RE: [PATCH v1 1/2] efuse: IMG Pistachio eFuse Controller

Hi James,

[...]

quoted

quoted

+    if (offset >= efuse_dev->size)
+            return 0;
+
+    data = readl(efuse_dev->base + round_down(offset, 4));

+    data >>= (offset % 4) * 8;

quoted

+
+    return data; /* Only return the last byte */

quoted

 The last byte? You mean the least significant byte?

Yes, it returns the least significant byte.

Since the return type is u8 the function returns last byte in the resultant data after the right shift operation.
If the user space asks for nth byte (offset = n, where  n = 0 to 15) we will return nth byte from the eFuse shadow RAM.

There are total 128 Bits (16 bytes) of Shadow RAM reserved for eFuse status.

[...]

Regards,
R.Arul Raj

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