diff options
Diffstat (limited to 'arch/arm/plat-mxc/time.c')
| -rw-r--r-- | arch/arm/plat-mxc/time.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/arch/arm/plat-mxc/time.c b/arch/arm/plat-mxc/time.c index 7daf7c9a413b..00e8e659e667 100644 --- a/arch/arm/plat-mxc/time.c +++ b/arch/arm/plat-mxc/time.c @@ -25,6 +25,7 @@ #include <linux/irq.h> #include <linux/clockchips.h> #include <linux/clk.h> +#include <linux/err.h> #include <mach/hardware.h> #include <asm/sched_clock.h> @@ -57,6 +58,7 @@ /* MX31, MX35, MX25, MX5 */ #define V2_TCTL_WAITEN (1 << 3) /* Wait enable mode */ #define V2_TCTL_CLK_IPG (1 << 6) +#define V2_TCTL_CLK_PER (2 << 6) #define V2_TCTL_FRR (1 << 9) #define V2_IR 0x0c #define V2_TSTAT 0x08 @@ -279,9 +281,21 @@ static int __init mxc_clockevent_init(struct clk *timer_clk) return 0; } -void __init mxc_timer_init(struct clk *timer_clk, void __iomem *base, int irq) +void __init mxc_timer_init(void __iomem *base, int irq) { uint32_t tctl_val; + struct clk *timer_clk; + struct clk *timer_ipg_clk; + + timer_clk = clk_get_sys("imx-gpt.0", "per"); + if (IS_ERR(timer_clk)) { + pr_err("i.MX timer: unable to get clk\n"); + return; + } + + timer_ipg_clk = clk_get_sys("imx-gpt.0", "ipg"); + if (!IS_ERR(timer_ipg_clk)) + clk_prepare_enable(timer_ipg_clk); clk_prepare_enable(timer_clk); @@ -295,7 +309,7 @@ void __init mxc_timer_init(struct clk *timer_clk, void __iomem *base, int irq) __raw_writel(0, timer_base + MXC_TPRER); /* see datasheet note */ if (timer_is_v2()) - tctl_val = V2_TCTL_CLK_IPG | V2_TCTL_FRR | V2_TCTL_WAITEN | MXC_TCTL_TEN; + tctl_val = V2_TCTL_CLK_PER | V2_TCTL_FRR | V2_TCTL_WAITEN | MXC_TCTL_TEN; else tctl_val = MX1_2_TCTL_FRR | MX1_2_TCTL_CLK_PCLK1 | MXC_TCTL_TEN; |