Rob Herring e5c5f2adeb ARM: implement debug_ll_io_init() ... When using DEBUG_LL, the UART's (or other HW's) registers are mapped into early page tables based on the results of assembly macro addruart. Later, when the page tables are replaced, the same virtual address must remain valid. Historically, this has been ensured by using defines from <mach/iomap.h> in both the implementation of addruart, and the machine's .map_io() function. However, with the move to single zImage, we wish to remove <mach/iomap.h>. To enable this, the macro addruart may be used when constructing the late page tables too; addruart is exposed as a C function debug_ll_addr(), and used to set up the required mapping in debug_ll_io_init(), which may called on an opt-in basis from a machine's .map_io() function. Signed-off-by: Rob Herring <rob.herring@calxeda.com> [swarren: Mask map.virtual with PAGE_MASK. Checked for NULL results from debug_ll_addr (e.g. when selected UART isn't valid). Fixed compile when either !CONFIG_DEBUG_LL or CONFIG_DEBUG_SEMIHOSTING.] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>		2012-11-05 09:35:59 -08:00
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asm	ARM: implement debug_ll_io_init()	2012-11-05 09:35:59 -08:00
debug	ARM: socfpga: Fix socfpga compilation with early_printk() enabled	2012-10-25 16:52:53 +02:00
uapi/asm	UAPI: (Scripted) Disintegrate arch/arm/include/asm	2012-10-12 13:05:52 +01:00