Great find! Regards, Andy
----- Original Message ---- From: Meher <[EMAIL PROTECTED]> To: Constantine Shulyupin <[EMAIL PROTECTED]>; [EMAIL PROTECTED]; davinci-linux-open-source@linux.davincidsp.com Sent: Thursday, May 24, 2007 8:49:33 AM Subject: git kernel boot problem: Solved: Able to boot with USB built in: patch attached On 5/23/07, Constantine Shulyupin <[EMAIL PROTECTED]> wrote: > Sorry, I don't know. > I could suggest: > 1. Debug kernel boot with JTAG. > 2. Try to boot last known good configuration. > > On 5/23/07, kalyan chakravarthy <[EMAIL PROTECTED]> wrote: > > > > > > http://wiki.linuxquestions.org/wiki/DaVinci-Linux_FAQ#git_kernel_boot_problem > > > > MACHINE_NUMBER is not the ONLY problem that causes git kernel to not boot(or > > not display any messages after "booting linux kernel") > > Unless USB is compiled as a module (vs buitl-in) it does not work. Is this > > a known problem and does any one know if it is fixed? > > > > Regards, > > Kalyan > > This problem is solved.. As I sent in my earlier mail, kernel was crashing because of a call to i2c and by the time USB core makes a call to i2c, i2c subsystem is not initialized. So as a workaround for this I change two files: changed subsys_initcall(musb_init) to fs_initcall(musb)init); in drivers/usb/musb/plat_uds.c changed module_init(davinci_i2c_client_init) to fs_initcall(davinci_i2c_client) in arch/arm/mach-davinci/i2c-client.c I am attaching a patch file along with the mail.. This si the first time I ahve generated a patch so if there is any thing wrong I have done please let me know.. -- Regards, Meher --- arch/arm/mach-davinci/i2c-client.orig.c Thu May 24 10:45:26 2007 +++ arch/arm/mach-davinci/i2c-client.c Thu May 24 10:41:30 2007 @@ -245,5 +245,6 @@ i2c_del_driver(&davinci_i2c_client_driver); } -module_init(davinci_i2c_client_init); +//module_init(davinci_i2c_client_init); +fs_initcall(davinci_i2c_client_init); module_exit(davinci_i2c_client_exit); --- drivers/usb/musb/plat_uds.orig.c Thu May 24 10:46:45 2007 +++ drivers/usb/musb/plat_uds.c Thu May 24 10:21:26 2007 @@ -1998,7 +1998,8 @@ /* make us init after usbcore and before usb * gadget and host-side drivers start to register */ -subsys_initcall(musb_init); +//subsys_initcall(musb_init); +fs_initcall(musb_init); static void __exit musb_cleanup(void) { _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source@linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
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