[U-Boot] [PATCH 3/6] timer: dw-apb: add reset handling
Marek Vasut
marex at denx.de
Wed Jul 24 07:21:26 UTC 2019
On 7/23/19 10:27 PM, Simon Goldschmidt wrote:
> To use this timer on socfpga as system tick, it needs to take itself out
> of reset.
>
> Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
> ---
>
> drivers/timer/dw-apb-timer.c | 18 +++++++++++++++++-
> 1 file changed, 17 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/timer/dw-apb-timer.c b/drivers/timer/dw-apb-timer.c
> index 86312b8dc7..fad22be8c9 100644
> --- a/drivers/timer/dw-apb-timer.c
> +++ b/drivers/timer/dw-apb-timer.c
> @@ -8,6 +8,7 @@
> #include <common.h>
> #include <dm.h>
> #include <clk.h>
> +#include <reset.h>
> #include <timer.h>
>
> #include <asm/io.h>
> @@ -18,7 +19,8 @@
> #define DW_APB_CTRL 0x8
>
> struct dw_apb_timer_priv {
> - fdt_addr_t regs;
> + fdt_addr_t regs;
> + struct reset_ctl_bulk resets;
> };
>
> static int dw_apb_timer_get_count(struct udevice *dev, u64 *count)
> @@ -42,6 +44,12 @@ static int dw_apb_timer_probe(struct udevice *dev)
> struct clk clk;
> int ret;
>
> + ret = reset_get_bulk(dev, &priv->resets);
> + if (ret)
> + dev_warn(dev, "Can't get reset: %d\n", ret);
Shouldn't this be printed by the subsystem ?
[...]
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