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author | Arnd Bergmann <arnd@arndb.de> | 2019-04-15 22:17:12 +0200 |
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committer | Olof Johansson <olof@lixom.net> | 2019-04-28 23:08:44 -0700 |
commit | 5b7cc90496aaff4f0eb1750b91dedec342d69760 (patch) | |
tree | f97d41461a3019e2827903dff9160a20c926c092 /arch/arm/mach-ep93xx/hardware.h | |
parent | 67e38f578aaebf34fc1278bbe45a78ee8c73dd33 (diff) | |
download | lwn-5b7cc90496aaff4f0eb1750b91dedec342d69760.tar.gz lwn-5b7cc90496aaff4f0eb1750b91dedec342d69760.zip |
ARM: ep93xx: move private headers out of mach/*
gpio-ep93xx.h, hardware.h, and platform.h are only used in
arch/arm/mach-ep93xx, so we can move them one there and no
longer expose them to device drivers.
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-ep93xx/hardware.h')
-rw-r--r-- | arch/arm/mach-ep93xx/hardware.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/mach-ep93xx/hardware.h b/arch/arm/mach-ep93xx/hardware.h new file mode 100644 index 000000000000..e7d850e04782 --- /dev/null +++ b/arch/arm/mach-ep93xx/hardware.h @@ -0,0 +1,25 @@ +/* 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 |