Commit 6225c5db authored by wdenk's avatar wdenk
Browse files

* Patch by Sam Song, 11 October 2004:

  - Add RESET/PREBOOT/AUTOBOOT support for RPXlite_DW board
  - Adjust CPU:BUS frequency ratio 1:1 when core frequency
    less than 50MHz

* Patch by Sam Song, 10 Oct 2004:
  Fix a parameter error in run_command() in main.c
parent 8ed96046
......@@ -2,7 +2,15 @@
Changes for U-Boot 1.1.3:
======================================================================
* Patches by Richard Woodruff, 01 Oct 2004:
* Patch by Sam Song, 11 October 2004:
- Add RESET/PREBOOT/AUTOBOOT support for RPXlite_DW board
- Adjust CPU:BUS frequency ratio 1:1 when core frequency
less than 50MHz
* Patch by Sam Song, 10 Oct 2004:
Fix a parameter error in run_command() in main.c
* Patch by Richard Woodruff, 01 Oct 2004:
add support for the TI OMAP2420 processor and its H4 reference
board
......
......@@ -2,11 +2,11 @@
After following the step of Yoo. Jonghoon and Wolfgang Denk,
I ported u-boot on RPXlite DW version board: RPXlite_DW or LITE_DW.
There are three differences between the Yoo-ported RPXlite and the RPXlite_DW.
There are at least three differences between the Yoo-ported RPXlite and the RPXlite_DW.
Board(in U-BOOT) version(in EmbeddedPlanet) CPU SDRAM FLASH
Board(in U-Boot) version(in EmbeddedPlanet) CPU SDRAM FLASH
RPXlite RPXlite CW 850 16MB 4MB
RPXlite_DW RPXlite DW 823e 64MB 16MB
RPXlite_DW RPXlite DW(EP 823 H1 DW) 823e 64MB 16MB
This fireware is specially coded for EmbeddedPlanet Co. Software Development
Platform(RPXlite DW),which has a NEC NL6448BC20-08 LCD panel.
......@@ -17,6 +17,7 @@ It has the following three features:
The default setting is 48MHz.To get a 64MHz u-boot,just add
'64' in make command,like
make distclean
make RPXlite_DW_64_config
make all
......@@ -28,19 +29,21 @@ didn't use EEPROM for ENV is that PlanetCore V2.0 use EEPROM as environment para
home.Because of the possibility of using two firewares on this board,I didn't
'disturb' EEPROM.To get NVRAM support,you may use the following build command:
make distclean
make RPXlite_DW_NVRAM_config
make all
3. LCD panel support
To support the Platform better,I added LCD panel(NL6448BC20-08) function.But bewear of
the fact that once you build this support and program it to FLASH,you should make sure
you put workable kernel and ramdisk at the right place in FLASH or through NFS.
Otherwise, you must erase this fireware manually via BDI2000 or ICE tools.So this
function is used for deployment and demo only.Pls look before you leap.
To support the Platform better,I added LCD panel(NL6448BC20-08) function.
For the convenience of debug, CONFIG_PERBOOT was supported. So you just
perss ENTER if you want to get a serial console in boot downcounting.
Then you can switch to LCD and serial console freely just typing
'run lcd' or 'run ser'. They are only vaild when CONFIG_LCD was enabled.
To get a LCD support u-boot,you can do the following:
make distclean
make RPXlite_DW_LCD_config
make all
......@@ -68,7 +71,7 @@ make RPXlite_DW_64_LCD_config
The boot process by "make RPXlite_DW_config" could be:
U-Boot 1.1.1 (Jun 8 2004 - 11:16:30)
U-Boot 1.1.2 (Aug 29 2004 - 15:11:27)
CPU: PPC823EZTnnB2 at 48 MHz: 16 kB I-Cache 8 kB D-Cache
Board: RPXlite_DW
......@@ -84,6 +87,68 @@ u-boot>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A word on the U-Boot enviroment variable setting and usage :
In the beginning, you could just need very simple defult environment variable setting,
like[include/configs/RPXlite.h] :
#define CONFIG_BOOTCOMMAND \
"bootp; " \
"setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) " \
"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off; " \
"bootm"
This is enough for kernel NFS test. But as debug process goes on, you would expect
to save some time on environment variable setting and u-boot/kernel updating.
So the default environment variable setting would become more complicated. Just like
the one I did in include/configs/RPXlite_DW.h.
Two u-boot commands, ku and uu, should be careful to use. They were designed to update
kernel and u-boot image file respectively. You must tftp your image to default address
'100000' and then use them correctly. Yeah, you can create your own command to do this
job. :-) The example u-boot image updating process could be :
u-boot>t 100000 RPXlite_DW_LCD.bin
Using SCC ETHERNET device
TFTP from server 172.16.115.6; our IP address is 172.16.115.7
Filename 'RPXlite_DW_LCD.bin'.
Load address: 0x100000
Loading: #############################
done
Bytes transferred = 144700 (2353c hex)
u-boot>run uu
Un-Protect Flash Sectors 0-4 in Bank # 1
Erase Flash Sectors 0-4 in Bank # 1
.... done
Copy to Flash... done
ff000000: 27051956 552d426f 6f742031 2e312e32 '..VU-Boot 1.1.2
ff000010: 20284175 67203239 20323030 34202d20 (Aug 29 2004 -
ff000020: 31353a32 303a3238 29000000 00000000 15:20:28).......
ff000030: 00000000 00000000 00000000 00000000 ................
ff000040: 00000000 00000000 00000000 00000000 ................
ff000050: 00000000 00000000 00000000 00000000 ................
ff000060: 00000000 00000000 00000000 00000000 ................
ff000070: 00000000 00000000 00000000 00000000 ................
ff000080: 00000000 00000000 00000000 00000000 ................
ff000090: 00000000 00000000 00000000 00000000 ................
ff0000a0: 00000000 00000000 00000000 00000000 ................
ff0000b0: 00000000 00000000 00000000 00000000 ................
ff0000c0: 00000000 00000000 00000000 00000000 ................
ff0000d0: 00000000 00000000 00000000 00000000 ................
ff0000e0: 00000000 00000000 00000000 00000000 ................
ff0000f0: 00000000 00000000 00000000 00000000 ................
u-boot updating finished
u-boot>
Also for environment updating, 'run eu' could let you erase OLD default environment variable
and then use the working u-boot environment setting.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Finally, if you want to keep the serial port to possible debug on spot for deployment, you
just need to enable 'DEPLOYMENT' in RPXlite_DW.h as 'DEBUG' does. Only the special string
defined by CONFIG_AUTOBOOT_STOP_STR like 'st' can stop the autoboot.
I'd like to extend my heartfelt gratitute to kind people for helping me work it out.
I would particually thank Wolfgang Denk for his nice help.
......@@ -93,4 +158,4 @@ Sam Song, samsongshu@yahoo.com.cn
Institute of Electrical Machinery and Controls
Shanghai University
June 8,2004
Oct. 11, 2004
......@@ -432,7 +432,7 @@ void main_loop (void)
s = getenv("menucmd");
if (s) {
# ifndef CFG_HUSH_PARSER
run_command (s, bd, 0);
run_command (s, 0);
# else
parse_string_outer(s, FLAG_PARSE_SEMICOLON |
FLAG_EXIT_FROM_LOOP);
......
......@@ -45,6 +45,7 @@
*/
/* #define DEBUG 1 */
/* #ifdef DEPLOYMENT 1 */
#undef CONFIG_MPC860
#define CONFIG_MPC823 1 /* This is a MPC823e CPU. */
......@@ -59,19 +60,31 @@
#undef CONFIG_8xx_CONS_NONE
#define CONFIG_BAUDRATE 9600 /* console default baudrate = 9600bps */
#ifdef CONFIG_LCD
#define CONFIG_BOOTDELAY 12 /* autoboot after 12 seconds */
#ifdef DEBUG
#define CONFIG_BOOTDELAY -1 /* autoboot disabled */
#else
#define CONFIG_BOOTDELAY -1 /* autoboot disabled */
#define CONFIG_BOOTDELAY 6 /* autoboot after 6 seconds */
#ifdef DEPLOYMENT
#define CONFIG_BOOT_RETRY_TIME -1
#define CONFIG_AUTOBOOT_KEYED
#define CONFIG_AUTOBOOT_PROMPT "autoboot in %d seconds (stop with 'st')...\n"
#define CONFIG_AUTOBOOT_STOP_STR "st"
#define CONFIG_ZERO_BOOTDELAY_CHECK
#define CONFIG_RESET_TO_RETRY 1
#define CONFIG_BOOT_RETRY_MIN 1
#endif
#endif
/* pre-boot commands */
#define CONFIG_PREBOOT "setenv stdout serial;setenv stdin serial"
#undef CONFIG_BOOTARGS
#define CONFIG_EXTRA_ENV_SETTINGS \
"netdev=eth0\0" \
"nfsargs=setenv bootargs console=ttyS0,9600 root=/dev/nfs rw " \
"nfsroot=$(serverip):$(rootpath)\0" \
"ramargs=setenv bootargs console=tty0 console=ttyS0,9600 " \
"root=/dev/ram rw\0" \
"nfsargs=setenv bootargs console=tty0 console=ttyS0,9600 " \
"root=/dev/nfs rw nfsroot=$(serverip):$(rootpath)\0" \
"ramargs=setenv bootargs console=tty0 root=/dev/ram rw\0" \
"addip=setenv bootargs $(bootargs) " \
"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask)" \
":$(hostname):$(netdev):off panic=1\0" \
......@@ -82,9 +95,25 @@
"net_nfs=tftp 200000 $(bootfile);run nfsargs addip;bootm\0" \
"gatewayip=172.16.115.254\0" \
"netmask=255.255.255.0\0" \
<<<<<<< RPXlite_DW.h
"kernel_addr=ff040000\0" \
"ramdisk_addr=ff200000\0" \
"ku=era $(kernel_addr) ff1fffff;cp.b 100000 $(kernel_addr) " \
"$(filesize);md $(kernel_addr);" \
"echo kernel updating finished\0" \
"uu=protect off 1:0-4;era 1:0-4;cp.b 100000 ff000000 " \
"$(filesize);md ff000000;" \
"echo u-boot updating finished\0" \
"eu=protect off 1:6;era 1:6;reset\0" \
"lcd=setenv stdout lcd;setenv stdin lcd\0" \
"ser=setenv stdout serial;setenv stdin serial\0" \
"verify=no"
=======
"kernel_addr=ff080000\0" \
"ramdisk_addr=ff200000\0" \
""
>>>>>>> 1.3
#define CONFIG_BOOTCOMMAND "run flash_self"
#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
......@@ -178,8 +207,13 @@
#define CFG_ENV_SIZE 0x8000 /* Total Size of Environment Sector */
#endif
<<<<<<< RPXlite_DW.h
#define CFG_RESET_ADDRESS ((ulong)((((immap_t *)CFG_IMMR)->im_clkrst.res)))
=======
#define CFG_RESET_ADDRESS ((ulong)((((immap_t *)CFG_IMMR)->im_clkrst.res)))
>>>>>>> 1.3
/*-----------------------------------------------------------------------
* Cache Configuration
*/
......@@ -254,10 +288,16 @@
/* Up to 48MHz system clock, we use 1:1 SYSTEM/BUS ratio */
#if defined(RPXlite_64MHz)
#define CFG_SCCR ( SCCR_TBS | SCCR_EBDF01 ) /* %%%SCCR:0x02020000 */
<<<<<<< RPXlite_DW.h
#else
#define CFG_SCCR ( SCCR_TBS | SCCR_EBDF00 ) /* %%%SCCR:0x02000000 */
#endif
=======
#else
#define CFG_SCCR ( SCCR_TBS | SCCR_EBDF00 ) /* %%%SCCR:0x02000000 */
#endif
>>>>>>> 1.3
/*-----------------------------------------------------------------------
* PCMCIA stuff
*-----------------------------------------------------------------------
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment