From: "Leopold Stotch" <l.butterz@gmail.com>
To: linuxppc-embedded@ozlabs.org
Subject: PSC in UART mode on TQM5200S
Date: Tue, 18 Sep 2007 14:13:28 +0400 [thread overview]
Message-ID: <53b5d6e90709180313n7ef053ddqfb771f44d9bd44ef@mail.gmail.com> (raw)
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Hello, everyone !
I have TQM5200S module and development board.
It runs factory UBoot and latest DENX's linuxppc_2_4_devel kernel.
I want to configure all TQM5200S's onboard PSC's as UART's.
TQM5200S's onboard PSC's are connected to custom board
that makes all electrical things as my hardware engineer says...
So changed $HOME/linuxppc_2_4_devel/arch/ppc/platforms/tqm5200.h
the following way:
#ifdef CONFIG_PS2MULT
#define RS_TABLE_SIZE 4
#else
#if defined(CONFIG_SPI_EVAL) || defined(CONFIG_TB5200)
#define RS_TABLE_SIZE 2
#elif defined(CONFIG_CAM5200)
#define RS_TABLE_SIZE 6
#else
#define RS_TABLE_SIZE 3
#endif
#endif
changed to
#ifdef CONFIG_PS2MULT
#define RS_TABLE_SIZE 4
#else
#if defined(CONFIG_SPI_EVAL) || defined(CONFIG_TB5200)
#define RS_TABLE_SIZE 2
#elif defined(CONFIG_CAM5200)
#define RS_TABLE_SIZE 6
#else
#define RS_TABLE_SIZE 6
#endif
#endif
and
#else /* default */
#define SERIAL_PORT_DFNS \
STD_PSC_OP(1) \
STD_PSC_OP(2) \
STD_PSC_OP(3)
#endif
changed to
#else /* default */
#define SERIAL_PORT_DFNS \
STD_PSC_OP(1) \
STD_PSC_OP(2) \
STD_PSC_OP(3) \
STD_PSC_OP(4) \
STD_PSC_OP(5) \
STD_PSC_OP(6)
#endif
After rebuilding the kernel, dmesg says:
...
ttyS0 on PSC1
ttyS1 on PSC2
ttyS2 on PSC3
ttyS3 on PSC4
ttyS4 on PSC5
ttyS5 on PSC6
...
But when i do "echo 1 > /dev/ttyS4" i receive nothing at the other end.
The questions are:
Is it possible to reconfigure all PSC's as UART's ?
Should i change something in UBoot or everything i did was wrong ?
P.S. Sorry for my poor english and newbie questions :-)
--
Best regards,
Leopold Stotch
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next reply other threads:[~2007-09-18 10:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-18 10:13 Leopold Stotch [this message]
2007-09-18 14:01 ` PSC in UART mode on TQM5200S Grant Likely
2007-09-19 7:04 ` Leopold Stotch
[not found] ` <53b5d6e90709182355y17fd5965u5f212be74068442e@mail.gmail.com>
[not found] ` <fa686aa40709190733ufd38f1fx7771bd0e98376081@mail.gmail.com>
2007-09-19 14:50 ` Leopold Stotch
2007-09-18 22:38 ` Wolfgang Denk
2007-09-19 7:40 ` Leopold Stotch
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