Commit graph

7 commits

Author SHA1 Message Date
Simon Glass
41e98e011d dm: rpi: Convert GPIO driver to driver model
Convert the BCM2835 GPIO driver to use driver model, and switch over
Raspberry Pi to use this, since it is the only board.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
2014-10-22 10:36:57 -06:00
Jeroen Hofstee
5dfd162eea board: rpi_b: include mmc header and fix prototype
While at it add fdt_support.h as well.

cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-07-18 17:53:24 -04:00
Stephen Warren
f66f2aa265 ARM: rpi_b: power on SDHCI and USB HW modules
Send RPC commands to the VideoCore to turn on the SDHCI and USB modules.
For SDHCI this isn't needed in practice, since the firmware already
turned on the power in order to load U-Boot. However, it's best to be
explicit. For USB, this is necessary, since the module isn't powered
otherwise. This will allow the kernel USB driver to work.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2014-01-20 17:11:39 -05:00
Stephen Warren
ea697ae7eb ARM: bcm2835: add simplefb DT node during bootz/m
Add a DT simple-framebuffer node to DT when booting the Linux kernel.
This will allow the kernel to inherit the framebuffer configuration from
U-Boot, and display a graphical boot console, and even run a full SW-
rendered X server.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Simon Glass <sjg@chromium.org>
2013-06-05 22:40:38 +02:00
Stephen Warren
131a1e603b ARM: rpi_b: enable SD controller, add related env/cmds
Enable the SD controller driver for the Raspberry Pi. Enable a number
of useful MMC, partition, and filesystem-related commands. Set up the
environment to provide standard locations for loading a kernel, DTB,
etc. Provide a boot command that loads and executes boot.scr.uimg from
the SD card; this is written considering future extensibilty to USB
storage.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2013-03-20 15:32:16 +01:00
Stephen Warren
3f397782ae ARM: rpi_b: use bcm2835 mbox driver to get memory size
The firmware running on the bcm2835 SoC's VideoCore CPU determines how
much of the system RAM is available for use by the ARM CPU. Previously,
U-Boot assumed that only 128MB was available, since this was the
smallest value configured by any public firmware. However, we can now
query the actual value at run-time from the firmware using the mbox
property protocol.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2013-03-20 15:29:29 +01:00
Stephen Warren
0d04f34a35 ARM: add Raspberry Pi model B board, using BCM2835 SoC
The Raspberry Pi model B uses the BCM2835 SoC, has 256MB of RAM,
contains an SMSC 9512 USB LAN/Hub chip, and various IO connectors.
For more details, see http://www.raspberrypi.org/.

Various portions (cache enable, MACH_TYPE setup, RAM size limit, stack
relocation to top of RAM) extracted from work by:
Oleksandr Tymoshenko <gonzo@bluezbox.com>.

GPIO driver enablement by Vikram Narayanan <vikram186@gmail.com>.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Tom Rini <trini@ti.com>
2012-09-01 14:58:21 +02:00