diff options
| author | Stefan Bosch <stefan_b@posteo.net> | 2020-07-10 19:07:31 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-07-29 08:43:40 -0400 |
| commit | 18284c1d56bfe2b51484561881377489ffa86c3b (patch) | |
| tree | 4f9cdf083c0177de121c0ad267df11331ba6435d /arch/arm/mach-nexell | |
| parent | 8d393b2c2278c846d26d59b37a2b46d3bcdb1663 (diff) | |
pwm: add driver for nexell
Changes in relation to FriendlyARM's U-Boot nanopi2-v2016.01:
- Since drivers/pwm/pwm-nexell.c is an adapted version of
s5p-common/pwm.c an appropriately changed version of s5p-common/pwm.c
is used instead. Therefore arch/arm/mach-s5pc1xx/include/mach/pwm.h
copied to arch/arm/mach-nexell/include/mach and s5p-common/Makefile
changed appropriately.
- '#ifdef CONFIG...' changed to 'if (IS_ENABLED(CONFIG...))' where
possible (and similar).
Signed-off-by: Stefan Bosch <stefan_b@posteo.net>
Diffstat (limited to 'arch/arm/mach-nexell')
| -rw-r--r-- | arch/arm/mach-nexell/include/mach/pwm.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-nexell/include/mach/pwm.h b/arch/arm/mach-nexell/include/mach/pwm.h new file mode 100644 index 0000000000..08a287d308 --- /dev/null +++ b/arch/arm/mach-nexell/include/mach/pwm.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2009 Samsung Electronics + * Kyungmin Park <kyungmin.park@samsung.com> + * Minkyu Kang <mk7.kang@samsung.com> + */ + +#ifndef __ASM_ARM_ARCH_PWM_H_ +#define __ASM_ARM_ARCH_PWM_H_ + +#define PRESCALER_0 (8 - 1) /* prescaler of timer 0, 1 */ +#define PRESCALER_1 (16 - 1) /* prescaler of timer 2, 3, 4 */ + +/* Divider MUX */ +#define MUX_DIV_1 0 /* 1/1 period */ +#define MUX_DIV_2 1 /* 1/2 period */ +#define MUX_DIV_4 2 /* 1/4 period */ +#define MUX_DIV_8 3 /* 1/8 period */ +#define MUX_DIV_16 4 /* 1/16 period */ + +#define MUX_DIV_SHIFT(x) ((x) * 4) + +#define TCON_OFFSET(x) (((x) + 1) * (!!(x)) << 2) + +#define TCON_START(x) (1 << TCON_OFFSET(x)) +#define TCON_UPDATE(x) (1 << (TCON_OFFSET(x) + 1)) +#define TCON_INVERTER(x) (1 << (TCON_OFFSET(x) + 2)) +#define TCON_AUTO_RELOAD(x) (1 << (TCON_OFFSET(x) + 3)) +#define TCON4_AUTO_RELOAD (1 << 22) + +#ifndef __ASSEMBLY__ +struct s5p_timer { + unsigned int tcfg0; + unsigned int tcfg1; + unsigned int tcon; + unsigned int tcntb0; + unsigned int tcmpb0; + unsigned int tcnto0; + unsigned int tcntb1; + unsigned int tcmpb1; + unsigned int tcnto1; + unsigned int tcntb2; + unsigned int tcmpb2; + unsigned int tcnto2; + unsigned int tcntb3; + unsigned int res1; + unsigned int tcnto3; + unsigned int tcntb4; + unsigned int tcnto4; + unsigned int tintcstat; +}; +#endif /* __ASSEMBLY__ */ + +#endif |