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https://github.com/AsahiLinux/u-boot
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b9d1f88b3a
The way that the timer support is currently done for exynos/nexell platforms relies on the legacy PWM infrastructure, and that needs to be updated. However, we really cannot safely undef CONFIG_DM_PWM to build the timer.c file without warnings. For now, rename the relevant legacy functions to be prefixed with s5p_ and add prototypes to the arch pwm.h files. Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Dzmitry Sankouski <dsankouski@gmail.com> Cc: Stefan Bosch <stefan_b@posteo.net> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2009 Samsung Electronics
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* Kyungmin Park <kyungmin.park@samsung.com>
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* Minkyu Kang <mk7.kang@samsung.com>
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*/
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#ifndef __ASM_ARM_ARCH_PWM_H_
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#define __ASM_ARM_ARCH_PWM_H_
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#define PRESCALER_0 (8 - 1) /* prescaler of timer 0, 1 */
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#define PRESCALER_1 (16 - 1) /* prescaler of timer 2, 3, 4 */
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/* Divider MUX */
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#define MUX_DIV_1 0 /* 1/1 period */
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#define MUX_DIV_2 1 /* 1/2 period */
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#define MUX_DIV_4 2 /* 1/4 period */
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#define MUX_DIV_8 3 /* 1/8 period */
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#define MUX_DIV_16 4 /* 1/16 period */
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#define MUX_DIV_SHIFT(x) (x * 4)
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#define TCON_OFFSET(x) ((x + 1) * (!!x) << 2)
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#define TCON_START(x) (1 << TCON_OFFSET(x))
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#define TCON_UPDATE(x) (1 << (TCON_OFFSET(x) + 1))
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#define TCON_INVERTER(x) (1 << (TCON_OFFSET(x) + 2))
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#define TCON_AUTO_RELOAD(x) (1 << (TCON_OFFSET(x) + 3))
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#define TCON4_AUTO_RELOAD (1 << 22)
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#ifndef __ASSEMBLY__
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struct s5p_timer {
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unsigned int tcfg0;
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unsigned int tcfg1;
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unsigned int tcon;
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unsigned int tcntb0;
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unsigned int tcmpb0;
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unsigned int tcnto0;
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unsigned int tcntb1;
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unsigned int tcmpb1;
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unsigned int tcnto1;
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unsigned int tcntb2;
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unsigned int tcmpb2;
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unsigned int tcnto2;
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unsigned int tcntb3;
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unsigned int tcmpb3;
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unsigned int tcnto3;
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unsigned int tcntb4;
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unsigned int tcnto4;
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unsigned int tintcstat;
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};
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int s5p_pwm_init (int pwm_id, int div, int invert);
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int s5p_pwm_config (int pwm_id, int duty_ns, int period_ns);
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int s5p_pwm_enable (int pwm_id);
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void s5p_pwm_disable (int pwm_id);
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#endif /* __ASSEMBLY__ */
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#endif
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