I2C muxes that have the slave devices with same address are
falling into the below problem.
VCK190 system controller (SC) - zynqmp-e-a2197-00-revA.dts
I2C1 (0xff030000) -> Mux1 (@0x74) -> Channel 3 -> 0x50
I2C1 (0xff030000) -> Mux2 (@0x75) -> Channel 0 -> 0x50
1. SC accesses I2C1 - Mux1 (0x74) - Channel 3 and then
2. SC accesses I2C1 - Mux2 (0x75) - Channel 0.
Now it results in 2 slave devices with same address (0x50)
on the I2C bus, making the communication un-reliable.
When ' i2c-mux-idle-disconnect' is in DT, after '1', the Mux
channel output is disconnected, making none of the channels
available to the I2C1. So, there is no question of having the
same addressed slave (0x50) present on the bus when we are doing '2'.
Same pattern is seen in below two boards also.
ZCU208 - zynqmp-zcu208-revA.dts
ZCU216 - zynqmp-zcu216-revA.dts
Signed-off-by: Raviteja Narayanam <raviteja.narayanam@xilinx.com>
There are several changes which happen in mainline kernel which should get
also to U-Boot. Here is the list of patches from the kernel:
- ARM: zynq: Fix leds subnode name for zc702/zybo-z7
- arm64: dts: zynqmp: Fix leds subnode name for zcu100/ultra96 v1
- arm64: dts: zynqmp: Fix u48 si5382 chip on zcu111
- arm64: dts: zynqmp: Wire up the DisplayPort subsystem
- arm64: dts: zynqmp: Add DisplayPort subsystem
- arm64: dts: zynqmp: Add DPDMA node
- arm64: dts: zynqmp: Enable phy driver for Sata on zcu102/zcu104/zcu106
- arm64: dts: zynqmp: Enable si5341 driver for zcu102/106/111
- arm64: dts: zynqmp: Add DT description for si5328 for zcu102/zcu106
- arm64: dts: zynqmp-zcu100-revC: correct interrupt flags
- arm64: dts: xilinx: align GPIO hog names with dtschema
- arm64: zynqmp: Add Xilinx AES node
- dt: bindings: dma: xilinx: dpdma: DT bindings for Xilinx DPDMA
but also some other changes have been done.
- Using only one compatible string for adxl345 on zturn
- Remove Xilinx internal DP bindings
- Remove USB3.0 serdes configurations
- Remove SATA serdes configuration for zc1232
- Resort nvmem_firmware
- Update nand compatible string
- Aling power-domains property for sd0/1
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
s/xlnx,mio_bank/xlnx,mio-bank/g
DT binding is describing mio-bank not mio_bank that's why fix all DTSes and
also driver itself.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
- Do not use irps54012 as device node which is not correct.
- Fix addresses of irps5401/u180 on zcu104 revisions.
- Remove clock-cells property. It is PMIC without any clock output.
- Define irps5401 nodes in zynqmp-e-a2197
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Modify dts files to add 'no-1-8-v' property for all the ZynqMP boards.
User can remove this property to enable the UHS mode. This is to keep
the same speed (HS) modes across all the stages of the Linux Boot. Due
to power cycling limitation of some of the ZynqMP boards, some SD cards
don't get power cycled and are failing in Linux.
Signed-off-by: Manish Narani <manish.narani@xilinx.com>
The same change has been done for Zynq by commit 1241c72b6db1
("ARM: dts: zynq: replace gpio-key,wakeup with wakeup-source property")
in mainline Linux kernel.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
