783c8f4c84
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>
12 lines
588 B
Plaintext
12 lines
588 B
Plaintext
What: /sys/devices/*/<our-device>/fuse
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Date: February 2014
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Contact: Peter De Schrijver <pdeschrijver@nvidia.com>
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Description: read-only access to the efuses on Tegra20, Tegra30, Tegra114
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and Tegra124 SoC's from NVIDIA. The efuses contain write once
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data programmed at the factory. The data is layed out in 32bit
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words in LSB first format. Each bit represents a single value
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as decoded from the fuse registers. Bits order/assignment
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exactly matches the HW registers, including any unused bits.
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Users: any user space application which wants to read the efuses on
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Tegra SoC's
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