[PATCH] arm, davinci: configure davinci aemif chipselects through OF
Sergei Shtylyov
sshtylyov at mvista.com
Sun Dec 4 07:25:45 EST 2011
Hello.
On 04-12-2011 13:41, Heiko Schocher wrote:
> Signed-off-by: Heiko Schocher<hs at denx.de>
> Cc: davinci-linux-open-source at linux.davincidsp.com
> Cc: devicetree-discuss at lists.ozlabs.org
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: grant.likely at secretlab.ca
> Cc: Sekhar Nori<nsekhar at ti.com>
> Cc: Kevin Hilman<khilman at ti.com>
> Cc: Wolfgang Denk<wd at denx.de>
> diff --git a/arch/arm/mach-davinci/aemif.c b/arch/arm/mach-davinci/aemif.c
> index 1ce70a9..12c559f 100644
> --- a/arch/arm/mach-davinci/aemif.c
> +++ b/arch/arm/mach-davinci/aemif.c
[...]
> @@ -131,3 +138,99 @@ int davinci_aemif_setup_timing(struct davinci_aemif_timing *t,
> return 0;
> }
> EXPORT_SYMBOL(davinci_aemif_setup_timing);
> +
> +#if defined(CONFIG_OF)
> +static int dv_get_value(struct device_node *np, const char *name)
> +{
> + const u32 *data;
> + int len;
> +
> + data = of_get_property(np, name,&len);
> + if (data)
> + return be32_to_cpu(readl(data));
Why readl() here?! Device tree is not a peripheral device...
> +
> + return -EINVAL;
> +}
Isn't there already a standard helper for that, of_property_read_u32()?
WBR, Sergei
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