구차니의 잡동사니 모음

Check the ACT LED to determine if the Pi is booting

The ACT LED is essential in determining if the Pi can actually read from the card. It indicates that it can read from the card by blinking, If the ACT LED doesn't blink quickly in an irregular pattern for at least twenty seconds, this indicates that the Pi cannot read from the SD card, and that booting is not taking place. By the way, It doesn't matter if the ACT LED initially starts on or off. It is only the blinking of the ACT LED that is significant. A dim ACT LED also has no significance beyond the fact that you are using a B. From the model B+ onwards, the LED is driven differently, and it wont be dim.

With no SD card inserted, note how the ACT LED behaves (hint, it won't blink!). Now insert a programmed card and that behaviour should change. If it does not, this indicates that Pi cannot see the necessary files on the SD card. For a demonstration, watch this video of a model B: the ACT LED is the one on the left-hand side. Note that on later models the ACT LED will start on on power up, instead as off like the model B. 

With working firmware, Meaning the PI can read files from the card, the ACT LED will flicker intermittently for 20-30 seconds. The LED is actually driven by the software read from the card using a dedicated GPIO pin turning it on whenever the card is read. It can also blink in a regular "Morse" pattern, which usually indicates an error condition. See the Additional Information section at the end of this post for details.  

$ blender

Color management: using fallback mode for management

connect failed: No such file or directory

libGL error: MESA-LOADER: malformed or no PCI ID

libGL error: dlopen /usr/lib/arm-linux-gnueabihf/dri/exynos_dri.so failed (/usr/lib/arm-linux-gnueabihf/dri/exynos_dri.so: cannot open shared object file: No such file or directory)

libGL error: dlopen ${ORIGIN}/dri/exynos_dri.so failed (${ORIGIN}/dri/exynos_dri.so: cannot open shared object file: No such file or directory)

libGL error: dlopen /usr/lib/dri/exynos_dri.so failed (/usr/lib/dri/exynos_dri.so: cannot open shared object file: No such file or directory)

libGL error: unable to load driver: exynos_dri.so

libGL error: driver pointer missing

libGL error: failed to load driver: exynos

Writing: /tmp/blender.crash.txt

Segmentation fault 

/usr/lib/arm-linux-gnueabihf$ ll libdrm_exynos.*

-rw-r--r-- 1 root root 12118 may 12 03:41 libdrm_exynos.a

lrwxrwxrwx 1 root root    22 may 12 03:40 libdrm_exynos.so -> libdrm_exynos.so.1.0.0

lrwxrwxrwx 1 root root    22 may 12 03:40 libdrm_exynos.so.1 -> libdrm_exynos.so.1.0.0

-rw-r--r-- 1 root root 13732 may 12 03:41 libdrm_exynos.so.1.0.0 

/usr/lib/arm-linux-gnueabihf/dri$ ll

total 21116

drwxr-xr-x  2 root root    4096 oct  8 21:28 ./

drwxr-xr-x 94 root root   94208 oct 23 21:11 ../

-rw-r--r--  1 root root   13884 abr 16  2014 dummy_drv_video.so

-rw-r--r--  1 root root 2632560 ene 13  2016 nouveau_dri.so

-rw-r--r--  4 root root 2482560 ene 13  2016 nouveau_vieux_dri.so

-rw-r--r--  4 root root 2482560 ene 13  2016 r200_dri.so

-rw-r--r--  1 root root 2186172 ene 13  2016 r300_dri.so

-rw-r--r--  1 root root 2550644 ene 13  2016 r600_dri.so

-rw-r--r--  4 root root 2482560 ene 13  2016 radeon_dri.so

-rw-r--r--  1 root root 2086952 ene 13  2016 radeonsi_dri.so

-rw-r--r--  4 root root 2482560 ene 13  2016 swrast_dri.so

-rw-r--r--  1 root root 2096024 ene 13  2016 vmwgfx_dri.so 

$ armsoc.sh

bash: /usr/local/bin/armsoc.sh: Permission denied 

$ cat /usr/local/bin/armsoc.sh

#!/bin/bash

rebuild_armsoc() { 

get_board 

if [ "$BOARD" = "odroidxu" ]; then

armsoc_err_not_supported

return

fi

if [ "$BOARD" = "odroidc" ]; then

apt-get -y update

apt-get -y dist-upgrade

msgbox "All updates performed. You don't need to run any other updates."

return

fi

do_5422_1504_apt_update

if [ "$DISTRO" = "ubuntu" ]; then

armsoc_rebuild_ubuntu

elif [ "$DISTRO" = "debian" ]; then

armsoc_rebuild_debian

else

armsoc_err_not_supported

fi

}

armsoc_rebuild_ubuntu() { 

if [ "$BOARD" = "odroidxu3" ]; then

msgbox "ODROID-XU3 isn't supported yet"

return

fi

root=/tmp/armsoc-update

buildlog=/root/armsoc-update-$DATE.txt

mkdir -p $root

cd $root

# Install dependencies.

apt-get -y build-dep xserver-xorg-video-armsoc

# Download the blobs

dlf builder.mdrjr.net/tools/u3/4412_r5p0_x11.tar.xz "Downloading Mali Binaries" $root/mali.tar.xz

# Download armsoc DDX from github

dlf https://github.com/mdrjr/xf86-video-armsoc/archive/r4p0.zip "Downloading ARMSOC DDX Sources from Github" $root/ddx.zip

echo "Building Mali DDX and Installing Binaries. Please wait"

echo "Saving build logs to $buildlog"

# Unpack

xz -d mali.tar.xz &>> $buildlog

tar xf mali.tar &>> $buildlog

unzip -qq ddx.zip &>> $buildlog

# Build DDX

cd xf86-video-armsoc-r4p0

./autogen.sh --with-drmmode=exynos --prefix=/usr &>> $buildlog

make -j4 &>> $buildlog

make install &>> $buildlog

cd ..

# Install new Binaries

cd mali

cp -aRP lib* /usr/lib

cp -aRP lib* /usr/lib/arm-linux-gnueabihf/mali-egl

ldconfig

cp config/xorg.conf /etc/X11/xorg.conf

sync

msgbox "Mali is now updated. If something fails or isn't working report on the forums with the following file: $buildlog"

}

armsoc_rebuild_debian() { 

if [ "$BOARD" = "odroidxu3" ]; then

msgbox "ODROID-XU3 isn't supported yet"

return

fi

root=/tmp/armsoc-update

buildlog=/root/armsoc-update-$DATE.txt

mkdir -p $root

cd $root

echo "Debian requires some extra packages to build. We are installing it.. Please wait."

# debian requires some extra packages to build the DDX. So.. lets install it

apt-get -y build-dep xserver-xorg-video-modesetting xserver-xorg-video-nouveau &>> $buildlog

apt-get -y install build-essential git xz-utils xserver-xorg-dev libudev-dev &>> $buildlog

# Download the blobs

dlf builder.mdrjr.net/tools/u3/4412_r5p0_x11.tar.xz "Downloading Mali Binaries" $root/mali.tar.xz

# Download armsoc DDX from github

dlf https://github.com/mdrjr/xf86-video-armsoc/archive/r4p0.zip "Downloading ARMSOC DDX Sources from Github" $root/ddx.zip

echo "Building Mali DDX and Installing Binaries. Please wait"

echo "Saving build logs to $buildlog"

# Unpack

xz -d mali.tar.xz &>> $buildlog

tar xf mali.tar &>> $buildlog

unzip -qq ddx.zip &>> $buildlog

# Build DDX

cd xf86-video-armsoc-r4p0

./autogen.sh --with-drmmode=exynos --prefix=/usr &>> $buildlog

make -j4 &>> $buildlog

make install &>> $buildlog

cd ..

# Install new Binaries

cd mali

cp -aRP lib* /usr/lib

ldconfig

cp config/xorg.conf /etc/X11/xorg.conf

cd /tmp && rm -fr $root

sync

msgbox "Mali is now updated. If something fails or isn't working report on the forums with the following file: $buildlog"

}

armsoc_err_not_supported() {

msgbox "ARMSOC: Your distro isn't supported. Report this on the forums -> Distro $DISTRO and board $BOARD"

}

/usr/lib/arm-linux-gnueabihf/mali-egl$ ll

total 1172

drwxr-xr-x  2 root root    4096 oct 23 22:19 ./

drwxr-xr-x 94 root root   94208 oct 23 21:11 ../

-rw-r--r--  1 root root      38 may  8  2014 ld.so.conf

lrwxrwxrwx  1 root root      11 feb 18  2015 libEGL.so -> libEGL.so.1*

lrwxrwxrwx  1 root root      13 feb 18  2015 libEGL.so.1 -> libEGL.so.1.4*

lrwxrwxrwx  1 root root      10 feb 18  2015 libEGL.so.1.4 -> libMali.so*

lrwxrwxrwx  1 root root      17 feb 18  2015 libGLESv1_CM.so -> libGLESv1_CM.so.1*

lrwxrwxrwx  1 root root      19 feb 18  2015 libGLESv1_CM.so.1 -> libGLESv1_CM.so.1.1*

lrwxrwxrwx  1 root root      10 feb 18  2015 libGLESv1_CM.so.1.1 -> libMali.so*

lrwxrwxrwx  1 root root      14 feb 18  2015 libGLESv2.so -> libGLESv2.so.2*

lrwxrwxrwx  1 root root      16 feb 18  2015 libGLESv2.so.2 -> libGLESv2.so.2.0*

lrwxrwxrwx  1 root root      10 feb 18  2015 libGLESv2.so.2.0 -> libMali.so*

-rwxr-xr-x  1 root root 1066735 feb 18  2015 libMali.so*

-rw-r--r--  1 root root   22232 feb 22  2013 libUMP.so

log$ grep "EE" Xorg.0.log

[   593.576] (EE) AIGLX error: dlopen of /usr/lib/arm-linux-gnueabihf/dri/armsoc_dri.so failed (/usr/lib/arm-linux-gnueabihf/dri/armsoc_dri.so: cannot open shared object file: No such file or directory)

[   593.576] (EE) AIGLX: reverting to software rendering 

static void

_HibernateWriteComplete(void)

{

    //

    // Spin until the write complete bit is set.

    //

    while(!(HWREG(HIB_CTL) & HIB_CTL_WRC))

    {

    }

}

void

HibernateEnableExpClk(uint32_t ui32HibClk)

{

    //

    // Turn on the clock enable bit.

    //

    HWREG(HIB_CTL) |= HIB_CTL_CLK32EN;

    //

    // Wait for write complete following register load (above).

    //

    _HibernateWriteComplete();

} 

void

HibernateClockConfig(uint32_t ui32Config)

{

    uint32_t ui32HIBCtl;

    ASSERT((ui32Config & ~(HIBERNATE_OSC_HIGHDRIVE | HIBERNATE_OSC_LOWDRIVE |

                           HIBERNATE_OSC_DISABLE)) == 0);

    ui32HIBCtl = HWREG(HIB_CTL);

    //

    // Clear the current configuration bits.

    //

    ui32HIBCtl &= ~(HIBERNATE_OSC_HIGHDRIVE | HIBERNATE_OSC_LOWDRIVE |

                    HIBERNATE_OSC_LFIOSC | HIBERNATE_OSC_DISABLE);

    //

    // Set the new configuration bits.

    //

    ui32HIBCtl |= ui32Config & (HIBERNATE_OSC_HIGHDRIVE |

                                HIBERNATE_OSC_LOWDRIVE |

                                HIBERNATE_OSC_LFIOSC |

                                HIBERNATE_OSC_DISABLE);

    //

    // Must be sure that the 32KHz clock is enabled if the hibernate is about

    // to switch to it.

    //

    if(ui32Config & HIBERNATE_OSC_LFIOSC)

    {

        ui32HIBCtl |= HIB_CTL_CLK32EN;

    }

    //

    // Set the hibernation clocking configuration.

    //

    HWREG(HIB_CTL) = ui32HIBCtl;

    //

    // Wait for write completion

    //

    _HibernateWriteComplete();

    //

    // Write the output clock configuration for devices that support

    // controlling the output clocks from the hibernate module.

    //

    if(HIBERNATE_CLOCK_OUTPUT)

    {

        HWREG(HIB_CC) = ui32Config & (HIBERNATE_OUT_SYSCLK |

                                      HIBERNATE_OUT_ALT1CLK);

    }

} 

void

HibernateEnableExpClk(unsigned long ulHibClk)

{

    //

    // Turn on the clock enable bit.

    //

    HWREG(HIB_CTL) |= HIB_CTL_CLK32EN;

    //

    // For Fury-class devices, compute the number of delay loops that must be

    // used to achieve the desired delay for writes to the hibernation

    // registers.  This value will be used in calls to SysCtlDelay().

    //

    if(CLASS_IS_FURY)

    {

        g_ulWriteDelay = (((ulHibClk / 1000) * DELAY_USECS) /

                          (1000L * LOOP_CYCLES));

        g_ulWriteDelay++;

    }

}