Hello.
On 25-08-2011 12:33, Simon Schwarz wrote:
Adds a Readme for the savebp command
Signed-off-by: Simon Schwarzsimonschwarzcor@gmail.com
[...]
diff --git a/doc/README.commands.savebp b/doc/README.commands.savebp new file mode 100644 index 0000000..dc05ee0 --- /dev/null +++ b/doc/README.commands.savebp @@ -0,0 +1,28 @@ +The savebp (=save boot parameters) is used to save a boot parameter image to +non-volatile memory.
+To execute the command everything has to be in place as if bootm should be +used. +(kernel image, initrd-image, fdt-image etc.)
+Call is: +savebp [ftd|atags] [nand_offset] [kernel_addr] [initrd_addr] [fdt_addr]
+Only the first parameter [ftd|atags] is mandatory if the others are left blank +standard values are used.
+e.g: +savebp fdt 0x680000 0x82000000 0x80000100 - +savebo atags
+typical call on OMAP3: +nandecc hw +nand read 0x82000000 0x280000 0x400000 /* Read kernel image from NAND */ +tftpboot 0x80000100 devkit8000.dtb /* Read fdt */ +savebp fdt 0x680000 0x82000000 0x80000100 - /* Save the image */
+------------Behind the scene--------------- +Atm the implementation is that we have /common/cmd_savebp.c which implements
Only ATM.
+the command tself and the subcommand calls to bootm.
s/tself/itself/
+Then the arch specific implementation of do_save_atags or do_savebp_fdt +in /arch/arm/lib is called.
WBR, Sergei