Thank you for the answer, Grant ! I knew nothing about port_config register before your answer :-( I haven't changed any processor registers yet because i'm still searching where i can do this. Can you tell me, is it UBoot specific or kernel specific or both ? And i already know about MPC5200's device tree in 2.6.x kernel but not in 2.4.x...
On 9/18/07, Grant Likely <[EMAIL PROTECTED]> wrote: > On 9/18/07, Leopold Stotch <[EMAIL PROTECTED]> wrote: > > 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. > > Have you made the appropriate changes to the port_config register? > > Cheers, > g. > > > > -- > Grant Likely, B.Sc., P.Eng. > Secret Lab Technologies Ltd. > [EMAIL PROTECTED] > (403) 399-0195 > -- Best regards, Leopold Stotch _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
