Re: [PATCH v5 08/11] ARM: imx: add gpt system timer support for imx7d

[Rob Herring <robherring2@xxxxxxxxx>]

On Tue, Apr 21, 2015 at 9:53 AM,  <Frank.Li@xxxxxxxxxxxxx> wrote:
> From: Frank Li <Frank.Li@xxxxxxxxxxxxx>
>
> Add GPT system timer support for i.MX7D, it has same hardware
> as i.MX6DL.
>
> Signed-off-by: Frank Li <Frank.Li@xxxxxxxxxxxxx>
> Signed-off-by: Anson Huang <b20788@xxxxxxxxxxxxx>
> ---
>  arch/arm/mach-imx/time.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-imx/time.c b/arch/arm/mach-imx/time.c
> index 15d18e1..7c1d8a3 100644
> --- a/arch/arm/mach-imx/time.c
> +++ b/arch/arm/mach-imx/time.c
> @@ -321,7 +321,7 @@ static void __init _mxc_timer_init(int irq,
>                 tctl_val = V2_TCTL_FRR | V2_TCTL_WAITEN | MXC_TCTL_TEN;
>                 if (clk_get_rate(clk_per) == V2_TIMER_RATE_OSC_DIV8) {
>                         tctl_val |= V2_TCTL_CLK_OSC_DIV8;
> -                       if (cpu_is_imx6dl() || cpu_is_imx6sx()) {
> +                       if (cpu_is_imx6dl() || cpu_is_imx6sx() || cpu_is_imx7d()) {

You should get this information from DT so you aren't changing this
again on the next chip.

>                                 /* 24 / 8 = 3 MHz */
>                                 __raw_writel(7 << V2_TPRER_PRE24M,
>                                         timer_base + MXC_TPRER);
> @@ -383,3 +383,4 @@ CLOCKSOURCE_OF_DECLARE(mx53_timer, "fsl,imx53-gpt", mxc_timer_init_dt);
>  CLOCKSOURCE_OF_DECLARE(mx6q_timer, "fsl,imx6q-gpt", mxc_timer_init_dt);
>  CLOCKSOURCE_OF_DECLARE(mx6sl_timer, "fsl,imx6sl-gpt", mxc_timer_init_dt);
>  CLOCKSOURCE_OF_DECLARE(mx6sx_timer, "fsl,imx6sx-gpt", mxc_timer_init_dt);
> +CLOCKSOURCE_OF_DECLARE(mx7d_timer, "fsl,imx7d-gpt", mxc_timer_init_dt);
> --
> 1.9.1
>
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