diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/global_data.h | 3 | ||||
| -rw-r--r-- | include/dm/uclass-id.h | 1 | ||||
| -rw-r--r-- | include/timer.h | 52 |
3 files changed, 56 insertions, 0 deletions
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index 2155265..d0383f3 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -69,6 +69,9 @@ typedef struct global_data { struct udevice *dm_root_f; /* Pre-relocation root instance */ struct list_head uclass_root; /* Head of core tree */ #endif +#ifdef CONFIG_TIMER + struct udevice *timer; /* Timer instance for Driver Model */ +#endif const void *fdt_blob; /* Our device tree, NULL if none */ void *new_fdt; /* Relocated FDT */ diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index da41499..330ecd2 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -57,6 +57,7 @@ enum uclass_id { UCLASS_SPI_GENERIC, /* Generic SPI flash target */ UCLASS_SYSCON, /* System configuration device */ UCLASS_THERMAL, /* Thermal sensor */ + UCLASS_TIMER, /* Timer device */ UCLASS_TPM, /* Trusted Platform Module TIS interface */ UCLASS_USB, /* USB bus */ UCLASS_USB_DEV_GENERIC, /* USB generic device */ diff --git a/include/timer.h b/include/timer.h new file mode 100644 index 0000000..cdf385d --- /dev/null +++ b/include/timer.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _TIMER_H_ +#define _TIMER_H_ + +/* + * Get the current timer count + * + * @dev: The Timer device + * @count: pointer that returns the current timer count + * @return: 0 if OK, -ve on error + */ +int timer_get_count(struct udevice *dev, unsigned long *count); +/* + * Get the timer input clock frequency + * + * @dev: The Timer device + * @return: the timer input clock frequency + */ +unsigned long timer_get_rate(struct udevice *dev); + +/* + * struct timer_ops - Driver model Timer operations + * + * The uclass interface is implemented by all Timer devices which use + * driver model. + */ +struct timer_ops { + /* + * Get the current timer count + * + * @dev: The Timer device + * @count: pointer that returns the current timer count + * @return: 0 if OK, -ve on error + */ + int (*get_count)(struct udevice *dev, unsigned long *count); +}; + +/* + * struct timer_dev_priv - information about a device used by the uclass + * + * @clock_rate: the timer input clock frequency + */ +struct timer_dev_priv { + unsigned long clock_rate; +}; + +#endif /* _TIMER_H_ */ |