From: Mateusz Krawczuk <mat.krawczuk@gmail.com>
To: kgene.kim@samsung.com
Cc: kyungmin.park@samsung.com, robh+dt@kernel.org,
pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
rob@landley.net, mturquette@linaro.org, tomasz.figa@gmail.com,
thomas.abraham@linaro.org, s.nawrocki@samsung.com,
m.szyprowski@samsung.com, padma.v@samsung.com,
chander.kashyap@linaro.org, t.dakhran@samsung.com,
devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, rjw@rjwysocki.net,
viresh.kumar@linaro.org, cpufreq@vger.kernel.org,
linux-pm@vger.kernel.org, linux@arm.linux.org.uk,
ben-linux@fluff.org, linux-samsung-soc@vger.kernel.org,
Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
Subject: [PATCH v5 Resend 3/3] ARM: s5pv210: Migrate clock handling to Common Clock Framework
Date: Sat, 28 Dec 2013 18:09:16 +0100 [thread overview]
Message-ID: <1388250556-4594-4-git-send-email-mat.krawczuk@gmail.com> (raw)
In-Reply-To: <1388250556-4594-1-git-send-email-mat.krawczuk@gmail.com>
From: Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
This patch migrates the s5pv210 platform to use new clock driver
using Common Clock Framework.
Signed-off-by: Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
arch/arm/mach-s5pv210/Kconfig | 9 +++++++++
arch/arm/mach-s5pv210/Makefile | 4 ++--
arch/arm/mach-s5pv210/common.c | 17 +++++++++++++++++
arch/arm/mach-s5pv210/common.h | 10 ++++++++++
arch/arm/mach-s5pv210/mach-goni.c | 2 +-
arch/arm/mach-s5pv210/mach-smdkv210.c | 2 +-
arch/arm/plat-samsung/Kconfig | 2 +-
7 files changed, 41 insertions(+), 5 deletions(-)
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index caaedaf..abad41f 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -11,6 +11,7 @@ if ARCH_S5PV210
config CPU_S5PV210
bool
+ select S5P_CLOCK if !COMMON_CLK
select S5P_EXT_INT
select S5P_PM if PM
select S5P_SLEEP if PM
@@ -69,6 +70,14 @@ config S5PV210_SETUP_USB_PHY
help
Common setup code for USB PHY controller
+config COMMON_CLK_S5PV210
+ bool "Common Clock Framework support"
+ default y
+ select COMMON_CLK
+ help
+ Enable this option to use new clock driver
+ based on Common Clock Framework.
+
menu "S5PC110 Machines"
config MACH_AQUILA
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 1c4e419..0c67fe2 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -12,8 +12,8 @@ obj- :=
# Core
-obj-y += common.o clock.o
-
+obj-y += common.o
+obj-$(CONFIG_S5P_CLOCK) += clock.o
obj-$(CONFIG_PM) += pm.o
obj-y += dma.o
diff --git a/arch/arm/mach-s5pv210/common.c b/arch/arm/mach-s5pv210/common.c
index 26027a2..48ce5f8 100644
--- a/arch/arm/mach-s5pv210/common.c
+++ b/arch/arm/mach-s5pv210/common.c
@@ -24,6 +24,7 @@
#include <linux/sched.h>
#include <linux/dma-mapping.h>
#include <linux/serial_core.h>
+#include <linux/of.h>
#include <asm/proc-fns.h>
#include <asm/mach/arch.h>
@@ -34,7 +35,13 @@
#include <mach/regs-clock.h>
#include <plat/cpu.h>
+
+#ifdef CONFIG_S5P_CLOCK
#include <plat/clock.h>
+#else
+#include <linux/clk-provider.h>
+#endif
+
#include <plat/devs.h>
#include <plat/sdhci.h>
#include <plat/adc-core.h>
@@ -50,6 +57,9 @@
#include "common.h"
+/* External clock frequency */
+static unsigned long xusbxti_f;
+
static const char name_s5pv210[] = "S5PV210/S5PC110";
static struct cpu_table cpu_ids[] __initdata = {
@@ -229,12 +239,16 @@ void __init s5pv210_map_io(void)
void __init s5pv210_init_clocks(int xtal)
{
+#ifdef CONFIG_S5P_CLOCK
printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
s3c24xx_register_baseclocks(xtal);
s5p_register_clocks(xtal);
s5pv210_register_clocks();
s5pv210_setup_clocks();
+#else
+ xusbxti_f = xtal;
+#endif
}
void __init s5pv210_init_irq(void)
@@ -248,6 +262,9 @@ void __init s5pv210_init_irq(void)
vic[3] = ~0;
s5p_init_irq(vic, ARRAY_SIZE(vic));
+
+ if (!of_have_populated_dt())
+ s5pv210_clk_init(NULL, 0, xusbxti_f, S3C_VA_SYS);
}
struct bus_type s5pv210_subsys = {
diff --git a/arch/arm/mach-s5pv210/common.h b/arch/arm/mach-s5pv210/common.h
index fe1beb5..cf3136a 100644
--- a/arch/arm/mach-s5pv210/common.h
+++ b/arch/arm/mach-s5pv210/common.h
@@ -14,6 +14,16 @@
#include <linux/reboot.h>
+#ifdef CONFIG_COMMON_CLK_S5PV210
+void s5pv210_clk_init(struct device_node *np,
+ unsigned long xxti_f, unsigned long xusbxti_f,
+ void __iomem *reg_base);
+#else
+static inline void s5pv210_clk_init(struct device_node *np,
+ unsigned long xxti_f, unsigned long xusbxti_f,
+ void __iomem *reg_base) {}
+#endif
+
void s5pv210_init_io(struct map_desc *mach_desc, int size);
void s5pv210_init_irq(void);
diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index 282d714..4c9681b 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -966,7 +966,7 @@ static void __init goni_sound_init(void)
static void __init goni_map_io(void)
{
s5pv210_init_io(NULL, 0);
- s3c24xx_init_clocks(clk_xusbxti.rate);
+ s3c24xx_init_clocks(24000000);
s3c24xx_init_uarts(goni_uartcfgs, ARRAY_SIZE(goni_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
}
diff --git a/arch/arm/mach-s5pv210/mach-smdkv210.c b/arch/arm/mach-s5pv210/mach-smdkv210.c
index f52cc15..25dd2fa 100644
--- a/arch/arm/mach-s5pv210/mach-smdkv210.c
+++ b/arch/arm/mach-s5pv210/mach-smdkv210.c
@@ -285,7 +285,7 @@ static struct platform_pwm_backlight_data smdkv210_bl_data = {
static void __init smdkv210_map_io(void)
{
s5pv210_init_io(NULL, 0);
- s3c24xx_init_clocks(clk_xusbxti.rate);
+ s3c24xx_init_clocks(24000000);
s3c24xx_init_uarts(smdkv210_uartcfgs, ARRAY_SIZE(smdkv210_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM2, SAMSUNG_PWM4);
}
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 58645a5..dc4efaf 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -90,7 +90,7 @@ config SAMSUNG_CLKSRC
used by newer systems such as the S3C64XX.
config S5P_CLOCK
- def_bool (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210)
+ def_bool (ARCH_S5P64X0 || ARCH_S5PC100)
help
Support common clock part for ARCH_S5P and ARCH_EXYNOS SoCs
--
1.8.3.3
prev parent reply other threads:[~2013-12-28 17:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-28 17:09 [PATCH v5 Resend 0/3] ARM: S5PV210: move to common clk framework Mateusz Krawczuk
2013-12-28 17:09 ` [PATCH v5 Resend 1/3] clk: samsung: Add clock driver for s5pc110/s5pv210 Mateusz Krawczuk
2013-12-29 21:46 ` Mike Turquette
2013-12-28 17:09 ` [PATCH v5 Resend 2/3] Cpufreq: s5pv210 cpufreq fixes for CCF Mateusz Krawczuk
2013-12-28 17:09 ` Mateusz Krawczuk [this message]
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