5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
26 lines
750 B
C
26 lines
750 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* arch/arm/mach-ep93xx/include/mach/hardware.h
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_HARDWARE_H
|
|
#define __ASM_ARCH_HARDWARE_H
|
|
|
|
#include "platform.h"
|
|
|
|
/*
|
|
* The EP93xx has two external crystal oscillators. To generate the
|
|
* required high-frequency clocks, the processor uses two phase-locked-
|
|
* loops (PLLs) to multiply the incoming external clock signal to much
|
|
* higher frequencies that are then divided down by programmable dividers
|
|
* to produce the needed clocks. The PLLs operate independently of one
|
|
* another.
|
|
*/
|
|
#define EP93XX_EXT_CLK_RATE 14745600
|
|
#define EP93XX_EXT_RTC_RATE 32768
|
|
|
|
#define EP93XX_KEYTCHCLK_DIV4 (EP93XX_EXT_CLK_RATE / 4)
|
|
#define EP93XX_KEYTCHCLK_DIV16 (EP93XX_EXT_CLK_RATE / 16)
|
|
|
|
#endif
|