On Monday, November 23, 2015 at 17:32 UTC+8, Maxime Ripard wrote:

On Mon, Nov 23, 2015 at 10:51:15PM -0800, Sugar Wu wrote:

quoted

On Monday, November 23, 2015 at 8:43:59 PM UTC+8, Maxime Ripard wrote:

quoted

Hi, 

On Mon, Nov 23, 2015 at 09:02:48AM +0100, Josef Gajdusek wrote: 

quoted

Add a node describing the Security ID memory to the 
Allwinner H3 .dtsi file. 

Signed-off-by: Josef Gajdusek <a...@atx.name <javascript:>> 
--- 
 arch/arm/boot/dts/sun8i-h3.dtsi | 7 +++++++ 
 1 file changed, 7 insertions(+) 

diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi 

b/arch/arm/boot/dts/sun8i-h3.dtsi 

quoted

index 0faa38a..58de718 100644 

--- a/arch/arm/boot/dts/sun8i-h3.dtsi 
+++ b/arch/arm/boot/dts/sun8i-h3.dtsi 

@@ -359,6 +359,13 @@ 
                         #size-cells = <0>; 
                 }; 
  
+                sid: eeprom at 01c14000 { 
+                        compatible = "allwinner,sun4i-a10-sid"; 
+                        reg = <0x01c14000 0x400>; 

The datasheet says it's 256 bytes wide, while the size here is of 1kB, 
is it intentional? 

SID memory map is 0x01c14000 ~ 0x01c143FF, include 2048bits efuse space.
H3 efuse space is SID_SRAM, its range is  0x01c14200 ~ +0x100.

Interesting, what is below the 0x200 registers?

Some control register about SID.
offset: 0x40  SID Program/Read Control Register
offset: 0x50  SID Program Key Value Register
offset: 0x60  SID Read Key Value Register
offset: 0x70  \
offset: 0x80  SJTAG Attribute 0 Register
offset: 0x84  SJTAG Attribute 1 Register
offset: 0x88  SJTAG Select Register
offset: 0x90  SID Program Ctrol register for burned timing

Thanks!
Maxime