For SPL flow without specifying address for DT loading DTB is automatically
appended behind U-Boot code. Specifically _end symbol is used. Just behind
it there is place for bss section.
It means if early code is using static variable and there is a write to
this variable DTB file is corrupted if variable is located between DTB
start and end.
In this particular case offset of this variable from bss section start is
very small (0x40) that's why DT is currupted which breaks this boot flow.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Linux kernel for arm32 requires dtb and initrd to be placed in low memory
to work properly. This requirement is described in chapter 4b) and 5) in
Linux documentation (Documentation/arm/booting.rst).
There is an issue on arm32 with 2GB of memory that bootm_size is bigger
than Linux lowmem (for example with VMSPLIT_3G). That's why limit bootm
size on these systems not to be above 768MB.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
env_set..() can failed that's why check return status and report it back to
make sure that user is aware that's something went wrong.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
When bootm_low/bootm_size are setup properly there is no need to setup any
initrd_high address. Location for initrd is determined through LMB.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
There is no reason to build private function when
CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET is not defined. There is already weak
function which handles default case properly.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
On system with PL DDR which is placed before PS DDR in DT
env_get_bootm_size() and env_get_bootm_low() without specifying bootm_low
and bootm_size variables are taking by default gd->bd->bi_dram[0].start and
gd->bd->bi_dram[0].size. As you see 0 means bank 0 which doesn't need to be
PS ddr and even can be memory above 39bit VA which is what U-Boot supports
now.
That's why setup bootm variables based on ram_base/ram_size setting to make
sure that boot images are placed to the same location as U-Boot is placed.
This location should be by default location where OS can boot from.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.
Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.
This requires quite a few header-file additions.
Signed-off-by: Simon Glass <sjg@chromium.org>
This function is actually intended to read a string rather than a
property. All of its current callers use it that way. Also there is no way
to return the length of the property from this function.
Rename it to better indicate its purpose, using ofnode_read as the prefix
since this matches most other functions.
Also add some tests which are missing for these functions.
Signed-off-by: Simon Glass <sjg@chromium.org>
OF_BOARD and OF_SEPARATE can use board specific board_fdt_blob_setup().
OF_BOARD option is mostly used for picking up DTB from certain location.
OF_SEPARATE option is used when DTB is appended after u-boot binary.
This board specific function is aligned with current version in
lib/fdtdec.c with checking CONFIG_XILINX_OF_BOARD_DTB_ADDR address first.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The reason for this change is just get in sync with board_fdt_blob_setup()
available at lib/fdtdec.c.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Modify the configuration naming to be generic to xilinx rather than
specific to Versal. The offset value is different for Zynq and ZynqMP
to avoid overlapping with FSBL.
Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Move the exisiting function of getting board dtb from versal to a common
Xilinx folder.
Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
All platforms are converted to DM_I2C that's why there is no reason to
keep this code here.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
It is much easier to point to eeprom which stores information like MAC
address directly via DT. eeprom which contains this information is
pointed by /chosen/xlnx,eeprom parameter.
For example:
chosen {
bootargs = "earlycon";
stdout-path = "serial0:115200n8";
+ xlnx,eeprom = &eeprom;
};
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Zynq and ZynqMP are sharing similar code and there is no reason to do
code duplication. Move zynq_board_read_rom_ethaddr() to common file for
easier conversion to DM.
Use ZynqMP version that's why also add CONFIG_ZYNQ_EEPROM_BUS to Syzygy
which is only one Zynq board which is using this feature.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
