linux/Documentation/ABI/testing/sysfs-driver-tegra-fuse
Peter De Schrijver 783c8f4c84 soc/tegra: Add efuse driver for Tegra
Implement fuse driver for Tegra20, Tegra30, Tegra114 and Tegra124. This
replaces functionality previously provided in arch/arm/mach-tegra, which
is removed in this patch.

While at it, move the only user of the global tegra_revision variable
over to tegra_sku_info.revision and export tegra_fuse_readl() to allow
drivers to read calibration fuses.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-07-17 14:36:01 +02:00

12 lines
588 B
Plaintext

What: /sys/devices/*/<our-device>/fuse
Date: February 2014
Contact: Peter De Schrijver <pdeschrijver@nvidia.com>
Description: read-only access to the efuses on Tegra20, Tegra30, Tegra114
and Tegra124 SoC's from NVIDIA. The efuses contain write once
data programmed at the factory. The data is layed out in 32bit
words in LSB first format. Each bit represents a single value
as decoded from the fuse registers. Bits order/assignment
exactly matches the HW registers, including any unused bits.
Users: any user space application which wants to read the efuses on
Tegra SoC's