mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 16:07:30 +00:00
e86463f8e3
This converts the PLMT driver from the riscv-specific timer interface to be a DM-based UCLASS_TIMER driver. The clock-frequency/clocks properties are preferred over timebase-frequency for two reasons. First, properties which affect a device should be located near its binding in the device tree. Using timebase-frequency only really makes sense when the cpu itself is the timer device. This is the case when we read the time from a CSR, but not when there is a separate device. Second, it lets the device use the clock subsystem which adds flexibility. If the device is configured for a different clock speed, the timer can adjust itself. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Rick Chen <rick@andestech.com>
19 lines
473 B
C
19 lines
473 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
|
|
*/
|
|
|
|
#ifndef _ASM_SYSCON_H
|
|
#define _ASM_SYSCON_H
|
|
|
|
/*
|
|
* System controllers in a RISC-V system. These should only be used for
|
|
* identifying IPI controllers. Other devices should use DM to probe.
|
|
*/
|
|
enum {
|
|
RISCV_NONE,
|
|
RISCV_SYSCON_CLINT, /* Core Local Interruptor (CLINT) */
|
|
RISCV_SYSCON_PLIC, /* Platform Level Interrupt Controller (PLIC) */
|
|
};
|
|
|
|
#endif /* _ASM_SYSCON_H */
|