From: thomas.abraham@linaro.org (Thomas Abraham)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 08/12] ARM: Exynos4: allow legacy board support to specify xxti and xusbxti clock speed
Date: Sat, 29 Dec 2012 16:33:37 -0800 [thread overview]
Message-ID: <1356827621-27617-9-git-send-email-thomas.abraham@linaro.org> (raw)
In-Reply-To: <1356827621-27617-1-git-send-email-thomas.abraham@linaro.org>
The clock speed of xxti and xusbxti clocks depends on the oscillator used on the
board to generate these clocks. For non-dt platforms, allow the board support
for those platforms to set the clock frequency of xxti and xusbxti clocks.
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
---
arch/arm/mach-exynos/common.c | 3 +++
arch/arm/mach-exynos/common.h | 1 +
arch/arm/mach-exynos/mach-nuri.c | 2 ++
arch/arm/mach-exynos/mach-origen.c | 2 ++
arch/arm/mach-exynos/mach-smdkv310.c | 2 ++
arch/arm/mach-exynos/mach-universal_c210.c | 2 ++
6 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 2b1b225..6349432 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -71,6 +71,8 @@ static void exynos5_init_clocks(int xtal);
static void exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no);
static int exynos_init(void);
+unsigned long xxti_f = 0, xusbxti_f = 0;
+
static struct cpu_table cpu_ids[] __initdata = {
{
.idcode = EXYNOS4210_CPU_ID,
@@ -455,6 +457,7 @@ void __init exynos_timer_init(void)
if (!of_have_populated_dt() && (soc_is_exynos4210() ||
soc_is_exynos4212() || soc_is_exynos4412())) {
exynos4_clk_init();
+ exynos4_clk_register_fixed_ext(xxti_f, xusbxti_f);
exynos_mct_init();
return;
}
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index e3ed6bb..6636002 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -24,6 +24,7 @@ void exynos_init_late(void);
extern void exynos_mct_init(void);
#ifdef CONFIG_COMMON_CLK
+extern unsigned long xxti_f, xusbxti_f;
extern void exynos4_clk_init(void);
extern void exynos4_clk_register_fixed_ext(unsigned long, unsigned long);
#else
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 8695d33..afe068f 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -1332,6 +1332,8 @@ static void __init nuri_map_io(void)
{
exynos_init_io(NULL, 0);
s3c24xx_init_uarts(nuri_uartcfgs, ARRAY_SIZE(nuri_uartcfgs));
+ xxti_f = 0;
+ xusbxti_f = 24000000;
}
static void __init nuri_reserve(void)
diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
index 5d9479d..bb72168 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -756,6 +756,8 @@ static void __init origen_map_io(void)
{
exynos_init_io(NULL, 0);
s3c24xx_init_uarts(origen_uartcfgs, ARRAY_SIZE(origen_uartcfgs));
+ xxti_f = 0;
+ xusbxti_f = 24000000;
}
static void __init origen_power_init(void)
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
index a1be874..7d4e72d 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -373,6 +373,8 @@ static void __init smdkv310_map_io(void)
{
exynos_init_io(NULL, 0);
s3c24xx_init_uarts(smdkv310_uartcfgs, ARRAY_SIZE(smdkv310_uartcfgs));
+ xxti_f = 12000000;
+ xusbxti_f = 24000000;
}
static void __init smdkv310_reserve(void)
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 3999c16..3de63cb 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -1095,6 +1095,8 @@ static void __init universal_map_io(void)
exynos_init_io(NULL, 0);
s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));
s5p_set_timer_source(S5P_PWM2, S5P_PWM4);
+ xxti_f = 0;
+ xusbxti_f = 24000000;
}
static void s5p_tv_setup(void)
--
1.7.5.4
next prev parent reply other threads:[~2012-12-30 0:33 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-30 0:33 [PATCH v5 00/12] clk: exynos4: migrate to common clock framework Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 01/12] clk: samsung: add common clock framework helper functions for Samsung platforms Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 02/12] clk: samsung: add pll clock registration helper functions Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 03/12] clk: exynos4: register clocks using common clock framework Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 04/12] ARM: Exynos: Rework timer initialization sequence Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 05/12] ARM: Exynos4: Migrate clock support to common clock framework Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 06/12] ARM: dts: add exynos4 clock controller nodes Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 07/12] ARM: dts: add xxti and xusbxti fixed rate clock nodes for exynos4 based platforms Thomas Abraham
2012-12-30 0:33 ` Thomas Abraham [this message]
2012-12-30 0:33 ` [PATCH v5 09/12] ARM: dts: add clock provider information for all controllers in Exynos4 SoC Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 10/12] ARM: Exynos4: remove auxdata table from machine file Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 11/12] ARM: Exynos: use fin_pll clock as the tick clock source for mct Thomas Abraham
2012-12-30 0:33 ` [PATCH v5 12/12] ARM: Exynos: add support for mct clock setup Thomas Abraham
2012-12-30 5:29 ` [PATCH v5 00/12] clk: exynos4: migrate to common clock framework Olof Johansson
2012-12-31 1:37 ` Kukjin Kim
2013-01-02 19:35 ` Olof Johansson
2012-12-31 5:35 ` Thomas Abraham
2013-01-02 19:33 ` Olof Johansson
2013-01-21 14:29 ` Sylwester Nawrocki
2013-01-21 16:22 ` Tomasz Figa
2013-01-21 19:07 ` Mike Turquette
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