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authorstroese2003-04-04 09:53:41 -0600
committerstroese2003-04-04 09:53:41 -0600
commitc1551ea817c0a094b3e5c9573e5dcf4ca8204de6 (patch)
treec5a7cba09e016920d928a5cc34512a11f1ce18ee /README
parent0587597ca333f9a5877af7a7d272d5fb5d8070cc (diff)
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U-Boot version environment variable "ver" added (CONFIG_VERSION_VARIABLE).
Diffstat (limited to 'README')
-rw-r--r--README22
1 files changed, 18 insertions, 4 deletions
diff --git a/README b/README
index 40dec968bf..17687795b1 100644
--- a/README
+++ b/README
@@ -620,6 +620,13 @@ The following options need to be configured:
620 SIU Watchdog feature is enabled in the SYPCR 620 SIU Watchdog feature is enabled in the SYPCR
621 register. 621 register.
622 622
623- U-Boot Version:
624 CONFIG_VERSION_VARIABLE
625 If this variable is defined, an environment variable
626 named "ver" is created by U-Boot showing the U-Boot
627 version as printed by the "version" command.
628 This variable is readonly.
629
623- Real-Time Clock: 630- Real-Time Clock:
624 631
625 When CFG_CMD_DATE is selected, the type of the RTC 632 When CFG_CMD_DATE is selected, the type of the RTC
@@ -733,7 +740,7 @@ The following options need to be configured:
733 16,7 Mill (24bit) 315 318 31b 740 16,7 Mill (24bit) 315 318 31b
734 (i.e. setenv videomode 317; saveenv; reset;) 741 (i.e. setenv videomode 317; saveenv; reset;)
735 742
736 CONFIG_VIDEO_SED13806 743 CONFIG_VIDEO_SED13806
737 Enable Epson SED13806 driver. This driver supports 8bpp 744 Enable Epson SED13806 driver. This driver supports 8bpp
738 and 16bpp modes defined by CONFIG_VIDEO_SED13806_8BPP 745 and 16bpp modes defined by CONFIG_VIDEO_SED13806_8BPP
739 or CONFIG_VIDEO_SED13806_16BPP 746 or CONFIG_VIDEO_SED13806_16BPP
@@ -1973,6 +1980,13 @@ the board). U-Boot refuses to delete or overwrite these variables
1973once they have been set once. 1980once they have been set once.
1974 1981
1975 1982
1983Further special Environment Variables:
1984
1985 ver - Contains the U-Boot version string as printed
1986 with the "version" command. This variable is
1987 readonly (see CONFIG_VERSION_VARIABLE).
1988
1989
1976Please note that changes to some configuration parameters may take 1990Please note that changes to some configuration parameters may take
1977only effect after the next boot (yes, that's just like Windoze :-). 1991only effect after the next boot (yes, that's just like Windoze :-).
1978 1992
@@ -2381,18 +2395,18 @@ U-Boot supports the following image types:
2381 to boot over the network using BOOTP etc., where the boot 2395 to boot over the network using BOOTP etc., where the boot
2382 server provides just a single image file, but you want to get 2396 server provides just a single image file, but you want to get
2383 for instance an OS kernel and a RAMDisk image. 2397 for instance an OS kernel and a RAMDisk image.
2384 2398
2385 "Multi-File Images" start with a list of image sizes, each 2399 "Multi-File Images" start with a list of image sizes, each
2386 image size (in bytes) specified by an "uint32_t" in network 2400 image size (in bytes) specified by an "uint32_t" in network
2387 byte order. This list is terminated by an "(uint32_t)0". 2401 byte order. This list is terminated by an "(uint32_t)0".
2388 Immediately after the terminating 0 follow the images, one by 2402 Immediately after the terminating 0 follow the images, one by
2389 one, all aligned on "uint32_t" boundaries (size rounded up to 2403 one, all aligned on "uint32_t" boundaries (size rounded up to
2390 a multiple of 4 bytes). 2404 a multiple of 4 bytes).
2391 2405
2392 "Firmware Images" are binary images containing firmware (like 2406 "Firmware Images" are binary images containing firmware (like
2393 U-Boot or FPGA images) which usually will be programmed to 2407 U-Boot or FPGA images) which usually will be programmed to
2394 flash memory. 2408 flash memory.
2395 2409
2396 "Script files" are command sequences that will be executed by 2410 "Script files" are command sequences that will be executed by
2397 U-Boot's command interpreter; this feature is especially 2411 U-Boot's command interpreter; this feature is especially
2398 useful when you configure U-Boot to use a real shell (hush) 2412 useful when you configure U-Boot to use a real shell (hush)