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Date: Thu, 3 Jul 2014 15:22:42 +0200
From: Manuel Lauss <manuel.lauss@...il.com>
To: Linux-MIPS <linux-mips@...ux-mips.org>,
Mike Turquette <mturquette@...aro.org>
Cc: linux-kernel@...r.kernel.org, Manuel Lauss <manuel.lauss@...il.com>
Subject: [RFC PATCH v2 11/11] MIPS: Alchemy: remove old clock support
With the clock framework in place, remove unused functions and bits.
Signed-off-by: Manuel Lauss <manuel.lauss@...il.com>
---
arch/mips/alchemy/common/Makefile | 2 +-
arch/mips/alchemy/common/clocks.c | 87 ------------------------------
arch/mips/alchemy/common/setup.c | 15 ------
arch/mips/include/asm/mach-au1x00/au1000.h | 68 -----------------------
4 files changed, 1 insertion(+), 171 deletions(-)
delete mode 100644 arch/mips/alchemy/common/clocks.c
diff --git a/arch/mips/alchemy/common/Makefile b/arch/mips/alchemy/common/Makefile
index c8dedcb..f64744f 100644
--- a/arch/mips/alchemy/common/Makefile
+++ b/arch/mips/alchemy/common/Makefile
@@ -5,7 +5,7 @@
# Makefile for the Alchemy Au1xx0 CPUs, generic files.
#
-obj-y += prom.o time.o clock.o clocks.o platform.o power.o \
+obj-y += prom.o time.o clock.o platform.o power.o \
setup.o sleeper.o dma.o dbdma.o vss.o irq.o usb.o
# optional gpiolib support
diff --git a/arch/mips/alchemy/common/clocks.c b/arch/mips/alchemy/common/clocks.c
deleted file mode 100644
index e77fa9b..0000000
--- a/arch/mips/alchemy/common/clocks.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * BRIEF MODULE DESCRIPTION
- * Simple Au1xx0 clocks routines.
- *
- * Copyright 2001, 2008 MontaVista Software Inc.
- * Author: MontaVista Software, Inc. <source@...sta.com>
- *
- * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * 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.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <asm/time.h>
-#include <asm/mach-au1x00/au1000.h>
-
-/*
- * I haven't found anyone that doesn't use a 12 MHz source clock,
- * but just in case.....
- */
-#define AU1000_SRC_CLK 12000000
-
-static unsigned int au1x00_clock; /* Hz */
-
-/*
- * Set the au1000_clock
- */
-void set_au1x00_speed(unsigned int new_freq)
-{
- au1x00_clock = new_freq;
-}
-
-unsigned int get_au1x00_speed(void)
-{
- return au1x00_clock;
-}
-EXPORT_SYMBOL(get_au1x00_speed);
-
-/*
- * We read the real processor speed from the PLL. This is important
- * because it is more accurate than computing it from the 32 KHz
- * counter, if it exists. If we don't have an accurate processor
- * speed, all of the peripherals that derive their clocks based on
- * this advertised speed will introduce error and sometimes not work
- * properly. This function is further convoluted to still allow configurations
- * to do that in case they have really, really old silicon with a
- * write-only PLL register. -- Dan
- */
-unsigned long au1xxx_calc_clock(void)
-{
- unsigned long cpu_speed;
-
- /*
- * On early Au1000, sys_cpupll was write-only. Since these
- * silicon versions of Au1000 are not sold by AMD, we don't bend
- * over backwards trying to determine the frequency.
- */
- if (au1xxx_cpu_has_pll_wo())
- cpu_speed = 396000000;
- else
- cpu_speed = (AU1X_RDSYS(AU1000_SYS_CPUPLL) & 0x0000003f)
- * AU1000_SRC_CLK;
-
- /* On Alchemy CPU:counter ratio is 1:1 */
- mips_hpt_frequency = cpu_speed;
-
- set_au1x00_speed(cpu_speed);
-
- return cpu_speed;
-}
diff --git a/arch/mips/alchemy/common/setup.c b/arch/mips/alchemy/common/setup.c
index 6f8b91d..f635934 100644
--- a/arch/mips/alchemy/common/setup.c
+++ b/arch/mips/alchemy/common/setup.c
@@ -27,12 +27,9 @@
#include <linux/init.h>
#include <linux/ioport.h>
-#include <linux/jiffies.h>
-#include <linux/module.h>
#include <asm/dma-coherence.h>
#include <asm/mipsregs.h>
-#include <asm/time.h>
#include <asm/mach-au1x00/au1000.h>
@@ -40,18 +37,6 @@ extern void __init board_setup(void);
void __init plat_mem_setup(void)
{
- unsigned long est_freq;
-
- /* determine core clock */
- est_freq = au1xxx_calc_clock();
- est_freq += 5000; /* round */
- est_freq -= est_freq % 10000;
- printk(KERN_INFO "(PRId %08x) @ %lu.%02lu MHz\n", read_c0_prid(),
- est_freq / 1000000, ((est_freq % 1000000) * 100) / 1000000);
-
- /* this is faster than wasting cycles trying to approximate it */
- preset_lpj = (est_freq >> 1) / HZ;
-
if (au1xxx_cpu_needs_config_od())
/* Various early Au1xx0 errata corrected by this */
set_c0_config(1 << 19); /* Set Config[OD] */
diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h
index 46ce1fe..a582a5e 100644
--- a/arch/mips/include/asm/mach-au1x00/au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/au1000.h
@@ -480,69 +480,6 @@
#define AU1000_SYS_AUXPLL 0x0064
#define AU1300_SYS_AUXPLL2 0x0068
-/* SYS_FREQCTRLx bits */
-# define SYS_FC_FRDIV2_BIT 22
-# define SYS_FC_FRDIV2_MASK (0xff << SYS_FC_FRDIV2_BIT)
-# define SYS_FC_FE2 (1 << 21)
-# define SYS_FC_FS2 (1 << 20)
-# define SYS_FC_FRDIV1_BIT 12
-# define SYS_FC_FRDIV1_MASK (0xff << SYS_FC_FRDIV1_BIT)
-# define SYS_FC_FE1 (1 << 11)
-# define SYS_FC_FS1 (1 << 10)
-# define SYS_FC_FRDIV0_BIT 2
-# define SYS_FC_FRDIV0_MASK (0xff << SYS_FC_FRDIV0_BIT)
-# define SYS_FC_FE0 (1 << 1)
-# define SYS_FC_FS0 (1 << 0)
-# define SYS_FC_FRDIV5_BIT 22
-# define SYS_FC_FRDIV5_MASK (0xff << SYS_FC_FRDIV5_BIT)
-# define SYS_FC_FE5 (1 << 21)
-# define SYS_FC_FS5 (1 << 20)
-# define SYS_FC_FRDIV4_BIT 12
-# define SYS_FC_FRDIV4_MASK (0xff << SYS_FC_FRDIV4_BIT)
-# define SYS_FC_FE4 (1 << 11)
-# define SYS_FC_FS4 (1 << 10)
-# define SYS_FC_FRDIV3_BIT 2
-# define SYS_FC_FRDIV3_MASK (0xff << SYS_FC_FRDIV3_BIT)
-# define SYS_FC_FE3 (1 << 1)
-# define SYS_FC_FS3 (1 << 0)
-
-/* SYS_CLKSRC bits */
-# define SYS_CS_ME1_BIT 27
-# define SYS_CS_ME1_MASK (0x7 << SYS_CS_ME1_BIT)
-# define SYS_CS_DE1 (1 << 26)
-# define SYS_CS_CE1 (1 << 25)
-# define SYS_CS_ME0_BIT 22
-# define SYS_CS_ME0_MASK (0x7 << SYS_CS_ME0_BIT)
-# define SYS_CS_DE0 (1 << 21)
-# define SYS_CS_CE0 (1 << 20)
-# define SYS_CS_MI2_BIT 17
-# define SYS_CS_MI2_MASK (0x7 << SYS_CS_MI2_BIT)
-# define SYS_CS_DI2 (1 << 16)
-# define SYS_CS_CI2 (1 << 15)
-# define SYS_CS_ML_BIT 7
-# define SYS_CS_ML_MASK (0x7 << SYS_CS_ML_BIT)
-# define SYS_CS_DL (1 << 6)
-# define SYS_CS_CL (1 << 5)
-# define SYS_CS_MUH_BIT 12
-# define SYS_CS_MUH_MASK (0x7 << SYS_CS_MUH_BIT)
-# define SYS_CS_DUH (1 << 11)
-# define SYS_CS_CUH (1 << 10)
-# define SYS_CS_MUD_BIT 7
-# define SYS_CS_MUD_MASK (0x7 << SYS_CS_MUD_BIT)
-# define SYS_CS_DUD (1 << 6)
-# define SYS_CS_CUD (1 << 5)
-# define SYS_CS_MIR_BIT 2
-# define SYS_CS_MIR_MASK (0x7 << SYS_CS_MIR_BIT)
-# define SYS_CS_DIR (1 << 1)
-# define SYS_CS_CIR (1 << 0)
-# define SYS_CS_MUX_AUX 0x1
-# define SYS_CS_MUX_FQ0 0x2
-# define SYS_CS_MUX_FQ1 0x3
-# define SYS_CS_MUX_FQ2 0x4
-# define SYS_CS_MUX_FQ3 0x5
-# define SYS_CS_MUX_FQ4 0x6
-# define SYS_CS_MUX_FQ5 0x7
-
/* Au15x0 PCI *********************************************************/
@@ -826,11 +763,6 @@ static inline int alchemy_get_macs(int type)
return 0;
}
-/* arch/mips/au1000/common/clocks.c */
-extern void set_au1x00_speed(unsigned int new_freq);
-extern unsigned int get_au1x00_speed(void);
-extern unsigned long au1xxx_calc_clock(void);
-
/* PM: arch/mips/alchemy/common/sleeper.S, power.c, irq.c */
void alchemy_sleep_au1000(void);
void alchemy_sleep_au1550(void);
--
2.0.0
--
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