Hi,
Im trying to port a PCI Driver from 2.6.32 to 3.11.6-4-desktop kernel verion.
I tried to update the driver source to compile correctly and load fine.
But when I'm trying to send command some thing like a soft reset which re intializes the configuration table. and at that point of time the I'm getting different value than what I used to get on 2.6.32 kernel version.
3.11.6.4 Kernel verison:
scull_ioctl: SCULL_SOFT_RESET
2014-08-04T08:06:24.839008-07:00 kernel: [ 2065.546754] calling softReset...
2014-08-04T08:06:24.839009-07:00 kernel: [ 2065.546756] softReset: start
2014-08-04T08:06:24.839010-07:00 kernel: [ 2065.546782] msgu_write: Scratchpad(MSGU) regValue=0xfffd addr=0xf7ea1000
2014-08-04T08:06:24.839010-07:00 kernel: [ 2065.546784] msgu_write: Scratchpad(MSGU) regValue=0xffffffff addr=0xf7ea1000
2014-08-04T08:06:25.140002-07:00 kernel: [ 2065.847646] SoftReset: Soft Reset Register's value is 0xffffffff (bits bits [7:6] are not b01)
where as before i.e is in 2.6.32
scull_ioctl: SCULL_SOFT_RESET
Aug 4 16:39:22 kernel: [53428.498546] calling softReset...
Aug 4 16:39:22 kernel: [53428.498552] softReset: start
Aug 4 16:39:22 kernel: [53428.797878] I2O: Scratchpad1 data="" addr=0x48
Aug 4 16:39:23 kernel: [53429.533163] I2O: Scratchpad0 data="" addr=0xf7ee0044
Aug 4 16:39:23 kernel: [53429.533176] bar_num=0x10 cfg_offset=0x2000
Aug 4 16:39:23 kernel: [53429.533183] scull_cfg_table = f7ee2000
Aug 4 16:39:23 kernel: [53429.533190] I2O: Scratchpad1(MSGU) data="" addr=0xf7ee0048
Aug 4 16:39:23 kernel: [53429.533198] I2O: Scratchpad2(IOP) data="" addr=0xf7ee004c
Aug 4 16:39:23 kernel: [53429.533205] I2O: Scratchpad3(IOP) data="" addr=0xf7ee0050
Aug 4 16:39:23 kernel: [53429.533213] Write SCULL Config Table
the function I used for register read is:
unsigned int msgu_reg_read(unsigned int msgu_reg_offset)
{
unsigned int addr;
unsigned int data;
addr = i2o_addr + msgu_reg_offset;
data = "" *)addr);
return data;
}
Could anyone please help me how to solve this issue?
Thank you,
Regards,
OH.
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