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authorManuel Lauss <manuel.lauss@gmail.com>2014-07-23 16:36:57 +0200
committerRalf Baechle <ralf@linux-mips.org>2014-07-30 14:12:00 +0200
commit72e1e2a30f67fc19a958be6c1818e7e6cb1573fe (patch)
tree517844fb7a69d47035fb979ddc106866f82d86ad /arch/mips/alchemy/common
parentb6507596dfd6e7540c0939bc361cce8059432b71 (diff)
downloadlinux-72e1e2a30f67fc19a958be6c1818e7e6cb1573fe.tar.bz2
MIPS: Alchemy: remove old clock support
With the clock framework in place, remove unused functions and bits, and drop the CLK_IGNORE_UNUSED flag, which is now unneeded. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/7473/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/alchemy/common')
-rw-r--r--arch/mips/alchemy/common/Makefile2
-rw-r--r--arch/mips/alchemy/common/clock.c10
-rw-r--r--arch/mips/alchemy/common/clocks.c86
-rw-r--r--arch/mips/alchemy/common/setup.c15
4 files changed, 5 insertions, 108 deletions
diff --git a/arch/mips/alchemy/common/Makefile b/arch/mips/alchemy/common/Makefile
index c8dedcb23e8e..f64744f3b59f 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/clock.c b/arch/mips/alchemy/common/clock.c
index 3cd4118e49fe..d7557cde271a 100644
--- a/arch/mips/alchemy/common/clock.c
+++ b/arch/mips/alchemy/common/clock.c
@@ -151,7 +151,7 @@ static struct clk __init *alchemy_clk_setup_cpu(const char *parent_name,
id.name = ALCHEMY_CPU_CLK;
id.parent_names = &parent_name;
id.num_parents = 1;
- id.flags = CLK_IS_BASIC | CLK_IGNORE_UNUSED;
+ id.flags = CLK_IS_BASIC;
id.ops = &alchemy_clkops_cpu;
h->init = &id;
@@ -236,7 +236,7 @@ static struct clk __init *alchemy_clk_setup_aux(const char *parent_name,
id.name = name;
id.parent_names = &parent_name;
id.num_parents = 1;
- id.flags = CLK_GET_RATE_NOCACHE | CLK_IGNORE_UNUSED;
+ id.flags = CLK_GET_RATE_NOCACHE;
id.ops = &alchemy_clkops_aux;
a->reg = reg;
@@ -743,8 +743,7 @@ static int __init alchemy_clk_init_fgens(int ctype)
default:
return -ENODEV;
}
- id.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE |
- CLK_IGNORE_UNUSED;
+ id.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE;
a = kzalloc((sizeof(*a)) * 6, GFP_KERNEL);
if (!a)
@@ -942,8 +941,7 @@ static int __init alchemy_clk_setup_imux(int ctype)
id.ops = &alchemy_clkops_csrc;
id.parent_names = (const char **)alchemy_clk_csrc_parents;
id.num_parents = 7;
- id.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE |
- CLK_IGNORE_UNUSED;
+ id.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE;
dt = alchemy_csrc_dt1;
switch (ctype) {
diff --git a/arch/mips/alchemy/common/clocks.c b/arch/mips/alchemy/common/clocks.c
deleted file mode 100644
index a4c7cd74cfe4..000000000000
--- a/arch/mips/alchemy/common/clocks.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * BRIEF MODULE DESCRIPTION
- * Simple Au1xx0 clocks routines.
- *
- * Copyright 2001, 2008 MontaVista Software Inc.
- * Author: MontaVista Software, Inc. <source@mvista.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 = (alchemy_rdsys(AU1000_SYS_CPUPLL) & 0x3f) * 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 8267e3c97721..ea8f41869e56 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 <au1000.h>
@@ -41,18 +38,6 @@ extern void set_cpuspec(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] */