From: Kever Yang <kever.yang@rock-chips.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] rockchip: spl: RK3399: add COUNTER_FREQUENCY define to rk3399_common.h
Date: Fri, 24 Mar 2017 11:39:23 +0800 [thread overview]
Message-ID: <58D494EB.3070009@rock-chips.com> (raw)
In-Reply-To: <1490308065-12420-1-git-send-email-philipp.tomsich@theobroma-systems.com>
Hi Philipp,
On 03/24/2017 06:27 AM, Philipp Tomsich wrote:
> The BootROM of the RK3399 SoC does not initialise the cntfrq_el0 (which
> holds the value 0 (zero) on entry into the SPL. This causes the timebase
> for U-Boot not to advance (and will cause a hang where a timeout would
> be expected... e.g. if something goes wrong during MMC/SD card startup).
>
> This change defines COUNTER_FREQUENCY, which is used by the AArch64 init
> code in arch/arm/cpu/armv8/start.S to set up cntfrq_el0 (if necessary).
>
> Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
> ---
>
> include/configs/rk3399_common.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/include/configs/rk3399_common.h b/include/configs/rk3399_common.h
> index aeee805..c44f8ad 100644
> --- a/include/configs/rk3399_common.h
> +++ b/include/configs/rk3399_common.h
> @@ -19,6 +19,8 @@
> #define CONFIG_SPL_DRIVERS_MISC_SUPPORT
> #define CONFIG_SPL_SERIAL_SUPPORT
>
> +#define COUNTER_FREQUENCY 24000000
> +
> #define CONFIG_SYS_NS16550_MEM32
>
> #define CONFIG_SYS_TEXT_BASE 0x00200000
Reveiwed-by: Kever Yang <kever.yang@rock-chips.com>
Thanks,
- Kever
next prev parent reply other threads:[~2017-03-24 3:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-23 22:27 [U-Boot] [PATCH] rockchip: spl: RK3399: add COUNTER_FREQUENCY define to rk3399_common.h Philipp Tomsich
2017-03-24 3:39 ` Kever Yang [this message]
2017-03-26 3:47 ` Simon Glass
2017-04-02 0:05 ` Simon Glass
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