From: Sascha Hauer <sha@pengutronix.de>
To: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 1/2] ddr: imx8m: warn about unsupported frequencies
Date: Wed, 7 Dec 2022 07:56:03 +0100 [thread overview]
Message-ID: <20221207065603.GX29728@pengutronix.de> (raw)
In-Reply-To: <20221205132835.3002605-1-a.fatoum@pengutronix.de>
On Mon, Dec 05, 2022 at 02:28:34PM +0100, Ahmad Fatoum wrote:
> When adding a new board with a yet unsupported DDR frequency, PLL
> configuration is silently skipped, leading to a later hang during DDRC
> configuration. Improve the bring up user experience by printing a
> warning in that case. The user is then expected to extend
> imx8mm_fracpll_table, so PBL knows how PLLs should be configured for
> this new frequency.
>
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
> drivers/ddr/imx8m/ddrphy_utils.c | 1 +
> 1 file changed, 1 insertion(+)
Applied, thanks
Sascha
>
> diff --git a/drivers/ddr/imx8m/ddrphy_utils.c b/drivers/ddr/imx8m/ddrphy_utils.c
> index c5d94e305086..3e03d4b75c9e 100644
> --- a/drivers/ddr/imx8m/ddrphy_utils.c
> +++ b/drivers/ddr/imx8m/ddrphy_utils.c
> @@ -344,6 +344,7 @@ void ddrphy_init_set_dfi_clk(unsigned int drate_mhz, enum ddrc_type type)
> case 400: drate = DDR_400; break;
> case 100: drate = DDR_100; break;
> default:
> + pr_warn("Unsupported frequency %u\n", drate_mhz);
> return;
> }
>
> --
> 2.30.2
>
>
>
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prev parent reply other threads:[~2022-12-07 6:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-05 13:28 Ahmad Fatoum
2022-12-05 13:28 ` [PATCH 2/2] ddr: imx8m: use pr_warn instead of plain prints Ahmad Fatoum
2022-12-07 6:56 ` Sascha Hauer [this message]
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