Currently at least OMAP, PXA2xx and SA11x0 platforms are known
to have accurate timekeeping with dynamic tick.
+config HZ
+ int
+ default 128 if ARCH_L7200
+ default 200 if ARCH_EBSA110 || ARCH_S3C2410
+ default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER_HZ != 0
+ default 100
+
config AEABI
bool "Use the ARM EABI to compile the kernel"
help
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-aaec2000/param.h
- *
- * Copyright (c) 2005 Nicolas Bellido Y Ortega
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __ASM_ARCH_PARAM_H
-#define __ASM_ARCH_PARAM_H
-
-#endif /* __ASM_ARCH_PARAM_H */
-
+++ /dev/null
-/*
- * include/asm-arm/arch-at91rm9200/param.h
- *
- * Copyright (C) 2003 SAN People
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __ASM_ARCH_PARAM_H
-#define __ASM_ARCH_PARAM_H
-
-/*
- * We use default params
- */
-
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-cl7500/param.h
- *
- * Copyright (C) 1999 Nexus Electronics Ltd
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-clps711x/param.h
- *
- * Copyright (C) 2000 Deep Blue Solutions Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-ebsa110/param.h
- */
-#define HZ 200
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-ebsa285/param.h
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-h720x/param.h
- *
- * Copyright (C) 2000 Jungjun Kim
- */
-
-#ifndef __ASM_ARCH_PARAM_H
-#define __ASM_ARCH_PARAM_H
-
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-imx/param.h
- *
- * Copyright (C) 1999 ARM Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-integrator/param.h
- *
- * Copyright (C) 1999 ARM Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-iop3xx/param.h
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-ixp2000/param.h
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-ixp4xx/param.h
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-l7200/param.h
- *
- * Copyright (C) 2000 Rob Scott (rscott@mtrob.fdns.net)
- * Steve Hill (sjhill@cotw.com)
- *
- * This file contains the hardware definitions for the
- * LinkUp Systems L7200 SOC development board.
- *
- * Changelog:
- * 04-21-2000 RS Created L7200 version
- * 04-25-2000 SJH Cleaned up file
- * 05-03-2000 SJH Change comments and rate
- */
-
-/*
- * See 'time.h' for how the RTC HZ rate is set
- */
-#define HZ 128
+++ /dev/null
-/* include/asm-arm/arch-lh7a40x/param.h
- *
- * Copyright (C) 2004 Coastal Environmental Systems
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-omap/param.h
- *
- */
-
-#ifdef CONFIG_OMAP_32K_TIMER_HZ
-#define HZ CONFIG_OMAP_32K_TIMER_HZ
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-pxa/param.h
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-realview/param.h
- *
- * Copyright (C) 2002 ARM Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-rpc/param.h
- */
+++ /dev/null
-/* linux/include/asm-arm/arch-s3c2410/param.h
- *
- * (c) 2003 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C2410 - Machine parameters
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Changelog:
- * 02-Sep-2003 BJD Created file
- * 12-Mar-2004 BJD Added include protection
-*/
-
-#ifndef __ASM_ARCH_PARAM_H
-#define __ASM_ARCH_PARAM_H
-
-/* we cannot get our timer down to 100Hz with the setup as is, but we can
- * manage 200 clock ticks per second... if this is a problem, we can always
- * add a software pre-scaler to the evil timer systems.
-*/
-
-#define HZ 200
-
-#endif /* __ASM_ARCH_PARAM_H */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-sa1100/param.h
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-shark/param.h
- *
- * by Alexander Schulz
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-versatile/param.h
- *
- * Copyright (C) 2002 ARM Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
#define __ASM_PARAM_H
#ifdef __KERNEL__
-# include <asm/arch/param.h> /* for kernel version of HZ */
-
-# ifndef HZ
-# define HZ 100 /* Internal kernel timer frequency */
-# endif
-
+# define HZ CONFIG_HZ /* Internal kernel timer frequency */
# define USER_HZ 100 /* User interfaces are in "ticks" */
# define CLOCKS_PER_SEC (USER_HZ) /* like times() */
#else