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If we don't provide the .map_io() callback, the LL debug
defines will kick in anyway, so delete the UART debug map
as well.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20221121221015.1454948-1-linus.walleij@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The IXP4xx is just using the device tree now, only keep the
static UART map if and only if we are debugging.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Various spelling mistakes in comments.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220318103729.157574-26-Julia.Lawall@inria.fr
Link: https://lore.kernel.org/r/20220826112153.438829-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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UART1, UART2 and the expansion bus config registers
are the only registers mapped in a fixed location
when using device tree.
For device tree we also want to get rid of the custom
<mach/io.h> for IXP4xx. So we need to undefine
CONFIG_NEED_MACH_IO_H. Doing that activates the fixed
mapping of the PCI IO space to PCI_IO_VIRT_BASE which
is hardcoded to 0xFEE00000 and this would collide with
the old fixed mappings.
Move the fixed virtual IO base address from 0xFEF00000
to 0xFEC00000 in order to avoid the collision.
For the OF-only boot path let's even cut the reliance
on <mach/io.h> and just hardcode the one single virtbase
we need apart from the UART, which is hardcoded in
Kconfig.debug.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khalasa@piap.pl>
Cc: Zoltan HERPAI <wigyori@uid0.hu>
Cc: Raylynn Knight <rayknight@me.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This adds a minimal support for booting IXP4xx systems
from device tree.
We have to add hacks to the QMGR, NPE and notably also
ethernet and watchdog drivers so that they don't crash
the platform: these drivers are unconditionally starting
to grab regions of statically remapped IO space with no
concern of the device model or other platforms.
We will go in and properly fix these drivers as we go
along but for now this hack gets us to a place where we
can start working on proper device tree support for these
platforms.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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