As it stands, the memory node in the u8540 Device Tree is ignored and
memory is actually stipulated by the bootloader via ATAGS. ARM core
architecture code then extracts the memory ATAG and inserts it into the
Device Tree. In the u8540 the LittleKernel bootloader only stipulates
512MB of memory; however, the u8540 actually has 2GB. We're taking the
responsibility to register the remainder from Device Tree here.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
After some discussion and deliberation we have decided to only use the
short form of the PRCMU register names i.e. not mention the peripheral
in which the registers reside.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch prepares the use of '#define' into dts files.
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Devices in board DTS files are usually searchable by multiple
compatible strings. In this case the 8540 based SoC should be
obtainable via the chipset [DB8540 & AB8540] name 'u8540' or
the board name 'ccu8540'. It's already possible to obtain the
Device Tree via its chipset name, this patch makes it possible
to get it by its board name too.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The PRCMU's Tightly Coupled Data Memory on the DB8540 platform is
8kB larger than it's predecessor's. We need to reflect that in its
Device Tree. By re-specifying the address and size of the device
we effectively over-ride the previous values with more accurate
ones.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This is a skeleton DTS file which only enables serial. Just using
this simple file yields a terminal when booting u8540.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
