Commit f023f8dd authored by Viresh Kumar's avatar Viresh Kumar Committed by Kukjin Kim

cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq

This patch moves cpufreq driver of Samsung's ARM based
s3c24xx platform to drivers/cpufreq.
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent f722406f
......@@ -2053,53 +2053,6 @@ menu "CPU Power Management"
if ARCH_HAS_CPUFREQ
source "drivers/cpufreq/Kconfig"
config CPU_FREQ_S3C
bool
help
Internal configuration node for common cpufreq on Samsung SoC
config CPU_FREQ_S3C24XX
bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
depends on ARCH_S3C24XX && CPU_FREQ
select CPU_FREQ_S3C
help
This enables the CPUfreq driver for the Samsung S3C24XX family
of CPUs.
For details, take a look at <file:Documentation/cpu-freq>.
If in doubt, say N.
config CPU_FREQ_S3C24XX_PLL
bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
depends on CPU_FREQ_S3C24XX
help
Compile in support for changing the PLL frequency from the
S3C24XX series CPUfreq driver. The PLL takes time to settle
after a frequency change, so by default it is not enabled.
This also means that the PLL tables for the selected CPU(s) will
be built which may increase the size of the kernel image.
config CPU_FREQ_S3C24XX_DEBUG
bool "Debug CPUfreq Samsung driver core"
depends on CPU_FREQ_S3C24XX
help
Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
config CPU_FREQ_S3C24XX_IODEBUG
bool "Debug CPUfreq Samsung driver IO timing"
depends on CPU_FREQ_S3C24XX
help
Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
config CPU_FREQ_S3C24XX_DEBUGFS
bool "Export debugfs for CPUFreq"
depends on CPU_FREQ_S3C24XX && DEBUG_FS
help
Export status information via debugfs.
endif
source "drivers/cpuidle/Kconfig"
......
......@@ -28,7 +28,7 @@ config CPU_S3C2410
select CPU_ARM920T
select CPU_LLSERIAL_S3C2410
select S3C2410_CLOCK
select S3C2410_CPUFREQ if CPU_FREQ_S3C24XX
select ARM_S3C2410_CPUFREQ if ARM_S3C24XX_CPUFREQ
select S3C2410_PM if PM
select SAMSUNG_HRT
help
......@@ -204,27 +204,38 @@ config S3C24XX_GPIO_EXTRA128
Add an extra 128 gpio numbers to the available GPIO pool. This is
available for boards that need extra gpios for external devices.
config S3C24XX_PLL
bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
depends on ARM_S3C24XX
help
Compile in support for changing the PLL frequency from the
S3C24XX series CPUfreq driver. The PLL takes time to settle
after a frequency change, so by default it is not enabled.
This also means that the PLL tables for the selected CPU(s) will
be built which may increase the size of the kernel image.
# cpu frequency items common between s3c2410 and s3c2440/s3c2442
config S3C2410_IOTIMING
bool
depends on CPU_FREQ_S3C24XX
depends on ARM_S3C24XX_CPUFREQ
help
Internal node to select io timing code that is common to the s3c2410
and s3c2440/s3c2442 cpu frequency support.
config S3C2410_CPUFREQ_UTILS
bool
depends on CPU_FREQ_S3C24XX
help
Internal node to select timing code that is common to the s3c2410
and s3c2440/s3c244 cpu frequency support.
bool
depends on ARM_S3C24XX_CPUFREQ
help
Internal node to select timing code that is common to the s3c2410
and s3c2440/s3c244 cpu frequency support.
# cpu frequency support common to s3c2412, s3c2413 and s3c2442
config S3C2412_IOTIMING
bool
depends on CPU_FREQ_S3C24XX && (CPU_S3C2412 || CPU_S3C2443)
depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2412 || CPU_S3C2443)
help
Intel node to select io timing code that is common to the s3c2412
and the s3c2443.
......@@ -233,16 +244,9 @@ config S3C2412_IOTIMING
if CPU_S3C2410
config S3C2410_CPUFREQ
bool
depends on CPU_FREQ_S3C24XX
select S3C2410_CPUFREQ_UTILS
help
CPU Frequency scaling support for S3C2410
config S3C2410_PLL
bool
depends on S3C2410_CPUFREQ && CPU_FREQ_S3C24XX_PLL
depends on ARM_S3C2410_CPUFREQ && S3C24XX_PLL
default y
help
Select the PLL table for the S3C2410
......@@ -278,7 +282,7 @@ config ARCH_BAST
bool "Simtec Electronics BAST (EB2410ITX)"
select ISA
select MACH_BAST_IDE
select S3C2410_IOTIMING if S3C2410_CPUFREQ
select S3C2410_IOTIMING if ARM_S3C2410_CPUFREQ
select S3C24XX_DCLK
select S3C24XX_SIMTEC_NOR
select S3C24XX_SIMTEC_PM if PM
......@@ -385,14 +389,6 @@ config CPU_S3C2412_ONLY
!CPU_S3C2442 && !CPU_S3C2443
default y
config S3C2412_CPUFREQ
bool
depends on CPU_FREQ_S3C24XX
default y
select S3C2412_IOTIMING
help
CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
config S3C2412_DMA
bool
help
......@@ -494,14 +490,6 @@ endif # CPU_S3C2416
if CPU_S3C2440
config S3C2440_CPUFREQ
bool "S3C2440/S3C2442 CPU Frequency scaling support"
depends on CPU_FREQ_S3C24XX && (CPU_S3C2440 || CPU_S3C2442)
default y
select S3C2410_CPUFREQ_UTILS
help
CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
config S3C2440_DMA
bool
help
......@@ -521,15 +509,15 @@ config S3C2440_XTAL_16934400
config S3C2440_PLL_12000000
bool
depends on S3C2440_CPUFREQ && S3C2440_XTAL_12000000
default y if CPU_FREQ_S3C24XX_PLL
depends on ARM_S3C2440_CPUFREQ && S3C2440_XTAL_12000000
default y if S3C24XX_PLL
help
PLL tables for S3C2440 or S3C2442 CPUs with 12MHz crystals.
config S3C2440_PLL_16934400
bool
depends on S3C2440_CPUFREQ && S3C2440_XTAL_16934400
default y if CPU_FREQ_S3C24XX_PLL
depends on ARM_S3C2440_CPUFREQ && S3C2440_XTAL_16934400
default y if S3C24XX_PLL
help
PLL tables for S3C2440 or S3C2442 CPUs with 16.934MHz crystals.
......@@ -583,7 +571,7 @@ config MACH_NEXCODER_2440
config MACH_OSIRIS
bool "Simtec IM2440D20 (OSIRIS) module"
select S3C2410_IOTIMING if S3C2440_CPUFREQ
select S3C2410_IOTIMING if ARM_S3C2440_CPUFREQ
select S3C2440_XTAL_12000000
select S3C24XX_DCLK
select S3C24XX_GPIO_EXTRA128
......@@ -655,7 +643,7 @@ config MACH_RX1950
bool "HP iPAQ rx1950"
select I2C
select PM_H1940 if PM
select S3C2410_IOTIMING if S3C2440_CPUFREQ
select S3C2410_IOTIMING if ARM_S3C2440_CPUFREQ
select S3C2440_XTAL_16934400
select S3C24XX_DCLK
select S3C24XX_PWM
......
......@@ -17,13 +17,11 @@ obj- :=
obj-y += common.o
obj-$(CONFIG_CPU_S3C2410) += s3c2410.o
obj-$(CONFIG_S3C2410_CPUFREQ) += cpufreq-s3c2410.o
obj-$(CONFIG_S3C2410_DMA) += dma-s3c2410.o
obj-$(CONFIG_S3C2410_PLL) += pll-s3c2410.o
obj-$(CONFIG_S3C2410_PM) += pm-s3c2410.o sleep-s3c2410.o
obj-$(CONFIG_CPU_S3C2412) += s3c2412.o clock-s3c2412.o
obj-$(CONFIG_S3C2412_CPUFREQ) += cpufreq-s3c2412.o
obj-$(CONFIG_S3C2412_DMA) += dma-s3c2412.o
obj-$(CONFIG_S3C2412_PM) += pm-s3c2412.o
obj-$(CONFIG_S3C2412_PM_SLEEP) += sleep-s3c2412.o
......@@ -34,7 +32,6 @@ obj-$(CONFIG_S3C2416_PM) += pm-s3c2416.o
obj-$(CONFIG_CPU_S3C2440) += s3c2440.o clock-s3c2440.o
obj-$(CONFIG_CPU_S3C2442) += s3c2442.o
obj-$(CONFIG_CPU_S3C244X) += s3c244x.o clock-s3c244x.o
obj-$(CONFIG_S3C2440_CPUFREQ) += cpufreq-s3c2440.o
obj-$(CONFIG_S3C2440_DMA) += dma-s3c2440.o
obj-$(CONFIG_S3C2440_PLL_12000000) += pll-s3c2440-12000000.o
obj-$(CONFIG_S3C2440_PLL_16934400) += pll-s3c2440-16934400.o
......@@ -59,9 +56,6 @@ obj-$(CONFIG_S3C2412_IOTIMING) += iotiming-s3c2412.o
obj-$(CONFIG_S3C2443_COMMON) += common-s3c2443.o
obj-$(CONFIG_S3C2443_DMA) += dma-s3c2443.o
obj-$(CONFIG_CPU_FREQ_S3C24XX) += cpufreq.o
obj-$(CONFIG_CPU_FREQ_S3C24XX_DEBUGFS) += cpufreq-debugfs.o
#
# machine support
# following is ordered alphabetically by option text.
......
......@@ -31,7 +31,7 @@
#include <plat/cpu-freq-core.h>
#include <plat/clock.h>
#include "s3c2412.h"
#include <mach/s3c2412.h>
#define print_ns(x) ((x) / 10), ((x) % 10)
......
......@@ -202,7 +202,7 @@ extern int s3c_plltab_register(struct cpufreq_frequency_table *plls,
extern struct s3c_cpufreq_config *s3c_cpufreq_getconfig(void);
extern struct s3c_iotimings *s3c_cpufreq_getiotimings(void);
#ifdef CONFIG_CPU_FREQ_S3C24XX_DEBUGFS
#ifdef CONFIG_ARM_S3C24XX_CPUFREQ_DEBUGFS
#define s3c_cpufreq_debugfs_call(x) x
#else
#define s3c_cpufreq_debugfs_call(x) NULL
......@@ -259,17 +259,17 @@ extern void s3c2412_iotiming_set(struct s3c_cpufreq_config *cfg,
#define s3c2412_iotiming_set NULL
#endif /* CONFIG_S3C2412_IOTIMING */
#ifdef CONFIG_CPU_FREQ_S3C24XX_DEBUG
#ifdef CONFIG_ARM_S3C24XX_CPUFREQ_DEBUG
#define s3c_freq_dbg(x...) printk(KERN_INFO x)
#else
#define s3c_freq_dbg(x...) do { if (0) printk(x); } while (0)
#endif /* CONFIG_CPU_FREQ_S3C24XX_DEBUG */
#endif /* CONFIG_ARM_S3C24XX_CPUFREQ_DEBUG */
#ifdef CONFIG_CPU_FREQ_S3C24XX_IODEBUG
#ifdef CONFIG_ARM_S3C24XX_CPUFREQ_IODEBUG
#define s3c_freq_iodbg(x...) printk(KERN_INFO x)
#else
#define s3c_freq_iodbg(x...) do { if (0) printk(x); } while (0)
#endif /* CONFIG_CPU_FREQ_S3C24XX_IODEBUG */
#endif /* CONFIG_ARM_S3C24XX_CPUFREQ_IODEBUG */
static inline int s3c_cpufreq_addfreq(struct cpufreq_frequency_table *table,
int index, size_t table_size,
......
......@@ -126,7 +126,7 @@ struct s3c_cpufreq_board {
};
/* Things depending on frequency scaling. */
#ifdef CONFIG_CPU_FREQ_S3C
#ifdef CONFIG_ARM_S3C_CPUFREQ
#define __init_or_cpufreq
#else
#define __init_or_cpufreq __init
......@@ -134,7 +134,7 @@ struct s3c_cpufreq_board {
/* Board functions */
#ifdef CONFIG_CPU_FREQ_S3C
#ifdef CONFIG_ARM_S3C_CPUFREQ
extern int s3c_cpufreq_setboard(struct s3c_cpufreq_board *board);
#else
......@@ -142,4 +142,4 @@ static inline int s3c_cpufreq_setboard(struct s3c_cpufreq_board *board)
{
return 0;
}
#endif /* CONFIG_CPU_FREQ_S3C */
#endif /* CONFIG_ARM_S3C_CPUFREQ */
......@@ -95,6 +95,56 @@ config ARM_OMAP2PLUS_CPUFREQ
default ARCH_OMAP2PLUS
select CPU_FREQ_TABLE
config ARM_S3C_CPUFREQ
bool
help
Internal configuration node for common cpufreq on Samsung SoC
config ARM_S3C24XX_CPUFREQ
bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
depends on ARCH_S3C24XX
select ARM_S3C_CPUFREQ
help
This enables the CPUfreq driver for the Samsung S3C24XX family
of CPUs.
For details, take a look at <file:Documentation/cpu-freq>.
If in doubt, say N.
config ARM_S3C24XX_CPUFREQ_DEBUG
bool "Debug CPUfreq Samsung driver core"
depends on ARM_S3C24XX_CPUFREQ
help
Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
config ARM_S3C24XX_CPUFREQ_IODEBUG
bool "Debug CPUfreq Samsung driver IO timing"
depends on ARM_S3C24XX_CPUFREQ
help
Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
config ARM_S3C24XX_CPUFREQ_DEBUGFS
bool "Export debugfs for CPUFreq"
depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
help
Export status information via debugfs.
config ARM_S3C2410_CPUFREQ
bool
depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
select S3C2410_CPUFREQ_UTILS
help
CPU Frequency scaling support for S3C2410
config ARM_S3C2412_CPUFREQ
bool
depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
default y
select S3C2412_IOTIMING
help
CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
config ARM_S3C2416_CPUFREQ
bool "S3C2416 CPU Frequency scaling support"
depends on CPU_S3C2416
......@@ -117,6 +167,14 @@ config ARM_S3C2416_CPUFREQ_VCORESCALE
If in doubt, say N.
config ARM_S3C2440_CPUFREQ
bool "S3C2440/S3C2442 CPU Frequency scaling support"
depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
select S3C2410_CPUFREQ_UTILS
default y
help
CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
config ARM_S3C64XX_CPUFREQ
bool "Samsung S3C64XX"
depends on CPU_S3C6410
......
......@@ -65,7 +65,12 @@ obj-$(CONFIG_ARM_OMAP2PLUS_CPUFREQ) += omap-cpufreq.o
obj-$(CONFIG_PXA25x) += pxa2xx-cpufreq.o
obj-$(CONFIG_PXA27x) += pxa2xx-cpufreq.o
obj-$(CONFIG_PXA3xx) += pxa3xx-cpufreq.o
obj-$(CONFIG_ARM_S3C24XX_CPUFREQ) += s3c24xx-cpufreq.o
obj-$(CONFIG_ARM_S3C24XX_CPUFREQ_DEBUGFS) += s3c24xx-cpufreq-debugfs.o
obj-$(CONFIG_ARM_S3C2410_CPUFREQ) += s3c2410-cpufreq.o
obj-$(CONFIG_ARM_S3C2412_CPUFREQ) += s3c2412-cpufreq.o
obj-$(CONFIG_ARM_S3C2416_CPUFREQ) += s3c2416-cpufreq.o
obj-$(CONFIG_ARM_S3C2440_CPUFREQ) += s3c2440-cpufreq.o
obj-$(CONFIG_ARM_S3C64XX_CPUFREQ) += s3c64xx-cpufreq.o
obj-$(CONFIG_ARM_S5PV210_CPUFREQ) += s5pv210-cpufreq.o
obj-$(CONFIG_ARM_SA1100_CPUFREQ) += sa1100-cpufreq.o
......
......@@ -25,13 +25,12 @@
#include <asm/mach/map.h>
#include <mach/regs-clock.h>
#include <mach/s3c2412.h>
#include <plat/cpu.h>
#include <plat/clock.h>
#include <plat/cpu-freq-core.h>
#include "s3c2412.h"
/* our clock resources. */
static struct clk *xtal;
static struct clk *fclk;
......
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