diff options
| author | Kuan-Wei Chiu <visitorckw@gmail.com> | 2026-01-07 20:18:31 +0000 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2026-02-02 14:24:40 -0600 |
| commit | 909f717eaf299a97fb87307e8606f3fdc6cb0c14 (patch) | |
| tree | 6221580c2b98631290f8df00f3c9f842a5cf31f9 /include | |
| parent | bf55b84736d6b220dae11e3b1e7a670918d9daee (diff) | |
timer: Add Goldfish timer driver
Add support for the Goldfish timer driver. This driver utilizes the
Goldfish RTC hardware to provide a nanosecond-resolution timer. This
virtual device is commonly found in QEMU virtual machines (such as the
m68k virt machine) and Android emulators.
The driver implements the standard U-Boot timer UCLASS interface,
exposing a 64-bit monotonically increasing counter with a 1GHz clock
rate derived from the RTC registers.
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Tested-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Yao Zi <me@ziyao.cc>
Reviewed-by: Simon Glass <simon.glass@canonical.com>
Reviewed-by: Angelo Dureghello <angelo@kernel-space.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/goldfish_timer.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/goldfish_timer.h b/include/goldfish_timer.h new file mode 100644 index 00000000000..acd3e460c5a --- /dev/null +++ b/include/goldfish_timer.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2025, Kuan-Wei Chiu <visitorckw@gmail.com> + */ + +#ifndef _GOLDFISH_TIMER_H_ +#define _GOLDFISH_TIMER_H_ + +struct goldfish_timer_plat { + phys_addr_t reg; +}; + +#endif /* _GOLDFISH_TIMER_H_ */ |