ARM: imx: use dynamic mapping for timer

Pass physical address of timer block to mxc_timer_init() call, which in
turn does dynamic mapping within the function.  Thus, we can avoid using
static mapping in clock drivers.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/mach-imx/clk-imx1.c b/arch/arm/mach-imx/clk-imx1.c
index 37c307a..f4a76e8 100644 (file)
--- a/arch/arm/mach-imx/clk-imx1.c
+++ b/arch/arm/mach-imx/clk-imx1.c
@@ -98,7 +98,7 @@ int __init mx1_clocks_init(unsigned long fref)
        clk_register_clkdev(clk[IMX1_CLK_DUMMY], "ipg", "imx1-fb.0");
        clk_register_clkdev(clk[IMX1_CLK_DUMMY], "ahb", "imx1-fb.0");
 
-       mxc_timer_init(MX1_IO_ADDRESS(MX1_TIM1_BASE_ADDR), MX1_TIM1_INT);
+       mxc_timer_init(MX1_TIM1_BASE_ADDR, MX1_TIM1_INT);
 
        return 0;
 }

diff --git a/arch/arm/mach-imx/clk-imx21.c b/arch/arm/mach-imx/clk-imx21.c
index 4b4c753..facdf1d 100644 (file)
--- a/arch/arm/mach-imx/clk-imx21.c
+++ b/arch/arm/mach-imx/clk-imx21.c
@@ -153,7 +153,7 @@ int __init mx21_clocks_init(unsigned long lref, unsigned long href)
        clk_register_clkdev(clk[IMX21_CLK_I2C_GATE], NULL, "imx21-i2c.0");
        clk_register_clkdev(clk[IMX21_CLK_OWIRE_GATE], NULL, "mxc_w1.0");
 
-       mxc_timer_init(MX21_IO_ADDRESS(MX21_GPT1_BASE_ADDR), MX21_INT_GPT1);
+       mxc_timer_init(MX21_GPT1_BASE_ADDR, MX21_INT_GPT1);
 
        return 0;
 }

diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index ab6349e..aeb1998 100644 (file)
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -229,7 +229,7 @@ int __init mx27_clocks_init(unsigned long fref)
        clk_register_clkdev(clk[IMX27_CLK_EMMA_AHB_GATE], "ahb", "m2m-emmaprp.0");
        clk_register_clkdev(clk[IMX27_CLK_EMMA_IPG_GATE], "ipg", "m2m-emmaprp.0");
 
-       mxc_timer_init(MX27_IO_ADDRESS(MX27_GPT1_BASE_ADDR), MX27_INT_GPT1);
+       mxc_timer_init(MX27_GPT1_BASE_ADDR, MX27_INT_GPT1);
 
        return 0;
 }

diff --git a/arch/arm/mach-imx/clk-imx31.c b/arch/arm/mach-imx/clk-imx31.c
index 286ef42..8a103a2 100644 (file)
--- a/arch/arm/mach-imx/clk-imx31.c
+++ b/arch/arm/mach-imx/clk-imx31.c
@@ -182,7 +182,7 @@ int __init mx31_clocks_init(unsigned long fref)
        mx31_revision();
        clk_disable_unprepare(clk[iim_gate]);
 
-       mxc_timer_init(MX31_IO_ADDRESS(MX31_GPT1_BASE_ADDR), MX31_INT_GPT);
+       mxc_timer_init(MX31_GPT1_BASE_ADDR, MX31_INT_GPT);
 
        return 0;
 }

diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
index a0d2b57..4ef1e8b 100644 (file)
--- a/arch/arm/mach-imx/clk-imx35.c
+++ b/arch/arm/mach-imx/clk-imx35.c
@@ -279,7 +279,7 @@ int __init mx35_clocks_init(void)
 #ifdef CONFIG_MXC_USE_EPIT
        epit_timer_init(MX35_IO_ADDRESS(MX35_EPIT1_BASE_ADDR), MX35_INT_EPIT1);
 #else
-       mxc_timer_init(MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR), MX35_INT_GPT);
+       mxc_timer_init(MX35_GPT1_BASE_ADDR, MX35_INT_GPT);
 #endif
 
        return 0;

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 0f04e30..5cddd15 100644 (file)
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -44,7 +44,7 @@ void imx27_soc_init(void);
 void imx31_soc_init(void);
 void imx35_soc_init(void);
 void epit_timer_init(void __iomem *base, int irq);
-void mxc_timer_init(void __iomem *, int);
+void mxc_timer_init(unsigned long, int);
 int mx1_clocks_init(unsigned long fref);
 int mx21_clocks_init(unsigned long lref, unsigned long fref);
 int mx27_clocks_init(unsigned long fref);

diff --git a/arch/arm/mach-imx/time.c b/arch/arm/mach-imx/time.c
index 15d18e1..acb1ff5 100644 (file)
--- a/arch/arm/mach-imx/time.c
+++ b/arch/arm/mach-imx/time.c
@@ -344,12 +344,13 @@ static void __init _mxc_timer_init(int irq,
        setup_irq(irq, &mxc_timer_irq);
 }
 
-void __init mxc_timer_init(void __iomem *base, int irq)
+void __init mxc_timer_init(unsigned long pbase, int irq)
 {
        struct clk *clk_per = clk_get_sys("imx-gpt.0", "per");
        struct clk *clk_ipg = clk_get_sys("imx-gpt.0", "ipg");
 
-       timer_base = base;
+       timer_base = ioremap(pbase, SZ_4K);
+       BUG_ON(!timer_base);
 
        _mxc_timer_init(irq, clk_per, clk_ipg);
 }