mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
25 lines
750 B
25 lines
750 B
/* 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
|
|
|