_HIGH>;
> + output-high;
> + line-name = "usb_exicen_a";
> + };
> +#endif
> +
> + usb_pins: usb-pins {
> + pinmux = <RZT2H_PORT_PINMUX(0, 0, 0x13)>, /* VBUS */
s/VBUS/VBUSEN/?
> + <RZT2H_PORT_PINMUX(0, 1, 0x13)>; /* OVRCUR */
> + };
> };
> diff --git a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
> index 80f358fb2d74..b98b0f7c1128 100644
> --- a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
> +++ b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
> @@ -33,6 +33,33 @@
> */
> #define SD1_MICRO_SD 1
>
> +/*
> + * USB Pin Configuration:
> + *
> + * This board is equipped with three USB connectors: Type-A (CN7), Mini-B (CN8),
> + * and Micro-AB (CN9). The RZ/N2H SoC has a single USB channel, so either the USB
> + * host interface or the USB function interface can be used, but not both at the
> + * same time.
Please reflow the text to fit in 80 columns.
The last sentence applies to the CN7 and CN8 connectors only, right?
> + *
> + * By default, the Type-A (CN7) and Mini-B (CN8) connectors are enabled.
> + * Configure the switches as follows:
> + * - P02_2 - P02_3 (control signals for USB power supply): DSW2[6] = OFF;
s/DSW2[6]/DSW2[5]/?
> + * - P02_2 (used for VBUSEN): DSW14[5] = OFF; DSW14[6] = ON
> + * - P02_3 (used for USB_OVRCUR): DSW14[1] = OFF; DSW14[2] = ON
> + * - USB_VBUSIN (used for VBUS of CN8 for function): DSW16[1] = OFF; DSW16[2] = ON
> + * - USB_VBUSEN (used for USB_HF_VBUSEN): DSW16[3] = OFF; DSW16[4] = ON
> + *
> + * To enable the Micro-AB (CN9) USB OTG connector, set the following macro to 1
> + * and configure the switches as follows:
> + * - P02_2 - P02_3 (control signals for USB power supply): DSW2[6] = OFF;
s/DSW2[6]/DSW2[5]/?
> + * - P02_2 (used for VBUSEN): DSW14[5] = OFF; DSW14[6] = ON
> + * - P02_3 (used for USB_OVRCUR): DSW14[1] = OFF; DSW14[2] = ON
> + * - USB_VBUSIN (used for VBUS of CN9 for OTG): DSW16[1] = ON; DSW16[2] = OFF
> + * - USB_VBUSEN (used for USB_OTG_VBUSEN): DSW16[3] = ON; DSW16[4] = OFF
> + * - USB_EXICEN (used for USB OTG EXICEN): DSW14[3] = OFF; DSW14[4] = ON
Looks like you could use P00_0 - P00_2 instead of P02_2 - P02_3, like
on the RZ/T2H EVK?
But you don't want to do that because you want to use these pins for Ethernet?
> + */
> +#define USB_OTG 0
> +
> #include "rzt2h-n2h-evk-common.dtsi"
>
> /*
> @@ -185,4 +212,18 @@ i2c1_pins: i2c1-pins {
> pinmux = <RZT2H_PORT_PINMUX(3, 3, 0x17)>,
> <RZT2H_PORT_PINMUX(3, 4, 0x17)>;
> };
> +
> +#if USB_OTG
> + usb-exicen-hog {
> + gpio-hog;
> + gpios = <RZT2H_GPIO(2, 4) GPIO_ACTIVE_HIGH>;
> + output-high;
> + line-name = "usb_exicen_a";
> + };
> +#endif
> +
> + usb_pins: usb-pins {
> + pinmux = <RZT2H_PORT_PINMUX(2, 2, 0x13)>, /* VBUS */
s/VBUS/VBUSEN/?
> + <RZT2H_PORT_PINMUX(2, 3, 0x13)>; /* OVRCUR */
> + };
> };
The rest LGTM.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
Hi Geert,
Thank you for the review.
On Wed, Sep 3, 2025 at 4:04 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Thu, 21 Aug 2025 at 18:19, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > Enable USB2.0 support on RZ/T2H and RZ/N2H EVKs.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Thanks for your patch!
>
> > --- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> > +++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> > @@ -29,6 +29,28 @@
> > */
> > #define SD1_MICRO_SD 1
> >
> > +/*
> > + * USB Pin Configuration:
> > + *
> > + * This board is equipped with three USB connectors: Type-A (CN80), Mini-B (CN79),
> > + * and Micro-AB (CN33). The RZ/T2H SoC has a single USB channel, so either the USB
> > + * host interface or the USB function interface can be used, but not both at the
> > + * same time.
>
> Please reflow the text to fit in 80 columns.
>
Ok, I will reflow it to 80 columns
> The last sentence applies to the CN80 and CN79 connectors only, right?
>
Yes, I'll reword it to say `but not both at the same time while using
CN79 and CN80 connectors.`
> > + *
> > + * By default, the Type-A (CN80) and Mini-B (CN79) connectors are enabled.
> > + * Configure the switches as follows:
> > + * - P00_0 - P00_2 (control signals for USB power supply): SW1[5] = ON
> > + * - USB_VBUSIN (used for USB function): SW7[7] = OFF; SW7[8] = ON
> > + * - USB_VBUSEN (used for USB_HF_VBUSEN): SW7[9] = OFF; SW7[10] = ON
> > + *
> > + * To enable the Micro-AB (CN33) USB OTG connector, set the following macro to 1
> > + * and configure the switches as follows:
> > + * - P00_0 - P00_2 (control signals for USB power supply): SW1[5] = ON
> > + * - USB_VBUSIN (used for USB OTG): SW7[7] = ON; SW7[8] = OFF
> > + * - USB_VBUSEN (used for USB_OTG_VBUSEN): SW7[9] = ON; SW7[10] = OFF
> > + */
> > +#define USB_OTG 0
> > +
> > #include "rzt2h-n2h-evk-common.dtsi"
> >
> > / {
> > @@ -145,4 +167,18 @@ i2c1_pins: i2c1-pins {
> > pinmux = <RZT2H_PORT_PINMUX(5, 0, 0x17)>, /* SDA */
> > <RZT2H_PORT_PINMUX(4, 7, 0x17)>; /* SCL */
> > };
> > +
> > +#if USB_OTG
> > + usb-exicen-hog {
> > + gpio-hog;
> > + gpios = <RZT2H_GPIO(0, 2) GPIO_ACTIVE_HIGH>;
> > + output-high;
> > + line-name = "usb_exicen_a";
> > + };
> > +#endif
> > +
> > + usb_pins: usb-pins {
> > + pinmux = <RZT2H_PORT_PINMUX(0, 0, 0x13)>, /* VBUS */
>
> s/VBUS/VBUSEN/?
>
OK.
> > + <RZT2H_PORT_PINMUX(0, 1, 0x13)>; /* OVRCUR */
> > + };
> > };
> > diff --git a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
> > index 80f358fb2d74..b98b0f7c1128 100644
> > --- a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
> > +++ b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
> > @@ -33,6 +33,33 @@
> > */
> > #define SD1_MICRO_SD 1
> >
> > +/*
> > + * USB Pin Configuration:
> > + *
> > + * This board is equipped with three USB connectors: Type-A (CN7), Mini-B (CN8),
> > + * and Micro-AB (CN9). The RZ/N2H SoC has a single USB channel, so either the USB
> > + * host interface or the USB function interface can be used, but not both at the
> > + * same time.
>
> Please reflow the text to fit in 80 columns.
>
OK.
> The last sentence applies to the CN7 and CN8 connectors only, right?
>
Yes. I'll reword it to say `but not both at the same time while using
CN7 and CN8 connectors`
> > + *
> > + * By default, the Type-A (CN7) and Mini-B (CN8) connectors are enabled.
> > + * Configure the switches as follows:
> > + * - P02_2 - P02_3 (control signals for USB power supply): DSW2[6] = OFF;
>
> s/DSW2[6]/DSW2[5]/?
>
The above is correct,
DSW2[5] is OFF, P00_0 to P00_2 are connected to BSC2(CN43) and GPT0(CN49).
DSW2[5] is ON, P00_0 to P00_2 are used as control signals for the USB
power-supply IC.
But we are using P02_2 and P02_3
DSW2[5] is OFF, P01_0, P01_2, P01_4 to P01_7, and P02_0 to P02_3 are
connected to ENCIF0(CN44) and GPT0(CN49), and used as control signals
for the USB power-supply IC.
> > + * - P02_2 (used for VBUSEN): DSW14[5] = OFF; DSW14[6] = ON
> > + * - P02_3 (used for USB_OVRCUR): DSW14[1] = OFF; DSW14[2] = ON
> > + * - USB_VBUSIN (used for VBUS of CN8 for function): DSW16[1] = OFF; DSW16[2] = ON
> > + * - USB_VBUSEN (used for USB_HF_VBUSEN): DSW16[3] = OFF; DSW16[4] = ON
> > + *
> > + * To enable the Micro-AB (CN9) USB OTG connector, set the following macro to 1
> > + * and configure the switches as follows:
> > + * - P02_2 - P02_3 (control signals for USB power supply): DSW2[6] = OFF;
>
> s/DSW2[6]/DSW2[5]/?
>
ditto.
> > + * - P02_2 (used for VBUSEN): DSW14[5] = OFF; DSW14[6] = ON
> > + * - P02_3 (used for USB_OVRCUR): DSW14[1] = OFF; DSW14[2] = ON
> > + * - USB_VBUSIN (used for VBUS of CN9 for OTG): DSW16[1] = ON; DSW16[2] = OFF
> > + * - USB_VBUSEN (used for USB_OTG_VBUSEN): DSW16[3] = ON; DSW16[4] = OFF
> > + * - USB_EXICEN (used for USB OTG EXICEN): DSW14[3] = OFF; DSW14[4] = ON
>
> Looks like you could use P00_0 - P00_2 instead of P02_2 - P02_3, like
> on the RZ/T2H EVK?
> But you don't want to do that because you want to use these pins for Ethernet?
>
Yes, I plan to use them for Ethernet.
> > + */
> > +#define USB_OTG 0
> > +
> > #include "rzt2h-n2h-evk-common.dtsi"
> >
> > /*
> > @@ -185,4 +212,18 @@ i2c1_pins: i2c1-pins {
> > pinmux = <RZT2H_PORT_PINMUX(3, 3, 0x17)>,
> > <RZT2H_PORT_PINMUX(3, 4, 0x17)>;
> > };
> > +
> > +#if USB_OTG
> > + usb-exicen-hog {
> > + gpio-hog;
> > + gpios = <RZT2H_GPIO(2, 4) GPIO_ACTIVE_HIGH>;
> > + output-high;
> > + line-name = "usb_exicen_a";
> > + };
> > +#endif
> > +
> > + usb_pins: usb-pins {
> > + pinmux = <RZT2H_PORT_PINMUX(2, 2, 0x13)>, /* VBUS */
>
> s/VBUS/VBUSEN/?
>
OK.
Cheers,
Prabhakar
Hi Prabhakar,
On Wed, 3 Sept 2025 at 21:21, Lad, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> On Wed, Sep 3, 2025 at 4:04 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > On Thu, 21 Aug 2025 at 18:19, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > >
> > > Enable USB2.0 support on RZ/T2H and RZ/N2H EVKs.
> > >
> > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > > --- a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
> > > +++ b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
> > > @@ -33,6 +33,33 @@
> > > */
> > > #define SD1_MICRO_SD 1
> > >
> > > +/*
> > > + * USB Pin Configuration:
> > > + *
> > > + * This board is equipped with three USB connectors: Type-A (CN7), Mini-B (CN8),
> > > + * and Micro-AB (CN9). The RZ/N2H SoC has a single USB channel, so either the USB
> > > + * host interface or the USB function interface can be used, but not both at the
> > > + * same time.
> > > + *
> > > + * By default, the Type-A (CN7) and Mini-B (CN8) connectors are enabled.
> > > + * Configure the switches as follows:
> > > + * - P02_2 - P02_3 (control signals for USB power supply): DSW2[6] = OFF;
> >
> > s/DSW2[6]/DSW2[5]/?
> >
> The above is correct,
>
> DSW2[5] is OFF, P00_0 to P00_2 are connected to BSC2(CN43) and GPT0(CN49).
> DSW2[5] is ON, P00_0 to P00_2 are used as control signals for the USB
> power-supply IC.
>
> But we are using P02_2 and P02_3
> DSW2[5] is OFF, P01_0, P01_2, P01_4 to P01_7, and P02_0 to P02_3 are
> connected to ENCIF0(CN44) and GPT0(CN49), and used as control signals
> for the USB power-supply IC.
Thanks, I stand corrected.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
© 2016 - 2025 Red Hat, Inc.