c3277f8ee8
Add support to read SFR's read-only registers providing the SoC Serial Numbers (SN0+SN1) to userspace. ~ # hexdump -n 8 -e'"%d\n"' /sys/bus/nvmem/devices/atmel-sfr0/nvmem 959527243 371539274 Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com> Tested-by: Tudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Link: https://lore.kernel.org/r/20191004151802.21793-1-kamel.bouhara@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
19 lines
611 B
Plaintext
19 lines
611 B
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config AT91_SOC_ID
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bool "SoC bus for Atmel ARM SoCs"
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depends on ARCH_AT91 || COMPILE_TEST
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default ARCH_AT91
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help
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Include support for the SoC bus on the Atmel ARM SoCs.
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config AT91_SOC_SFR
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tristate "Special Function Registers support"
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depends on ARCH_AT91 || COMPILE_TEST
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help
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This is a driver for the Special Function Registers available on
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Atmel SAMA5Dx SoCs, providing access to specific aspects of the
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integrated memory, bridge implementations, processor etc.
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This driver can also be built as a module. If so, the module
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will be called sfr.
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