[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash
Michael Hornung
mhornung.linux at gmail.com
Thu Aug 2 11:00:48 CEST 2012
Hi Fabio,
>>
>> Have you had any progress on this?
>
I had some progress on my issue, here a summary of what I did:
- I configured a SD-Card as described in doc/README.imximage
- I did the following changes to the U-Boot sources:
+++ b/board/freescale/mx35pdk/imximage.cfg
+BOOT_FROM sd
+#WEIM config-CS5 init
+DATA 4 0xB8002050 0x0000d843
+DATA 4 0xB8002054 0x22252521
+DATA 4 0xB8002058 0x22220a00
+
+# DDR2 init
+DATA 4 0xB8001010 0x00000304
+DATA 4 0xB8001010 0x0000030C
+DATA 4 0xB8001004 0x007ffc3f
+DATA 4 0xB8001000 0x92220000
+DATA 4 0x80000400 0x12345678
+DATA 4 0xB8001000 0xA2220000
+DATA 4 0x80000000 0x87654321
+DATA 4 0x80000000 0x87654321
+DATA 4 0xB8001000 0xB2220000
+DATA 1 0x80000233 0xda
+DATA 1 0x82000780 0xda
+DATA 1 0x82000400 0xda
+DATA 4 0xB8001000 0x82226080
+DATA 4 0xB8001004 0x007ffc3f
+DATA 4 0xB800100C 0x007ffc3f
+DATA 4 0xB8001010 0x00000304
+DATA 4 0xB8001008 0x00002000
+++ b/boards.cfg
-mx35pdk arm arm1136 -
freescale mx35
+mx35pdk arm arm1136 -
freescale mx35
mx35pdk:IMX_CONFIG=board/freescale/mx35pdk/imximage.cfg
+++ b/include/configs/mx35pdk.h
-#define CONFIG_SYS_TEXT_BASE 0xA0000000
+#define CONFIG_SYS_TEXT_BASE 0x87800000
+++ b/config.mk
-DBGFLAGS= -g # -DDEBUG
+DBGFLAGS= -g -DDEBUG
This ended up as described earlier, with an U-Boot promp stoppping
with the following output:
> CPU: Freescale i.MX35 rev 2.1 at 532 MHz.
> Reset cause: POR
> I2C: ready
Then I did the following change:
+++ b/board/freescale/mx35pdk/mx35pdk.c
size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
- size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
+ size2 = 0;
+ /*size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);*/
gd->ram_size = size1 + size2;
And here the result:
U-Boot 2012.07-00024-g181e4a3 (Aug 02 2012 - 09:49:35)
U-Boot code: 87800000 -> 8783ACC8 BSS: -> 87841704
CPU: Freescale i.MX35 rev 2.1 at 532 MHz.
Reset cause: POR
I2C: ready
monitor len: 00041704
ramsize: 08000000
TLB table at: 87ff0000
Top of RAM usable for U-Boot at: 87ff0000
Reserving 261k for U-Boot at: 87fae000
Reserving 1280k for malloc() at: 87e6e000
Reserving 40 Bytes for Board Info at: 87e6dfd8
Reserving 120 Bytes for Global Data at: 87e6df60
New Stack Pointer is: 87e6df50
RAM Configuration:
Bank #0: 80000000 128 MiB
Bank #1: 90000000 128 MiB
relocation Offset is: 007ae000
dram_bank_mmu_setup: bank: 0
dram_bank_mmu_setup: bank: 1
monitor flash len: 00041508
Now running in RAM - U-Boot at: 87fae000
Flash: flash detect cfi
fwc addr a0000000 cmd f0 f0 8bit x 8 bit
fwc addr a0000000 cmd ff ff 8bit x 8 bit
fwc addr a0000055 cmd 98 98 8bit x 8 bit
is= cmd 51(Q) addr a0000010 is= 14 51
fwc addr a0000555 cmd 98 98 8bit x 8 bit
is= cmd 51(Q) addr a0000010 is= 14 51
fwc addr a0000000 cmd f0 f0f0 16bit x 8 bit
fwc addr a0000000 cmd ff ffff 16bit x 8 bit
fwc addr a00000aa cmd 98 9898 16bit x 8 bit
is= cmd 51(Q) addr a0000020 is= 0051 5151
fwc addr a0000aaa cmd 98 9898 16bit x 8 bit
is= cmd 51(Q) addr a0000020 is= 0051 5151
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
fwc addr a0000000 cmd ff 00ff 16bit x 16 bit
fwc addr a00000aa cmd 98 0098 16bit x 16 bit
is= cmd 51(Q) addr a0000020 is= 0051 0051
is= cmd 52(R) addr a0000022 is= 0052 0052
is= cmd 59(Y) addr a0000024 is= 0059 0059
device interface is 2
found port 2 chip 2 port 16 bits chip 16 bits
00 : 51 52 59 02 00 40 00 00 00 00 00 27 36 00 00 06 QRY.. at .....'6...
10 : 06 09 13 03 05 03 02 1a 02 00 06 00 01 ff 01 00 ................
20 : 02 00 00 00 00 00 00 00 00 00 00 00 00 8b fb 87 ................
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
fwc addr a0000aaa cmd aa 00aa 16bit x 16 bit
fwc addr a0000554 cmd 55 0055 16bit x 16 bit
fwc addr a0000aaa cmd 90 0090 16bit x 16 bit
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
fwc addr a00000aa cmd 98 0098 16bit x 16 bit
manufacturer is 2
manufacturer id is 0x1
device id is 0x227e
device id2 is 0x2301
cfi version is 0x3133
size_ratio 1 port 16 bits chip 16 bits
found 1 erase regions
erase region 0: 0x020001ff
erase_region_count = 512 erase_region_size = 131072
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
flash_protect ON: from 0xA0000000 to 0xA0041507
fwc addr a0000000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 0
fwc addr a0020000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 1
fwc addr a0040000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 2
flash_protect ON: from 0xA0080000 to 0xA009FFFF
fwc addr a0080000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 4
flash_protect ON: from 0xA00A0000 to 0xA00BFFFF
fwc addr a00a0000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 5
64 MiB
NAND: 4096 MiB
Destroy Hash Table: 87fe94c4 table = (null)
Create Hash Table: N=512
INSERT: table 87fe94c4, filled 1/521 rv 87e90f44 ==> name="addip"
value="if test -n ${ipdyn};then run addip_dyn;else run addip_sta;fi"
INSERT: table 87fe94c4, filled 2/521 rv 87e90a34 ==> name="addip_dyn"
value="setenv bootargs ${bootargs} ip=dhcp"
INSERT: table 87fe94c4, filled 3/521 rv 87e91028 ==> name="addip_sta"
value="setenv bootargs ${bootargs}
ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
panic=1"
INSERT: table 87fe94c4, filled 4/521 rv 87e90a70 ==> name="addmisc"
value="setenv bootargs ${bootargs} ${misc}"
INSERT: table 87fe94c4, filled 5/521 rv 87e91898 ==> name="addmtd"
value="setenv bootargs ${bootargs} ${mtdparts}"
INSERT: table 87fe94c4, filled 6/521 rv 87e91ad8 ==> name="addtty"
value="setenv bootargs ${bootargs} console=ttymxc0,${baudrate}"
INSERT: table 87fe94c4, filled 7/521 rv 87e90e60 ==> name="baudrate"
value="115200"
INSERT: table 87fe94c4, filled 8/521 rv 87e91eec ==>
name="bootargs_nfs" value="setenv bootargs console=ttymxc0,${baudrate}
root=/dev/nfs ip=${ipaddr} rw nfsroot=${serverip}:${rootpath}"
INSERT: table 87fe94c4, filled 9/521 rv 87e910dc ==> name="bootcmd"
value="run net_nfs"
INSERT: table 87fe94c4, filled 10/521 rv 87e915e0 ==> name="bootdelay" value="3"
INSERT: table 87fe94c4, filled 11/521 rv 87e912bc ==> name="bootfile"
value="/3stack/uImage"
INSERT: table 87fe94c4, filled 12/521 rv 87e91058 ==> name="ethact"
value="smc911x-0"
INSERT: table 87fe94c4, filled 13/521 rv 87e90cec ==> name="ethaddr"
value="00:04:9f:01:2f:9a"
INSERT: table 87fe94c4, filled 14/521 rv 87e90b24 ==> name="ethprime"
value="smc911x"
INSERT: table 87fe94c4, filled 15/521 rv 87e909d4 ==> name="flash_nfs"
value="run bootargs_nfs; nand read ${loadaddr} 0x300000 0x200000;
bootm"
INSERT: table 87fe94c4, filled 16/521 rv 87e9173c ==>
name="flash_self" value="run ramargs addip addtty addmtd addmisc;bootm
${kernel_addr} ${ramdisk_addr}"
INSERT: table 87fe94c4, filled 17/521 rv 87e91928 ==> name="hostname"
value=""mx35pdk""
INSERT: table 87fe94c4, filled 18/521 rv 87e91e68 ==> name="ipaddr"
value="192.168.1.10"
INSERT: table 87fe94c4, filled 19/521 rv 87e91118 ==>
name="kernel_addr_r" value="80800000"
INSERT: table 87fe94c4, filled 20/521 rv 87e915d4 ==> name="load"
value="tftp ${loadaddr} ${u-boot}"
INSERT: table 87fe94c4, filled 21/521 rv 87e914fc ==> name="loadaddr"
value="0x80800000"
INSERT: table 87fe94c4, filled 22/521 rv 87e90854 ==> name="net_nfs"
value="tftp ${load_addr} ${bootfile}; run bootargs_nfs; bootm
${load_addr}"
INSERT: table 87fe94c4, filled 23/521 rv 87e913d0 ==>
name="net_self_load" value="tftp ${kernel_addr_r} ${bootfile};tftp
${ramdisk_addr_r} ${ramdisk_file};"
INSERT: table 87fe94c4, filled 24/521 rv 87e91f34 ==> name="netdev" value="eth0"
INSERT: table 87fe94c4, filled 25/521 rv 87e90950 ==> name="nfsargs"
value="setenv bootargs root=/dev/nfs rw
nfsroot=${serverip}:${rootpath}"
INSERT: table 87fe94c4, filled 26/521 rv 87e90704 ==> name="ramargs"
value="setenv bootargs root=/dev/ram rw"
INSERT: table 87fe94c4, filled 27/521 rv 87e918f8 ==>
name="ramdisk_file" value=""mx35pdk"/uRamdisk"
INSERT: table 87fe94c4, filled 28/521 rv 87e91664 ==> name="rootpath"
value="/opt/eldk-5.2.1/armv6/rootfs-qte-sdk"
INSERT: table 87fe94c4, filled 29/521 rv 87e90fa4 ==> name="serverip"
value="192.168.1.1"
INSERT: table 87fe94c4, filled 30/521 rv 87e91340 ==> name="stderr"
value="serial"
INSERT: table 87fe94c4, filled 31/521 rv 87e90e00 ==> name="stdin"
value="serial"
INSERT: table 87fe94c4, filled 32/521 rv 87e91850 ==> name="stdout"
value="serial"
INSERT: table 87fe94c4, filled 33/521 rv 87e91af0 ==> name="u-boot"
value=""mx35pdk"/u-boot.bin"
INSERT: table 87fe94c4, filled 34/521 rv 87e91ef8 ==>
name="uboot_addr" value="0xa0000000"
INSERT: table 87fe94c4, filled 35/521 rv 87e91040 ==> name="upd"
value="if run load;then echo Updating u-boot;if run update;then echo
U-Boot updated;else echo Error updating u-boot !;echo Board without
bootloader !!;fi;else echo U-Boot not downloaded..exiting;fi"
INSERT: table 87fe94c4, filled 36/521 rv 87e910f4 ==> name="update"
value="protect off ${uboot_addr} +40000;erase ${uboot_addr}
+40000;cp.b ${loadaddr} ${uboot_addr} ${filesize}"
INSERT: free(data = 87e706d0)
INSERT: done
In: serial
Out: serial
Err: serial
Board: MX35 PDK 2.0
Net: eth_init: fec_probe(bd)
fec_mii_setspeed: mii_speed 0000001a
smc911x-0, FEC
### main_loop entered: bootdelay=3
### main_loop: bootcmd="run net_nfs"
Hit any key to stop autoboot: 0
MX35 U-Boot >
U-Boot is running now (any idea why?), but unfortunately it does not
run the kernel:
MX35 U-Boot > run net_nfs
Trying smc911x-0
smc911x: detected LAN9217 controller
smc911x: phy initialized
smc911x: MAC 00:04:9f:01:2f:9a
TFTP blocksize = 1468, timeout = 5000 ms
Using smc911x-0 device
TFTP from server 192.168.1.1; our IP address is 192.168.1.10
Filename '/3stack/uImage'.
Load address: 0x80800000
Loading: send option "timeout 5"
Got OACK: timeout 5
Blocksize ack: 1468, 1468
#################################################################
#################################################################
#########
done
Bytes transferred = 2036440 (1f12d8 hex)
CACHE: Misaligned operation at range [80800000, 809f12d8]
## Current stack ends at 0x87e6dbf8 * kernel: default image load
address = 0x80800000
## Booting kernel from Legacy Image at 80800000 ...
Image Name: Linux-2.6.31-00203-g63769bf
Created: 2012-05-15 10:06:22 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2036376 Bytes = 1.9 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
kernel data at 0x80800040, len = 0x001f1298 (2036376)
## No init Ramdisk
ramdisk start = 0x00000000, ramdisk end = 0x00000000
Loading Kernel Image ... OK
OK
kernel loaded at 0x80008000, end = 0x801f9298
using: ATAGS
## Transferring control to Linux (at address 80008000)...
Starting kernel ...
Uncompressing Linux......................................................................................................................................
done, booting the kernel.
And that's it, no more kernel output.
Here my environment
addip=if test -n ${ipdyn};then run addip_dyn;else run addip_sta;fi
addip_dyn=setenv bootargs ${bootargs} ip=dhcp
addip_sta=setenv bootargs ${bootargs}
ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
panic=1
addmisc=setenv bootargs ${bootargs} ${misc}
addmtd=setenv bootargs ${bootargs} ${mtdparts}
addtty=setenv bootargs ${bootargs} console=ttymxc0,${baudrate}
baudrate=115200
bootargs_nfs=setenv bootargs console=ttymxc0,${baudrate} root=/dev/nfs
ip=${ipaddr} rw nfsroot=${serverip}:${rootpath}
bootcmd=run net_nfs
bootdelay=3
bootfile=/3stack/uImage
ethact=smc911x-0
ethaddr=00:04:9f:01:2f:9a
ethprime=smc911x
flash_nfs=run bootargs_nfs; nand read ${loadaddr} 0x300000 0x200000; bootm
flash_self=run ramargs addip addtty addmtd addmisc;bootm
${kernel_addr} ${ramdisk_addr}
hostname="mx35pdk"
ipaddr=192.168.1.10
kernel_addr_r=80800000
load=tftp ${loadaddr} ${u-boot}
loadaddr=0x80800000
net_nfs=tftp ${load_addr} ${bootfile}; run bootargs_nfs; bootm ${load_addr}
net_self_load=tftp ${kernel_addr_r} ${bootfile};tftp ${ramdisk_addr_r}
${ramdisk_file};
netdev=eth0
nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath}
ramargs=setenv bootargs root=/dev/ram rw
ramdisk_file="mx35pdk"/uRamdisk
rootpath=/opt/eldk-5.2.1/armv6/rootfs-qte-sdk
serverip=192.168.1.1
stderr=serial
stdin=serial
stdout=serial
u-boot="mx35pdk"/u-boot.bin
uboot_addr=0xa0000000
upd=if run load;then echo Updating u-boot;if run update;then echo
U-Boot updated;else echo Error updating u-boot !;echo Board without
bootloader !!;fi;else echo U-Boot not downloaded..exiting;fi
update=protect off ${uboot_addr} +40000;erase ${uboot_addr}
+40000;cp.b ${loadaddr} ${uboot_addr} ${filesize}
Doing changes to the environment is not possible, the command
"saveenv" ends up with an endless loop of the following message:
MX35 U-Boot > saveenv
Saving Environment to Flash...
Protect off A00A0000 ... A00BFFFF
Un-Protecting sectors 5..5 in bank 1
fwc addr a00a0000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
. done
Un-Protected 1 sectors
Protect off A0080000 ... A009FFFF
Un-Protecting sectors 4..4 in bank 1
fwc addr a0080000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
. done
Un-Protected 1 sectors
EXPORT table = 87fe94c4, htab.size = 521, htab.filled = 36, size = 131067
Unsorted: n=36
0: 87e90704 ==> ramargs => setenv bootargs root=/dev/ram rw
1: 87e90854 ==> net_nfs => tftp ${load_addr} ${bootfile};
run bootargs_nfs; bootm ${load_addr}
2: 87e90950 ==> nfsargs => setenv bootargs root=/dev/nfs
rw nfsroot=${serverip}:${rootpath}
3: 87e909d4 ==> flash_nfs => run bootargs_nfs; nand read
${loadaddr} 0x300000 0x200000; bootm
4: 87e90a34 ==> addip_dyn => setenv bootargs ${bootargs} ip=dhcp
5: 87e90a70 ==> addmisc => setenv bootargs ${bootargs} ${misc}
6: 87e90b24 ==> ethprime => smc911x
7: 87e90cec ==> ethaddr => 00:04:9f:01:2f:9a
8: 87e90e00 ==> stdin => serial
9: 87e90e60 ==> baudrate => 115200
10: 87e90f44 ==> addip => if test -n ${ipdyn};then run
addip_dyn;else run addip_sta;fi
11: 87e90fa4 ==> serverip => 192.168.1.1
12: 87e91028 ==> addip_sta => setenv bootargs ${bootargs}
ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
panic=1
13: 87e91040 ==> upd => if run load;then echo Updating
u-boot;if run update;then echo U-Boot updated;else echo Error updating
u-boot !;echo Board without bootloader !!;fi;else echo U-Boot not
downloaded..exiting;fi
14: 87e91058 ==> ethact => smc911x-0
15: 87e910dc ==> bootcmd => run net_nfs
16: 87e910f4 ==> update => protect off ${uboot_addr}
+40000;erase ${uboot_addr} +40000;cp.b ${loadaddr} ${uboot_addr}
${filesize}
17: 87e91118 ==> kernel_addr_r => 80800000
18: 87e912bc ==> bootfile => /3stack/uImage
19: 87e91340 ==> stderr => serial
20: 87e913d0 ==> net_self_load => tftp ${kernel_addr_r}
${bootfile};tftp ${ramdisk_addr_r} ${ramdisk_file};
21: 87e914fc ==> loadaddr => 0x80800000
22: 87e915d4 ==> load => tftp ${loadaddr} ${u-boot}
23: 87e915e0 ==> bootdelay => 3
24: 87e91664 ==> rootpath => /opt/eldk-5.2.1/armv6/rootfs-qte-sdk
25: 87e9173c ==> flash_self => run ramargs addip addtty
addmtd addmisc;bootm ${kernel_addr} ${ramdisk_addr}
26: 87e91850 ==> stdout => serial
27: 87e91898 ==> addmtd => setenv bootargs ${bootargs} ${mtdparts}
28: 87e918f8 ==> ramdisk_file => "mx35pdk"/uRamdisk
29: 87e91928 ==> hostname => "mx35pdk"
30: 87e91ad8 ==> addtty => setenv bootargs ${bootargs}
console=ttymxc0,${baudrate}
31: 87e91af0 ==> u-boot => "mx35pdk"/u-boot.bin
32: 87e91e68 ==> ipaddr => 192.168.1.10
33: 87e91eec ==> bootargs_nfs => setenv bootargs
console=ttymxc0,${baudrate} root=/dev/nfs ip=${ipaddr} rw
nfsroot=${serverip}:${rootpath}
34: 87e91ef8 ==> uboot_addr => 0xa0000000
35: 87e91f34 ==> netdev => eth0
Erasing Flash... A0080000 ... A009FFFF ...Erase Flash from 0xa0080000
to 0xa009ffff in Bank # 1
fwc addr a0080aaa cmd aa 00aa 16bit x 16 bit
fwc addr a0080554 cmd 55 0055 16bit x 16 bit
fwc addr a0080aaa cmd 80 0080 16bit x 16 bit
fwc addr a0080aaa cmd aa 00aa 16bit x 16 bit
fwc addr a0080554 cmd 55 0055 16bit x 16 bit
fwc addr a0080000 cmd 30 0030 16bit x 16 bit
flash_is_busy: 1
flash_is_busy: 1
flash_is_busy: 1
...
Could you please give me some hits what to do next?
With best regards
Michael Hornung
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