From: York Sun <yorksun@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] powerpc/85xx: Enhance get_sys_info() to check clocking mode
Date: Wed, 23 Apr 2014 15:35:40 -0700 [thread overview]
Message-ID: <5358403C.2060902@freescale.com> (raw)
In-Reply-To: <1397541852-15249-1-git-send-email-vijay.rai@freescale.com>
On 04/14/2014 11:04 PM, Vijay Rai wrote:
> T1040 and it's variants provide "Single Oscillator Source" Reference Clock Mode.
>
> In this mode, single onboard oscillator(DIFF_SYSCLK) can provide the reference clock
> (100MHz) to the following PLLs:
> ? Platform PLL
> ? Core PLLs
> ? USB PLL
> ? DDR PLL, etc
>
> The cfg_eng_use0 of porsr1 register identifies whether the SYSCLK (single-ended) or
> DIFF_SYSCLK (differential) is selected as the clock input to the chip.
>
> get_sys_info has been enhanced to add the diff_sysclk so that the
> various drivers can be made aware of ths diff sysclk configuration and
> act accordingly.
>
> Other changes:
> -single_src to ddr_refclk_sel, as it is use for checking ddr reference clock
> -Removed the print of single_src from get_sys_info as this will be
> -printed whenever somebody calls get_sys_info which is not appropriate.
> -Add print of single_src in checkcpu as it is called only once during initialization
>
> Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
> Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
> Signed-off-by: Vijay Rai <vijay.rai@freescale.com>
> ---
Applied to u-boot-mpc85xx/master, thanks.
York
prev parent reply other threads:[~2014-04-23 22:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-15 6:04 [U-Boot] [PATCH] powerpc/85xx: Enhance get_sys_info() to check clocking mode Vijay Rai
2014-04-23 22:35 ` York Sun [this message]
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