From 396a3529800af0817c6af2eb65c542588a1f7fb7 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 19 Sep 2016 10:43:17 +0200 Subject: [PATCH 01/14] pinctrl: bcm2835: add pull defines to dt bindings Also delete (unused) private enum from driver. The pull defines can be used instead if needed. Signed-off-by: Gerd Hoffmann Signed-off-by: Eric Anholt Acked-by: Linus Walleij Acked-by: Stefan Wahren --- drivers/pinctrl/bcm/pinctrl-bcm2835.c | 6 ------ include/dt-bindings/pinctrl/bcm2835.h | 5 +++++ 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c index fa77165fab2c..4cf612bcfdfa 100644 --- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c @@ -76,12 +76,6 @@ enum bcm2835_pinconf_param { BCM2835_PINCONF_PARAM_PULL, }; -enum bcm2835_pinconf_pull { - BCM2835_PINCONFIG_PULL_NONE, - BCM2835_PINCONFIG_PULL_DOWN, - BCM2835_PINCONFIG_PULL_UP, -}; - #define BCM2835_PINCONF_PACK(_param_, _arg_) ((_param_) << 16 | (_arg_)) #define BCM2835_PINCONF_UNPACK_PARAM(_conf_) ((_conf_) >> 16) #define BCM2835_PINCONF_UNPACK_ARG(_conf_) ((_conf_) & 0xffff) diff --git a/include/dt-bindings/pinctrl/bcm2835.h b/include/dt-bindings/pinctrl/bcm2835.h index 6f0bc37af39c..e4e4fdf5d38f 100644 --- a/include/dt-bindings/pinctrl/bcm2835.h +++ b/include/dt-bindings/pinctrl/bcm2835.h @@ -24,4 +24,9 @@ #define BCM2835_FSEL_ALT2 6 #define BCM2835_FSEL_ALT3 7 +/* brcm,pull property */ +#define BCM2835_PUD_OFF 0 +#define BCM2835_PUD_DOWN 1 +#define BCM2835_PUD_UP 2 + #endif /* __DT_BINDINGS_PINCTRL_BCM2835_H__ */ From 21ff843931b2e5a9b628ac56fd0f2e4355890096 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 19 Sep 2016 10:43:18 +0200 Subject: [PATCH 02/14] ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node. The BCM2835-ARM-Peripherals.pdf documentation specifies what the function selects do for the pins, and there are a bunch of obvious groupings to be made. With these created, we'll be able to replace bcm2835-rpi.dtsi's main "set all of these pins to alt0" with references to specific groups we want enabled. Also add pinctrl groups for emmc and sdhost. Based on patches by Eric Anholt, with fixups by Gerd Hoffmann. Signed-off-by: Gerd Hoffmann Signed-off-by: Eric Anholt Acked-by: Stefan Wahren --- arch/arm/boot/dts/bcm283x.dtsi | 203 +++++++++++++++++++++++++++++++++ 1 file changed, 203 insertions(+) diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi index 46d46d894a44..2123d0eb1890 100644 --- a/arch/arm/boot/dts/bcm283x.dtsi +++ b/arch/arm/boot/dts/bcm283x.dtsi @@ -132,6 +132,209 @@ gpio: gpio@7e200000 { interrupt-controller; #interrupt-cells = <2>; + + /* Defines pin muxing groups according to + * BCM2835-ARM-Peripherals.pdf page 102. + * + * While each pin can have its mux selected + * for various functions individually, some + * groups only make sense to switch to a + * particular function together. + */ + dpi_gpio0: dpi_gpio0 { + brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11 + 12 13 14 15 16 17 18 19 + 20 21 22 23 24 25 26 27>; + brcm,function = ; + }; + emmc_gpio22: emmc_gpio22 { + brcm,pins = <22 23 24 25 26 27>; + brcm,function = ; + }; + emmc_gpio34: emmc_gpio34 { + brcm,pins = <34 35 36 37 38 39>; + brcm,function = ; + brcm,pull = ; + }; + emmc_gpio48: emmc_gpio48 { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = ; + }; + + gpclk0_gpio4: gpclk0_gpio4 { + brcm,pins = <4>; + brcm,function = ; + }; + gpclk1_gpio5: gpclk1_gpio5 { + brcm,pins = <5>; + brcm,function = ; + }; + gpclk1_gpio42: gpclk1_gpio42 { + brcm,pins = <42>; + brcm,function = ; + }; + gpclk1_gpio44: gpclk1_gpio44 { + brcm,pins = <44>; + brcm,function = ; + }; + gpclk2_gpio6: gpclk2_gpio6 { + brcm,pins = <6>; + brcm,function = ; + }; + gpclk2_gpio43: gpclk2_gpio43 { + brcm,pins = <43>; + brcm,function = ; + }; + + i2c0_gpio0: i2c0_gpio0 { + brcm,pins = <0 1>; + brcm,function = ; + }; + i2c0_gpio32: i2c0_gpio32 { + brcm,pins = <32 34>; + brcm,function = ; + }; + i2c0_gpio44: i2c0_gpio44 { + brcm,pins = <44 45>; + brcm,function = ; + }; + i2c1_gpio2: i2c1_gpio2 { + brcm,pins = <2 3>; + brcm,function = ; + }; + i2c1_gpio44: i2c1_gpio44 { + brcm,pins = <44 45>; + brcm,function = ; + }; + i2c_slave_gpio18: i2c_slave_gpio18 { + brcm,pins = <18 19 20 21>; + brcm,function = ; + }; + + jtag_gpio4: jtag_gpio4 { + brcm,pins = <4 5 6 12 13>; + brcm,function = ; + }; + jtag_gpio22: jtag_gpio22 { + brcm,pins = <22 23 24 25 26 27>; + brcm,function = ; + }; + + pcm_gpio18: pcm_gpio18 { + brcm,pins = <18 19 20 21>; + brcm,function = ; + }; + pcm_gpio28: pcm_gpio28 { + brcm,pins = <28 29 30 31>; + brcm,function = ; + }; + + pwm0_gpio12: pwm0_gpio12 { + brcm,pins = <12>; + brcm,function = ; + }; + pwm0_gpio18: pwm0_gpio18 { + brcm,pins = <18>; + brcm,function = ; + }; + pwm0_gpio40: pwm0_gpio40 { + brcm,pins = <40>; + brcm,function = ; + }; + pwm1_gpio13: pwm1_gpio13 { + brcm,pins = <13>; + brcm,function = ; + }; + pwm1_gpio19: pwm1_gpio19 { + brcm,pins = <19>; + brcm,function = ; + }; + pwm1_gpio41: pwm1_gpio41 { + brcm,pins = <41>; + brcm,function = ; + }; + pwm1_gpio45: pwm1_gpio45 { + brcm,pins = <45>; + brcm,function = ; + }; + + sdhost_gpio48: sdhost_gpio48 { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = ; + }; + + spi0_gpio7: spi0_gpio7 { + brcm,pins = <7 8 9 10 11>; + brcm,function = ; + }; + spi0_gpio35: spi0_gpio35 { + brcm,pins = <35 36 37 38 39>; + brcm,function = ; + }; + spi1_gpio16: spi1_gpio16 { + brcm,pins = <16 17 18 19 20 21>; + brcm,function = ; + }; + spi2_gpio40: spi2_gpio40 { + brcm,pins = <40 41 42 43 44 45>; + brcm,function = ; + }; + + uart0_gpio14: uart0_gpio14 { + brcm,pins = <14 15>; + brcm,function = ; + }; + /* Separate from the uart0_gpio14 group + * because it conflicts with spi1_gpio16, and + * people often run uart0 on the two pins + * without flow contrl. + */ + uart0_ctsrts_gpio16: uart0_ctsrts_gpio16 { + brcm,pins = <16 17>; + brcm,function = ; + }; + uart0_gpio30: uart0_gpio30 { + brcm,pins = <30 31>; + brcm,function = ; + }; + uart0_ctsrts_gpio32: uart0_ctsrts_gpio32 { + brcm,pins = <32 33>; + brcm,function = ; + }; + + uart1_gpio14: uart1_gpio14 { + brcm,pins = <14 15>; + brcm,function = ; + }; + uart1_ctsrts_gpio16: uart1_ctsrts_gpio16 { + brcm,pins = <16 17>; + brcm,function = ; + }; + uart1_gpio32: uart1_gpio32 { + brcm,pins = <32 33>; + brcm,function = ; + }; + uart1_ctsrts_gpio30: uart1_ctsrts_gpio30 { + brcm,pins = <30 31>; + brcm,function = ; + }; + uart1_gpio36: uart1_gpio36 { + brcm,pins = <36 37 38 39>; + brcm,function = ; + }; + uart1_gpio40: uart1_gpio40 { + brcm,pins = <40 41>; + brcm,function = ; + }; + uart1_ctsrts_gpio42: uart1_ctsrts_gpio42 { + brcm,pins = <42 43>; + brcm,function = ; + }; }; uart0: serial@7e201000 { From 14e0ea34058ce13794877206f05a6ab5034e147b Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 19 Sep 2016 10:43:19 +0200 Subject: [PATCH 03/14] ARM: dts: bcm283x: add pinctrl group to &pwm, drop pins from &gpio Signed-off-by: Gerd Hoffmann Signed-off-by: Eric Anholt Acked-by: Stefan Wahren --- arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi index e9b47b2bbc33..5663772fc460 100644 --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi @@ -39,7 +39,7 @@ gpioout: gpioout { }; alt0: alt0 { - brcm,pins = <0 1 2 3 4 5 7 8 9 10 11 14 15 40 45>; + brcm,pins = <0 1 2 3 4 5 7 8 9 10 11 14 15>; brcm,function = ; }; @@ -69,6 +69,8 @@ &sdhci { }; &pwm { + pinctrl-names = "default"; + pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>; status = "okay"; }; From e6e199712008374edb4de979e74ae5acb1f40845 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 19 Sep 2016 10:43:20 +0200 Subject: [PATCH 04/14] ARM: dts: bcm283x: add pinctrl group to &i2c0, drop pins from &gpio Signed-off-by: Gerd Hoffmann Signed-off-by: Eric Anholt Acked-by: Stefan Wahren --- arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi index 5663772fc460..096891fd7047 100644 --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi @@ -39,7 +39,7 @@ gpioout: gpioout { }; alt0: alt0 { - brcm,pins = <0 1 2 3 4 5 7 8 9 10 11 14 15>; + brcm,pins = <2 3 4 5 7 8 9 10 11 14 15>; brcm,function = ; }; @@ -50,6 +50,8 @@ alt3: alt3 { }; &i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_gpio0>; status = "okay"; clock-frequency = <100000>; }; From 4eb65cbfa721db9d7bbe2f76e8b1909fa0320273 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 19 Sep 2016 10:43:21 +0200 Subject: [PATCH 05/14] ARM: dts: bcm283x: add pinctrl group to &i2c1, drop pins from &gpio Signed-off-by: Gerd Hoffmann Signed-off-by: Eric Anholt --- arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi index 096891fd7047..8b3ff38cc4ba 100644 --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi @@ -39,7 +39,7 @@ gpioout: gpioout { }; alt0: alt0 { - brcm,pins = <2 3 4 5 7 8 9 10 11 14 15>; + brcm,pins = <4 5 7 8 9 10 11 14 15>; brcm,function = ; }; @@ -57,6 +57,8 @@ &i2c0 { }; &i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_gpio2>; status = "okay"; clock-frequency = <100000>; }; From f8bef3619bb219ed27dfe11cd20547e5b709650a Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 19 Sep 2016 10:43:22 +0200 Subject: [PATCH 06/14] ARM: dts: bcm283x: add pinctrl group to &sdhci, drop pins from &gpio Signed-off-by: Gerd Hoffmann Signed-off-by: Eric Anholt Acked-by: Stefan Wahren --- arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi index 8b3ff38cc4ba..7c63e667425f 100644 --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi @@ -44,7 +44,7 @@ alt0: alt0 { }; alt3: alt3 { - brcm,pins = <48 49 50 51 52 53>; + brcm,pins = <>; brcm,function = ; }; }; @@ -68,6 +68,8 @@ &i2c2 { }; &sdhci { + pinctrl-names = "default"; + pinctrl-0 = <&emmc_gpio48>; status = "okay"; bus-width = <4>; }; From a6d962aeb22fbf73c023334bdf55dc45c9fd7dba Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 19 Sep 2016 10:43:23 +0200 Subject: [PATCH 07/14] ARM: dts: bcm283x: drop alt3 from &gpio As the alt3 group has no pins left drop it from &gpio. Signed-off-by: Gerd Hoffmann Signed-off-by: Eric Anholt Acked-by: Stefan Wahren --- arch/arm/boot/dts/bcm2835-rpi-a-plus.dts | 2 +- arch/arm/boot/dts/bcm2835-rpi-a.dts | 2 +- arch/arm/boot/dts/bcm2835-rpi-b-plus.dts | 2 +- arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts | 2 +- arch/arm/boot/dts/bcm2835-rpi-b.dts | 2 +- arch/arm/boot/dts/bcm2835-rpi-zero.dts | 2 +- arch/arm/boot/dts/bcm2835-rpi.dtsi | 5 ----- arch/arm/boot/dts/bcm2836-rpi-2-b.dts | 2 +- 8 files changed, 7 insertions(+), 12 deletions(-) diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts index f7f9db355d98..21507c922783 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts @@ -22,7 +22,7 @@ pwr { }; &gpio { - pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>; + pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; /* I2S interface */ i2s_alt0: i2s_alt0 { diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts index 8be102f5d826..5afba0900449 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-a.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts @@ -15,7 +15,7 @@ act { }; &gpio { - pinctrl-0 = <&gpioout &alt0 &i2s_alt2 &alt3>; + pinctrl-0 = <&gpioout &alt0 &i2s_alt2>; /* I2S interface */ i2s_alt2: i2s_alt2 { diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts index 35cde65c975e..38f66aa244fe 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts @@ -23,7 +23,7 @@ pwr { }; &gpio { - pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>; + pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; /* I2S interface */ i2s_alt0: i2s_alt0 { diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts index 84df85ea6296..75e045aba7ce 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts @@ -16,7 +16,7 @@ act { }; &gpio { - pinctrl-0 = <&gpioout &alt0 &i2s_alt2 &alt3>; + pinctrl-0 = <&gpioout &alt0 &i2s_alt2>; /* I2S interface */ i2s_alt2: i2s_alt2 { diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts index 8e626a80fe24..76a254b3219a 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts @@ -16,7 +16,7 @@ act { }; &gpio { - pinctrl-0 = <&gpioout &alt0 &alt3>; + pinctrl-0 = <&gpioout &alt0>; }; &hdmi { diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts index 60e359fafc5b..7c1c18048948 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts @@ -26,7 +26,7 @@ act { }; &gpio { - pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>; + pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; /* I2S interface */ i2s_alt0: i2s_alt0 { diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi index 7c63e667425f..6ddf7dfe3f72 100644 --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi @@ -42,11 +42,6 @@ alt0: alt0 { brcm,pins = <4 5 7 8 9 10 11 14 15>; brcm,function = ; }; - - alt3: alt3 { - brcm,pins = <>; - brcm,function = ; - }; }; &i2c0 { diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts index 39dccf62ac96..bf19e8cfb9e6 100644 --- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts +++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts @@ -27,7 +27,7 @@ pwr { }; &gpio { - pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>; + pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; /* I2S interface */ i2s_alt0: i2s_alt0 { From 3435bbf28ae3b10c403bec4b042d4a17e3c44052 Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Wed, 26 Oct 2016 18:13:59 +0000 Subject: [PATCH 08/14] DT: binding: bcm2835-mbox: fix address typo in example MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The address of the mailbox node in the example has a typo. So fix it accordingly. Signed-off-by: Stefan Wahren Fixes: d4b5c782b9f4 ("dt/bindings: Add binding for the BCM2835 mailbox driver") Acked-by: Rob Herring Reviewed-by: Andreas Färber Signed-off-by: Eric Anholt --- Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt b/Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt index e893615ef635..b48d7d30012c 100644 --- a/Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt +++ b/Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt @@ -12,7 +12,7 @@ Required properties: Example: -mailbox: mailbox@7e00b800 { +mailbox: mailbox@7e00b880 { compatible = "brcm,bcm2835-mbox"; reg = <0x7e00b880 0x40>; interrupts = <0 1>; From 7d891a685dd46b925cf25b74ada0280a2531c34f Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Sun, 30 Oct 2016 17:22:19 +0000 Subject: [PATCH 09/14] ARM: dts: bcm283x: fix typo in mailbox address MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The address of the mailbox node in the bcm283x.dtsi also has a typo. So fix it accordingly. Signed-off-by: Stefan Wahren Reviewed-by: Andreas Färber Fixes: 05b682b7a3b2 ("ARM: bcm2835: dt: Add the mailbox to the device tree") Signed-off-by: Eric Anholt --- arch/arm/boot/dts/bcm283x.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi index 2123d0eb1890..eae6ab88d1a6 100644 --- a/arch/arm/boot/dts/bcm283x.dtsi +++ b/arch/arm/boot/dts/bcm283x.dtsi @@ -104,7 +104,7 @@ rng@7e104000 { reg = <0x7e104000 0x10>; }; - mailbox: mailbox@7e00b800 { + mailbox: mailbox@7e00b880 { compatible = "brcm,bcm2835-mbox"; reg = <0x7e00b880 0x40>; interrupts = <0 1>; From 1567e95a010b7e0adbfacbf3c5d863e7850fdc28 Mon Sep 17 00:00:00 2001 From: Martin Sperl Date: Wed, 2 Nov 2016 10:18:21 +0000 Subject: [PATCH 10/14] dt: bindings: add thermal device driver for bcm2835 Add dt-binding documentation for bcm2835 SOC thermal sensor. Signed-off-by: Martin Sperl Acked-by: Eric Anholt Acked-by: Rob Herring Changelog: V1 -> V2: renamed file to follow naming conventions V2 -> V3: removed 0x in node name Signed-off-by: Eric Anholt --- .../bindings/thermal/brcm,bcm2835-thermal.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/brcm,bcm2835-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/brcm,bcm2835-thermal.txt b/Documentation/devicetree/bindings/thermal/brcm,bcm2835-thermal.txt new file mode 100644 index 000000000000..474531d2b2c5 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/brcm,bcm2835-thermal.txt @@ -0,0 +1,17 @@ +Binding for Thermal Sensor driver for BCM2835 SoCs. + +Required parameters: +------------------- + +compatible: should be one of: "brcm,bcm2835-thermal", + "brcm,bcm2836-thermal" or "brcm,bcm2837-thermal" +reg: Address range of the thermal registers. +clocks: Phandle of the clock used by the thermal sensor. + +Example: + +thermal: thermal@7e212000 { + compatible = "brcm,bcm2835-thermal"; + reg = <0x7e212000 0x8>; + clocks = <&clocks BCM2835_CLOCK_TSENS>; +}; From 43bac4133f405b67857e4c985aecc44a57233bfe Mon Sep 17 00:00:00 2001 From: Martin Sperl Date: Wed, 2 Nov 2016 10:18:23 +0000 Subject: [PATCH 11/14] ARM: bcm2835: dts: add thermal node to device-tree of bcm283x Add the node for the thermal sensor of the bcm2835-soc to the device tree. Signed-off-by: Martin Sperl Reviewed-by: Eric Anholt Acked-by: Stefan Wahren Changelog: V1 -> V5: generic settings is shared in bcm283x.dtsi, but disabled moved the compatible string to the SOC specific dtsi for arm and arm64 V5 -> V6: fix remove 0x prefix from thermal@0x7e212000 Note: there is no arm/boot/dts/bcm2837.dtsi as of now, so the 32-bit rpi3 dt is not modified. Signed-off-by: Eric Anholt --- arch/arm/boot/dts/bcm2835.dtsi | 6 ++++++ arch/arm/boot/dts/bcm2836.dtsi | 6 ++++++ arch/arm/boot/dts/bcm283x.dtsi | 7 +++++++ 3 files changed, 19 insertions(+) diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi index a78759e73710..0890d97e674d 100644 --- a/arch/arm/boot/dts/bcm2835.dtsi +++ b/arch/arm/boot/dts/bcm2835.dtsi @@ -23,3 +23,9 @@ arm-pmu { }; }; }; + +/* enable thermal sensor with the correct compatible property set */ +&thermal { + compatible = "brcm,bcm2835-thermal"; + status = "okay"; +}; diff --git a/arch/arm/boot/dts/bcm2836.dtsi b/arch/arm/boot/dts/bcm2836.dtsi index 9d0651d8f373..519a44f5d25a 100644 --- a/arch/arm/boot/dts/bcm2836.dtsi +++ b/arch/arm/boot/dts/bcm2836.dtsi @@ -76,3 +76,9 @@ &intc { interrupt-parent = <&local_intc>; interrupts = <8>; }; + +/* enable thermal sensor with the correct compatible property set */ +&thermal { + compatible = "brcm,bcm2836-thermal"; + status = "okay"; +}; diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi index eae6ab88d1a6..9a44da190897 100644 --- a/arch/arm/boot/dts/bcm283x.dtsi +++ b/arch/arm/boot/dts/bcm283x.dtsi @@ -390,6 +390,13 @@ pixelvalve@7e207000 { interrupts = <2 14>; /* pwa1 */ }; + thermal: thermal@7e212000 { + compatible = "brcm,bcm2835-thermal"; + reg = <0x7e212000 0x8>; + clocks = <&clocks BCM2835_CLOCK_TSENS>; + status = "disabled"; + }; + aux: aux@0x7e215000 { compatible = "brcm,bcm2835-aux"; #clock-cells = <1>; From 731b26a6ac17f24057c559361c6d0cb7cb79baed Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 6 Oct 2016 13:15:02 +0200 Subject: [PATCH 12/14] ARM: bcm2835: Add names for the Raspberry Pi GPIO lines The idea is to give useful names to GPIO lines that an implementer will be using from userspace, e.g. for maker type projects. These are user-visible using tools/gpio/lsgpio.c v2: Major rewrite by anholt: Flatten each GPIO line to a line in the file for better diffing, prefix all expansion header pins with "P" or "P5HEADER_P" and drop the mostly-unused GPIO_GEN names in favor of GPIO, fix extra '[]' on a couple of lines, fix locations of SD_CARD_DETECT, CAM_GPIO and STATUS_LED, fix HDMI_HPD polarities, rewrite A+ using unreleased schematics. v3: More changes by anholt: Drop P / P5HEADER prefixes. I had been skeptical about adding them, and was convinced to drop them by Gottfried (who probably has more experience with GPIOs in educational contexts than the rest of us). Also drop [] brackets for "is pinmuxed", which didn't seem to clarify, and were ambiguous for things like the SPI_*-labeled pins which may or may not actually be pinmuxed to SPI. v4: Rename B+'s SDA0/SCL0 to match the other boards, despite the naming on its schematic. Signed-off-by: Linus Walleij Signed-off-by: Eric Anholt --- arch/arm/boot/dts/bcm2835-rpi-a-plus.dts | 65 +++++++++++++++++++++++ arch/arm/boot/dts/bcm2835-rpi-a.dts | 67 ++++++++++++++++++++++++ arch/arm/boot/dts/bcm2835-rpi-b-plus.dts | 66 +++++++++++++++++++++++ arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts | 66 +++++++++++++++++++++++ arch/arm/boot/dts/bcm2835-rpi-b.dts | 67 ++++++++++++++++++++++++ 5 files changed, 331 insertions(+) diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts index 21507c922783..5a22c7965f34 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts @@ -22,6 +22,71 @@ pwr { }; &gpio { + /* + * This is based on the unreleased schematic for the Model A+. + * + * Legend: + * "NC" = not connected (no rail from the SoC) + * "FOO" = GPIO line named "FOO" on the schematic + * "FOO_N" = GPIO line named "FOO" on schematic, active low + */ + gpio-line-names = "SDA0", + "SCL0", + "SDA1", + "SCL1", + "GPIO_GCLK", + "GPIO5", + "GPIO6", + "SPI_CE1_N", + "SPI_CE0_N", + "SPI_MISO", + "SPI_MOSI", + "SPI_SCLK", + "GPIO12", + "GPIO13", + /* Serial port */ + "TXD0", + "RXD0", + "GPIO16", + "GPIO17", + "GPIO18", + "GPIO19", + "GPIO20", + "GPIO21", + "GPIO22", + "GPIO23", + "GPIO24", + "GPIO25", + "GPIO26", + "GPIO27", + "SDA0", + "SCL0", + "NC", /* GPIO30 */ + "NC", /* GPIO31 */ + "NC", /* GPIO32 */ + "NC", /* GPIO33 */ + "NC", /* GPIO34 */ + "PWR_LOW_N", /* GPIO35 */ + "NC", /* GPIO36 */ + "NC", /* GPIO37 */ + "NC", /* GPIO38 */ + "NC", /* GPIO39 */ + "PWM0_OUT", /* GPIO40 */ + "CAM_GPIO0", /* GPIO41 */ + "NC", /* GPIO42 */ + "NC", /* GPIO43 */ + "NC", /* GPIO44 */ + "PWM1_OUT", /* GPIO45 */ + "HDMI_HPD_N", + "STATUS_LED", + /* Used by SD Card */ + "SD_CLK_R", + "SD_CMD_R", + "SD_DATA0_R", + "SD_DATA1_R", + "SD_DATA2_R", + "SD_DATA3_R"; + pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; /* I2S interface */ diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts index 5afba0900449..54f98c59a75d 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-a.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts @@ -15,6 +15,73 @@ act { }; &gpio { + /* + * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf + * RPI00021 sheet 02 + * + * Legend: + * "NC" = not connected (no rail from the SoC) + * "FOO" = GPIO line named "FOO" on the schematic + * "FOO_N" = GPIO line named "FOO" on schematic, active low + */ + gpio-line-names = "SDA0", + "SCL0", + "SDA1", + "SCL1", + "GPIO_GCLK", + "CAM_CLK", + "LAN_RUN", + "SPI_CE1_N", + "SPI_CE0_N", + "SPI_MISO", + "SPI_MOSI", + "SPI_SCLK", + "NC", /* GPIO12 */ + "NC", /* GPIO13 */ + /* Serial port */ + "TXD0", + "RXD0", + "STATUS_LED_N", + "GPIO17", + "GPIO18", + "NC", /* GPIO19 */ + "NC", /* GPIO20 */ + "GPIO21", + "GPIO22", + "GPIO23", + "GPIO24", + "GPIO25", + "NC", /* GPIO26 */ + "CAM_GPIO", + /* Binary number representing build/revision */ + "CONFIG0", + "CONFIG1", + "CONFIG2", + "CONFIG3", + "NC", /* GPIO32 */ + "NC", /* GPIO33 */ + "NC", /* GPIO34 */ + "NC", /* GPIO35 */ + "NC", /* GPIO36 */ + "NC", /* GPIO37 */ + "NC", /* GPIO38 */ + "NC", /* GPIO39 */ + "PWM0_OUT", + "NC", /* GPIO41 */ + "NC", /* GPIO42 */ + "NC", /* GPIO43 */ + "NC", /* GPIO44 */ + "PWM1_OUT", + "HDMI_HPD_P", + "SD_CARD_DET", + /* Used by SD Card */ + "SD_CLK_R", + "SD_CMD_R", + "SD_DATA0_R", + "SD_DATA1_R", + "SD_DATA2_R", + "SD_DATA3_R"; + pinctrl-0 = <&gpioout &alt0 &i2s_alt2>; /* I2S interface */ diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts index 38f66aa244fe..b67587e6cbef 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts @@ -23,6 +23,72 @@ pwr { }; &gpio { + /* + * Taken from Raspberry-Pi-B-Plus-V1.2-Schematics.pdf + * RPI-BPLUS sheet 1 + * + * Legend: + * "NC" = not connected (no rail from the SoC) + * "FOO" = GPIO line named "FOO" on the schematic + * "FOO_N" = GPIO line named "FOO" on schematic, active low + */ + gpio-line-names = "SDA0", + "SCL0", + "SDA1", + "SCL1", + "GPIO_GCLK", + "GPIO5", + "GPIO6", + "SPI_CE1_N", + "SPI_CE0_N", + "SPI_MISO", + "SPI_MOSI", + "SPI_SCLK", + "GPIO12", + "GPIO13", + /* Serial port */ + "TXD0", + "RXD0", + "GPIO16", + "GPIO17", + "GPIO18", + "GPIO19", + "GPIO20", + "GPIO21", + "GPIO22", + "GPIO23", + "GPIO24", + "GPIO25", + "GPIO26", + "GPIO27", + "SDA0", + "SCL0", + "NC", /* GPIO30 */ + "LAN_RUN", /* GPIO31 */ + "CAM_GPIO1", /* GPIO32 */ + "NC", /* GPIO33 */ + "NC", /* GPIO34 */ + "PWR_LOW_N", /* GPIO35 */ + "NC", /* GPIO36 */ + "NC", /* GPIO37 */ + "NC", /* GPIO38 */ + "NC", /* GPIO39 */ + "PWM0_OUT", /* GPIO40 */ + "CAM_GPIO0", /* GPIO41 */ + "NC", /* GPIO42 */ + "NC", /* GPIO43 */ + "ETHCLK", /* GPIO44 */ + "PWM1_OUT", /* GPIO45 */ + "HDMI_HPD_N", + "STATUS_LED", + /* Used by SD Card */ + "SD_CLK_R", + "SD_CMD_R", + "SD_DATA0_R", + "SD_DATA1_R", + "SD_DATA2_R", + "SD_DATA3_R"; + pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; /* I2S interface */ diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts index 75e045aba7ce..4133bc2cd9be 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts @@ -16,6 +16,72 @@ act { }; &gpio { + /* + * Taken from Raspberry-Pi-Rev-2.0-Model-AB-Schematics.pdf + * RPI00022 sheet 02 + * + * Legend: + * "NC" = not connected (no rail from the SoC) + * "FOO" = GPIO line named "FOO" on the schematic + * "FOO_N" = GPIO line named "FOO" on schematic, active low + */ + gpio-line-names = "SDA0", + "SCL0", + "SDA1", + "SCL1", + "GPIO_GCLK", + "CAM_CLK", + "LAN_RUN", + "SPI_CE1_N", + "SPI_CE0_N", + "SPI_MISO", + "SPI_MOSI", + "SPI_SCLK", + "NC", /* GPIO12 */ + "NC", /* GPIO13 */ + /* Serial port */ + "TXD0", + "RXD0", + "STATUS_LED_N", + "GPIO17", + "GPIO18", + "NC", /* GPIO19 */ + "NC", /* GPIO20 */ + "CAM_GPIO", + "GPIO22", + "GPIO23", + "GPIO24", + "GPIO25", + "NC", /* GPIO26 */ + "GPIO27", + "GPIO28", + "GPIO29", + "GPIO30", + "GPIO31", + "NC", /* GPIO32 */ + "NC", /* GPIO33 */ + "NC", /* GPIO34 */ + "NC", /* GPIO35 */ + "NC", /* GPIO36 */ + "NC", /* GPIO37 */ + "NC", /* GPIO38 */ + "NC", /* GPIO39 */ + "PWM0_OUT", + "NC", /* GPIO41 */ + "NC", /* GPIO42 */ + "NC", /* GPIO43 */ + "NC", /* GPIO44 */ + "PWM1_OUT", + "HDMI_HPD_P", + "SD_CARD_DET", + /* Used by SD Card */ + "SD_CLK_R", + "SD_CMD_R", + "SD_DATA0_R", + "SD_DATA1_R", + "SD_DATA2_R", + "SD_DATA3_R"; + pinctrl-0 = <&gpioout &alt0 &i2s_alt2>; /* I2S interface */ diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts index 76a254b3219a..71f50e16c646 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts @@ -16,6 +16,73 @@ act { }; &gpio { + /* + * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf + * RPI00021 sheet 02 + * + * Legend: + * "NC" = not connected (no rail from the SoC) + * "FOO" = GPIO line named "FOO" on the schematic + * "FOO_N" = GPIO line named "FOO" on schematic, active low + */ + gpio-line-names = "SDA0", + "SCL0", + "SDA1", + "SCL1", + "GPIO_GCLK", + "CAM_CLK", + "LAN_RUN", + "SPI_CE1_N", + "SPI_CE0_N", + "SPI_MISO", + "SPI_MOSI", + "SPI_SCLK", + "NC", /* GPIO12 */ + "NC", /* GPIO13 */ + /* Serial port */ + "TXD0", + "RXD0", + "STATUS_LED_N", + "GPIO17", + "GPIO18", + "NC", /* GPIO19 */ + "NC", /* GPIO20 */ + "GPIO21", + "GPIO22", + "GPIO23", + "GPIO24", + "GPIO25", + "NC", /* GPIO26 */ + "CAM_GPIO", + /* Binary number representing build/revision */ + "CONFIG0", + "CONFIG1", + "CONFIG2", + "CONFIG3", + "NC", /* GPIO32 */ + "NC", /* GPIO33 */ + "NC", /* GPIO34 */ + "NC", /* GPIO35 */ + "NC", /* GPIO36 */ + "NC", /* GPIO37 */ + "NC", /* GPIO38 */ + "NC", /* GPIO39 */ + "PWM0_OUT", + "NC", /* GPIO41 */ + "NC", /* GPIO42 */ + "NC", /* GPIO43 */ + "NC", /* GPIO44 */ + "PWM1_OUT", + "HDMI_HPD_P", + "SD_CARD_DET", + /* Used by SD Card */ + "SD_CLK_R", + "SD_CMD_R", + "SD_DATA0_R", + "SD_DATA1_R", + "SD_DATA2_R", + "SD_DATA3_R"; + pinctrl-0 = <&gpioout &alt0>; }; From 6b9170887e1b912b657dab4597f8b44ae4dbdf50 Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Wed, 16 Nov 2016 17:52:06 +0000 Subject: [PATCH 13/14] ARM: bcm2835: Fix names for the Raspberry Pi GPIO lines There are some differences between the schematics and the official firmware DTS [1]. So based on these additional information the following has been changed: * use consistent "CAM_GPIO1" for camera LED * use consistent "CAM_GPIO0" for camera shutdown * add "USB_LIMIT" for USB current limit (0=600mA, 1=1200mA) [1] - https://github.com/raspberrypi/firmware/blob/master/extra/dt-blob.dts Signed-off-by: Stefan Wahren Signed-off-by: Eric Anholt --- arch/arm/boot/dts/bcm2835-rpi-a-plus.dts | 4 ++-- arch/arm/boot/dts/bcm2835-rpi-a.dts | 4 ++-- arch/arm/boot/dts/bcm2835-rpi-b-plus.dts | 2 +- arch/arm/boot/dts/bcm2835-rpi-b.dts | 4 ++-- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts index 5a22c7965f34..d0704540db6b 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts @@ -63,13 +63,13 @@ &gpio { "SCL0", "NC", /* GPIO30 */ "NC", /* GPIO31 */ - "NC", /* GPIO32 */ + "CAM_GPIO1", /* GPIO32 */ "NC", /* GPIO33 */ "NC", /* GPIO34 */ "PWR_LOW_N", /* GPIO35 */ "NC", /* GPIO36 */ "NC", /* GPIO37 */ - "NC", /* GPIO38 */ + "USB_LIMIT", /* GPIO38 */ "NC", /* GPIO39 */ "PWM0_OUT", /* GPIO40 */ "CAM_GPIO0", /* GPIO41 */ diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts index 54f98c59a75d..46d078e29017 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-a.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts @@ -29,7 +29,7 @@ &gpio { "SDA1", "SCL1", "GPIO_GCLK", - "CAM_CLK", + "CAM_GPIO1", "LAN_RUN", "SPI_CE1_N", "SPI_CE0_N", @@ -52,7 +52,7 @@ &gpio { "GPIO24", "GPIO25", "NC", /* GPIO26 */ - "CAM_GPIO", + "CAM_GPIO0", /* Binary number representing build/revision */ "CONFIG0", "CONFIG1", diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts index b67587e6cbef..432088ebb0a1 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts @@ -71,7 +71,7 @@ &gpio { "PWR_LOW_N", /* GPIO35 */ "NC", /* GPIO36 */ "NC", /* GPIO37 */ - "NC", /* GPIO38 */ + "USB_LIMIT", /* GPIO38 */ "NC", /* GPIO39 */ "PWM0_OUT", /* GPIO40 */ "CAM_GPIO0", /* GPIO41 */ diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts index 71f50e16c646..4d56fe3006b0 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts @@ -30,7 +30,7 @@ &gpio { "SDA1", "SCL1", "GPIO_GCLK", - "CAM_CLK", + "CAM_GPIO1", "LAN_RUN", "SPI_CE1_N", "SPI_CE0_N", @@ -53,7 +53,7 @@ &gpio { "GPIO24", "GPIO25", "NC", /* GPIO26 */ - "CAM_GPIO", + "CAM_GPIO0", /* Binary number representing build/revision */ "CONFIG0", "CONFIG1", From 3a1689ea752436917c5ce4487527ed6c444630ee Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Wed, 16 Nov 2016 17:52:07 +0000 Subject: [PATCH 14/14] ARM: bcm2835: Add names for the RPi Zero GPIO lines This adds the GPIO names for the Raspberry Pi Zero. The GPIO lines of the RPi Zero are almost identical to the Model A+ except: * GPIO 35, 38, 40 and 45 are not connected * Status LED is active low Signed-off-by: Stefan Wahren Signed-off-by: Eric Anholt --- arch/arm/boot/dts/bcm2835-rpi-zero.dts | 65 ++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts index 7c1c18048948..cc8b832c4c78 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts @@ -26,6 +26,71 @@ act { }; &gpio { + /* + * This is based on the official GPU firmware DT blob. + * + * Legend: + * "NC" = not connected (no rail from the SoC) + * "FOO" = GPIO line named "FOO" on the schematic + * "FOO_N" = GPIO line named "FOO" on schematic, active low + */ + gpio-line-names = "SDA0", + "SCL0", + "SDA1", + "SCL1", + "GPIO_GCLK", + "GPIO5", + "GPIO6", + "SPI_CE1_N", + "SPI_CE0_N", + "SPI_MISO", + "SPI_MOSI", + "SPI_SCLK", + "GPIO12", + "GPIO13", + /* Serial port */ + "TXD0", + "RXD0", + "GPIO16", + "GPIO17", + "GPIO18", + "GPIO19", + "GPIO20", + "GPIO21", + "GPIO22", + "GPIO23", + "GPIO24", + "GPIO25", + "GPIO26", + "GPIO27", + "SDA0", + "SCL0", + "NC", /* GPIO30 */ + "NC", /* GPIO31 */ + "CAM_GPIO1", /* GPIO32 */ + "NC", /* GPIO33 */ + "NC", /* GPIO34 */ + "NC", /* GPIO35 */ + "NC", /* GPIO36 */ + "NC", /* GPIO37 */ + "NC", /* GPIO38 */ + "NC", /* GPIO39 */ + "NC", /* GPIO40 */ + "CAM_GPIO0", /* GPIO41 */ + "NC", /* GPIO42 */ + "NC", /* GPIO43 */ + "NC", /* GPIO44 */ + "NC", /* GPIO45 */ + "HDMI_HPD_N", + "STATUS_LED_N", + /* Used by SD Card */ + "SD_CLK_R", + "SD_CMD_R", + "SD_DATA0_R", + "SD_DATA1_R", + "SD_DATA2_R", + "SD_DATA3_R"; + pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; /* I2S interface */