Hi All,
I finally got the FLASH controller driver working and it is now successfully reporting the presence of 2GB Flash in the board. I used the new "libata" driver code present in the new kernel source under drivers/ata/. Also did the required additions in the device tree to provide the IO port, IRQ and PIO mode details to the driver. However now I am getting the below errors. [ 4.200145] scsi host0: pata_of_platform [ 4.236999] ata1: PATA max PIO4 mmio cmd 0xe0000000 ctl 0xe200000c irq 63 [ 4.439985] ata1.01: ATA-7: 2GB ATA Flash Disk, C A254G4, max UDMA/133 [ 4.463419] ata1.01: 3571344 sectors, multi 0: LBA48 [ 4.483384] ata1.01: configured for PIO [ 4.512936] scsi 0:0:1:0: Direct-Access ATA 2GB ATA Flash Di 54G4 PQ: 0 ANSI: 5 [ 4.555994] sd 0:0:1:0: [sda] 3571344 512-byte logical blocks: (1.83 GB/1.70 GiB) [ 4.591975] sd 0:0:1:0: [sda] Write Protect is off [ 4.611307] sd 0:0:1:0: [sda] Mode Sense: 00 3a 00 00 [ 4.629733] sd 0:0:1:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 4.823702] [ 4.823702] AT THE START OF CPU_STARTUP_ENTRY FUNCTION [ 4.823734] [ 4.823734] *****INSIDE IDLE LOOP******** [ 36.163139] ata1: drained 65536 bytes to clear DRQ [ 36.185451] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 36.199598] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 36.199598] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 36.229002] ata1: soft resetting link [ 36.559637] ata1.01: configured for PIO [ 36.567563] ata1.01: device reported invalid CHS sector 0 [ 36.578396] ata1: EH complete [ 68.919134] ata1: drained 65536 bytes to clear DRQ [ 68.928530] ata1.01: limiting speed to UDMA7:PIO5 [ 68.937856] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 68.952487] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 68.952487] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 68.981876] ata1: soft resetting link [ 69.311683] ata1.01: configured for PIO [ 69.319304] ata1.01: device reported invalid CHS sector 0 [ 69.330274] ata1: EH complete [ 101.687134] ata1: drained 65536 bytes to clear DRQ [ 101.696646] ata1.01: limiting speed to PIO0 [ 101.704921] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 101.719288] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 101.719288] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 101.748593] ata1: soft resetting link [ 102.079594] ata1.01: configured for PIO [ 102.087204] ata1.01: device reported invalid CHS sector 0 [ 102.098144] ata1: EH complete [ 132.407134] ata1: drained 65536 bytes to clear DRQ [ 132.416687] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 132.430752] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 132.430752] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 132.460168] ata1: soft resetting link [ 132.791594] ata1.01: configured for PIO [ 132.799048] ata1.01: device reported invalid CHS sector 0 [ 132.810076] ata1: EH complete [ 165.175163] ata1: drained 65536 bytes to clear DRQ [ 165.186023] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 165.200192] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 165.200192] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 165.229531] ata1: soft resetting link Can anyone suggest why I am getting the above errors? Thanks, Sachin. -- Sent from: http://linuxppc.10917.n7.nabble.com/linuxppc-dev-f3.html
