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The MaverickCrunch support for ep93xx never made it into glibc and was removed from gcc in its 4.8 release in 2012. It is now one of the last parts of arch/arm/ that fails to build with the clang integrated assembler, which is unlikely to ever want to support it. The two alternatives are to force the use of binutils/gas when building the crunch support, or to remove it entirely. According to Hartley Sweeten: "Martin Guy did a lot of work trying to get the maverick crunch working but I was never able to successfully use it for anything. It "kind" of works but depending on the EP93xx silicon revision there are still a number of hardware bugs that either give imprecise or garbage results. I have no problem with removing the kernel support for the maverick crunch." Unless someone else comes up with a good reason to keep it around, remove it now. This touches mostly the ep93xx platform, but removes a bit of code from ARM common ptrace and signal frame handling as well. If there are remaining users of MaverickCrunch, they can use LTS kernels for at least another five years before kernel support ends. Link: https://lore.kernel.org/linux-arm-kernel/20210802141245.1146772-1-arnd@kernel.org/ Link: https://lore.kernel.org/linux-arm-kernel/20210226164345.3889993-1-arnd@kernel.org/ Link: https://github.com/ClangBuiltLinux/linux/issues/1272 Link: https://gcc.gnu.org/legacy-ml/gcc/2008-03/msg01063.html Cc: "Martin Guy" <martinwguy@martinwguy@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* arch/arm/mach-ep93xx/include/mach/platform.h
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*/
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#ifndef __ASSEMBLY__
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#include <linux/platform_data/eth-ep93xx.h>
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#include <linux/reboot.h>
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struct device;
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struct i2c_board_info;
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struct spi_board_info;
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struct platform_device;
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struct ep93xxfb_mach_info;
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struct ep93xx_keypad_platform_data;
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struct ep93xx_spi_info;
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void ep93xx_map_io(void);
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void ep93xx_init_irq(void);
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void ep93xx_register_flash(unsigned int width,
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resource_size_t start, resource_size_t size);
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void ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr);
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void ep93xx_register_i2c(struct i2c_board_info *devices, int num);
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void ep93xx_register_spi(struct ep93xx_spi_info *info,
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struct spi_board_info *devices, int num);
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void ep93xx_register_fb(struct ep93xxfb_mach_info *data);
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void ep93xx_register_pwm(int pwm0, int pwm1);
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void ep93xx_register_keypad(struct ep93xx_keypad_platform_data *data);
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void ep93xx_register_i2s(void);
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void ep93xx_register_ac97(void);
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void ep93xx_register_ide(void);
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void ep93xx_register_adc(void);
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struct device *ep93xx_init_devices(void);
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extern void ep93xx_timer_init(void);
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void ep93xx_restart(enum reboot_mode, const char *);
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#endif
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