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pieeprom-2025-10-08: 2712: Fix accidental set of PM_RSTS bit 5 when stopping watchdog (latest)

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* Fix accidental set of PM_RSTS bit 5 when stopping watchdog
  Fix an issue in the watchdog code where the raw PM_RSTS value
  was used as partition number. If HADWRF (bit 5) was set (on reboot)
  this could cause bit 10 to be set. If an OS didn't clear the partition
  flags on reboot then this could end up being treated as request to
  boot from partition 32.
* pi5: Preliminary support for 4K native sectors with NVMe drives
  Pi5 now supports 4K native sector NVMe drives.
  This allows booting from drives with logical block size 4096,
  while 512B drives remain compatible. With 4K sectors, storage density
  increases along with improved reliability and efficiency.
  N.B. USB boot still requires a 512 byte sector size and there are
  no RPi OS disk images with a 4K sector format.
  See: https://github.com/raspberrypi/rpi-eeprom/issues/577
* arm_dt: Report OTP SDRAM size via device-tree
  Report the SDRAM in gigabits via device-tree as
  /proc/device-tree/chosen/rpi-sdram-size-gbit. Scripts reporting the
  device-capabilities should use this value (if defined) instead of the
  memory-size field in the boardrev row.
This commit is contained in:
Tim Gover
2025-10-08 18:01:30 +01:00
committed by Tim Gover
parent 182cdabfe0
commit 229347e811
3 changed files with 22 additions and 0 deletions
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firmware-2712/release-notes.md
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# Raspberry Pi5 bootloader EEPROM release notes # Raspberry Pi5 bootloader EEPROM release notes
## 2025-10-08: Fix accidental set of PM_RSTS bit 5 when stopping watchdog (latest)
* Fix accidental set of PM_RSTS bit 5 when stopping watchdog
Fix an issue in the watchdog code where the raw PM_RSTS value
was used as partition number. If HADWRF (bit 5) was set (on reboot)
this could cause bit 10 to be set. If an OS didn't clear the partition
flags on reboot then this could end up being treated as request to
boot from partition 32.
* pi5: Preliminary support for 4K native sectors with NVMe drives
Pi5 now supports 4K native sector NVMe drives.
This allows booting from drives with logical block size 4096,
while 512B drives remain compatible. With 4K sectors, storage density
increases along with improved reliability and efficiency.
N.B. USB boot still requires a 512 byte sector size and there are
no RPi OS disk images with a 4K sector format.
See: https://github.com/raspberrypi/rpi-eeprom/issues/577
* arm_dt: Report OTP SDRAM size via device-tree
Report the SDRAM in gigabits via device-tree as
/proc/device-tree/chosen/rpi-sdram-size-gbit. Scripts reporting the
device-capabilities should use this value (if defined) instead of the
memory-size field in the boardrev row.
## 2025-09-25: Apply UART_BAUD in early bootsys UART init (latest) ## 2025-09-25: Apply UART_BAUD in early bootsys UART init (latest)
* Apply UART_BAUD in early bootsys UART init * Apply UART_BAUD in early bootsys UART init