u-boot.git/cpu/arm_cortexa8/omap3, branch v2010.03 Unnamed repository; edit this file 'description' to name the repository. OMAP3: workaround for ARM Cortex-A8 erratum 725233 2010-03-07T18:36:35+00:00 Siarhei Siamashka siarhei.siamashka@gmail.com 2010-02-24T04:56:36+00:00 041d42e789aba20296ffcde92173f100a9592880 725233: PLD instructions executed with PLD data forwarding enabled can result in a processor deadlock This deadlock can happen when NEON load instructions are used together with cache preload instructions (PLD). The problematic conditions can be triggered in-the-wild by NEON optimized functions from pixman library (http://cgit.freedesktop.org/pixman), which perform dynamic adjustment of prefetch distance. The workaround disables PLD data forwarding by setting PLD_FWD bit in L2 Cache Auxiliary Control Register as recommended in ARM Cortex-A8 errata list. The deadlock can only happen on r1pX revisions of Cortex-A8 (used in OMAP34xx/OMAP35xx). Performance impact of the workaround is practically non-existant. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> 
725233: PLD instructions executed with PLD data forwarding
enabled can result in a processor deadlock

This deadlock can happen when NEON load instructions are used together
with cache preload instructions (PLD). The problematic conditions
can be triggered in-the-wild by NEON optimized functions from pixman
library (http://cgit.freedesktop.org/pixman), which perform dynamic
adjustment of prefetch distance.

The workaround disables PLD data forwarding by setting PLD_FWD bit
in L2 Cache Auxiliary Control Register as recommended in ARM Cortex-A8
errata list.

The deadlock can only happen on r1pX revisions of Cortex-A8 (used in
OMAP34xx/OMAP35xx). Performance impact of the workaround is practically
non-existant.

Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
OMAP3: Avoid re-write to PRM_CLKSRC_CTRL 2010-02-12T18:31:54+00:00 Sanjeev Premi premi@ti.com 2010-02-08T16:33:25+00:00 b74064a0e2984a166e3575852f3697ef5595a97b In function get_osc_clk_speed(), do not change/ update the divider for SYS_CLK as it can has cascading effect on the other derived clocks. Sudden change in divider value can lead to inconsistent behavior in the system - often leading to crashes. The problem was found when working with OMAP3EVM using DM3730 processor card. The patch has been tested with OMAP3530 on OMAP3EVM as well Signed-off-by: Sanjeev Premi <premi@ti.com> Signed-off-by: Hiremath Vaibhav <hvaibhav@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> 
In function get_osc_clk_speed(), do not change/ update
the divider for SYS_CLK as it can has cascading effect
on the other derived clocks.

Sudden change in divider value can lead to inconsistent
behavior in the system - often leading to crashes.

The problem was found when working with OMAP3EVM using
DM3730 processor card.

The patch has been tested with OMAP3530 on OMAP3EVM as
well

Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Hiremath Vaibhav <hvaibhav@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Merge branch 'master' into next 2009-12-07T21:47:17+00:00 Wolfgang Denk wd@denx.de 2009-12-07T21:47:17+00:00 206c00f26f56af02686cb69bfe5c75e979063171 Conflicts: lib_generic/zlib.c Signed-off-by: Wolfgang Denk <wd@denx.de> 
Conflicts:
	lib_generic/zlib.c

Signed-off-by: Wolfgang Denk <wd@denx.de>
help: Correct syntax of nandecc help output. 2009-12-07T21:06:51+00:00 Robert P. J. Day rpjday@crashcourse.ca 2009-11-17T12:30:23+00:00 a93c92cddaedd5f0720e0da15c6664f7a688b582 "nandecc" help output should not reproduce the command name, nor have a trailing newline. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> 
"nandecc" help output should not reproduce the command name, nor have
a trailing newline.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Generic udelay() with watchdog support 2009-12-05T00:08:53+00:00 Ingo van Lil inguin@gmx.de 2009-11-24T13:09:21+00:00 3eb90bad651fab39cffba750ec4421a9c01d60e7 According to the PPC reference implementation the udelay() function is responsible for resetting the watchdog timer as frequently as needed. Most other architectures do not meet that requirement, so long-running operations might result in a watchdog reset. This patch adds a generic udelay() function which takes care of resetting the watchdog before calling an architecture-specific __udelay(). Signed-off-by: Ingo van Lil <inguin@gmx.de> 
According to the PPC reference implementation the udelay() function is
responsible for resetting the watchdog timer as frequently as needed.
Most other architectures do not meet that requirement, so long-running
operations might result in a watchdog reset.

This patch adds a generic udelay() function which takes care of
resetting the watchdog before calling an architecture-specific
__udelay().

Signed-off-by: Ingo van Lil <inguin@gmx.de>
OMAP3: Fix SDRC init 2009-11-27T22:26:17+00:00 Nishanth Menon nm@ti.com 2009-11-09T14:29:34+00:00 d414aae552bc229dafcad92028effb4a8306c7a5 Defaults are for Infineon DDR timings. Since none of the supported boards currently do XIP boot, these seem to be faulty. fix the values as per the calculations(ACTIMA,B), conf the sdrc power with pwdnen and wakeupproc bits Signed-off-by: Nishanth Menon <nm@ti.com> 
Defaults are for Infineon DDR timings.
Since none of the supported boards currently do
XIP boot, these seem to be faulty. fix the values
as per the calculations(ACTIMA,B), conf
the sdrc power with pwdnen and wakeupproc bits

Signed-off-by: Nishanth Menon <nm@ti.com>
OMAP3:SDRC: Cleanup references to SDP 2009-11-27T22:26:16+00:00 Nishanth Menon nm@ti.com 2009-11-07T15:40:47+00:00 169a4c804dbaf11facb041b1333d394c6ceb8d68 Remove SDP referenced unused defines Signed-off-by: Nishanth Menon <nm@ti.com> 
Remove SDP referenced unused defines

Signed-off-by: Nishanth Menon <nm@ti.com>
TI OMAP3: make gpmc_config as const 2009-10-24T14:55:24+00:00 Nishanth Menon nm@ti.com 2009-10-13T16:49:55+00:00 f8a812aa656bc34622303a26fa5003d19c34aeed gpmc_config should not be a variant as it is board specific hence make it a const parameter Fixes issues identified by Dirk: - build issue for zoom2 - warnings for all other OMAP3 platforms using nand/onenand etc Signed-off-by: Nishanth Menon <nm@ti.com> 
gpmc_config should not be a variant as it is board specific
hence make it a const parameter

Fixes issues identified by Dirk:
- build issue for zoom2
- warnings for all other OMAP3 platforms using nand/onenand etc

Signed-off-by: Nishanth Menon <nm@ti.com>
OMAP3: fix warnings when NAND/ONENAND is not used 2009-10-18T21:52:54+00:00 Nishanth Menon nm@ti.com 2009-10-13T16:47:39+00:00 4e0539d2696992a5e32643a0c831e870cfe9a036 Fix build warnings by putting specific used variables under required #ifdefs for removing: mem.c:227: warning: unused variable 'f_sec' mem.c:226: warning: unused variable 'f_off' mem.c:225: warning: unused variable 'size' mem.c:224: warning: unused variable 'base' mem.c:222: warning: unused variable 'gpmc_config' Signed-off-by: Nishanth Menon <nm@ti.com> 
Fix build warnings by putting specific used variables
under required #ifdefs for removing:
mem.c:227: warning: unused variable 'f_sec'
mem.c:226: warning: unused variable 'f_off'
mem.c:225: warning: unused variable 'size'
mem.c:224: warning: unused variable 'base'
mem.c:222: warning: unused variable 'gpmc_config'

Signed-off-by: Nishanth Menon <nm@ti.com>
TI: OMAP3: Remove SZ_xx references 2009-10-18T21:52:52+00:00 Sandeep Paulraj s-paulraj@ti.com 2009-09-09T15:50:40+00:00 9c44ddccb6602f620fc037974f3e4468ad8a7c0c This patch removes dependency on the sizes.h header file and removes all references to SZ_xx. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> 
This patch removes dependency on the sizes.h header file
and removes all references to SZ_xx.

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>