Hi, Bob.
1. check this file: linux\drivers\serial\mcfserial.c:
Make sure you have the following. If not, you need to update this file
from the current version of uClinux kernel.
static struct mcf_serial mcfrs_table[] = {
{ /* ttyS0 */
.magic = 0,
.addr = (volatile unsigned char *)
(MCF_MBAR+MCFUART_BASE1),
.irq = IRQBASE,
.flags = ASYNC_BOOT_AUTOCONF,
},
#ifdef MCFUART_BASE2
{ /* ttyS1 */
.magic = 0,
.addr = (volatile unsigned char *)
(MCF_MBAR+MCFUART_BASE2),
.irq = IRQBASE+1,
.flags = ASYNC_BOOT_AUTOCONF,
},
#endif
#ifdef MCFUART_BASE3
{ /* ttyS2 */
.magic = 0,
.addr = (volatile unsigned char *) (MCF_MBAR+MCFUART_BASE3),
.irq = IRQBASE+2,
.flags = ASYNC_BOOT_AUTOCONF,
},
#endif
};
2.you need to configure the pins third serial port is using in this
function:
static void mcfrs_irqinit(struct mcf_serial *info)
{
...
}
Have fun,
Allen
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Bob Grimes
Sent: Wednesday, April 02, 2008 12:12 PM
To: uClinux Mailing List
Subject: [uClinux-dev] Third serial port on Freescale Coldfire mcv5329
Hi all,
I'm using a customized Freescale M5329EVB-based board, and want to use
the third Coldfire serial port. The first two serial ports of the
mcf5329 chip work fine, as one would expect; however, the third
doesn't. Looking at the kernel boot messages, I see the following:
ColdFire internal UART serial driver version 1.00
ttyS0 at 0xfc060000 (irq = 90) is a builtin ColdFire UART
ttyS1 at 0xfc064000 (irq = 91) is a builtin ColdFire UART
Does anyone know why the third port is not showing up, and what I
should do to fix that?
I'm guessing a (hardware) pin conflict between the third serial port
and other on-chip peripherals may be the reason the third port isn't
supported, but perhaps I'm confused.
TIA,
-Bob
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