arm-trusted-firmware

15266 Commits

5 Branches

114 Tags

55 MiB

Tree: 97d48be016

Commit Graph

Author	SHA1	Message	Date
Andre Przywara	dee3042cd6	arm_fpga: Read UART address from DT The arm_fpga port requires a DTB, to launch a BL33 payload. To make this port more flexible, we can also use the information in the DT to configure the console driver. For a start, find the DT node pointed to by the stdout-path property, and read the base address from there. This assumes for now that the stdout-path points to a PL011 UART. This allows to remove platform specific addresses from the image. We keep the original base address for the crash console. Change-Id: I46a990de2315f81cae4d7913ae99a07b0bec5cb1 Signed-off-by: Andre Przywara <andre.przywara@arm.com>	5 years ago
Andre Przywara	93bb7a0ac3	arm_fpga: Use Generic UART The SCP firmware on the ARM FPGA initialises the UART already. This allows us to treat the PL011 as an SBSA Generic UART, which does not require any further setup. This in particular removes the need for any baudrate and base clock related settings to be hard coded into the BL31 image. Change-Id: I16fc943526267356b97166a7068459e06ff77f0f Signed-off-by: Andre Przywara <andre.przywara@arm.com>	5 years ago
Oliver Swede	536d906abc	plat/arm/board/arm_fpga: Enable basic BL31 port for an FPGA image This adds the minimal functions and definitions to create a basic BL31 port for an initial FPGA image, in order for the port to be uploaded to one the FPGA boards operated by an internal group within Arm, such that BL31 runs as a payload for an image. Future changes will enable the port for a wide range of system configurations running on the FPGA boards to ensure compatibility with multiple FPGA images. It is expected that this will replace the FPGA fork of the Linux kernel bootwrapper by performing similar secure-world initialization and setup through the use of drivers and other well-established methods, before passing control to the kernel, which will act as the BL33 payload and run in EL2NS. This change introduces a basic, loadable port with the console initialized by setting the baud rate and base address of the UART as configured by the Zeus image. It is a BL31-only port, and RESET_TO_BL31 is enabled to reflect this. Signed-off-by: Oliver Swede <oli.swede@arm.com> Change-Id: I1817ad81be00afddcdbbda1ab70eb697203178e2	5 years ago

Author

SHA1

Message

Date

Andre Przywara

dee3042cd6

arm_fpga: Read UART address from DT

The arm_fpga port requires a DTB, to launch a BL33 payload.
To make this port more flexible, we can also use the information in the
DT to configure the console driver.
For a start, find the DT node pointed to by the stdout-path property, and
read the base address from there.
This assumes for now that the stdout-path points to a PL011 UART.

This allows to remove platform specific addresses from the image. We
keep the original base address for the crash console.

Change-Id: I46a990de2315f81cae4d7913ae99a07b0bec5cb1
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

5 years ago

Andre Przywara

93bb7a0ac3

arm_fpga: Use Generic UART

The SCP firmware on the ARM FPGA initialises the UART already. This allows
us to treat the PL011 as an SBSA Generic UART, which does not require
any further setup.

This in particular removes the need for any baudrate and base clock related
settings to be hard coded into the BL31 image.

Change-Id: I16fc943526267356b97166a7068459e06ff77f0f
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

5 years ago

Oliver Swede

536d906abc

plat/arm/board/arm_fpga: Enable basic BL31 port for an FPGA image

This adds the minimal functions and definitions to create a basic
BL31 port for an initial FPGA image, in order for the port to be
uploaded to one the FPGA boards operated by an internal group within
Arm, such that BL31 runs as a payload for an image.

Future changes will enable the port for a wide range of system
configurations running on the FPGA boards to ensure compatibility with
multiple FPGA images.

It is expected that this will replace the FPGA fork of the Linux kernel
bootwrapper by performing similar secure-world initialization and setup
through the use of drivers and other well-established methods, before
passing control to the kernel, which will act as the BL33 payload and
run in EL2NS.

This change introduces a basic, loadable port with the console
initialized by setting the baud rate and base address of the UART as
configured by the Zeus image.

It is a BL31-only port, and RESET_TO_BL31 is enabled to reflect this.

Signed-off-by: Oliver Swede <oli.swede@arm.com>
Change-Id: I1817ad81be00afddcdbbda1ab70eb697203178e2

5 years ago

3 Commits (97d48be01658adb7859c02a36cf34706483666a2)