ARM: mx3/imx35: Add EPIT support

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

2 files changed, 10 insertions, 4 deletions

diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig
index 2ae10885635a..5cee1a5c4bd2 100644
--- a/arch/arm/mach-mx3/Kconfig
+++ b/arch/arm/mach-mx3/Kconfig
@@ -9,6 +9,7 @@ config ARCH_MX35
         bool
         select ARCH_MXC_IOMUX_V3
         select ARCH_MXC_AUDMUX_V2
+        select HAVE_EPIT
 
 comment "MX3 platforms:"
 
diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c
index 7a62e744a8b0..f11ef990120c 100644
--- a/arch/arm/mach-mx3/clock-imx35.c
+++ b/arch/arm/mach-mx3/clock-imx35.c
@@ -364,8 +364,8 @@ DEFINE_CLOCK(cspi2_clk,  1, CCM_CGR0, 12, get_rate_ipg, NULL);
 DEFINE_CLOCK(ect_clk,    0, CCM_CGR0, 14, get_rate_ipg, NULL);
 DEFINE_CLOCK(edio_clk,   0, CCM_CGR0, 16, NULL, NULL);
 DEFINE_CLOCK(emi_clk,    0, CCM_CGR0, 18, get_rate_ipg, NULL);
-DEFINE_CLOCK(epit1_clk,  0, CCM_CGR0, 20, get_rate_ipg_per, NULL);
-DEFINE_CLOCK(epit2_clk,  1, CCM_CGR0, 22, get_rate_ipg_per, NULL);
+DEFINE_CLOCK(epit1_clk,  0, CCM_CGR0, 20, get_rate_ipg, NULL);
+DEFINE_CLOCK(epit2_clk,  1, CCM_CGR0, 22, get_rate_ipg, NULL);
 DEFINE_CLOCK(esai_clk,   0, CCM_CGR0, 24, NULL, NULL);
 DEFINE_CLOCK(esdhc1_clk, 0, CCM_CGR0, 26, get_rate_sdhc, NULL);
 DEFINE_CLOCK(esdhc2_clk, 1, CCM_CGR0, 28, get_rate_sdhc, NULL);
@@ -456,8 +456,8 @@ static struct clk_lookup lookups[] = {
         _REGISTER_CLOCK(NULL, "ect", ect_clk)
         _REGISTER_CLOCK(NULL, "edio", edio_clk)
         _REGISTER_CLOCK(NULL, "emi", emi_clk)
-        _REGISTER_CLOCK(NULL, "epit", epit1_clk)
-        _REGISTER_CLOCK(NULL, "epit", epit2_clk)
+        _REGISTER_CLOCK("imx-epit.0", NULL, epit1_clk)
+        _REGISTER_CLOCK("imx-epit.1", NULL, epit2_clk)
         _REGISTER_CLOCK(NULL, "esai", esai_clk)
         _REGISTER_CLOCK(NULL, "sdhc", esdhc1_clk)
         _REGISTER_CLOCK(NULL, "sdhc", esdhc2_clk)
@@ -535,8 +535,13 @@ int __init mx35_clocks_init()
         __raw_writel(cgr2, CCM_BASE + CCM_CGR2);
         __raw_writel(cgr3, CCM_BASE + CCM_CGR3);
 
+#ifdef CONFIG_MXC_USE_EPIT
+        epit_timer_init(&epit1_clk,
+                        MX35_IO_ADDRESS(MX35_EPIT1_BASE_ADDR), MX35_INT_EPIT1);
+#else
         mxc_timer_init(&gpt_clk,
                         MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR), MX35_INT_GPT);
+#endif
 
         return 0;
 }