On HS devices the 512b region of reset isolated memory called
MCU_PSRAM0 is firewalled by default. Until SYSFW is loaded we
cannot use this memory. It is only used to store a single value
left at the end of SRAM by ROM that will be needed later. Save
that value to a global variable stored in the .data section.
This section is used as .bss will be cleared between saving
this value and using it.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
When initializing DDR from R5 SPL trigger U-Boot's panic facility
rather than simply returning from the board init function as there
is little point continuing code execution. Further, as panic implies
a board reset, so using it might potentially allow to recover from
this error in certain cases such as when the init failure was caused
by a temporary glitch of some sorts.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Certain parts of msmc sram can be used by DMSC or can be
marked as L3 cache. Since the available size can vary, changing
DT every time the size varies might be painful. So, query this
information using TISCI cmd and fixup the DT for kernel.
Fixing up DT does the following:
- Create a sram node if not available
- update the reg property with available size
- update ranges property
- loop through available sub nodes and delete it if:
- mentioned size is out if available range
- subnode represents l3 cache or dmsc usage.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Perform some cosmetic cleanup of the ATF image startup function, namely
fixing a spelling mistake, capitalization of a few words, spacing, as
well aligning how errors are printed and as using panic() for cases that
were using a combination of printf() + hang().
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Replace CONFIG_SPL_EXT_SUPPORT to CONFIG_SPLY_FS_EXT4 so both
obj-$(CONFIG_$(SPL_)FS_EXT4) and CONFIG_IS_ENABLED(FS_EXT4) can be
used to control the build in both SPL and U-Boot.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Replace CONFIG_SPL_FAT_SUPPORT with CONFIG_SPL_FS_FAT so
obj-$(CONFIG_$(SPL_)FS_FAT) can be used to control the build in both
SPL and U-Boot.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Similar changes was done for Zynq in past and this patch just follow
this pattern to separate cpu code from SoC code.
Move arch/arm/cpu/armv8/zynqmp/* -> arch/arm/mach-zynqmp/*
And also fix references to these files.
Based on
"ARM: zynq: move SoC sources to mach-zynq"
(sha1: 0107f24036)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
For signing the tiboot3.bin image, an optional KEY file can be passed
using CONFIG_SYS_K3_KEY. Right now, Makefile scripts directly takes
the config value and uses it for signing. This is okay if the build
directory is a sub-directory of source tree, otherwise it fails.
Fix it by using the path relative to the source tree.
Reported-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Based on the MCU R5 efuse settings, R5F cores in MCU domain
either work in split mode or in lock step mode.
If efuse settings are in lockstep mode: ROM release R5 cores
and SPL continues to run on the R5 core is lockstep mode.
If efuse settings are in split mode: ROM releases both the R5
cores simultaneously and allow SPL to run on both the cores.
In this case it is bootloader's responsibility to detect core
1 and park it. Else both the core will be running bootloader
independently which might result in an unexpected behaviour.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
In SPL, DDR should be made available by the end of board_init_f()
so that apis in board_init_r() can use ddr. Adding support
for triggering DDR initialization from board_init_f().
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Considering the boot time requirements, Cortex-A core
should be able to start immediately after SPL on R5.
Add support for the same.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Update Makefiles to generate:
- tiboot3.bin: Image format that can be processed by ROM.
Below is the tiboot3.bin image format that is required by ROM:
_______________________
| X509 |
| Certificate |
| ____________________ |
| | | |
| | u-boot-spl.bin | |
| | | |
| |___________________| |
|_______________________|
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
K3 based AM654 devices has DDR memory subsystem that comprises
Synopys DDR controller, Synopsis DDR phy and wrapper logic to
intergrate these blocks into the device. This DDR subsystem
provides an interface to external SDRAM devices. Adding support
for the initialization of the external SDRAM devices by
configuring the DDRSS registers and using the buitin PHY
routines.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Schuyler Patton <spatton@ti.com>
Signed-off-by: James Doublesin <doublesin@ti.com>
Read the boot mode register to find the boot mode. Only use eMMC boot0
mode when the mode is eMMC boot (called BOOT_DEVICE_MMC1 currently due
to current conflating of boot mode and boot device), and not iff the
boot device is MMC port 0.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
For most devices the boot mode maps directly to the boot
device. For MMC this is not the case as we have two MMC
boot modes and two MMC boot devices (ports). Check the
boot port to determine which MMC device was our boot
device. Make this change for both primary and secondary
boot modes.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Add initial support for AM654 based EVM running on A53. Enable
4GB of DDR available on the EVM so that kernel DTB file
can be updated accordingly.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[Andreas: Added 4GB ddr support]
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Update Makefile to generate
- tispl.bin: First stage bootloader on ARMv8 core
- u-boot.img: Second stage bootloader on ARMv8 core.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
By default the device control module registers are locked,
preventing any writes to its registers.
Unlock those registers as part of the init flow.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
AM654 allows for booting from primary or backup boot media.
Both media can be chosen individually based on switch settings.
ROM looks for a valid image in primary boot media, if not found
then looks in backup boot media. In order to pass this boot media
information to boot loader, ROM stores a value at a particular
address. Add support for reading this information and determining
the boot media correctly.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
The AM654 device is designed for industrial automation and PLC
controller class platforms among other applications. Introduce
base support for AM654 SoC.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
