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linux-sg2042/arch/arm
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Chaithrika U S 17eb157041 davinci: use 32-bit accesses for low-level debug macros 
This patch defines debug macros for low-level debugging for Davinci
based platforms

Tested on :
        - DM644x DaVinci EVM
        - DM646X DaVinciHD EVM
	- DM355 EVM

This patch attempts to solve the low-level debug issue in DM646x. The
UART on DM646x SoC allows only 32-bit access. The existing
debug-macro.S uses the macros from debug-8250.S file. This led to
garbage serial out in the case of DM646x.

The inclusion of debug-8250.S does not allow for run time fix for this
issue.  There are compile time errors due to multiple definitions of
the macros.  Also when building a single image for multiple DaVinci
Platforms, the ifdefs cannot be relied upon.

The solution below does not include the debug-8250.S file and defines
the necessary macros. This solution was arrived at after observing
that word access does not affect the low-level debug messages on
DM644x/DM355.

The other approach to this issue is to use the UART module information
available in the peripheral registers to decide the access
mechanism. But this will have to be done for every access of UART
specifically for DM646x. Also this calls for a modification of the
debug-8250.S file.

Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
 		2009-05-26 07:18:14 -07:00
..
boot arm: allow usage of string functions in linux/string.h 2009-03-31 13:05:36 +10:30
common [ARM] smp: fix cpumask usage in ARM SMP code 2009-05-17 16:22:46 +01:00
configs Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 2009-05-05 09:22:26 +01:00
include/asm [ARM] smp: fix cpumask usage in ARM SMP code 2009-05-17 16:22:46 +01:00
kernel [ARM] smp: fix cpumask usage in ARM SMP code 2009-05-17 16:22:46 +01:00
lib Merge branch 'clps7500' into devel 2008-11-27 12:39:43 +00:00
mach-aaec2000 [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-at91 clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
mach-clps711x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-davinci davinci: use 32-bit accesses for low-level debug macros 2009-05-26 07:18:14 -07:00
mach-ebsa110 [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-ep93xx [ARM] 5509/1: ep93xx: clkdev enable UARTS 2009-05-16 19:55:56 +01:00
mach-footbridge [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-gemini [ARM] arch_reset() now takes a second parameter 2009-03-30 10:40:12 +01:00
mach-h720x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-imx Merge master.kernel.org:/home/rmk/linux-2.6-arm 2009-04-24 08:36:41 -07:00
mach-integrator [ARM] 5517/1: integrator: don't put clock lookups in __initdata 2009-05-18 17:43:16 +01:00
mach-iop13xx dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) 2009-04-07 08:31:10 -07:00
mach-iop32x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-iop33x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-ixp4xx Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-05-10 10:46:45 -07:00
mach-ixp23xx [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-ixp2000 [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-kirkwood [ARM] 5460/1: Orion: reduce namespace pollution 2009-04-23 23:25:41 +01:00
mach-ks8695 Merge branch 'highmem' into devel 2009-03-24 22:47:45 +00:00
mach-l7200 [ARM] mach-l7200: fix spelling of SYS_CLOCK_OFF 2009-05-18 11:25:08 +01:00
mach-lh7a40x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-loki [ARM] 5460/1: Orion: reduce namespace pollution 2009-04-23 23:25:41 +01:00
mach-mmp [ARM] arch_reset() now takes a second parameter 2009-03-30 10:40:12 +01:00
mach-msm clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
mach-mv78xx0 [ARM] 5460/1: Orion: reduce namespace pollution 2009-04-23 23:25:41 +01:00
mach-mx1 MX1ADS: remove I2C ifdefs 2009-04-16 12:57:15 +02:00
mach-mx2 imx21: activate i2c 2009-04-16 12:57:13 +02:00
mach-mx3 mx31ads: Mark as having full regulatoion constraints with 1133-EV1 board 2009-04-16 13:03:56 +02:00
mach-netx clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
mach-ns9xxx clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
mach-omap1 Merge branch 'omap-clock-fixes' into omap-fixes 2009-04-24 09:56:16 -07:00
mach-omap2 ARM: OMAP2/3: Change omapfb to use clkdev for dispc and rfbi, v2 2009-05-16 08:28:17 -07:00
mach-orion5x [ARM] 5460/1: Orion: reduce namespace pollution 2009-04-23 23:25:41 +01:00
mach-pnx4008 [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-pxa [ARM] 5513/1: Eurotech VIPER SBC: fix compilation error 2009-05-16 19:55:56 +01:00
mach-realview [ARM] realview: fix broadcast tick support 2009-05-17 17:11:35 +01:00
mach-rpc [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-s3c24a0/include/mach [ARM] S3C: Make IRQ_EINT sleep control common 2009-03-08 12:35:36 +00:00
mach-s3c2400 [ARM] remove a common set of __virt_to_bus definitions 2008-11-28 15:36:49 +00:00
mach-s3c2410 [ARM] S3C2410: mach-bast.c registering i2c data too early 2009-05-15 15:13:25 +01:00
mach-s3c2412 [ARM] S3C2412: Add missing cache flush in suspend code 2009-05-01 12:28:16 +01:00
mach-s3c2440 [ARM] Osiris: Fix double initialisation in machine block 2009-04-17 12:42:24 +01:00
mach-s3c2442 [ARM] Arrange for platforms to select appropriate CPU support 2008-11-27 12:38:00 +00:00
mach-s3c2443 S3C24XX: Move and update IIS headers 2009-03-05 12:00:59 +00:00
mach-s3c6400 [ARM] S3C64XX: Add S3C64XX_PA_IIS{0,1} to <mach/map.h> 2009-05-01 12:28:16 +01:00
mach-s3c6410 [ARM] SMDK6410: Request GPIOs for LCD power control 2009-04-15 14:46:03 +01:00
mach-sa1100 [ARM] lart: fix build error 2009-04-26 13:56:01 +01:00
mach-shark [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-versatile [ARM] 5518/1: versatile: don't put clock lookups in __initdata 2009-05-18 17:43:06 +01:00
mach-w90x900 [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mm Merge master.kernel.org:/home/rmk/linux-2.6-arm 2009-05-02 16:40:20 -07:00
nwfpe [ARM] nwfpe: fix 'floatx80_is_nan' sparse warning 2009-05-15 12:49:14 +01:00
oprofile Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2009-03-28 14:03:14 -07:00
plat-iop dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
plat-mxc mx27ads: move PBC mapping out of vmalloc space 2009-05-05 09:37:08 +02:00
plat-omap ARM: OMAP3: Fix number of GPIO lines for 34xx 2009-05-16 08:28:16 -07:00
plat-orion Merge master.kernel.org:/home/rmk/linux-2.6-arm 2009-04-24 08:36:41 -07:00
plat-pxa [ARM] pxa: fix issue of muxed GPIO irq_chip functions touching non-muxed GPIOs 2009-04-27 11:45:16 +08:00
plat-s3c [ARM] S3C: Do not set clk->owner field if unset 2009-05-15 15:21:57 +01:00
plat-s3c24xx [ARM] S3C24XX: Fix unused code warning in arch/arm/plat-s3c24xx/dma.c 2009-05-15 15:13:24 +01:00
plat-s3c64xx [ARM] S3C64XX: fix GPIO debug 2009-05-15 15:13:18 +01:00
tools [ARM] update mach-types 2009-03-23 16:12:37 -04:00
vfp [ARM] 5440/1: Fix VFP state corruption due to preemption during VFP exceptions 2009-04-01 22:17:50 +01:00
Kconfig [ARM] Double check memmap is actually valid with a memmap has unexpected holes V2 2009-05-18 11:22:24 +01:00
Kconfig-nommu
…
Kconfig.debug [ARM] 5412/1: XSCALE: add ice dcc support 2009-02-27 20:57:46 +00:00
Makefile Merge branch 'for-rmk' of git://gitorious.org/linux-gemini/mainline into devel 2009-03-26 23:10:11 +00:00