Can we use same peripheral in secure and non secure world simultaneoulsy ?

Ok, but software will configure some hardware IP to partition the memory address space of device.

Like if we want to partition the DDR in secure and non secure, software program TZASC, Which H/W IP will be programmed to separate  device address space ?

Thanks

Ok, but software will configure some hardware IP to partition the memory address space of device.

Like if we want to partition the DDR in secure and non secure, software program TZASC, Which H/W IP will be programmed to separate  device address space ?

Thanks

depends on the design of the peripheral 

if it has already multiple registers then there is nothing to configure in the peripheral since those different addresses are mapped by the security regions

if the peripheral does not have distinct registers then it will most likely need to be configured in order to support this secure/non secure access

if not, then you would need support in the driver to handle this secure non secure access

Thanks a lot Diya,

welcome !