Version History

ATTENTION: Since V1.3.0.0 of the 2nd Stage Loader, parameters can only be
           configured through the tag list using Hilscher Tag List Editor.
           Patching parameters using Bootwizard has been removed and is not
           supported anymore.

V1.8.0.0 (07.03.2022)
-----------------
Change:
 - Cypress S25FL064 FLASH now only for netX52 and detection via internal list and not SFDP

Bugfix:
 - Fixed SFDP detection for netX100/netX500

V1.7.0.0 (20.10.2020)
-----------------
Added:
 - Added FSU support for SQI FLASH devices found via SFDP

Change:
 - Set default SQI frequency of FLASH devices found via SFDP to 80MHz
 - Set default SPI frequency of FLASH devices in internal list to 25MHz

Bugfix:
 - Fixed FLASH file read error when file size is a multiple of the sector size
 - Skip firmware validation for Evaluation Boards

V1.6.0.1 (25.03.2019)
-----------------
Bugfix:
 - Disable I2C SCL on startup of BSL (for netX51/netX52)

V1.6.0.0 (16.07.2018)
-----------------
Changed:
 - Change order of FLASH detection to: Custom flash, interal list, SFDP detection
 - Removed obsolete flash types from internal list
   Flash types still available in internal list: W25Q32, W25Q64, W25Q128, AT45DB321C/D/E, AT45DB642D

V1.5.2.0 (11.07.2018)
-----------------
Added:
 - Detection of slot number for CIFX-CCLIES PC Cards

V1.5.1.0 (11.04.2018)
-----------------
Bugfix:
 - Missing SPI initialization when using custom serial flash parameters from tag list

V1.5.0.0 (20.03.2018)
-----------------
Added:
 - Support for automatic serial flash detection via SFDP (50 MHz max speed)
    ATTENTION: SFDP Version 1.5 must be supported by flash.
               Some SQI Flashes (e.g. Microchip SST) don't work as they need
               special command for writing which are not available in SFDP,
               or they don't comply to SFDP specification (8dummy cycles in query)
               after reprogramming number of dummy cycles in 4-Bit mode (e.g. Cypress)
 - New tag list entry TAG_BSL_SQIFLASH_PARAMS for custom SQI flash parameter
 - New tag list entry TAG_BSL_FLASH_LAYOUT_PARAMS which replaces TAG_BSL_DISK_POS_PARAMS
   and TAG_BSL_BACKUP_POS_PARAMS

V1.4.18.0 (26.10.2016)
-----------------
Added:
 - Support for Winbond W25Q64 serial flash

Bugfix:
 - RCX_FILE_XFER_SERIAL_FLASH does not work if file-system cannot be mounted, but flash was detected
 - Serial flash detection does not work, if flash is in wrong state at startup
 - Use netX52 as RAM Based device not working

V1.4.17.1 (07.04.2015)
-----------------
Bugfix:
 - Firmware validation does not work on netX10/51/52 running in XiP/SQIROM mode,
   if no security memory is present and taglist entries for HW data are used
   (A wrong firmware may be downloaded and will illegally be started)

V1.4.17.0 (30.09.2014)
-----------------
Changed:
 - netX51/52: Introduce separate 2nd Stage Loader binary for each chip type
 - netX52: 2nd Stage Loader binary uses SQIROM by default

Added:
 - netX51/52: Added flag to hardware parameters to tell the firmware, that a valid flash device label has been found
 - Pass MAC-Address via hardware parameters to firmware

Bugfix:
 - netX51/52: MMIO configuration gets corrupted if break signal is initiated on the UART during startup phase
 - SD cards which do not respond to mandatory command CMD1 (SEND_OP_COND) are rejected
 - netX52: UART boot mode broken due to invalid default MMIO configuration
 - netX100/500: Error during license check may stall bootloader in startup phase
 - SD/MMC restore operation creates invalid short filename if extension of long filename has fewer than 3 characters
 - netX50/51/52: System channel signals system error although security memory is disabled via tag list
 - Restore operation creates corrupt files on target media if backup size exceeds target capacity

V1.4.16.0 (19.02.2014)
----------------------
Bugfix:
 - netX51/52: DPM settings for DPM_IF_CFG and address comparator in DPM_ADDR_CFG are not setup correctly

V1.4.15.0 (28.01.2014)
----------------------
Added:
 - netX51/52: Support for device label stored in last flash sector

V1.4.14.0 (06.01.2014)
----------------------
Bugfix:
 - Self-Flashing Option does not work for flashes not supporting single page erase, but only sector erase
 - netX10/50/51: After software reset security memory access may be 10times slower depending on used firmware

V1.4.13.0 (02.10.2013)
----------------------
Changed:
 - netX51/52: 8/16 Bit DPM mode detection pin updated
    netX50    compatibility mode   WIF=HIF PIO35 / D17
    netX51/52 native mode          WIF=SIRQ
 - netX51/52: DPM configuration registers (IRQ enable, reset, etc.) are now shown at end of 64kB DPM (default configuration)
 - Parallel flash from Manufacturer other than Intel/Spansion are not detected

Added:
 - netX51/52: Allow booting firmware to internal RAM with following limitations:
    * Firmware must be loaded beyond the 2nd Stage loader (current limit is 96kB Offset from start of INTRAM0)
    * Firmware must be located between 96kB of INTRAM start and start of INTRAM7
    * Maximum used RAM size during load must not exceed 416kB
 - Passing of bHwAssemblyFeatures in boottokens
 - Support for AT45DB312E (only test first 2 bytes of JEDEC identifier)

Bugfix:
 - Some MMC4.x cards might not be recognized correctly

V1.4.12.0 (12.06.2013)
----------------------
Bugfix:
 - MMIO Pins for UART may not be set to UART function if a spurious BREAK is detected
   (RXD low on HW during startup)
 - Some / Older MMC cards may not work, if they need longer for CMD8 (SEND_OPCOND).
   Observed with old 64MB cards delivered with some evaluation boards

V1.4.11.0 (29.04.2013)
----------------------
 - Reduced maximum serial flash clock speeds for Winbond W25QXXX from 80 to 33 MHz in standard read mode
 - netX52: Disable netX50 compatibility mode to ensure external SDRAM and SPI DPM
           works at the same time
           ATTENTION: Wrong wiring may cause permanent hardware damage
 - netX52: Default USB ProductID is automatically adjusted to 0x200 if netX52 is being detected
 - SDHC/SDXC support added (may not work for all available cards, if they don't support SPI interface)
 - Boottoken list contains a broken token on hardwares without security memory,
   which results in a unparsable tokenlist

V1.4.10.0 (21.12.2012)
----------------------
Bugfix:
 - netX51 MMIO settings passed via taglist are not evaluated
 - netX51 HIF parameters passed via taglist are not evaluated
 - netX10/51 Automatic serial DPM detection changes memory
   interface configuration unintentionally
 - Firmware validation does not work on netX10/51 running in XiP/SQIROM mode
   (A wrong firmware may be downloaded and will illegally be started)
 - RCX_HW_IDENTIFY_REQ now also detects netX52

Added:
 - 2nd Stage Loader version information is now passed to firmware via boottoken
 - netX52 support

V1.4.9.0 (11.07.2012)
---------------------
Added:
 - netX51 support
 - Allow customer specific serial flash via taglist (ATTENTION: This flash must
   support page erase to work)
 - Pass serial flash parameters to firmware via tokenlist
 - Support for Winbond W25Q128 serial flash

Bugfix:
 - netX100/500 MRAM may not be accessible to due a netX bug

V1.4.8.0 (06.02.2012)
---------------------
Changed:
 - netX10 DPM auto-detection changed to support serial DPM via DIRQ pin. See the
   following truth table:
       DIRQ   SIRQ    Mode
        0      X      Serial DPM (Mode 3)
        1      0      Parallel DPM (16 Bit)
        1      1      Parallel DPM (8 Bit)

V1.4.7.0 (16.01.2012)
---------------------
Bugfix:
 - Firmwares ending on a cluster boundary (filesize is a multiple of cluster size)
   are not started.

V1.4.6.0 (16.12.2011)
---------------------
Changed:
 - Disable USB at start to allow host to detect disconnection during restart
 - MRAM data is now inserted into System Status Block of DPM

Bugfix:
 - MRAM may not be mapped correctly

V1.4.5.0 (06.12.2011)
---------------------
Added:
 - Mapping of PCI target 2 (MRAM on 2nd memory bar)
 - netX10: USB communication changed to prevent FIFO problems (now using special protocol over USB).
   ATTENTION: This needs a special USB Driver (netx10ser.sys V6.0.2.0 or later)

V1.4.4.0 (16.09.2011)
---------------------
Bugfix:
 - netX10: Host interrupt was not correctly enabled for DPM Targets.
 - netX10: Host handshake cells were not zeroed correctly on system start (NSF_RESET)
 - netX10: Backup Partition did not work in SQIROM Mode
 - netX10: SDRAM Parameters from Taglist may not be used, depending on tag list element order
           (HIF and SDRAM depend on each other)
 - Bootloader update on SQI Flashes that don't support Page Erase does not work

Changed:
 - netX10: Generic 2nd Stage Loader binary now always uses SQIROM mode
           (pre-activated in taglist)

V1.4.3.0 (14.09.2011)
---------------------
Added:
 - BOOTTOKEN_HARDWARE_FLAGS_CUSTOM_MMIO_MAPPING is now passed to firmware in
   Boottoken BOOTTOKEN_HARDWARE_FLAGS, to tell the firmware a custom MMIO
   mapping has already been setup by 2nd Stage Loader and Firmware does not
   need to change it again

Bugfix:
 - netX50 may erroneously detect a break signal on fiber-optics hardware
   and enters serial boot mode instead of starting the firmware or correctly
   returning from a system reset via DPM

 - netX50 UART does not work if Fast-Startup mode is not enabled due to wrong
   MMIO configuration

Changed
 - UART is now checked for incoming transport packets in main loop. This allows
   to talk via UART with the 2nd Stage Loader even without asserting a break signal
   at coldstart
   ATTENTION: If a connection established via UART/USB/DPM all other connections
              will be disabled. This means if a connection via UART is established
              no access via DPM or USB will be possible until device being reset

V1.4.2.0 (11.08.2011)
---------------------
Changed:
 - All DPM Windows are now disable before firmware is started. This makes sure that the firmware
   can use the internal RAM for code/data completely, without the host destroying program code,
   before new DPM mapping is set up
 - USB core is now always disabled before firmware is started
 - AIFX now read with 4kHz
 - netX10 DPM timings updated for comX compatibility

Added:
 - RCX_FORMAT_REQ added to format flash disk
 - Restore from SD/MMC card will restore files to serial flash disk,
   even when default medium is set to par. flash.
 - new MMIO pinning for fast startup added (selectable via Tag List Editor)
 - Support for SPI flash Numonyx M45PE16
 - Support for Backup Partition (netX50/100, or netX10 with SDRAM). Currently not supported for netX10 SQIROM Mode

Bugfix:
 - 2nd Stage Loader may write to flash when booting a firmware
 - Creating default filesystem may fail after first reset (yellow LED permanent on)

V1.4.1.0 (22.11.2010)
---------------------
Bugfix:
 - SDRAM Parameters from TAG List may be ignored
 - Parallel Flash mode was always expecting a XiP Firmware
 - AIFX Modules may not work correctly

Changed:
 - Reset SYSTIME unit to power on defaults for netX10
 - Reducing MAX Frequency of AT45DB642D to 25/33MHz as 50MHz does not work on every HW design

V1.4.0.0 (26.10.2010)
---------------------
 Added:
  - netX10 support
  - MMIO configuration added to Taglist
  - USB descriptor added to Taglist
  - Disk position and offset added to Taglist

V1.3.1.0 (03.08.2010)
---------------------
 Added:
  - Packets to read/write physical addresses

V1.3.0.0 (11.11.2009)
---------------------
 Added:
  - Filesystem type can now be configured through security memory zone 1,
    starting with structure revision 3
  - Rotary Switches are always read if Security Memory contains DEV_CLASS_CIFX (for every manufacturer)

 Bugfix:
  - Slow SDMMC cards were sometimes not correctly detected

V1.0.0.0 (05.11.2009)
--------------------------
 Added:
  - Firmwarevalidation according to Hilscher Firmware startup concept

V0.915 (31.07.2009)
--------------------------
 Added:
  - Additional packets added:
    * RCX_HW_HARDWARE_INFO_REQ
   	* RCX_HW_LICENSE_INFO_REQ
   	* RCX_SYSTEM_INFORMATION_BLOCK_REQ
   	* RCX_CHANNEL_INFORMATION_BLOCK_REQ
   	* RCX_SYSTEM_CONTROL_BLOCK_REQ
   	* RCX_SYSTEM_STATUS_BLOCK_REQ
  - Tag list included for configuration
  - Parallel Flash support, without filesystem added
  - Support for USB Enable pin added (via Tag list)
  - Support for PCI Enable pin added (via Tag list)
  - ISA Mode added
  - Rotary switch support for cifX 50 added
  - New filed added in system status block (ulBootError) to show why a firmware has not been booted

Known Bugs:
 - Taglist is not yet working correctly. Bugfix needed.

V0.914 (FSU Release)
-------------------
 Added:
  - HilFileHeader V3 included
  - PCI support (cifX, .NFX files only)
  - RAM Based device support (when no flash is available)
    This feature needs the cifX Toolkit which downloads all neccessary files at runtime
  - Additional Bootheaders parameter (ulUserParams)
     * Bitmask
     		BOOTLOADER_FORCE_RAMDISK 	0x10
     		BOOTLOADER_FORCE_SERFLASH 0x20
     		BOOTLOADER_FORCE_PARFLASH 0x40
     * BOOTLOADER_FORCE_NXF_SDRAM_PARAMS (0x200), to force usage of SDRAM parameters from .NXF file
     * BOOTLOADER_FORCE_FLASHING (0x80) to force flashing when loaded via DPM/PCI
	- SD/MMC update support added (can be used to restore the flash file system)

 Changed:
  - When UART is enabled and a break is being detected, the bootloader will only enter
    the serial console if the break signal goes away within 100ms after sending a zero character
  - SDRAM Parameter usage order changed
     1. Crypto flash (always used if available)
     2. Bootloader header (only used when no cryptoflash is available)
     3. .NXF file header (only used when neither crypto nor bootheader contains SDRAM information)

V0.913 (04.12.2008)
-------------------
 Changed:
  - Bootheaders user parameter is now evaluated and used to disable bootloader interfaces
    It contains a mask of disabled interfaces
     * 0x01 = UART
     * 0x02 = USB
     * 0x04 = HIF
 Bugfix:
  - Cryptoflash read/write does expect inverted data anymore, so the user can just pass
  	the raw data structure (as described in manual)
  - Cryptoflash write did not work (wrong buffer was written)
  - Download in extended Mailbox did only use the first 80 byte chunks for data transfer
 Added:
  - Restore Flash File System from SD/MMC
  - Enable Flash File System Restore from SD/MMC in User Flags
  - Configure SD/MMC Insertion pin in User Flags
  - License Download

V0.912 (25.04.2008)
-------------------
 Bugfix:
  * netX100/500
   - Cryptoflash license code readout could result in total netX crash (due to internal XC problems)

V0.911 (18.04.2008)
-------------------
 Bugfix:
  - Buffer overflow in Serial/USB communication fixed
  - Bootloader did not enter HIF mode, if first host action was a Reset via DPM
  - USB connection was only checked once, and entered HIF Boot mode afterwards.
  - Reading crypto flash always returned invalid CRC, causing SDRAM Parameters can only be used from NXF file
    and not from crypto.
  - DPMAS_IFCONF1 was not written correctly for standard configuration
  - Removed incompatible serial Flash types (which do not support "page erase" or "page erase and program" opcode
  - USB did abort packet transfer due to internal core problems

 Changed:
  - Per Default only GPIO0 (netx100/500) or MMIO34 (netX50) is placed in Uart RXD state.
    TXD/(GPIO1 or MMIO35) is only enabled, if a break signal is detected on the serial line.
    GPIO2/3 or MMIO36/37) (CTS/RTS) are never used
  - Only try to read crypto flash license codes, if it was detected before
  - Changed Name to "Second Stage Loader (netX100/500)" and "Second Stage Loader (netX50)"

  * netX50
   - Only try to detect crypto flash if we are in PCI Bootmode (external SYSSTA value)

 Added:
  - netX50 support (MMIO's will be kept in default configuration)
  - Hilscher file header added

TODO:
  - License code readout for netX50 (currently not possible)

V0.910 (18.02.2008)
-------------------
Changed:
 - The default DPM Timings have changed, to meet the comX requirements.
   The following settings have changed (if no special parameters are patched):

Bugfix:
 - RCX_FILE_XFER_SERIAL_FLASH did not work if the pagesize if the serial flash
   is larger than mailbox/block size
 - Extended Mailbox did not work, as it internally expected 16 Bit Handshake cells

WAIT_DRV        1 : Push/pull output
WAIT_MODE       0 : WAIT / BUSY mode function. A active signal shows the the host system that the current access is not ready.
WAIT_POLARITY   0 : low active polarity output
IRQ_MODE        2 : Push / pull output
IRQ_POLARITY    0 : low active polarity output

V0.905 (13.09.2007)
-------------------
Bugfix:
 - Error when trying to mount a filesystem on serial flashes with page size < 512 bytes
 - Enable IRQ mask adjusted to channel specific interrupts (loader did enable all IRQs before)

V0.904 (27.07.2007)
-------------------
Added:
 - Download via DPM will flash the boot loader to serial flash
 - Update via DPM (rcX Packet Download to serial flash)
 - Enter boot loader mode from FW/ROM Loader (via bit in host handshake flags)

V0.903 (04.06.2007)
-------------------
Bugfix:
 - Download errors were overwritten by TLR_E_FAIL and did not reflect the real error reason

V0.902 (internal Development version)
-------------------
Bugfix:
 - Flashes with page size < 512 bytes did not work (e.g. DB500SYS)

V0.901 (02.05.2007)
-------------------
Bugfix:
 - Sequence error in up-/download if the filelength is multiple of transfer block size

V0.900 (25.04.2007)
-------------------
 - initial version