SPL recover data section is broken which causes reboot failure on
some i.MX platforms (iMX8QM/iMX95).
The global variable cold_reboot_flag is assigned to weak reset_flag
function which always return 1, so restore never been executed in
warm reboot.
Fixes: 1c37e59bfbba ("arm: armv8: Improve SPL data save and restore implementation")
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Refactor system manager initialization by searching for system manager
alias in Agilex5 device tree instead of manually passing node name to
the device model calling function
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
Agilex5 FSBL is required to disable the power of unused peripheral SRAM
blocks to reduce power consumption.
Introducing a new power manager driver for Agilex5 which will be called
as part of Agilex5 SPL initialization process.
This driver will read the peripheral handoff data obtained from the
bitstream and will power off the specified peripheral's SRAM from the
handoff data values.
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
Send out "HPS_STAGE_NOTIFY" mailbox command to the
Secure Device Manager (SDM) in SPL to inform SDM on
FSBL execution.
This is necessary for the SDM to recognize that the
FSBL stage has begun its execution and should be
made as early as possible in the FSBL process.
Therefore, the mailbox will initialize and send out
the notification right after the completion of timer
initialization.
Signed-off-by: Mahesh Rao <mahesh.rao@altera.com>
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
Introduce a new symbol in the beginning of .data section in
the common ARMv8 linker script and use that as a reference
for data save and restore.
Previously, the code would rely on calculating the start of
the .data section address via data size, however, we observed
that the data size does not really reflect the SPL mapped
addresses.
In our case, the binman_sym section size was not included in
the data size, which will result in a wrong address for the
.data start section, which prevents us from properly saving
and restoring SPL data.
This approach skips the calculation for the starting address
of the .data section, and instead just defines the beginning
address of the .data section and calling the symbol as needed,
in which we think as a simpler and much more robust method.
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Signed-off-by: Tien Fong Chee <tien.fong.chee@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
