help about cann't find smc devcies under kernel 2.6.19

help about cann't find smc devcies under kernel 2.6.19

[jie han]

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Hi all,
I port my mpc8270 board from kernel-2.4.24 to kernel-2.6.19(based on www.denx.de),I setup smc1 as console port.The kernel .config as follow
#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
# CONFIG_SERIAL_CPM_SCC1 is not set
# CONFIG_SERIAL_CPM_SCC2 is not set
# CONFIG_SERIAL_CPM_SCC3 is not set
# CONFIG_SERIAL_CPM_SCC4 is not set
CONFIG_SERIAL_CPM_SMC1=y
# CONFIG_SERIAL_CPM_SMC2 is not set
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256

When I boot it,I cannot get any message dispaly from smc1.I check __log_buf under u-boot environment,the buffer show as follow

001e4844: 363e5365 7269616c 3a204350 4d206472    6>Serial: CPM dr
001e4854: 69766572 20245265 76697369 6f6e3a20    iver $Revision: 
001e4864: 302e3032 20240a3c 363e6370 6d5f7561    0.02 $.<6>cpm_ua
001e4874: 72743a20 5741524e 494e473a 206e6f20    rt: WARNING: no 
001e4884: 55415254 20646576 69636573 20666f75    UART devices fou
001e4894: 6e64206f 6e20706c 6174666f 726d2062    nd on platform b
001e48a4: 7573210a 3c363e63 706d5f75 6172743a    us!.<6>cpm_uart:
001e48b4: 20746865 20647269 76657220 77696c6c     the driver will
001e48c4: 20677565 73732063 6f6e6669 67757261     guess configura
001e48d4: 74696f6e 2c206275 74207468 6973206d    tion, but this m
001e48e4: 6f646520 6973206e 6f206c6f 6e676572    ode is no longer
001e48f4: 20737570 706f7274 65642e0a 3c363e74     supported..<6>t
001e4904: 74794350 4d302061 74204d4d 494f2030    tyCPM0 at MMIO 0
001e4914: 78663030 31316138 30202869 7271203d    xf0011a80 (irq =
001e4924: 20342920 69732061 2043504d 20554152     4) is a CPM UAR
001e4934: 540a3c34 3e52414d 4449534b 20647269    T.<4>RAMDISK dri

It mean system cannot find smc1 under bus when kernel call function cpm_uart_init(),how can i fix this  issue?thanks advance,

By the way,I also create my mpc8270 board support file at /arch/ppc/platform directory,it's like file tqm8260_setup.c.The initialize process as follw,
static int scc8270_platform_notify(struct device *dev)
{
    static const struct platform_notify_dev_map dev_map[] = {
        {
            .bus_id = "fsl-cpm-smc:uart",
            .rtn = scc8270_fixup_uart_pdata,
        },
        {
            .bus_id = "fsl-cpm-fcc",
            .rtn = scc8270_fixup_enet_pdata,
        },
        {
            .bus_id = "fsl-bb-mdio",
            .rtn = scc8270_fixup_mdio_pdata,
        },
        {
            .bus_id = NULL
        }
    };
    platform_notify_map(dev_map,dev);

    return 0;

}

int __init scc8270_init(void)
{
    printk(KERN_NOTICE "scc8270: Init\n");

    platform_notify = scc8270_platform_notify;

    ppc_sys_device_initfunc();

    ppc_sys_device_disable_all();

    ppc_sys_device_enable(MPC82xx_MDIO_BB);

    ppc_sys_device_setfunc(MPC82xx_CPM_SMC1, PPC_SYS_FUNC_UART);
    
    ppc_sys_device_enable(MPC82xx_CPM_SMC1);
    
    ppc_sys_device_enable(MPC82xx_CPM_FCC1);
    
    ppc_sys_device_enable(MPC82xx_CPM_FCC2);
    
    return 0;
}



Sincerely,

Jie


 
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