Re: [PATCH v8 2/3] dt-bindings: mtd: Add a property to declare secure regions in NAND chips

2021-03-23 Thread Rob Herring
On Tue, 23 Mar 2021 13:09:29 +0530, Manivannan Sadhasivam wrote: > On a typical end product, a vendor may choose to secure some regions in > the NAND memory which are supposed to stay intact between FW upgrades. > The access to those regions will be blocked by a secure element like > Trustzone. So

[PATCH v8 2/3] dt-bindings: mtd: Add a property to declare secure regions in NAND chips

2021-03-23 Thread Manivannan Sadhasivam
On a typical end product, a vendor may choose to secure some regions in the NAND memory which are supposed to stay intact between FW upgrades. The access to those regions will be blocked by a secure element like Trustzone. So the normal world software like Linux kernel should not touch these region