Il Friday 21 March 2008 02:55:40 Thomas Bogendoerfer ha scritto: > On Sun, Mar 16, 2008 at 04:45:06PM +0100, Matteo Croce wrote: > > Tried I get teh usual broken serial output: > > > > IP6 oover IPv4 tuneliing driver > > NET: eggistered protooll family 17 > > VFS: Monteed root (squahfss filesystem)reaadonly. > > Linux version 2.6.25-rc6-00000-g151de9e-dirty (tsbogend@xxxxxxxxxxxxxxx) > (gcc version 3.3.3 (Debian 20040320)) #29 Fri Mar 21 02:40:21 CET 2008 > console [early0] enabled > CPU revision is: 00018448 (MIPS 4KEc) > TI AR7 (Unknown), ID: 0x5700, Revision: 0x00 > Determined physical RAM map: > memory: 02000000 @ 14000000 (usable) > Zone PFN ranges: > Normal 81920 -> 90112 > Movable zone start PFN for each node > early_node_map[1] active PFN ranges > 0: 81920 -> 90112 > Built 1 zonelists in Zone order, mobility grouping on. Total pages: > 8128 > Kernel command line: console=ttyS0,115200 > Primary instruction cache 16kB, VIPT, 4-way, linesize 16 bytes. > Primary data cache 16kB, 4-way, VIPT, no aliases, linesize 16 bytes > Synthesized clear page handler (26 instructions). > Synthesized copy page handler (46 instructions). > PID hash table entries: 128 (order: 7, 512 bytes) > Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) > Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) > Memory: 29700k/32768k available (2075k kernel code, 3068k reserved, 466k > data, 136k init, 0k highmem) > Mount-cache hash table entries: 512 > net_namespace: 152 bytes > NET: Registered protocol family 16 > SCSI subsystem initialized > NET: Registered protocol family 2 > Time: MIPS clocksource has been installed. > IP route cache hash table entries: 1024 (order: 0, 4096 bytes) > TCP established hash table entries: 1024 (order: 1, 8192 bytes) > TCP bind hash table entries: 1024 (order: 0, 4096 bytes) > TCP: Hash tables configured (established 1024 bind 1024) > TCP reno registered > io scheduler noop registered > io scheduler anticipatory registered (default) > io scheduler deadline registered > Serial: 8250/16550 driver $Revision: 1.90 $ 2 ports, IRQ sharing > disabled > serial8250: ttyS0 at MMIO 0x8610e03 (irq = 15) is a 16550A > console handover: boot [early0] -> real [ttyS0] > serial8250: ttyS1 at MMIO 0x8610f03 (irq = 16) is a 16550A > loop: module loaded > Fixed MDIO Bus: probed > ar7_wdt: failed to unlock WDT disable reg > ar7_wdt: failed to unlock WDT prescale reg > ar7_wdt: failed to unlock WDT change reg > ar7_wdt: timer margin 59 seconds (prescale 65535, change 57180, freq > 62500000) > TCP cubic registered > NET: Registered protocol family 1 > NET: Registered protocol family 17 > RPC: Registered udp transport module. > RPC: Registered tcp transport module. > Root-NFS: No NFS server available, giving up. > VFS: Unable to mount root fs via NFS, trying floppy. > List of all partitions: > No filesystem could mount root, tried: > Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(2,0) > Rebooting in 3 seconds.. > > I don't see any problems with using PORT_16550A. What I'm still > wondering how your kernel could work at all, since there is a > missing case for setting up the TLB refill handler. Something like > the patch below. > > And most of the AR7 device driver code will not work for big endian. > The log above is from a big endian AR7 system, where I needed > to disable CPMAC to get it booting that far. > > Thomas. > > > diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c > index 3a93d4c..382738c 100644 > --- a/arch/mips/mm/tlbex.c > +++ b/arch/mips/mm/tlbex.c > @@ -307,6 +307,7 @@ static void __cpuinit build_tlb_write_entry(u32 **p, struct uasm_label **l, > case CPU_R12000: > case CPU_R14000: > case CPU_4KC: > + case CPU_4KEC: > case CPU_SB1: > case CPU_SB1A: > case CPU_4KSC: > > Actually we use this for 2.6.24: Index: linux-2.6.24/arch/mips/mm/tlbex.c =================================================================== --- linux-2.6.24/arch/mips/mm/tlbex.c 2007-10-10 04:31:38.000000000 +0800 +++ linux-2.6.24/arch/mips/mm/tlbex.c 2007-10-10 13:52:34.000000000 +0800 @@ -902,7 +902,6 @@ case CPU_R10000: case CPU_R12000: case CPU_R14000: - case CPU_4KC: case CPU_SB1: case CPU_SB1A: case CPU_4KSC: @@ -933,6 +932,7 @@ tlbw(p); break; + case CPU_4KC: case CPU_4KEC: case CPU_24K: case CPU_34K:
