From: Sascha Hauer <s.hauer@pengutronix.de>
To: Christian Hemp <c.hemp@phytec.de>
Cc: barebox@lists.infradead.org, Daniel Schultz <d.schultz@phytec.de>
Subject: Re: [PATCH 1/2] nand: imx6: Changed default NAND clock
Date: Fri, 21 Oct 2016 09:11:47 +0200 [thread overview]
Message-ID: <20161021071147.iacxwcdqz7sx7gs2@pengutronix.de> (raw)
In-Reply-To: <1476970807-43811-1-git-send-email-c.hemp@phytec.de>
On Thu, Oct 20, 2016 at 03:40:06PM +0200, Christian Hemp wrote:
> From: Daniel Schultz <d.schultz@phytec.de>
>
> The Barebox recognized false bad erase blocks while booting from a
> Spansion NAND (1). This error occurred due a to high clock. The
> Kernel sets the default NAND clock to 22Mhz. So, to fix this error and
> to be more identical with the Kernel, the Barebox should be too.
The timing is changed afterwards to a faster mode and the clock is
changed again. Does that work for you properly?
Sascha
>
> 1: nand: NAND device: Manufacturer ID: 0x01, Chip ID: 0xd3 (AMD/Spansion
> S34ML08G2), 1024MiB, page size: 2048, OOB size: 128
>
> Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
> Tested-by: Stefan Lengfeld <s.lengfeld@phytec.de>
> Signed-off-by: Christian Hemp <c.hemp@phytec.de>
> ---
> drivers/mtd/nand/nand_mxs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/nand/nand_mxs.c b/drivers/mtd/nand/nand_mxs.c
> index 01aa063..fe955e8 100644
> --- a/drivers/mtd/nand/nand_mxs.c
> +++ b/drivers/mtd/nand/nand_mxs.c
> @@ -2145,7 +2145,7 @@ static int mxs_nand_probe(struct device_d *dev)
>
> if (mxs_nand_is_imx6(nand_info)) {
> clk_disable(nand_info->clk);
> - clk_set_rate(nand_info->clk, 96000000);
> + clk_set_rate(nand_info->clk, 22000000);
> clk_enable(nand_info->clk);
> nand_info->dma_channel_base = 0;
> } else {
> --
> 1.9.1
>
>
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> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
>
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next prev parent reply other threads:[~2016-10-21 7:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-20 13:40 Christian Hemp
2016-10-20 13:40 ` [PATCH 2/2] mtd: nand: nand_mxs: Fix readtotal calculation Christian Hemp
2016-10-21 7:18 ` Sascha Hauer
2016-10-24 8:51 ` Stefan Lengfeld
2016-10-21 7:11 ` Sascha Hauer [this message]
2016-10-24 9:20 ` [PATCH 1/2] nand: imx6: Changed default NAND clock Stefan Lengfeld
2016-10-25 6:21 ` Sascha Hauer
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