u-boot.git/arch/powerpc/dts, branch master

dts: Deduplicate dtbs target

2024-10-15T01:32:04+00:00

The dtbs: target is almost identical in all architecture Makefiles.
All architecture Makefiles include scripts/Makefile.dts . Deduplicate
the dtbs: target into scripts/Makefile.dts . No functional change.

Reviewed-by: Sumit Garg 
Signed-off-by: Marek Vasut 
Reviewed-by: Simon Glass 
Tested-by: Caleb Connolly  #qcom, OF_UPSTREAM

powerpc: Add support for CZ.NIC Turris 1.x routers

2024-07-12T19:07:43+00:00

Add support for CZ.NIC Turris 1.x routers.

CZ.NIC Turris 1.0 (RTRS01) and 1.1 (RTRS02) are open source routers, they
have dual-core PowerPC Freescale P2020 CPU and are based on reference
Freescale P2020RDB-PC-A board design.

Hardware design is fully open source, all firmware and hardware design
files are available at Turris project website:

https://docs.turris.cz/hw/turris-1x/turris-1x/
https://project.turris.cz/en/hardware.html

The P2020 BootROM can load U-Boot either from NOR flash or from SD card.
We add the new defconfigs, turris_1x_nor_defconfig, which configures
U-Boot for building the NOR image, and turris_1x_sdcard_defconfig, which
configures U-Boot for building an image suitable for SD card.

The defconfig for NOR image is stripped-down a - many config options
enabled in SD defconfig are disabled for NOR defconfig. This is because
U-Boot grew non-trivially in the last two years and it would not fit
into the space allocated for U-Boot in the NOR memory. In the future we
may try to use LTO to reduce the size of the code and enable more
options.

The design of CZ.NIC Turris 1.x routers is based on Freescale P2020RDB-PC-A
board, so some code from boards/freescale/p1_p2_rdb_pc is used and linked
into Turris 1.x board code.

Turris 1.x code in this patch uses modern distroboot and can boot Linux
kernel from various locations, including NAND, SD card, USB flash disks,
NVMe disks or SATA disks (connected to extra SATA/SCSI PCIe controllers).
Via distroboot is implemented also rescue NOR boot for factory recovery,
triggered by reset button, like on other existing Turris routers.

SD boot with RAM larger than 2GB will only allocate 2GB of RAM (We were
not able to fix this yet)

[ Because various CONFIG_ macros were migrated to Kconfig since the last
  time this worked on upstream U-Boot (in 2022), a non-trivial rebasing
  was needed and some issues were solved. ]

Signed-off-by: Pali Rohár 
Signed-off-by: Marek Mojík 
Reviewed-by: Marek Behún

board: cssi: Load FPGA on MCR3000 board

2024-04-18T13:47:46+00:00

Unlike CMPC885 and CMPCPRO boards, the FPGA of MCR3000 board doesn't
load code automatically but needs to be loaded by software through SPI.

Until now it was loaded later by Linux, but we'd like U-boot to have
access to some information that require the FPGA, like board address
in racks.

So, implemented the load of FPGA in U-boot.

Signed-off-by: Christophe Leroy 
---
To avoid spamming your email boxes, the code isn't included in
the emailed patch but will be present in the PULL request

board: cssi: add support for reading temperature

2024-04-18T13:47:46+00:00

All CSSI boards have an LM74 chip as temperature sensor.

Enable it.

Signed-off-by: Christophe Leroy

board: cssi: Add support for SPI bus on MCR3000 board

2024-04-18T13:47:46+00:00

MCR3000 board has some components tied to the SPI bus, like the Texas
Instruments LM74 temperature sensor.

Add support for SPI bus. The SPI chipselects are a bit special in the
way that they are driven by 3 bits in a register of the board's CPLD
where the value writen in those bits exclusively activates one of the
7 possible chipselects and value 0 sets all chipselets to inactive.

So add a special GPIO driver that simulates GPIOs for those chipselect.

Signed-off-by: Christophe Leroy

board: cssi: Fix SPI nodes in DTS

2024-04-18T13:47:46+00:00

When adding additional SPI peripherals, the reg property needs to
be added, and this leads to the following error:

  arch/powerpc/dts/cmpc885.dtb: Warning (reg_format): /immr@ff000000/spi@aa0/temp@1:reg: property has invalid length (4 bytes) (#address-cells == 1, #size-cells == 1)
  arch/powerpc/dts/cmpc885.dtb: Warning (reg_format): /immr@ff000000/spi@aa0/temp@2:reg: property has invalid length (4 bytes) (#address-cells == 1, #size-cells == 1)

Fix it by removing cell-index and cell-size which is unused and add
reg property. Also fix node name to be in line with reg value.
Also add missing compatible for eeprom node.

Signed-off-by: Christophe Leroy

powerpc: dts: t1024rdb: tag serial nodes with bootph-all

2023-07-13T08:54:59+00:00

Make sure the serial driver is initialized before relocation by tagging
the serial nodes with "bootph-all". Add these u-boot specific properties
to an *-u-boot.dtsi file.

Signed-off-by: Camelia Groza 
Signed-off-by: Peng Fan

powerpc: dts: t1024rdb: add serial nodes

2023-07-13T08:54:56+00:00

Add the serial node descriptions similar to Linux v6.4 for the
t1024rdb board and its dependencies.

Signed-off-by: Camelia Groza 
Signed-off-by: Peng Fan

powerpc: dts: t1042d4rdb: tag serial nodes with bootph-all

2023-07-13T08:54:44+00:00

Make sure the serial driver is initialized before relocation by tagging
the serial nodes with "bootph-all". Add these u-boot specific properties
to an *-u-boot.dtsi file.

Signed-off-by: Camelia Groza 
Signed-off-by: Peng Fan

powerpc: dts: t1042d4rdb: add serial nodes

2023-07-13T08:54:41+00:00

Add the serial node descriptions similar to Linux v6.4 for the
t1042d4rdb board and its dependencies.

Signed-off-by: Camelia Groza 
Signed-off-by: Peng Fan