diff options
Diffstat (limited to 'arch/arm/include/asm/arch-stv0991/stv0991_gpt.h')
| -rw-r--r-- | arch/arm/include/asm/arch-stv0991/stv0991_gpt.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_gpt.h b/arch/arm/include/asm/arch-stv0991/stv0991_gpt.h new file mode 100644 index 0000000..cd27472 --- /dev/null +++ b/arch/arm/include/asm/arch-stv0991/stv0991_gpt.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2014, STMicroelectronics - All Rights Reserved + * Author(s): Vikas Manocha, <vikas.manocha@st.com> for STMicroelectronics. + */ + +#ifndef _STV0991_GPT_H +#define _STV0991_GPT_H + +#include <asm/arch-stv0991/hardware.h> + +struct gpt_regs { + u32 cr1; + u32 cr2; + u32 reserved_1; + u32 dier; /* dma_int_en */ + u32 sr; /* status reg */ + u32 egr; /* event gen */ + u32 reserved_2[3]; /* offset 0x18--0x20*/ + u32 cnt; + u32 psc; + u32 arr; +}; + +struct gpt_regs *const gpt1_regs_ptr = + (struct gpt_regs *) GPTIMER1_BASE_ADDR; + +/* Timer control1 register */ +#define GPT_CR1_CEN 0x0001 +#define GPT_MODE_AUTO_RELOAD (1 << 7) + +/* Timer prescalar reg */ +#define GPT_PRESCALER_128 0x128 + +/* Auto reload register for free running config */ +#define GPT_FREE_RUNNING 0xFFFF + +/* Timer, HZ specific defines */ +#define CONFIG_STV0991_HZ 1000 +#define CONFIG_STV0991_HZ_CLOCK (27*1000*1000)/GPT_PRESCALER_128 + +#endif |