From: "Miguel Angel Alvarez" <ma.alvarez@ziv.es>
To: <linuxppc-embedded@ozlabs.org>
Subject: Using SPI in lite5200
Date: Thu, 27 Dec 2007 11:59:48 +0100 [thread overview]
Message-ID: <477385A4.8020808@ziv.es> (raw)
Hi.
We are trying to use the SPI subsystem in the MPC5200 to write a driver=20
that supports SC16IS752 (SPI->2 UARTs).
Although I have read the spi-summary in the Documentation of the kernel, =
I am not quite sure of having understood all the pieces that I require=20
to make the system work.
First of all, I am using the SPI associated to PSC3, so in the=20
mpc52xx_devices.c I have added a "[MPC52xx_PSC_SPI]" entry with exactly=20
the same parameters as "[MPC52xx_PSC3]", except for the name, which I=20
assign to mpc52xx-psc-spi (I suppose this is the correct driver for the=20
master of the SPI bus).
That is:
[MPC52xx_PSC_SPI] =3D {
.name =3D "mpc52xx-psc-spi",
.id =3D 2,
.num_resources =3D 2,
.resource =3D (struct resource[]) {
{
.start =3D 0x2400,
.end =3D 0x249f,
.flags =3D IORESOURCE_MEM,
},
{
.start =3D MPC52xx_PSC3_IRQ,
.end =3D MPC52xx_PSC3_IRQ,
.flags =3D IORESOURCE_IRQ,
},
},
},
My question is: Am I using the correct IRQ? Where can I find which is=20
the correct one?
Thanks
Miguel =C1ngel=20
=20
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next reply other threads:[~2007-12-27 11:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-27 10:59 Miguel Angel Alvarez [this message]
2007-12-27 15:17 ` Using SPI in lite5200 Miguel Angel Alvarez
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