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authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-16 12:21:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-16 12:21:41 -0700
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Merge tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull rst conversion of docs from Mauro Carvalho Chehab: "As agreed with Jon, I'm sending this big series directly to you, c/c him, as this series required a special care, in order to avoid conflicts with other trees" * tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (77 commits) docs: kbuild: fix build with pdf and fix some minor issues docs: block: fix pdf output docs: arm: fix a breakage with pdf output docs: don't use nested tables docs: gpio: add sysfs interface to the admin-guide docs: locking: add it to the main index docs: add some directories to the main documentation index docs: add SPDX tags to new index files docs: add a memory-devices subdir to driver-api docs: phy: place documentation under driver-api docs: serial: move it to the driver-api docs: driver-api: add remaining converted dirs to it docs: driver-api: add xilinx driver API documentation docs: driver-api: add a series of orphaned documents docs: admin-guide: add a series of orphaned documents docs: cgroup-v1: add it to the admin-guide book docs: aoe: add it to the driver-api book docs: add some documentation dirs to the driver-api book docs: driver-model: move it to the driver-api book docs: lp855x-driver.rst: add it to the driver-api book ...
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+======
+Brutus
+======
+
+Brutus is an evaluation platform for the SA1100 manufactured by Intel.
+For more details, see:
+
+http://developer.intel.com
+
+To compile for Brutus, you must issue the following commands::
+
+ make brutus_config
+ make config
+ [accept all the defaults]
+ make zImage
+
+The resulting kernel will end up in linux/arch/arm/boot/zImage. This file
+must be loaded at 0xc0008000 in Brutus's memory and execution started at
+0xc0008000 as well with the value of registers r0 = 0 and r1 = 16 upon
+entry.
+
+But prior to execute the kernel, a ramdisk image must also be loaded in
+memory. Use memory address 0xd8000000 for this. Note that the file
+containing the (compressed) ramdisk image must not exceed 4 MB.
+
+Typically, you'll need angelboot to load the kernel.
+The following angelboot.opt file should be used::
+
+ base 0xc0008000
+ entry 0xc0008000
+ r0 0x00000000
+ r1 0x00000010
+ device /dev/ttyS0
+ options "9600 8N1"
+ baud 115200
+ otherfile ramdisk_img.gz
+ otherbase 0xd8000000
+
+Then load the kernel and ramdisk with::
+
+ angelboot -f angelboot.opt zImage
+
+The first Brutus serial port (assumed to be linked to /dev/ttyS0 on your
+host PC) is used by angel to load the kernel and ramdisk image. The serial
+console is provided through the second Brutus serial port. To access it,
+you may use minicom configured with /dev/ttyS1, 9600 baud, 8N1, no flow
+control.
+
+Currently supported
+===================
+
+ - RS232 serial ports
+ - audio output
+ - LCD screen
+ - keyboard
+
+The actual Brutus support may not be complete without extra patches.
+If such patches exist, they should be found from
+ftp.netwinder.org/users/n/nico.
+
+A full PCMCIA support is still missing, although it's possible to hack
+some drivers in order to drive already inserted cards at boot time with
+little modifications.
+
+Any contribution is welcome.
+
+Please send patches to nico@fluxnic.net
+
+Have Fun !