Help to setup non-zero PPC_MEMSTART on PPC440
Hi I have a custom embedded system with a 440GP derived CPU that places the memory starting at 0x1000 which requires a non-zero PPC_MEMSTART. I use denx linux kernel version is 2.6.24-rc8.build ARCH=powerpc. I set PPC_MEMSTART = 0x1000(include/asm-powerpc/page_32.h) I get boot linux message as follow: RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize RAMDISK: Compressed image found at block 0 VFS: Mounted root (ext2 filesystem) readonly. Freeing unused kernel memory: 128k init init has generated signal 4 but has no handler for it kernel panic - no syncing: Attempted to kill init! Rebooting in 180 seconds.. How do I fix it?Do I miss anything?Thanks for your help ahead. Sincerely, Jie ___ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
issue about CONFIG_PPC_MMU and CONFIG_SMP define
Hi guys, I want to simulate compile mutli-core using sequoia(IBM/AMCC 44x processor) source code under kernel arch/powerpc directory.I want to define CONFIG_SMP, I sould define CONFIG_STD_MMU at first,but AMCC 44x don't need to config CONFIG_STD_MMU.Is CONFIG_STD_MMU just for freescale chip? How can I do next? Thanks ahead for your help, Best regards Jie Han - Never miss a thing. Make Yahoo your homepage.___ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
Help: I will port amcc yucca board to denx kernel ARCH=powepc directory.How to config dts file?
Hi all,
I want to port amcc yucca board denx linux kernel from ARCH=ppc to
ARCH=powerpc. I used sequoia.dts for yucca baord demo device tree file.
I set uart0 as follow:
UART0: [EMAIL PROTECTED] {
device_type = serial;
compatible = ns16550;
reg = f200 8;
virtual-reg = f200;
clock-frequency = 0; /* Filled in by zImage */
current-speed = 1c200;
interrupt-parent = UIC0;
interrupts = 0 4;
};
chosen {
linux,stdout-path = /plb/opb/[EMAIL PROTECTED];
bootargs = console=ttyS0,115200;
};
the other parts of dts file is same as sequoia.dts.
When I run kernel.the tlb entry setup is wrong,the physical addres should be
4f200,but kernel calcuate is 1f200.I know yucca dts file isn't
right.how can I fix it?Give me some advices,Thanks ahead,
Sincerely,
Jie
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How to config linux kernel(ARCH=powerpc)?
Hi everyone: I downloaded linux kernel 2.6 from www.denx.de and unzip the kernel source code.My operation is make mrproper at first and then make pasemi_defconfig,it didn't work,the show message as follow: linux-2.6-denx-make mrproper linux-2.6-denx-make pasemi_defconfig kernel/power/Kconfig:68:warning: 'select' used by config symbol 'PM_SLEEP_SMP' refers to undefined symbol 'HOTPLUG_CPU' *** *** Can't find default configuration arch/ppc/configs/pasemi_defconfig! *** make[1]: *** [pasemi_defconfig] Error 1 make: *** [pasemi_defconfig] Error 2 I make the other default config file under arch/powperpc/configs directory,it show the same wrong message.How can I do fix it ?Thanks ahead, Sincerely, Jie - Never miss a thing. Make Yahoo your homepage.___ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
help about cann't find smc devcies under kernel 2.6.19
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 4d2064726Serial: CPM dr
001e4854: 69766572 20245265 76697369 6f6e3a20iver $Revision:
001e4864: 302e3032 20240a3c 363e6370 6d5f75610.02 $.6cpm_ua
001e4874: 72743a20 5741524e 494e473a 206e6f20rt: WARNING: no
001e4884: 55415254 20646576 69636573 20666f75UART devices fou
001e4894: 6e64206f 6e20706c 6174666f 726d2062nd on platform b
001e48a4: 7573210a 3c363e63 706d5f75 6172743aus!.6cpm_uart:
001e48b4: 20746865 20647269 76657220 77696c6c the driver will
001e48c4: 20677565 73732063 6f6e6669 67757261 guess configura
001e48d4: 74696f6e 2c206275 74207468 6973206dtion, but this m
001e48e4: 6f646520 6973206e 6f206c6f 6e676572ode is no longer
001e48f4: 20737570 706f7274 65642e0a 3c363e74 supported..6t
001e4904: 74794350 4d302061 74204d4d 494f2030tyCPM0 at MMIO 0
001e4914: 78663030 31316138 30202869 7271203dxf0011a80 (irq =
001e4924: 20342920 69732061 2043504d 20554152 4) is a CPM UAR
001e4934: 540a3c34 3e52414d 4449534b 20647269T.4RAMDISK 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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help about configuring and initializing serial console under kernel 2.6.18-rc2
am trying to take a working embedded linux system
from kernel 2.4.24 to
2.6.18. The hardware is a custom board using a MPC8270
processor.
The working system uses u-boot 1.1.4 with linux kernel
2.4.24.
I am using the same u-boot and I am trying to port
linux kernel 2.6.18
to our platform. Tthe kernel seems to hang after being
uncompressed. Here is what I see after running bootm
from u-boot:
## Booting image at 0040 ...
Image Name: Linux-2.6.18/Ocean BoradBand Ltd
Image Type: PowerPC Linux Kernel Image (gzip
compressed)
Data Size:995213 Bytes = 971.9 kB
Load Address:
Entry Point:
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
## Current stack ends at 0x0FB73C38 = set upper limit
to 0x0080
## cmdline at 0x007FFF00 ... 0x007FFF3D
bd address = 0x0FB73FB4
memstart= 0x
memsize = 0x1000
flashstart = 0xFE00
flashsize = 0x0200
flashoffset = 0x
sramstart = 0x
sramsize= 0x
immr_base = 0xF000
bootflags = 0x0001
vco =264 MHz
sccfreq = 66 MHz
brgfreq = 16.500 MHz
intfreq =198 MHz
cpmfreq =132 MHz
busfreq = 66 MHz
ethaddr = 00:13:09:00:01:04
IP addr = 192.168.2.46
baudrate= 19200 bps
No initrd
## Transferring control to Linux (at address )
...
I check the __log_buf buffer and found message as
follow
020c634: 20736368 6564756c 65722063 66712072
scheduler cfq r
0020c644: 65676973 74657265 64202864 65666175
egistered (defau
0020c654: 6c74290a 3c363e53 65726961 6c3a2043
lt).6Serial: C
0020c664: 504d2064 72697665 72202452 65766973PM
driver $Revis
0020c674: 696f6e3a 20302e30 3220240a 3c363e63ion:
0.02 $.6c
0020c684: 706d5f75 6172743a 20574152 4e494e47
pm_uart: WARNING
0020c694: 3a206e6f 20554152 54206465 76696365: no
UART device
0020c6a4: 7320666f 756e6420 6f6e2070 6c617466s
found on platf
0020c6b4: 6f726d20 62757321 0a3c363e 63706d5form
bus!.6cpm_
0020c6c4: 75617274 3a207468 65206472 69766572uart:
the driver
0020c6d4: 2077696c 6c206775 65737320 636f6e66 will
guess conf
0020c6e4: 69677572 6174696f 6e2c2062 75742074
iguration, but t
0020c6f4: 68697320 6d6f6465 20697320 6e6f206chis
mode is no l
0020c704: 6f6e6765 72207375 70706f72 7465642eonger
supported.
I got a result,I failed to initialize smc1 port,the
function is
static int cpm_uart_init(void) ---dev =
bus_find_device(platform_bus_type, NULL, 0,
match_is_uart),I always got dev == NULL,
how can I define struct platform_bus_type
My kernel config file about serial drivers as follow
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# 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
define cpm parallel port D as follow
_/* PD9 */ { 0, 1, 0, 1, 0, 0 },
_/* SMC1 TXD */
_/* PD8 */ { 0, 1, 0, 0, 0, 0 },
_/* SMC1 RXD */
Any ideas would be appreciated.
Regards,
Jie
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what is difference between cpm_uart_cpm1.c and cpm_uart_cpm2.c
I am new about kernel 2.6.18.I just want to know what's difference bwtween cpm_uart_cpm1.c and cpm_uart_cpm2.c?and how to initialize cmp module? thanks advance, Jie __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
boot kernel 2.6.18 is hang???
I am trying to take a working embedded linux system from kernel 2.4 to 2.6. The hardware is a custom board using a mpc8270vr processor. The working system uses u-boot 1.1.4 with linux kernel 2.4.24. I am using the same u-boot and I am trying to port linux kernel 2.6.18. I believe I have done everything required to get the kernel booting. However, the kernel seems to hang after being uncompressed. Here is what I see after running bootm from u-boot: OLT= tftp 50 uImage Using FCC1 ETHERNET device TFTP from server 192.168.2.45; our IP address is 192.168.2.109 Filename 'uImage'. Load address: 0x50 Loading: # # # done Bytes transferred = 995314 (f2ff2 hex) OLT= bootm 50 ## Booting image at 0050 ... Image Name: Linux-2.6.18/Ocean BoradBand Ltd Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size:995250 Bytes = 971.9 kB Load Address: Entry Point: Verifying Checksum ... OK Uncompressing Kernel Image ... OK log_buf context is OLT= md 1b9d60 100 001b9d60: c020c0a4 4000 . at . 001b9d70: 0001 c01b9d74 c01b9d74 0001...t...t 001b9d80: c01b9d80 c01b9d80 61637175acqu 001b9d90: 6972655f 636f6e73 6f6c655f 73656d00ire_console_sem. 001b9da0: 63616c6c 5f636f6e 736f6c65 5f647269call_console_dri 001b9db0: 76657273 0001vers 001b9dc0: 1388 c001571c..W. 001b9dd0: c001589c ..X. 001b9de0: 001b9df0: 001b9e00: 001b9e10: 001b9e20: 001b9e30: 0001 65786974exit 001b9e40: 5f6d6d00 5f5f6578 69745f73 69676e61_mm.__exit_signa 001b9e50: 6c00 72656c65 6173655f 7461736bl...release_task 001b9e60: 63686f6f 73655f6e 65775f70choose_new_p 001b9e70: 6172656e 7400 666f7267 65745f6farent...forget_o 001b9e80: 72696769 6e616c5f 70617265 6e74riginal_parent.. 001b9e90: 65786974 5f6e6f74 69667900 646f5f65exit_notify.do_e 001b9ea0: 78697400 646f5f67 726f7570 5f657869xit.do_group_exi 001b9eb0: 7400 77616974 5f746173 6b5f636ft...wait_task_co 001b9ec0: 6e74696e 75656400 77616974 5f746173ntinued.wait_tas 001b9ed0: 6b5f7a6f 6d626965 77616974k_zombiewait 001b9ee0: 5f746173 6b5f7374 6f707065 6400_task_stopped... 001b9ef0: 646f5f77 61697400 000a 0001do_wait. 001b9f00: c0019b50 6370755f...Pcpu_ 001b9f10: 63616c6c 6261636b 0001callback 001b9f20: 0001 5f5f6c6f 63616c5f 62685f65__local_bh_e 001b9f30: 6e61626c 6500 0001 0001nable... 001b9f40: 5f6c6f63 616c5f62 685f656e 61626c65_local_bh_enable 001b9f50: 7461736b 6c65745f 61637469tasklet_acti 001b9f60: 6f6e 7461736b 6c65745f 68695f61on..tasklet_hi_a 001b9f70: 6374696f 6e00 0001 0001ction... 001b9f80: 6c6f6361 6c5f6268 5f656e61 626c6500local_bh_enable. 001b9f90: 0001 6c6f6361 6c5f6268 5f656e61local_bh_ena 001b9fa0: 626c655f 6970 0001 5f5f6c6fble_ip..__lo 001b9fb0: 63616c5f 62685f64 69736162 6c65cal_bh_disable.. 001b9fc0: c018a9b0 0200 001b9fd0: 001b9fe0: c018a9b8 0100 001b9ff0: c0075590..U. 001ba000: c0075878 ..Xx 001ba010: 001ba020: c001a53c ... 001ba030: c0075014 ..P. 001ba040: 001ba050: 001ba060: 001ba070: c0075590 c0075878 ..U...Xx Any ideas would be appreciated. Regards, Jie - Do you Yahoo!? Next-gen email? Have it all with the all-new Yahoo! Mail Beta. -- next part -- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20060816/42cfd099/attachment.htm
hoe to define CPM_MAP_ADDR ?
I am trying to take a working embedded linux system from kernel 2.4 to
2.6. The hardware is a custom board using a MPC8270 processor.
The working system uses u-boot 1.1.1 with linux kernel 2.4.24.
I am using the same u-boot and I am trying to port linux kernel 2.6.15
to our platform. I just wonder hwo to define CPM_MAP_ADDR to my config file
at /arch/ppc/platforms/olt8270.h,thsi show file context as follow
#ifndef __OLT8270_PLATFORM
#define __OLT8270_PLATFORM
//#define CPM_MAP_ADDR ((uint)0xf000)
#define IMAP_ADDR ((uint)0xf000)
#define BOOTROM_RESTART_ADDR ((uint)0xfff00100)
/* For our show_cpuinfo hooks. */
#define CPUINFO_VENDOR Ocean Broadband Ltd
#define CPUINFO_MACHINE OLT8270 PowerPC
/* A Board Information structure that is given to a program when
* prom starts it up.
*/
typedef struct bd_info {
unsigned long bi_memstart; /* Memory start address */
unsigned long bi_memsize; /* Memory (end) size in bytes */
unsigned long bi_flashstart; /* start of FLASH memory */
unsigned long bi_flashsize; /* size of FLASH memory */
unsigned long bi_flashoffset; /* reserved area for startup monitor */
unsigned long bi_sramstart; /* start of SRAM memory */
unsigned long bi_sramsize;/* size of SRAM memory */
unsigned long bi_immr; /* IMMR when called from boot rom */
unsigned long bi_bootflags; /* boot flag (for Lynx OS) */
unsigned long bi_ip_addr; /* IP Address */
unsigned char bi_enetaddr[6]; /* Ethernet address */
unsigned short bi_ethspeed;/* Ethernet speed in Mbps */
unsigned long bi_intfreq; /* Internal Freq, in Hz */
unsigned long bi_busfreq; /* Bus Freq, in MHz */
unsigned long bi_cpmfreq; /* CPM Freq, in MHz */
unsigned long bi_brgfreq; /* BRG Freq, in MHz */
unsigned long bi_sccfreq; /* SCC Freq, in MHz */
unsigned long bi_vco; /* VCO Out from PLL */
unsigned long bi_baudrate; /* Default console baud rate */
} bd_t;
extern bd_t m8xx_board_info;
#endif /* __OLT8270_PLATFORM */
Sincerely,
Jie
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