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path: root/arch/m68k/atari/nvram.c
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2019-01-22m68k: Dispatch nvram_ops calls to Atari or Mac functionsFinn Thain
A multi-platform kernel binary has to decide at run-time how to dispatch the arch_nvram_ops calls. Add a platform-independent arch_nvram_ops struct for this, to replace the atari-specific one. Enable CONFIG_HAVE_ARCH_NVRAM_OPS for Macs. Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-22m68k/atari: Implement arch_nvram_ops methods and enable ↵Finn Thain
CONFIG_HAVE_ARCH_NVRAM_OPS Atari RTC NVRAM uses a checksum so implement the remaining arch_nvram_ops methods for the set_checksum and initialize ioctls. Enable CONFIG_HAVE_ARCH_NVRAM_OPS. Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-22m68k/atari: Implement arch_nvram_ops structFinn Thain
By implementing an arch_nvram_ops struct, a platform can re-use the drivers/char/nvram.c module without needing any arch-specific code in that module. Atari does so here. Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-22nvram: Replace nvram_* function exports with static functionsFinn Thain
Replace nvram_* functions with static functions in nvram.h. These will become wrappers for struct nvram_ops method calls. This patch effectively disables existing NVRAM functionality so as to allow the rest of the series to be bisected without build failures. That functionality is gradually re-implemented in subsequent patches. Replace the sole validate-checksum-and-read-byte sequence with a call to nvram_read() which will gain the same semantics in subsequent patches. Remove unused exports. Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-22m68k/atari: Move Atari-specific code out of drivers/char/nvram.cFinn Thain
Move the m68k-specific code out of the driver to make the driver generic. I've used 'SPDX-License-Identifier: GPL-2.0+' for the new file because the old file is covered by MODULE_LICENSE("GPL"). Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>