From b3a15f6d55fb584dd4d8baac5d1b6a398720620c Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 19 Apr 2016 13:24:14 -0700 Subject: [PATCH 1/4] drm/vc4: Kick out the simplefb framebuffer before we set up KMS. If we don't, then simplefb stays loaded on /dev/fb0 even though scanout isn't happening from simplefb's memory area any more, and you end up with no console. Signed-off-by: Eric Anholt Acked-by: Dave Airlie --- drivers/gpu/drm/vc4/vc4_drv.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index b7d2ff0e6e1f..109b10651959 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -153,6 +153,24 @@ static void vc4_match_add_drivers(struct device *dev, } } +static void vc4_kick_out_firmware_fb(void) +{ + struct apertures_struct *ap; + + ap = alloc_apertures(1); + if (!ap) + return; + + /* Since VC4 is a UMA device, the simplefb node may have been + * located anywhere in memory. + */ + ap->ranges[0].base = 0; + ap->ranges[0].size = ~0; + + remove_conflicting_framebuffers(ap, "vc4drmfb", false); + kfree(ap); +} + static int vc4_drm_bind(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); @@ -186,6 +204,8 @@ static int vc4_drm_bind(struct device *dev) if (ret) goto gem_destroy; + vc4_kick_out_firmware_fb(); + ret = drm_dev_register(drm, 0); if (ret < 0) goto unbind_all; From 49ac67e0c39cd268371e63ce0662ecb59a164a20 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 2 Mar 2015 14:36:16 -0800 Subject: [PATCH 2/4] ARM: bcm2835: Add VC4 to the device tree. VC4 is the GPU (display and 3D) present on the 283x. Signed-off-by: Eric Anholt Acked-by: Stephen Warren --- 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 | 4 ++ arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts | 4 ++ arch/arm/boot/dts/bcm2835-rpi-b.dts | 4 ++ arch/arm/boot/dts/bcm2835-rpi.dtsi | 9 +++++ arch/arm/boot/dts/bcm2836-rpi-2-b.dts | 4 ++ arch/arm/boot/dts/bcm283x.dtsi | 47 ++++++++++++++++++++++++ 8 files changed, 80 insertions(+) diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts index 228614ffff44..35ff4e7a4aac 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts @@ -29,3 +29,7 @@ i2s_alt0: i2s_alt0 { brcm,function = ; }; }; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; +}; diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts index ddbbbbd42dda..306a84ee9898 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-a.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts @@ -22,3 +22,7 @@ i2s_alt2: i2s_alt2 { brcm,function = ; }; }; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; +}; diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts index ef5405025223..57d313b6afaf 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts @@ -29,3 +29,7 @@ i2s_alt0: i2s_alt0 { brcm,function = ; }; }; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; +}; diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts index 86f1f2f598a7..cf2774ec0834 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts @@ -22,3 +22,7 @@ i2s_alt2: i2s_alt2 { brcm,function = ; }; }; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; +}; diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts index 4859e9d81b23..8b15f9c35643 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts @@ -16,3 +16,7 @@ act { &gpio { pinctrl-0 = <&gpioout &alt0 &alt3>; }; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; +}; diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi index 76bdbcafab18..caf2707680c1 100644 --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi @@ -74,3 +74,12 @@ &pwm { &usb { power-domains = <&power RPI_POWER_DOMAIN_USB>; }; + +&v3d { + power-domains = <&power RPI_POWER_DOMAIN_V3D>; +}; + +&hdmi { + power-domains = <&power RPI_POWER_DOMAIN_HDMI>; + status = "okay"; +}; diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts index ff946661bd13..c4743f42237b 100644 --- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts +++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts @@ -33,3 +33,7 @@ i2s_alt0: i2s_alt0 { brcm,function = ; }; }; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; +}; diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi index 8aaf193711bf..31cc2f2ef040 100644 --- a/arch/arm/boot/dts/bcm283x.dtsi +++ b/arch/arm/boot/dts/bcm283x.dtsi @@ -1,6 +1,7 @@ #include #include #include +#include #include "skeleton.dtsi" /* This include file covers the common peripherals and configuration between @@ -153,6 +154,18 @@ i2c0: i2c@7e205000 { status = "disabled"; }; + pixelvalve@7e206000 { + compatible = "brcm,bcm2835-pixelvalve0"; + reg = <0x7e206000 0x100>; + interrupts = <2 13>; /* pwa0 */ + }; + + pixelvalve@7e207000 { + compatible = "brcm,bcm2835-pixelvalve1"; + reg = <0x7e207000 0x100>; + interrupts = <2 14>; /* pwa1 */ + }; + aux: aux@0x7e215000 { compatible = "brcm,bcm2835-aux"; #clock-cells = <1>; @@ -206,6 +219,12 @@ sdhci: sdhci@7e300000 { status = "disabled"; }; + hvs@7e400000 { + compatible = "brcm,bcm2835-hvs"; + reg = <0x7e400000 0x6000>; + interrupts = <2 1>; + }; + i2c1: i2c@7e804000 { compatible = "brcm,bcm2835-i2c"; reg = <0x7e804000 0x1000>; @@ -226,11 +245,39 @@ i2c2: i2c@7e805000 { status = "disabled"; }; + pixelvalve@7e807000 { + compatible = "brcm,bcm2835-pixelvalve2"; + reg = <0x7e807000 0x100>; + interrupts = <2 10>; /* pixelvalve */ + }; + + hdmi: hdmi@7e902000 { + compatible = "brcm,bcm2835-hdmi"; + reg = <0x7e902000 0x600>, + <0x7e808000 0x100>; + interrupts = <2 8>, <2 9>; + ddc = <&i2c2>; + clocks = <&clocks BCM2835_PLLH_PIX>, + <&clocks BCM2835_CLOCK_HSM>; + clock-names = "pixel", "hdmi"; + status = "disabled"; + }; + usb: usb@7e980000 { compatible = "brcm,bcm2835-usb"; reg = <0x7e980000 0x10000>; interrupts = <1 9>; }; + + v3d: v3d@7ec00000 { + compatible = "brcm,bcm2835-v3d"; + reg = <0x7ec00000 0x1000>; + interrupts = <1 10>; + }; + + vc4: gpu { + compatible = "brcm,bcm2835-vc4"; + }; }; clocks { From 1b2f8973c3bda7a100a8f3e1b4bc1c8ea9bf92d8 Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Thu, 31 Mar 2016 17:25:17 +0000 Subject: [PATCH 3/4] ARM: bcm2835: add CPU node for ARM core This patch adds the CPU node of the BCM2835 into the DT. Signed-off-by: Stefan Wahren Acked-by: Mark Rutland Acked-by: Stephen Warren Reviewed-by: Eric Anholt --- arch/arm/boot/dts/bcm2835.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi index b83b32639358..a78759e73710 100644 --- a/arch/arm/boot/dts/bcm2835.dtsi +++ b/arch/arm/boot/dts/bcm2835.dtsi @@ -3,6 +3,17 @@ / { compatible = "brcm,bcm2835"; + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + device_type = "cpu"; + compatible = "arm,arm1176jzf-s"; + reg = <0x0>; + }; + }; + soc { ranges = <0x7e000000 0x20000000 0x02000000>; dma-ranges = <0x40000000 0x00000000 0x20000000>; From 896ad420db8d5ec4cc4727b786d15e28eb59b366 Mon Sep 17 00:00:00 2001 From: Martin Sperl Date: Sat, 5 Mar 2016 18:02:49 +0000 Subject: [PATCH 4/4] dt/bindings: bcm2835: correct description for DMA-int Interrupt DMA11 is the shared interrupt for DMA channels 11 to 14 Interrupt DMA12 is the shared interrupt triggering for any DMA channel (this also includes DMA channel 15) Signed-off-by: Martin Sperl Reviewed-by: Eric Anholt Acked-by: Rob Herring --- .../bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt index 2d6c8bb4d827..6428a6ba9f4a 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt @@ -71,8 +71,8 @@ Bank 1: 24: DMA8 25: DMA9 26: DMA10 -27: DMA11 -28: DMA12 +27: DMA11-14 - shared interrupt for DMA 11 to 14 +28: DMAALL - triggers on all dma interrupts (including chanel 15) 29: AUX 30: ARM 31: VPUDMA