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Poky 2.0 manual

Wed, 03/09/2016 - 00:37

Reflash factory image (update software/firmware or corrupt flash partition):

← Older revision Revision as of 07:37, 9 March 2016 (13 intermediate revisions not shown)Line 12: Line 12: ==Output files== ==Output files== -Found in the poky's deploy directory: '''poky/build/tmp/deploy/images/'''+Found in the poky's deploy directory: +* files for rootfs in NAND Flash: '''poky/build/tmp/deploy/images/elphel393/nand/''' +* files for rootfs on MMC (micro SD card): '''poky/build/tmp/deploy/images/elphel393/mmc/''' These names are listed as they appear in the u-boot configuration header file - actual output files have different names: These names are listed as they appear in the u-boot configuration header file - actual output files have different names: * '''boot.bin''' - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img''' * '''boot.bin''' - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img''' * '''u-boot-dtb.img''' - full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'') * '''u-boot-dtb.img''' - full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'') -* '''devicetree.dtb''' - device tree with described interfaces, zynq registers, interrupts and drivers+* '''devicetree.dtb''' - device tree with listed interfaces, zynq registers, interrupts and drivers * '''uImage''' - kernel, drivers * '''uImage''' - kernel, drivers -* '''uramdisk.image.gz''' - applications+* '''rootfs.ubifs''' or '''rootfs.tar.gz''' - rootfs - + -Copy them on the micro SD card (FAT partition) > run '''boot''' once in the u-boot command line.+ ==Boot options== ==Boot options== -* Auto unpacking the root file system image to RAM when booting:+===Boot from micro SD card=== -** Check u-boot default environment variables when building the bootloader.+* The micro SD card/adapter must be modified for this boot mode (to keep CD pin high) - only then the camera will boot. -** Keep '''uramdisk.image.gz''' along with all the other files on the FAT partition of (micro)SD card.+* EXT4 partition mounted as '''/'''. -* Root file system on EXT2(EXT3,etc.) partition of (micro)SD card.+====Instructions==== +PC: +* After all of the targets are built use files from '''.../poky/build/tmp/deploy/images/elphel393/mmc/''' +* Format to have 2 partitions: FAT32 and EXT4 (use gparted), the order of partitions is important or change bootargs in the device tree. +* FAT32: copy the following files: +*** '''boot.bin''' +*** '''u-boot-dtb.img''' +*** '''devicetree.dtb''' +*** '''uImage''' +* EXT4: mounted to some <mountpoint> +** unpack the '''rootfs.tar.gz''', console: + tar -C <mountpoint> -xzpf rootfs.tar.gz + +Camera: +* Insert, power on + +===Boot from NAND flash=== +* The default boot option - power on. +* A UBIFS image of rootfs is written to /dev/mtd4 ('''ubi0:elphel393''' in bootargs in the device tree) +====Reflash factory image (update software/firmware or corrupt flash partition) ==== +* Use files from '''.../poky/build/tmp/deploy/images/elphel393/nand/''' +* Copy all of the image files to a micro SD card (or boot first from the card then copy over network) +* Boot from micro SD card. +* Reflash what is needed: +** Reflash SPL ('''boot.bin''', /dev/mtd0) + + cd <path-to-image-files> + # boot.bin + # mtd0 is 1MB (8 eraseblocks,128K = 1 block, there are 64 pages of 2048 per block) + # erase only first 2 blocks, other block are reserved for copies + flash_unlock /dev/mtd0 + flash_erase /dev/mtd0 0 2 + nandwrite -n /dev/mtd0 -p boot.bin + +** Reflash u-boot ('''u-boot-dtb.img''', /dev/mtd1) + + cd <path-to-image-files> + # u-boot-dtb.img + # mtd1 is 4M (32 eraseblocks,128K = 1 block, there are 64 pages of 2048 per block) + # erase only the 1st 8 blocks as image is <1M, leave unused area for backup copies + flash_unlock /dev/mtd1 + flash_erase /dev/mtd1 0 8 + nandwrite -n /dev/mtd1 -p u-boot-dtb.img + +** Reflash devicetree ('''devicetree.dtb''', /dev/mtd2) + + cd <path-to-image-files> + # u-boot-dtb.img + # mtd2 is 1M (8 eraseblocks,128K = 1 block, there are 64 pages of 2048 per block) + flash_unlock /dev/mtd2 + flash_erase /dev/mtd2 0 8 + nandwrite -n /dev/mtd2 -p devicetree.dtb + +** Reflash kernel ('''uImage''', /dev/mtd3) + + cd <path-to-image-files> + # uImage + # mtd3 is 16M (128 eraseblocks,128K = 1 block, there are 64 pages of 2048 per block) + flash_unlock /dev/mtd3 + flash_erase /dev/mtd3 0 128 + nandwrite -n /dev/mtd3 -p uImage + +** For rootfs there are 2 options: +*** update - recommended, '''rootfs.ubifs''' +*** reflash - radical, '''rootfs.ubi''' +Update: + + To be described... + http://www.linux-mtd.infradead.org/faq/ubifs.html#L_mkfubifs + +Reflash: + + cd <path-to-image-files> + flash_unlock /dev/mtd4 + flash_erase /dev/mtd4 0 2048 + ubiformat /dev/mtd4 -f rootfs.ubi -s 2048 -O 2048 + +'''Note:''' Considering to store the u-boot, device tree and kernel on UBUFS partitions in future. ==Setup== ==Setup== Line 50: Line 127: '''#Part 2 : init environment and auto-fill Yocto's conf-files''' '''#Part 2 : init environment and auto-fill Yocto's conf-files''' + CONF_NOTES="meta/conf/conf-notes.txt" + + if [ -f $CONF_NOTES ]; then + rm $CONF_NOTES + fi + + echo "Common \"elphel393\" targets are:" >> $CONF_NOTES + echo " u-boot" >> $CONF_NOTES + echo " device-tree" >> $CONF_NOTES + echo " linux-xlnx" >> $CONF_NOTES + echo " core-image-elphel393" >> $CONF_NOTES CURRENT_PATH=$(dirname $(readlink -f "$0")) CURRENT_PATH=$(dirname $(readlink -f "$0")) Oleg

Poky 2.0 manual

Tue, 03/08/2016 - 22:54

Output files:

← Older revision Revision as of 05:54, 9 March 2016 (5 intermediate revisions not shown)Line 12: Line 12: ==Output files== ==Output files== -Found in the poky's deploy directory: '''poky/build/tmp/deploy/images/'''+Found in the poky's deploy directory: +* files for rootfs in NAND Flash: '''poky/build/tmp/deploy/images/elphel393/nand/''' +* files for rootfs on MMC (micro SD card): '''poky/build/tmp/deploy/images/elphel393/mmc/''' These names are listed as they appear in the u-boot configuration header file - actual output files have different names: These names are listed as they appear in the u-boot configuration header file - actual output files have different names: * '''boot.bin''' - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img''' * '''boot.bin''' - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img''' * '''u-boot-dtb.img''' - full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'') * '''u-boot-dtb.img''' - full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'') -* '''devicetree.dtb''' - device tree with described interfaces, zynq registers, interrupts and drivers+* '''devicetree.dtb''' - device tree with listed interfaces, zynq registers, interrupts and drivers * '''uImage''' - kernel, drivers * '''uImage''' - kernel, drivers -* '''uramdisk.image.gz''' - applications+* '''rootfs.ubi''' or '''rootfs.tar.gz''' - rootfs - + -Copy them on the micro SD card (FAT partition) > run '''boot''' once in the u-boot command line.+ ==Boot options== ==Boot options== -* Auto unpacking the root file system image to RAM when booting:+===Boot from micro SD card=== -** Check u-boot default environment variables when building the bootloader.+* The card/adapter must be modified for the boot mode from SD card - only then the camera will boot. -** Keep '''uramdisk.image.gz''' along with all the other files on the FAT partition of (micro)SD card.+ -* Root file system on EXT2(EXT3,etc.) partition of (micro)SD card.+===Boot from NAND flash=== +* Power on ==Setup== ==Setup== Line 50: Line 51: '''#Part 2 : init environment and auto-fill Yocto's conf-files''' '''#Part 2 : init environment and auto-fill Yocto's conf-files''' + CONF_NOTES="meta/conf/conf-notes.txt" + + if [ -f $CONF_NOTES ]; then + rm $CONF_NOTES + fi + + echo "Common \"elphel393\" targets are:" >> $CONF_NOTES + echo " u-boot" >> $CONF_NOTES + echo " device-tree" >> $CONF_NOTES + echo " linux-xlnx" >> $CONF_NOTES + echo " core-image-elphel393" >> $CONF_NOTES CURRENT_PATH=$(dirname $(readlink -f "$0")) CURRENT_PATH=$(dirname $(readlink -f "$0")) Oleg

Poky 2.0 manual

Tue, 03/08/2016 - 21:51

Boot options:

← Older revision Revision as of 04:51, 9 March 2016 (4 intermediate revisions not shown)Line 12: Line 12: ==Output files== ==Output files== -Found in the poky's deploy directory: '''poky/build/tmp/deploy/images/'''+Found in the poky's deploy directory: +* files for rootfs in NAND Flash: '''poky/build/tmp/deploy/images/elphel393/nand/''' +* files for rootfs in on MMC (micro SD card): '''poky/build/tmp/deploy/images/elphel393/mmc/''' These names are listed as they appear in the u-boot configuration header file - actual output files have different names: These names are listed as they appear in the u-boot configuration header file - actual output files have different names: * '''boot.bin''' - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img''' * '''boot.bin''' - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img''' * '''u-boot-dtb.img''' - full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'') * '''u-boot-dtb.img''' - full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'') -* '''devicetree.dtb''' - device tree with described interfaces, zynq registers, interrupts and drivers+* '''devicetree.dtb''' - device tree with listed interfaces, zynq registers, interrupts and drivers * '''uImage''' - kernel, drivers * '''uImage''' - kernel, drivers -* '''uramdisk.image.gz''' - applications+* '''rootfs.ubi''' or '''rootfs.tar.gz''' - rootfs - + -Copy them on the micro SD card (FAT partition) > run '''boot''' once in the u-boot command line.+ ==Boot options== ==Boot options== -* Auto unpacking the root file system image to RAM when booting:+===Boot from micro SD card=== -** Check u-boot default environment variables when building the bootloader.+* The card/adapter must be modified for the boot mode from SD card - only then the camera will boot. -** Keep '''uramdisk.image.gz''' along with all the other files on the FAT partition of (micro)SD card.+ -* Root file system on EXT2(EXT3,etc.) partition of (micro)SD card.+===Boot from NAND flash=== +* Power on ==Setup== ==Setup== Line 50: Line 51: '''#Part 2 : init environment and auto-fill Yocto's conf-files''' '''#Part 2 : init environment and auto-fill Yocto's conf-files''' + CONF_NOTES="meta/conf/conf-notes.txt" + + if [ -f $CONF_NOTES ]; then + rm $CONF_NOTES + fi + + echo "Common \"elphel393\" targets are:" >> $CONF_NOTES + echo " u-boot" >> $CONF_NOTES + echo " device-tree" >> $CONF_NOTES + echo " linux-xlnx" >> $CONF_NOTES + echo " core-image-elphel393" >> $CONF_NOTES CURRENT_PATH=$(dirname $(readlink -f "$0")) CURRENT_PATH=$(dirname $(readlink -f "$0")) Oleg

Poky 2.0 manual

Tue, 03/08/2016 - 21:33

Output files:

← Older revision Revision as of 04:33, 9 March 2016 (3 intermediate revisions not shown)Line 12: Line 12: ==Output files== ==Output files== -Found in the poky's deploy directory: '''poky/build/tmp/deploy/images/'''+Found in the poky's deploy directory: +* files for rootfs in NAND Flash: '''poky/build/tmp/deploy/images/elphel393/nand/''' +* files for rootfs in on MMC (micro SD card): '''poky/build/tmp/deploy/images/elphel393/mmc/''' These names are listed as they appear in the u-boot configuration header file - actual output files have different names: These names are listed as they appear in the u-boot configuration header file - actual output files have different names: * '''boot.bin''' - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img''' * '''boot.bin''' - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img''' * '''u-boot-dtb.img''' - full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'') * '''u-boot-dtb.img''' - full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'') -* '''devicetree.dtb''' - device tree with described interfaces, zynq registers, interrupts and drivers+* '''devicetree.dtb''' - device tree with listed interfaces, zynq registers, interrupts and drivers * '''uImage''' - kernel, drivers * '''uImage''' - kernel, drivers -* '''uramdisk.image.gz''' - applications+* '''rootfs.ubi''' or '''rootfs.tar.gz''' - rootfs - + -Copy them on the micro SD card (FAT partition) > run '''boot''' once in the u-boot command line.+ ==Boot options== ==Boot options== Line 50: Line 50: '''#Part 2 : init environment and auto-fill Yocto's conf-files''' '''#Part 2 : init environment and auto-fill Yocto's conf-files''' + CONF_NOTES="meta/conf/conf-notes.txt" + + if [ -f $CONF_NOTES ]; then + rm $CONF_NOTES + fi + + echo "Common \"elphel393\" targets are:" >> $CONF_NOTES + echo " u-boot" >> $CONF_NOTES + echo " device-tree" >> $CONF_NOTES + echo " linux-xlnx" >> $CONF_NOTES + echo " core-image-elphel393" >> $CONF_NOTES CURRENT_PATH=$(dirname $(readlink -f "$0")) CURRENT_PATH=$(dirname $(readlink -f "$0")) Oleg

Poky 2.0 manual

Tue, 03/08/2016 - 00:03

Setup:

← Older revision Revision as of 07:03, 8 March 2016 Line 50: Line 50: '''#Part 2 : init environment and auto-fill Yocto's conf-files''' '''#Part 2 : init environment and auto-fill Yocto's conf-files''' + CONF_NOTES="meta/conf/conf-notes.txt" + + if [ -f $CONF_NOTES ]; then + rm $CONF_NOTES + fi + + echo "Common \"elphel393\" targets are:" >> $CONF_NOTES + echo " u-boot" >> $CONF_NOTES + echo " device-tree" >> $CONF_NOTES + echo " linux-xlnx" >> $CONF_NOTES + echo " core-image-elphel393" >> $CONF_NOTES CURRENT_PATH=$(dirname $(readlink -f "$0")) CURRENT_PATH=$(dirname $(readlink -f "$0")) Oleg

Microzed issues

Tue, 02/23/2016 - 15:35

List:

← Older revision Revision as of 22:35, 23 February 2016 (4 intermediate revisions not shown)Line 1: Line 1: ==List== ==List== -* [SOLVED] UART+===[CLEARED] UART=== Description: Description: Line 31: Line 31: -* SSH terminal+===[CLEARED] SSH terminal=== Description: Description: Freezes, lags but remembers all typed symbols Freezes, lags but remembers all typed symbols Possible reason: Possible reason: - Bad network cable? Network problem?+ Devices with identical MACs in LAN -* RTC+===RTC=== - Too many messages when rtc is missing Description: Description: + Not an issue 3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log 3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log Possible reason: Possible reason: - driver+ a. Microzed doesn't have a real-time clock (rtc) + b. Reported by /etc/init.d/hwclock.sh - not the driver -* U-boot Falcon mode (boot from SPL directly to OS avoiding full u-boot)+===U-boot Falcon mode (boot from SPL directly to OS avoiding full u-boot)=== Description: Description: Line 53: Line 54: Possible reason: Possible reason: -* U-boot spl reads u-boot-dtb.img 2 times+===U-boot spl reads u-boot-dtb.img 2 times=== Description: Description: Line 92: Line 93: - -* hwclock multiple error messages - - Description: - Not an issue - "hwclock: can't open '/dev/misc/rtc': No such file or directory" repeated 3 times - Possible reason: - a. Microzed doesn't have a real-time clock (rtc) - b. Reported by /etc/init.d/hwclock.sh - not the driver ==Useful pages== ==Useful pages== Oleg

Microzed issues

Fri, 02/19/2016 - 18:19

← Older revision Revision as of 01:19, 20 February 2016 (One intermediate revision not shown)Line 1: Line 1: ==List== ==List== -* [SOLVED] UART+===[SOLVED] UART=== Description: Description: Line 31: Line 31: -* SSH terminal+===SSH terminal=== Description: Description: Line 38: Line 38: Bad network cable? Network problem? Bad network cable? Network problem? -* RTC+===RTC=== - Too many messages when rtc is missing+ Not an issue + "hwclock: can't open '/dev/misc/rtc': No such file or directory" repeated 3 times Description: Description: 3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log 3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log Possible reason: Possible reason: - driver+ a. Microzed doesn't have a real-time clock (rtc) + b. Reported by /etc/init.d/hwclock.sh - not the driver -* U-boot Falcon mode (boot from SPL directly to OS avoiding full u-boot)+===U-boot Falcon mode (boot from SPL directly to OS avoiding full u-boot)=== Description: Description: Line 53: Line 55: Possible reason: Possible reason: -* U-boot spl reads u-boot-dtb.img 2 times+===U-boot spl reads u-boot-dtb.img 2 times=== Description: Description: Line 92: Line 94: - -* hwclock multiple error messages - - Description: - Not an issue - "hwclock: can't open '/dev/misc/rtc': No such file or directory" repeated 3 times - Possible reason: - a. Microzed doesn't have a real-time clock (rtc) - b. Reported by /etc/init.d/hwclock.sh - not the driver ==Useful pages== ==Useful pages== Oleg

Poky 2.0 manual

Fri, 02/19/2016 - 18:13

Setup:

← Older revision Revision as of 01:13, 20 February 2016 Line 41: Line 41: git clone -b master https://github.com/Elphel/meta-elphel393.git meta-elphel393 git clone -b master https://github.com/Elphel/meta-elphel393.git meta-elphel393 - cd meta-elphel393; git checkout e8c6e139848a21b1bf0c05b306108e390bc44e24; cd ..+ cd meta-elphel393; git checkout c5237f99d94217bff8c9180bed93ee673c9590a1; cd .. git clone -b master https://github.com/Xilinx/meta-xilinx.git meta-xilinx git clone -b master https://github.com/Xilinx/meta-xilinx.git meta-xilinx Oleg

Microzed issues

Fri, 02/19/2016 - 18:07

New page

==List==
* [SOLVED] UART

Description:
UART register contents: timeout=0 rxfifo_level=56, should be timeout=10 rxfifo_level=56
minicom prints 56 symbols at a time when rxfifo reaches its level.
remembers all typed symbols
sometimes the timeout register is set correctly
Possible reason:
In driver .startup and .termios conflict? Racing Resets or reset takes time?
Solution:
Added a delay after reset - some other functions in the driver also have it - some not. Luck?
Patch:
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index f214c7f..164e32d 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -704,6 +704,9 @@ static void cdns_uart_set_termios(struct uart_port *port,
ctrl_reg |= CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST;
cdns_uart_writel(ctrl_reg, CDNS_UART_CR_OFFSET);

+ while (cdns_uart_readl(CDNS_UART_CR_OFFSET) &
+ (CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST))
+ cpu_relax();
/*
* Clear the RX disable and TX disable bits and then set the TX enable
* bit and RX enable bit to enable the transmitter and receiver.
Links:
* https://forums.xilinx.com/t5/Zynq-All-Programmable-SoC/Zynq-Uart-timeout-problem/td-p/432016
* http://www.makelinux.net/ldd3/chp-7-sect-3


* SSH terminal

Description:
Freezes, lags but remembers all typed symbols
Possible reason:
Bad network cable? Network problem?

* RTC

Too many messages when rtc is missing
Description:
3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log
Possible reason:
driver


* U-boot Falcon mode (boot from SPL directly to OS avoiding full u-boot)

Description:
Try
Possible reason:

* U-boot spl reads u-boot-dtb.img 2 times

Description:
Not an issue - prints "reading u-boot-dtb.img" 2 times. "Very Annoying","Every microsecond counts"!
Possible reason:
u-boot/common/spl/spl_fat.c:
int spl_load_image_fat(block_dev_desc_t *block_dev,
int partition,
const char *filename)
{
int err;
struct image_header *header;

err = spl_register_fat_device(block_dev, partition);
if (err)
goto end;

header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
sizeof(struct image_header));

err = file_fat_read(filename, header, sizeof(struct image_header));
if (err <= 0)
goto end;

spl_parse_image_header(header);

err = file_fat_read(filename, (u8 *)spl_image.load_addr, 0);

end:
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
if (err <= 0)
printf("%s: error reading image %s, err - %d\n",
__func__, filename, err);
#endif

return (err <= 0);
}



* hwclock multiple error messages

Description:
Not an issue
"hwclock: can't open '/dev/misc/rtc': No such file or directory" repeated 3 times
Possible reason:
a. Microzed doesn't have a real-time clock (rtc)
b. Reported by /etc/init.d/hwclock.sh - not the driver

==Useful pages==
* http://processors.wiki.ti.com/index.php/Enabling_Stack_Dumping_in_Linux_Kernel
* https://lists.yoctoproject.org/pipermail/poky/2015-February/010037.html - change hostname in poky
* http://www.makelinux.net/ldd3/chp-7-sect-3
* http://www.denx.de/wiki/pub/U-Boot/MiniSummitELCE2013/2013-ELCE-U-Boot-Falcon-Boot.pdf Oleg

Microzed issues

Fri, 02/19/2016 - 17:46

New page

==List==
* [SOLVED] UART

Description:
UART register contents: timeout=0 rxfifo_level=56, should be timeout=10 rxfifo_level=56
minicom prints 56 symbols at a time when rxfifo reaches its level.
remembers all typed symbols
sometimes the timeout register is set correctly
Possible reason:
In driver .startup and .termios conflict? Racing Resets or reset takes time?
Solution:
Added a delay after reset - some other functions in the driver also have it - some not. Luck?
Patch:
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index f214c7f..164e32d 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -704,6 +704,9 @@ static void cdns_uart_set_termios(struct uart_port *port,
ctrl_reg |= CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST;
cdns_uart_writel(ctrl_reg, CDNS_UART_CR_OFFSET);

+ while (cdns_uart_readl(CDNS_UART_CR_OFFSET) &
+ (CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST))
+ cpu_relax();
/*
* Clear the RX disable and TX disable bits and then set the TX enable
* bit and RX enable bit to enable the transmitter and receiver.
Links:
* https://forums.xilinx.com/t5/Zynq-All-Programmable-SoC/Zynq-Uart-timeout-problem/td-p/432016
* http://www.makelinux.net/ldd3/chp-7-sect-3


* SSH terminal

Description:
Freezes, lags but remembers all typed symbols
Possible reason:
Bad network cable? Network problem?

* RTC

Too many messages when rtc is missing
Description:
3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log
Possible reason:
driver


* U-boot Falcon mode (boot from SPL directly to OS avoiding full u-boot)

Description:
Try
Possible reason:

* U-boot spl reads u-boot-dtb.img 2 times

Description:
Not an issue - prints "reading u-boot-dtb.img" 2 times. "Very Annoying","Every microsecond counts"!
Possible reason:
u-boot/common/spl/spl_fat.c:
int spl_load_image_fat(block_dev_desc_t *block_dev,
int partition,
const char *filename)
{
int err;
struct image_header *header;

err = spl_register_fat_device(block_dev, partition);
if (err)
goto end;

header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
sizeof(struct image_header));

err = file_fat_read(filename, header, sizeof(struct image_header));
if (err <= 0)
goto end;

spl_parse_image_header(header);

err = file_fat_read(filename, (u8 *)spl_image.load_addr, 0);

end:
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
if (err <= 0)
printf("%s: error reading image %s, err - %d\n",
__func__, filename, err);
#endif

return (err <= 0);
}



==Useful pages==
* http://processors.wiki.ti.com/index.php/Enabling_Stack_Dumping_in_Linux_Kernel
* https://lists.yoctoproject.org/pipermail/poky/2015-February/010037.html - change hostname in poky
* http://www.makelinux.net/ldd3/chp-7-sect-3
* http://www.denx.de/wiki/pub/U-Boot/MiniSummitELCE2013/2013-ELCE-U-Boot-Falcon-Boot.pdf Oleg

Microzed issues

Fri, 02/19/2016 - 16:34

New page

==List==
* [SOLVED] UART

Description:
UART register contents: timeout=0 rxfifo_level=56, should be timeout=10 rxfifo_level=56
minicom prints 56 symbols at a time when rxfifo reaches its level.
remembers all typed symbols
sometimes the timeout register is set correctly
Possible reason:
In driver .startup and .termios conflict? Racing Resets or reset takes time?
Solution:
Added a delay after reset - some other functions in the driver also have it - some not. Luck?
Patch:
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index f214c7f..164e32d 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -704,6 +704,9 @@ static void cdns_uart_set_termios(struct uart_port *port,
ctrl_reg |= CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST;
cdns_uart_writel(ctrl_reg, CDNS_UART_CR_OFFSET);

+ while (cdns_uart_readl(CDNS_UART_CR_OFFSET) &
+ (CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST))
+ cpu_relax();
/*
* Clear the RX disable and TX disable bits and then set the TX enable
* bit and RX enable bit to enable the transmitter and receiver.
Links:
* https://forums.xilinx.com/t5/Zynq-All-Programmable-SoC/Zynq-Uart-timeout-problem/td-p/432016
* http://www.makelinux.net/ldd3/chp-7-sect-3


* SSH terminal

Description:
Freezes, lags but remembers all typed symbols
Possible reason:
Bad network cable? Network problem?

* RTC

Too many messages when rtc is missing
Description:
3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log
Possible reason:
driver


* U-boot Falcon mode (boot from SPL directly to OS avoiding full u-boot)

Description:
Try
Possible reason:

* U-boot spl reads u-boot-dtb.img 2 times

Description:
Not an issue - prints "reading u-boot-dtb.img" 2 times. "Very Annoying","Every microsecond counts"!
Possible reason:
u-boot/common/spl/spl_fat.c:
int spl_load_image_fat(block_dev_desc_t *block_dev,
int partition,
const char *filename)
{
int err;
struct image_header *header;

err = spl_register_fat_device(block_dev, partition);
if (err)
goto end;

header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
sizeof(struct image_header));

err = file_fat_read(filename, header, sizeof(struct image_header));
if (err <= 0)
goto end;

spl_parse_image_header(header);

err = file_fat_read(filename, (u8 *)spl_image.load_addr, 0);

end:
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
if (err <= 0)
printf("%s: error reading image %s, err - %d\n",
__func__, filename, err);
#endif

return (err <= 0);
}



==Useful pages==
* http://processors.wiki.ti.com/index.php/Enabling_Stack_Dumping_in_Linux_Kernel
* https://lists.yoctoproject.org/pipermail/poky/2015-February/010037.html - change hostname in poky
* http://www.makelinux.net/ldd3/chp-7-sect-3 Oleg

Microzed issues

Fri, 02/19/2016 - 15:28

New page

==List==
* [SOLVED] UART

Description:
UART register contents: timeout=0 rxfifo_level=56, should be timeout=10 rxfifo_level=56
minicom prints 56 symbols at a time when rxfifo reaches its level.
remembers all typed symbols
sometimes the timeout register is set correctly
Possible reason:
In driver .startup and .termios conflict? Racing Resets or reset takes time?
Solution:
Added a delay after reset - some other functions in the driver also have it - some not. Luck?
Patch:
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index f214c7f..164e32d 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -704,6 +704,9 @@ static void cdns_uart_set_termios(struct uart_port *port,
ctrl_reg |= CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST;
cdns_uart_writel(ctrl_reg, CDNS_UART_CR_OFFSET);

+ while (cdns_uart_readl(CDNS_UART_CR_OFFSET) &
+ (CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST))
+ cpu_relax();
/*
* Clear the RX disable and TX disable bits and then set the TX enable
* bit and RX enable bit to enable the transmitter and receiver.
Links:
* https://forums.xilinx.com/t5/Zynq-All-Programmable-SoC/Zynq-Uart-timeout-problem/td-p/432016
* http://www.makelinux.net/ldd3/chp-7-sect-3


* SSH terminal

Description:
Freezes, lags but remembers all typed symbols
Possible reason:
Bad network cable? Network problem?

* RTC

Too many messages when rtc is missing
Description:
3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log
Possible reason:
driver


* U-boot Falcon mode (boot from SPL directly to OS avoiding full u-boot)

Description:
Try
Possible reason:



==Useful pages==
* http://processors.wiki.ti.com/index.php/Enabling_Stack_Dumping_in_Linux_Kernel
* https://lists.yoctoproject.org/pipermail/poky/2015-February/010037.html - change hostname in poky
* http://www.makelinux.net/ldd3/chp-7-sect-3 Oleg

Microzed issues

Fri, 02/19/2016 - 14:09

New page

==List==
* [SOLVED] UART

Description:
UART register contents: timeout=0 rxfifo_level=56, should be timeout=10 rxfifo_level=56
minicom prints 56 symbols at a time when rxfifo reaches its level.
remembers all typed symbols
sometimes the timeout register is set correctly
Possible reason:
In driver .startup and .termios conflict? Racing Resets or reset takes time?
Solution:
Added a delay after reset - some other functions in the driver also have it - some not. Luck?
Patch:
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index f214c7f..164e32d 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -704,6 +704,9 @@ static void cdns_uart_set_termios(struct uart_port *port,
ctrl_reg |= CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST;
cdns_uart_writel(ctrl_reg, CDNS_UART_CR_OFFSET);

+ while (cdns_uart_readl(CDNS_UART_CR_OFFSET) &
+ (CDNS_UART_CR_TXRST | CDNS_UART_CR_RXRST))
+ cpu_relax();
/*
* Clear the RX disable and TX disable bits and then set the TX enable
* bit and RX enable bit to enable the transmitter and receiver.
Links:
* https://forums.xilinx.com/t5/Zynq-All-Programmable-SoC/Zynq-Uart-timeout-problem/td-p/432016
* http://www.makelinux.net/ldd3/chp-7-sect-3


* SSH terminal

Description:
Freezes, lags but remembers all typed symbols
Possible reason:
Bad network cable? Network problem?

* RTC

Too many messages when rtc is missing
Description:
3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log
Possible reason:
driver


==Useful pages==
* http://processors.wiki.ti.com/index.php/Enabling_Stack_Dumping_in_Linux_Kernel
* https://lists.yoctoproject.org/pipermail/poky/2015-February/010037.html - change hostname in poky
* http://www.makelinux.net/ldd3/chp-7-sect-3 Oleg

Microzed issues

Thu, 02/18/2016 - 21:13

New page

==List==
* UART

Description:
UART register contents: timeout=0 rxfifo_level=56, should be timeout=10 rxfifo_level=56
minicom prints 56 symbols at a time when rxfifo reaches its level.
remembers all typed symbols
sometimes the timeout register is set correctly
Possible reason:
In driver .startup and .termios conflict?

* SSH terminal

Description:
Freezes, lags but remembers all typed symbols
Possible reason:
UART problem?

* RTC

Too many messages when rtc is missing
Description:
3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log
Possible reason:
driver


==Useful pages==
* https://forums.xilinx.com/t5/Zynq-All-Programmable-SoC/Zynq-Uart-timeout-problem/td-p/432016
* http://processors.wiki.ti.com/index.php/Enabling_Stack_Dumping_in_Linux_Kernel
* https://lists.yoctoproject.org/pipermail/poky/2015-February/010037.html
* http://www.makelinux.net/ldd3/chp-7-sect-3 Oleg

Microzed issues

Thu, 02/18/2016 - 19:33

New page

==List==
* UART

Description:
UART register contents: timeout=0 rxfifo_level=56, should be timeout=10 rxfifo_level=56
minicom prints 56 symbols at a time when rxfifo reaches its level.
remembers all typed symbols
sometimes the timeout register is set correctly
Possible reason:
In driver .startup and .termios conflict?

* SSH terminal

Description:
Freezes, lags but remembers all typed symbols
Possible reason:
UART problem?

* RTC

Too many messages when rtc is missing
Description:
3x"hwclock: can't open '/dev/misc/rtc': No such file or directory" in boot log
Possible reason:
driver
 Oleg

Poky 2.0 manual

Thu, 02/18/2016 - 15:08

← Older revision Revision as of 22:08, 18 February 2016 (One intermediate revision not shown)Line 15: Line 15: These names are listed as they appear in the u-boot configuration header file - actual output files have different names: These names are listed as they appear in the u-boot configuration header file - actual output files have different names: -* '''boot.bin'''+('''u-boot-dtb.img''') - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img'''+* '''boot.bin''' - u-boot as the first stage bootloader = Secondary Program Loader that boots '''u-boot-dtb.img''' +* '''u-boot-dtb.img''' - full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'') * '''devicetree.dtb''' - device tree with described interfaces, zynq registers, interrupts and drivers * '''devicetree.dtb''' - device tree with described interfaces, zynq registers, interrupts and drivers * '''uImage''' - kernel, drivers * '''uImage''' - kernel, drivers Line 40: Line 41: git clone -b master https://github.com/Elphel/meta-elphel393.git meta-elphel393 git clone -b master https://github.com/Elphel/meta-elphel393.git meta-elphel393 - cd meta-elphel393; git checkout 2bf73c48be5433002144bc9126bdc9c44b30b98c; cd ..+ cd meta-elphel393; git checkout e8c6e139848a21b1bf0c05b306108e390bc44e24; cd .. git clone -b master https://github.com/Xilinx/meta-xilinx.git meta-xilinx git clone -b master https://github.com/Xilinx/meta-xilinx.git meta-xilinx Oleg

Poky 2.0 manual

Wed, 02/17/2016 - 12:19

← Older revision Revision as of 19:19, 17 February 2016 Line 40: Line 40: git clone -b master https://github.com/Elphel/meta-elphel393.git meta-elphel393 git clone -b master https://github.com/Elphel/meta-elphel393.git meta-elphel393 - cd meta-elphel393; git checkout 2bf73c48be5433002144bc9126bdc9c44b30b98c; cd ..+ cd meta-elphel393; git checkout e8c6e139848a21b1bf0c05b306108e390bc44e24; cd .. git clone -b master https://github.com/Xilinx/meta-xilinx.git meta-xilinx git clone -b master https://github.com/Xilinx/meta-xilinx.git meta-xilinx Oleg

Elphel 353 series quick start guide

Thu, 02/11/2016 - 13:13

Command line access:

← Older revision Revision as of 20:13, 11 February 2016 Line 117: Line 117: ==Command line access== ==Command line access== -a) '''SSH'''+a) '''SSH''' (outdated, drops connections, please, use Telnet) In the terminal window: ssh root@192.168.0.9 In the terminal window: ssh root@192.168.0.9 Oleg

Request for quote 393-1

Tue, 02/09/2016 - 15:59

Created page with "Elphel, Inc. invites the machine shops to Quote manufacturing of the following parts: {| class="wikitable" style="background:#fcfcfc; " border="1" |+ Metal Parts |- ! Part !! Q..."

New page

Elphel, Inc. invites the machine shops to Quote manufacturing of the following parts:
{| class="wikitable" style="background:#fcfcfc; " border="1"
|+ Metal Parts
|-
! Part !! QTY per Unit !! Notes
|-
| [[Elphel_camera_parts_0393-12#0393-12-29_-_Sensor_front_end.2C_CS-mount|0393-12-29 - Sensor front end, CS-mount ]] || 10 || 100 ||
|-
| [[Elphel_camera_parts_0393-12#0393-12-30_-_Sensor_adjustment_plate|0393-12-30 - Sensor adjustment plate ]] || 10 || 100 ||
|-
| [[Elphel_camera_parts_0393-11#0393-11-04_-_Cooling_fan_enclosure|0393-11-04 - Cooling fan enclosure ]] || 10 || 100 ||
|-
| [[Elphel_camera_parts_0393-11#0393-11-10_-_CPU_heat_plate|0393-11-10 - CPU heat plate]] || 10 || 100 ||
|-
| [[Elphel_camera_parts_0393-18#0353-18-30_-_tripod_mount_nut.2C_1.2F4-20_thread|0353-18-30 - tripod mount nut, 1/4-20 thread ]] || 10 || 100 ||
|-
| [[Elphel_camera_parts_0393-18#0353-18-31_-_tripod_mount_plate|0353-18-31 - tripod mount plate ]] || 10 || 100||
|-
|}

Please, read the [[Supplier_Terms_and_Conditions|Suppliers Terms and Conditions]] and send the Proposals by e-mail: [mailto://supplies@elphel.com supplies@elphel.com] Olga

Poky 2.0 manual

Mon, 02/01/2016 - 16:25

Setup:

← Older revision Revision as of 23:25, 1 February 2016 Line 40: Line 40: git clone -b master https://github.com/Elphel/meta-elphel393.git meta-elphel393 git clone -b master https://github.com/Elphel/meta-elphel393.git meta-elphel393 - cd meta-elphel393; git checkout 9013e39faac2f99c8dda36244ae8a111c72214e1; cd ..+ cd meta-elphel393; git checkout 2bf73c48be5433002144bc9126bdc9c44b30b98c; cd .. git clone -b master https://github.com/Xilinx/meta-xilinx.git meta-xilinx git clone -b master https://github.com/Xilinx/meta-xilinx.git meta-xilinx Oleg

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