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ARM: imx: factor device tree timer initialization 

Signed-off-by: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
This commit is contained in:
Gilles Chanteperdrix 2014-04-05 17:57:45 +02:00 committed by Shawn Guo
parent bc02cd6982
commit 876292d667
6 changed files with 25 additions and 33 deletions
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9
arch/arm/mach-imx/clk-imx25.c
View File

@ -304,8 +304,6 @@ int __init mx25_clocks_init(void)
int __init mx25_clocks_init_dt(void)
{
struct device_node *np;
void __iomem *base;
int irq;
unsigned long osc_rate = 24000000;
/* retrieve the freqency of fixed clocks from device tree */
@ -325,12 +323,7 @@ int __init mx25_clocks_init_dt(void)
__mx25_clocks_init(osc_rate);
np = of_find_compatible_node(NULL, NULL, "fsl,imx25-gpt");
base = of_iomap(np, 0);
WARN_ON(!base);
irq = irq_of_parse_and_map(np, 0);
mxc_timer_init(base, irq);
mxc_timer_init_dt(of_find_compatible_node(NULL, NULL, "fsl,imx25-gpt"));
return 0;
}

18
arch/arm/mach-imx/clk-imx51-imx53.c
View File

@ -322,9 +322,8 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
static void __init mx50_clocks_init(struct device_node *np)
{
void __iomem *base;
unsigned long r;
int i, irq;
int i;
clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE);
clk[IMX5_CLK_PLL2_SW] = imx_clk_pllv2("pll2_sw", "osc", MX53_DPLL2_BASE);
@ -372,11 +371,7 @@ static void __init mx50_clocks_init(struct device_node *np)
r = clk_round_rate(clk[IMX5_CLK_USBOH3_PER_GATE], 54000000);
clk_set_rate(clk[IMX5_CLK_USBOH3_PER_GATE], r);
np = of_find_compatible_node(NULL, NULL, "fsl,imx50-gpt");
base = of_iomap(np, 0);
WARN_ON(!base);
irq = irq_of_parse_and_map(np, 0);
mxc_timer_init(base, irq);
mxc_timer_init_dt(of_find_compatible_node(NULL, NULL, "fsl,imx50-gpt"));
}
CLK_OF_DECLARE(imx50_ccm, "fsl,imx50-ccm", mx50_clocks_init);
@ -491,9 +486,8 @@ CLK_OF_DECLARE(imx51_ccm, "fsl,imx51-ccm", mx51_clocks_init_dt);
static void __init mx53_clocks_init(struct device_node *np)
{
int i, irq;
int i;
unsigned long r;
void __iomem *base;
clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE);
clk[IMX5_CLK_PLL2_SW] = imx_clk_pllv2("pll2_sw", "osc", MX53_DPLL2_BASE);
@ -590,10 +584,6 @@ static void __init mx53_clocks_init(struct device_node *np)
r = clk_round_rate(clk[IMX5_CLK_USBOH3_PER_GATE], 54000000);
clk_set_rate(clk[IMX5_CLK_USBOH3_PER_GATE], r);
np = of_find_compatible_node(NULL, NULL, "fsl,imx53-gpt");
base = of_iomap(np, 0);
WARN_ON(!base);
irq = irq_of_parse_and_map(np, 0);
mxc_timer_init(base, irq);
mxc_timer_init_dt(of_find_compatible_node(NULL, NULL, "fsl,imx53-gpt"));
}
CLK_OF_DECLARE(imx53_ccm, "fsl,imx53-ccm", mx53_clocks_init);

8
arch/arm/mach-imx/clk-imx6q.c
View File

@ -144,7 +144,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
void __iomem *base;
int i, irq;
int i;
int ret;
clk[dummy] = imx_clk_fixed("dummy", 0);
@ -489,10 +489,6 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
/* Set initial power mode */
imx6q_set_lpm(WAIT_CLOCKED);
np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt");
base = of_iomap(np, 0);
WARN_ON(!base);
irq = irq_of_parse_and_map(np, 0);
mxc_timer_init(base, irq);
mxc_timer_init_dt(of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt"));
}
CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init);

6
arch/arm/mach-imx/clk-imx6sl.c
View File

@ -169,7 +169,6 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
void __iomem *base;
int irq;
int i;
int ret;
@ -385,9 +384,6 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node)
imx6q_set_lpm(WAIT_CLOCKED);
np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-gpt");
base = of_iomap(np, 0);
WARN_ON(!base);
irq = irq_of_parse_and_map(np, 0);
mxc_timer_init(base, irq);
mxc_timer_init_dt(np);
}
CLK_OF_DECLARE(imx6sl, "fsl,imx6sl-ccm", imx6sl_clocks_init);

2
arch/arm/mach-imx/common.h
View File

@ -17,6 +17,7 @@ struct irq_data;
struct platform_device;
struct pt_regs;
struct clk;
struct device_node;
enum mxc_cpu_pwr_mode;
void mx1_map_io(void);
@ -56,6 +57,7 @@ void imx51_init_late(void);
void imx53_init_late(void);
void epit_timer_init(void __iomem *base, int irq);
void mxc_timer_init(void __iomem *, int);
void mxc_timer_init_dt(struct device_node *);
int mx1_clocks_init(unsigned long fref);
int mx21_clocks_init(unsigned long lref, unsigned long fref);
int mx25_clocks_init(void);

15
arch/arm/mach-imx/time.c
View File

@ -28,6 +28,9 @@
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/sched_clock.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <asm/mach/time.h>
@ -328,3 +331,15 @@ void __init mxc_timer_init(void __iomem *base, int irq)
/* Make irqs happen */
setup_irq(irq, &mxc_timer_irq);
}
void __init mxc_timer_init_dt(struct device_node *np)
{
void __iomem *base;
int irq;
base = of_iomap(np, 0);
WARN_ON(!base);
irq = irq_of_parse_and_map(np, 0);
mxc_timer_init(base, irq);
}