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| author | Stephen Warren <swarren@wwwdotorg.org> | 2012-12-27 14:29:05 -0700 |
|---|---|---|
| committer | Stephen Warren <swarren@wwwdotorg.org> | 2013-01-14 21:47:08 -0700 |
| commit | 6520700fdb2cc07ed86e893a2e88c491e04d6b75 (patch) | |
| tree | 818bbbef02da05bf4b0ef34997716dbc1314d128 /arch/arm/boot/dts/bcm2835-rpi-b.dts | |
| parent | 9931faca02c604c22335f5a935a501bb2ace6e20 (diff) | |
| download | blackbird-op-linux-6520700fdb2cc07ed86e893a2e88c491e04d6b75.tar.gz blackbird-op-linux-6520700fdb2cc07ed86e893a2e88c491e04d6b75.zip | |
ARM: bcm2835 rpi: remove hard-coded memreserve from DT
The Raspberry Pi has either 256MB or 512MB of RAM. However, a portion is
reserved for use by the VideoCore co-processor. The RPi DT contained a
/memreserve/ statement to reserve that RAM. However, the exact amount of
RAM used by the VideoCore is dynamic at boot-time; a firmware config
file specifies the amount. As such, we can't hard-code the size in the
DT. Remove the /memreserve/ statement. The bootloader is expected to
adjust the /memory properties to reflect the RAM size the ARM CPU can
use. Upstream U-Boot certainly does this, although I'm not sure that the
basic firmware does if it boots the kernel directly; users may need to
manually adjust their DT if not using U-Boot.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Diffstat (limited to 'arch/arm/boot/dts/bcm2835-rpi-b.dts')
| -rw-r--r-- | arch/arm/boot/dts/bcm2835-rpi-b.dts | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts index 9b72054a0bc0..6ff26f99cacd 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts @@ -1,5 +1,4 @@ /dts-v1/; -/memreserve/ 0x0c000000 0x04000000; /include/ "bcm2835.dtsi" / { |
