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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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69fc7eed5f
Some machines don't have the pullup/down on their reset pin, so configuring the reset generating pin as input makes them reset immediately. Fix that by making reset pin direction configurable. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
22 lines
649 B
C
22 lines
649 B
C
#ifndef __ASM_ARCH_RESET_H
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#define __ASM_ARCH_RESET_H
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#define RESET_STATUS_HARDWARE (1 << 0) /* Hardware Reset */
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#define RESET_STATUS_WATCHDOG (1 << 1) /* Watchdog Reset */
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#define RESET_STATUS_LOWPOWER (1 << 2) /* Low Power/Sleep Exit */
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#define RESET_STATUS_GPIO (1 << 3) /* GPIO Reset */
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#define RESET_STATUS_ALL (0xf)
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extern unsigned int reset_status;
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extern void clear_reset_status(unsigned int mask);
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/**
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* init_gpio_reset() - register GPIO as reset generator
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*
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* @gpio - gpio nr
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* @output - set gpio as out/low instead of input during normal work
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*/
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extern int init_gpio_reset(int gpio, int output);
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#endif /* __ASM_ARCH_RESET_H */
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