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2a37ce25d9
The new of_get_nvmem_mac_address() helper function causes a link error
with CONFIG_NVMEM=m:
drivers/of/of_net.o: In function `of_get_nvmem_mac_address':
of_net.c:(.text+0x168): undefined reference to `of_nvmem_cell_get'
of_net.c:(.text+0x19c): undefined reference to `nvmem_cell_read'
of_net.c:(.text+0x1a8): undefined reference to `nvmem_cell_put'
I could not come up with a good solution for this, as the code is always
built-in. Using an #if IS_REACHABLE() check around it would solve the
link time issue but then stop it from working in that configuration.
Making of_nvmem_cell_get() an inline function could also solve that, but
seems a bit ugly since it's somewhat larger than most inline functions,
and it would just bring that problem into the callers. Splitting the
function into a separate file might be an alternative.
This uses the big hammer by making CONFIG_NVMEM itself a 'bool' symbol,
which avoids the problem entirely but makes the vmlinux larger for anyone
that might use NVMEM support but doesn't need it built-in otherwise.
Fixes: 9217e566bdee ("of_net: Implement of_get_nvmem_mac_address helper")
Cc: Mike Looijmans <mike.looijmans@topic.nl>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mike Looijmans
Signed-off-by: David S. Miller <davem@davemloft.net>
179 lines
5.4 KiB
Plaintext
179 lines
5.4 KiB
Plaintext
menuconfig NVMEM
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bool "NVMEM Support"
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help
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Support for NVMEM(Non Volatile Memory) devices like EEPROM, EFUSES...
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This framework is designed to provide a generic interface to NVMEM
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from both the Linux Kernel and the userspace.
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This driver can also be built as a module. If so, the module
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will be called nvmem_core.
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If unsure, say no.
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if NVMEM
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config NVMEM_IMX_IIM
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tristate "i.MX IC Identification Module support"
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depends on ARCH_MXC || COMPILE_TEST
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help
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This is a driver for the IC Identification Module (IIM) available on
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i.MX SoCs, providing access to 4 Kbits of programmable
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eFuses.
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This driver can also be built as a module. If so, the module
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will be called nvmem-imx-iim.
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config NVMEM_IMX_OCOTP
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tristate "i.MX6 On-Chip OTP Controller support"
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depends on SOC_IMX6 || COMPILE_TEST
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depends on HAS_IOMEM
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help
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This is a driver for the On-Chip OTP Controller (OCOTP) available on
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i.MX6 SoCs, providing access to 4 Kbits of one-time programmable
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eFuses.
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This driver can also be built as a module. If so, the module
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will be called nvmem-imx-ocotp.
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config NVMEM_LPC18XX_EEPROM
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tristate "NXP LPC18XX EEPROM Memory Support"
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depends on ARCH_LPC18XX || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Say Y here to include support for NXP LPC18xx EEPROM memory found in
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NXP LPC185x/3x and LPC435x/3x/2x/1x devices.
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To compile this driver as a module, choose M here: the module
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will be called nvmem_lpc18xx_eeprom.
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config NVMEM_LPC18XX_OTP
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tristate "NXP LPC18XX OTP Memory Support"
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depends on ARCH_LPC18XX || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Say Y here to include support for NXP LPC18xx OTP memory found on
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all LPC18xx and LPC43xx devices.
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To compile this driver as a module, choose M here: the module
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will be called nvmem_lpc18xx_otp.
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config NVMEM_MXS_OCOTP
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tristate "Freescale MXS On-Chip OTP Memory Support"
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depends on ARCH_MXS || COMPILE_TEST
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depends on HAS_IOMEM
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help
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If you say Y here, you will get readonly access to the
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One Time Programmable memory pages that are stored
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on the Freescale i.MX23/i.MX28 processor.
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This driver can also be built as a module. If so, the module
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will be called nvmem-mxs-ocotp.
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config MTK_EFUSE
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tristate "Mediatek SoCs EFUSE support"
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depends on ARCH_MEDIATEK || COMPILE_TEST
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depends on HAS_IOMEM
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help
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This is a driver to access hardware related data like sensor
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calibration, HDMI impedance 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 efuse-mtk.
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config QCOM_QFPROM
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tristate "QCOM QFPROM Support"
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depends on ARCH_QCOM || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Say y here to enable QFPROM support. The QFPROM provides access
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functions for QFPROM data to rest of the drivers via nvmem interface.
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This driver can also be built as a module. If so, the module
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will be called nvmem_qfprom.
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config ROCKCHIP_EFUSE
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tristate "Rockchip eFuse Support"
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depends on ARCH_ROCKCHIP || COMPILE_TEST
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depends on HAS_IOMEM
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help
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This is a simple drive to dump specified values of Rockchip SoC
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from eFuse, such as cpu-leakage.
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This driver can also be built as a module. If so, the module
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will be called nvmem_rockchip_efuse.
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config NVMEM_BCM_OCOTP
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tristate "Broadcom On-Chip OTP Controller support"
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depends on ARCH_BCM_IPROC || COMPILE_TEST
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depends on HAS_IOMEM
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default ARCH_BCM_IPROC
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help
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Say y here to enable read/write access to the Broadcom OTP
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controller.
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This driver can also be built as a module. If so, the module
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will be called nvmem-bcm-ocotp.
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config NVMEM_SUNXI_SID
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tristate "Allwinner SoCs SID support"
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depends on ARCH_SUNXI
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help
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This is a driver for the 'security ID' available on various Allwinner
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devices.
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This driver can also be built as a module. If so, the module
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will be called nvmem_sunxi_sid.
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config UNIPHIER_EFUSE
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tristate "UniPhier SoCs eFuse support"
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depends on ARCH_UNIPHIER || COMPILE_TEST
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depends on HAS_IOMEM
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help
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This is a simple driver to dump specified values of UniPhier SoC
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from eFuse.
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This driver can also be built as a module. If so, the module
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will be called nvmem-uniphier-efuse.
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config NVMEM_VF610_OCOTP
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tristate "VF610 SoC OCOTP support"
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depends on SOC_VF610 || COMPILE_TEST
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depends on HAS_IOMEM
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help
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This is a driver for the 'OCOTP' peripheral available on Vybrid
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devices like VF5xx and VF6xx.
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This driver can also be build as a module. If so, the module will
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be called nvmem-vf610-ocotp.
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config MESON_EFUSE
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tristate "Amlogic Meson GX eFuse Support"
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depends on (ARCH_MESON || COMPILE_TEST) && MESON_SM
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help
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This is a driver to retrieve specific values from the eFuse found on
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the Amlogic Meson GX SoCs.
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This driver can also be built as a module. If so, the module
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will be called nvmem_meson_efuse.
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config MESON_MX_EFUSE
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tristate "Amlogic Meson6/Meson8/Meson8b eFuse Support"
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depends on ARCH_MESON || COMPILE_TEST
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help
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This is a driver to retrieve specific values from the eFuse found on
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the Amlogic Meson6, Meson8 and Meson8b SoCs.
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This driver can also be built as a module. If so, the module
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will be called nvmem_meson_mx_efuse.
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config NVMEM_SNVS_LPGPR
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tristate "Support for Low Power General Purpose Register"
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depends on SOC_IMX6 || COMPILE_TEST
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help
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This is a driver for Low Power General Purpose Register (LPGPR) available on
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i.MX6 SoCs in Secure Non-Volatile Storage (SNVS) of this chip.
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This driver can also be built as a module. If so, the module
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will be called nvmem-snvs-lpgpr.
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endif
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