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-Kernel initialisation parameters on ARM Linux
----------------------------------------------
-
-The following document describes the kernel initialisation parameter
-structure, otherwise known as 'struct param_struct' which is used
-for most ARM Linux architectures.
-
-This structure is used to pass initialisation parameters from the
-kernel loader to the Linux kernel proper, and may be short lived
-through the kernel initialisation process.  As a general rule, it
-should not be referenced outside of arch/arm/kernel/setup.c:setup_arch().
-
-There are a lot of parameters listed in there, and they are described
-below:
-
- page_size
-
-   This parameter must be set to the page size of the machine, and
-   will be checked by the kernel.
-
- nr_pages
-
-   This is the total number of pages of memory in the system.  If
-   the memory is banked, then this should contain the total number
-   of pages in the system.
-
-   If the system contains separate VRAM, this value should not
-   include this information.
-
- ramdisk_size
-
-   This is now obsolete, and should not be used.
-
- flags
-
-   Various kernel flags, including:
-    bit 0 - 1 = mount root read only
-    bit 1 - unused
-    bit 2 - 0 = load ramdisk
-    bit 3 - 0 = prompt for ramdisk
-
- rootdev
-
-   major/minor number pair of device to mount as the root filesystem.
-
- video_num_cols
- video_num_rows
-
-   These two together describe the character size of the dummy console,
-   or VGA console character size.  They should not be used for any other
-   purpose.
-
-   It's generally a good idea to set these to be either standard VGA, or
-   the equivalent character size of your fbcon display.  This then allows
-   all the bootup messages to be displayed correctly.
-
- video_x
- video_y
-
-   This describes the character position of cursor on VGA console, and
-   is otherwise unused. (should not be used for other console types, and
-   should not be used for other purposes).
-
- memc_control_reg
-
-   MEMC chip control register for Acorn Archimedes and Acorn A5000
-   based machines.  May be used differently by different architectures.
-
- sounddefault
-
-   Default sound setting on Acorn machines.  May be used differently by
-   different architectures.
-
- adfsdrives
-
-   Number of ADFS/MFM disks.  May be used differently by different
-   architectures.
-
- bytes_per_char_h
- bytes_per_char_v
-
-   These are now obsolete, and should not be used.
-
- pages_in_bank[4]
-
-   Number of pages in each bank of the systems memory (used for RiscPC).
-   This is intended to be used on systems where the physical memory
-   is non-contiguous from the processors point of view.
-
- pages_in_vram
-
-   Number of pages in VRAM (used on Acorn RiscPC).  This value may also
-   be used by loaders if the size of the video RAM can't be obtained
-   from the hardware.
-
- initrd_start
- initrd_size
-
-   This describes the kernel virtual start address and size of the
-   initial ramdisk.
-
- rd_start
-
-   Start address in sectors of the ramdisk image on a floppy disk.
-
- system_rev
-
-   system revision number.
-
- system_serial_low
- system_serial_high
-
-   system 64-bit serial number
-
- mem_fclk_21285
-
-   The speed of the external oscillator to the 21285 (footbridge),
-   which control's the speed of the memory bus, timer & serial port.
-   Depending upon the speed of the cpu its value can be between
-   0-66 MHz. If no params are passed or a value of zero is passed,
-   then a value of 50 Mhz is the default on 21285 architectures.
-
- paths[8][128]
-
-   These are now obsolete, and should not be used.
-
- commandline
-
-   Kernel command line parameters.  Details can be found elsewhere.