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Honored Contributor
Honored ContributorLinux on EP4CE10
Hello,
I'm trying to run uClinux on DB_START_EP4CE10 board (EP4CE10 + 16MB SDRAM) I have only partial success. The kernel is 3.1.0-rc4 gitted as: git fetch origin git checkout -t origin/unstable-nios2mmu I've got 3 linux kernel compiles: 1) no initramfs support, 2) initramfs as it is in the trunk uClinux-dist git tree 3) initramfs with some files deleted Only kernel one passes all the way to mounting the filesystem (it obviously hangs, as there is no filesystem):
Linux version 3.1.0-rc4-01162-g45c9dd8 (root@debian) (gcc version 4.1.2)# 46 Mon Jan 24 12:59:31 EST 2011
bootconsole enabled
early_console initialized at 0xe21208b0
On node 0 totalpages: 8192
free_area_init_node: node 0, pgdat c0186cd0, node_mem_map c0196a00
DMA zone: 64 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 8128 pages, LIFO batch:0
pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
pcpu-alloc: 0
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
Kernel command line:
PID hash table entries: 128 (order: -3, 512 bytes)
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory available: 30824k/1618k RAM (1177k kernel code, 440k data)
NR_IRQS:32
Calibrating delay loop... 49.35 BogoMIPS (lpj=246784)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
bio: create slab <bio-0> at 0
Switching to clocksource timer
msgmni has been set to 60
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
ttyJ0 at MMIO 0x21208b0 (irq = 1) is a Altera JTAG UART
console enabled, bootconsole disabled
console enabled, bootconsole disabled
List of all partitions:
No filesystem could mount root, tried:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Linux version 3.1.0-rc4-01162-g45c9dd8 (root@debian) (gcc version 4.1.2)# 48 Mon Jan 24 11:10:17 EST 2011
bootconsole enabled
early_console initialized at 0xe21208b0
On node 0 totalpages: 8192
free_area_init_node: node 0, pgdat c067ecd0, node_mem_map c068ea00
DMA zone: 64 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 8128 pages, LIFO batch:0
pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
pcpu-alloc: 0
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
Kernel command line:
PID hash table entries: 128 (order: -3, 512 bytes)
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory available: 25736k/6706k RAM (1177k kernel code, 5528k data)
NR_IRQS:32
Calibrating delay loop... 49.35 BogoMIPS (lpj=246784)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
bio: create slab <bio-0> at 0
Switching to clocksource timer
msgmni has been set to 50
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
------------------------
WARNING: at /home/mic/nios2-ep4ce10/nios2-linux-2/linux-2.6/fs/sysfs/dir.c:455 sysfs_add_one+0xá!/0x !()
sysfs: cannot create duplicate filename '/devices/virtual/tty/ttyd '
Modules linked in:
Stack from á !:
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00000000
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Call Trace:
------
failed for ttyd with -EEXIST, don't try to register things with the same name in the same directory.
Stack from á ·¸:
c ¸ !
!! ¸ ·
00000000
c á· ¸
!
00000000
00000000
!! ¸¸ ¸
c á· !
c á· !
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000000 !
00000000
00000000
Call Trace:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
ea = 00000000, ra = !!!cá ¸, cause = 13
Kernel panic - not syncing: Oops
Linux version 3.1.0-rc4-01162-g45c9dd8 (root@debian) (gcc version 4.1.2)# 52 Mon Jan 24 11:24:43 EST 2011
bootconsole enabled
early_console initialized at 0xe21208b0
On node 0 totalpages: 8192
free_area_init_node: node 0, pgdat c07f6cd0, node_mem_map c0806a00
DMA zone: 64 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 8128 pages, LIFO batch:0
pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
pcpu-alloc: 0
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
Kernel command line:
PID hash table entries: 128 (order: -3, 512 bytes)
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory available: 24232k/8210k RAM (1177k kernel code, 7032k data)
NR_IRQS:32
Calibrating delay loop... 49.35 BogoMIPS (lpj=246784)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
/*
* This devicetree is generated by sopc2dts
* Sopc2dts is written by Walter Goossens <waltergoossens@home.nl>
* in cooperation with the nios2 community <Nios2-dev@sopc.et.ntust.edu.tw>
*/
/dts-v1/;
/ {
model = "ALTR,niosII_cpu";
compatible = "ALTR,niosII_cpu";
# address-cells = < 1 >;
# size-cells = < 1 >;
cpus {
# address-cells = < 1 >;
# size-cells = < 0 >;
cpu: cpu@0x0 {
device_type = "cpu";
compatible = "ALTR,nios2-11.1";
reg = < 0x00000000 >;
interrupt-controller;
# interrupt-cells = < 1 >;
clock-frequency = < 100000000 >; /* embeddedsw.CMacro.CPU_FREQ type NUMBER */
dcache-line-size = < 32 >; /* embeddedsw.CMacro.DCACHE_LINE_SIZE type NUMBER */
icache-line-size = < 32 >; /* embeddedsw.CMacro.ICACHE_LINE_SIZE type NUMBER */
dcache-size = < 4096 >; /* embeddedsw.CMacro.DCACHE_SIZE type NUMBER */
icache-size = < 4096 >; /* embeddedsw.CMacro.ICACHE_SIZE type NUMBER */
ALTR,implementation = "fast"; /* embeddedsw.CMacro.CPU_IMPLEMENTATION type STRING*/
ALTR,pid-num-bits = < 8 >; /* embeddedsw.CMacro.PROCESS_ID_NUM_BITS type NUMBER */
ALTR,tlb-num-ways = < 16 >; /* embeddedsw.CMacro.TLB_NUM_WAYS type NUMBER */
ALTR,tlb-num-entries = < 256 >; /* embeddedsw.CMacro.TLB_NUM_ENTRIES type NUMBER */
ALTR,tlb-ptr-sz = < 8 >; /* embeddedsw.CMacro.TLB_PTR_SZ type NUMBER */
ALTR,has-mul; /* embeddedsw.CMacro.HARDWARE_MULTIPLY_PRESENT type NUMBER*/
ALTR,reset-addr = < 0xd0000000 >; /* embeddedsw.CMacro.RESET_ADDR type NUMBER */
ALTR,fast-tlb-miss-addr = < 0xc0001000 >; /* embeddedsw.CMacro.FAST_TLB_MISS_EXCEPTION_ADDR type NUMBER */
ALTR,exception-addr = < 0xd0000020 >; /* embeddedsw.CMacro.EXCEPTION_ADDR type NUMBER */
}; //end cpu@0x0 (cpu)
}; //end cpus
memory@0 {
device_type = "memory";
reg = < 0x10000000 0x01000000
0x00001000 0x00001000
0x00002000 0x00001000 >;
}; //end memory@0
sopc@0 {
ranges;
# address-cells = < 1 >;
# size-cells = < 1 >;
device_type = "soc";
compatible = "ALTR,avalon", "simple-bus";
bus-frequency = < 100000000 >;
jtag_uart: serial@0x21208b0 {
compatible = "ALTR,juart-11.1", "ALTR,juart-1.0";
reg = < 0x021208B0 0x00000008 >;
interrupt-parent = < &cpu >;
interrupts = < 1 >;
}; //end serial@0x21208b0 (jtag_uart)
led_pio: gpio@0x2120870 {
compatible = "ALTR,pio-11.1", "ALTR,pio-1.0";
reg = < 0x02120870 0x00000010 >;
width = < 5 >; /* width type NUMBER */
resetvalue = < 0 >; /* resetValue type NUMBER */
}; //end gpio@0x2120870 (led_pio)
sys_clk_timer: timer@0x2002000 {
compatible = "ALTR,timer-11.1", "ALTR,timer-1.0";
reg = < 0x02002000 0x00000020 >;
interrupt-parent = < &cpu >;
interrupts = < 0 >;
clock-frequency = < 100000000 >;
}; //end timer@0x2002000 (sys_clk_timer)
sysid: sysid@0x2002048 {
compatible = "ALTR,sysid-11.1", "ALTR,sysid-1.0";
reg = < 0x02002048 0x00000008 >;
}; //end sysid@0x2002048 (sysid)
high_res_timer: timer@0x2120820 {
compatible = "ALTR,timer-11.1", "ALTR,timer-1.0";
reg = < 0x02120820 0x00000020 >;
interrupt-parent = < &cpu >;
interrupts = < 4 >;
clock-frequency = < 100000000 >;
}; //end timer@0x2120820 (high_res_timer)
}; //end sopc@0
chosen {
bootargs = "debug console=ttyAL0,115200";
}; //end chosen
}; //end /
