The following changes are based on kernel UCC ethernet performance:
1. Make the CSB bus pipeline depth as 4, and enable the repeat mode
2. Optimize transactions between QE and CSB. Added CFG_SPCR_OPT
switch to enable this setting.
The following changes are based on the App Note AN3369 and
verified to improve memory latency using LMbench:
3. CS0_CONFIG[AP_n_EN] is changed from 1 to 0
4. CS0_CONFIG[ODT_WR_CONFIG] set to 1. Was a reserved setting
previously.
5. TIMING_CFG_1[WRREC] is changed from 3clks to 2clks (based on
Twr=15ns, and this was already the setting in DDR_MODE)
6. TIMING_CFG_1[PRETOACT] is changed from 3clks to 2clks. (based on
Trp=15ns)
7. TIMING_CFG_1[ACTTOPRE] is changed from 9clks to 6clks. (based on
Tras=40ns)
8. TIMING_CFG_1[ACTTORW] is changed from 3clks to 2clks. (based on
Trcd=15ns)
9. TIMING_CFG_1[REFREC] changed from 21 clks to 11clks. (based on
Trfc=75ns)
10. TIMING_CFG_2[FOUR_ACT] is changed from 10 clks to 7clks. (based
on Tfaw=50ns)
11. TIMING_CFG_2[ADD_LAT] and DDR_MODE[AL] changed from 0 to 1 (based
on CL=3 and WL=2).
Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Use available shift/mask macros to define DDR configuration.
Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Update the MPC8349E-mITX, MPC8313E-RDB, and MPC837XE-RDB board files to upload
the Vitesse VSC7385 firmware. Changed CONFIG_VSC7385 to CONFIG_VSC7385_ENET.
Cleaned up the board header files to make selecting the VSC7385 easier to
control.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
The Vitesse VSC7385 is a 5-port switch found on the Freescale MPC8349E-mITX
and other boards. A small firwmare must be uploaded to its on-board memory
before it can be enabled. This patch adds the code which uploads firmware
(but not the firmware itself).
Previously, this feature was provided by a U-Boot application that was
made available only on Freescale BSPs. The VSC7385 firmware must still
be obtained separately, but at least there is no longer a need for a separate
application.
Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-by: Ben Warren <biggerbadderben@gmail.com>
These defines embedded the u-boot env variables and/or the bd_t structure
in the fdt blob. The conclusion of discussion on the u-boot email list
was that embedding these in the fdt blob is not useful: there are better
ways of passing the data (in fact, the fdt blob itself replaces the
bd_t struct).
The only board that enables these is the stxxtc and they don't appear
to be used by linux.
Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Flex-OneNAND is a monolithic integrated circuit with a NAND Flash array
using a NOR Flash interface. This on-chip integration enables system designers
to reduce external system logic and use high-density NAND Flash
in applications that would otherwise have to use more NOR components.
Flex-OneNAND enables users to configure to partition it into SLC and MLC areas
in more flexible way. While MLC area of Flex-OneNAND can be used to store data
that require low reliability and high density, SLC area of Flex-OneNAND
to store data that need high reliability and high performance. Flex-OneNAND
can let users take advantage of storing these two different types of data
into one chip, which is making Flex-OneNAND more cost- and space-effective.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Include FEC specific nodes in ft_cpu_setup only if CONFIG_MPC5xxx_FEC is
defined. Systems without FEC, i.e. no FEC node in DTB, should be possible.
Signed-off-by: Andre Schwarz <andre.schwarz@matrix-vision.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
AX88796L is device of NE2000 compatible.
This patch support AX88796L ethernet device.
Signed-off-by: Yusuke Goda <goda.yusuke@renesas.com>
Acked-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
There are more devices of the NE2000 base.
A present code is difficult for us to support more devices.
To support more NE2000 clone devices, separated the function.
Signed-off-by: Yusuke Goda <goda.yusuke@renesas.com>
Acked-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
The Blackfin on-chip MAC driver was being managed in the BF537-STAMP board
directory, but it is not board specific, so relocate it to the drivers dir
so that other Blackfin ports can utilize it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Since the "ssync" instruction may have hardware anomalies associated with
it, have the smc91111 driver use the SSYNC macro rather than invoking it
directly. We workaround all the anomalies via this macro.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
For historical reasons we limited the stack to 256M because some boards
could only map that much via BATS. However newer boards are capable of
mapping more memory (for example 85xx is capble of doing up to 2G).
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Add a simple expr style command that will set an env variable as the result
of the command. This allows us to do simple math in shell. The following
operations are supported: &, |, ^, +, -, *, /.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Add setup_c0_status from Linux. For the moment we disable interrupts, set
CU0, mark the kernel mode, and clear ERL and EXL. This is good enough for
reset-time configuration and will work well across most processors.
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
Without this change, we'll be suffering from deffered WATCH exception
once Status.EXL is cleared. Make sure Cause.WP is cleared.
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
We do Hit_Writeback_Inv_D and Hit_Invalidate_I. You might think that you
don't need to do Hit_Invalidate_I, but flush_cache() needs it since this
function is used not only in U-Boot specfic programs but also at loading
target binaries.
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
Currently we do 1) Index_Store_Tag_I, 2) Fill and 3) Index_Store_Tag_I
again per a loop for I-cache initialization. But according to 'See MIPS
Run', we're encouraged to use three separate loops rather than combining
them *for both I- and D-cache*. This patch tries to fix this.
In accordance with fixing above, mips_init_[id]cache are separated from
mips_cache_reset(), and rewrite cache loops are completely rewritten with
useful macros.
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
This patch replaces the current function definitions with NESTED, LEAF
and END macro. They specify some more additional information about the
function; an alignment of symbol, type of symbol, stack frame usage, etc.
These information explicitly tells the assembler and the debugger about
the types of code we want to generate.
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
The initial intension of having mips_cache_lock() was to use the cache
as memory for temporary stack use so that a C environment can be set up
as early as possible.
But now mips_cache_lock() follow lowlevel_init(). We've already have the
real memory initilaized at this point, therefore we could/should use it.
No reason to lock at all.
Other problems:
Cache locking is not consistent across MIPS implementaions. Some imple-
mentations don't support locking at all. The style of locking varies -
some support per line locking, others per way, etc. Some parts use bits
in status registers instead of cache ops. Current mips_cache_lock() is
not necessarily general-purpose.
And this is worthy of special mention; once U-Boot/MIPS locks the lines,
they are never get unlocked, so the code relies on whatever gets loaded
after U-Boot to re-initialize the cache and clear the locks. We're sup-
posed to have CFG_INIT_RAM_LOCK and unlock_ram_in_cache() implemented,
but leave the situation as it is for a long time.
For these reasons, I proposed the removal of mips_cache_lock() from the
global start-up code.
This patch adds CFG_INIT_RAM_LOCK_MIPS to make existing users aware that
*things have changed*. If he wants the same behavior as before, he needs
to have CFG_INIT_RAM_LOCK_MIPS in his config file.
If we don't have any regression report through several releases, then
we'll remove codes entirely.
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
Acked-by: Andrew Dyer <amdyer@gmail.com>
If the LWMON5 config has SYSMON POST among CONFIG_POSTs which may be
run on the board, then the SYSMON POST controls the display backlight
(doesn't switch backlight ON if POST FAILED, and does switch the
backlight ON if PASSED).
If not, then the video driver controls the display backlight (just
switch ON the backlight upon initialization).
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
In current source code, when the device number of PCI is 0, process PCI
bridge without fail. However, when the device number is 0, it is not PCI
always bridge. There are times when device of PCI allocates.
When CONFIG_PCI_SKIP_HOST_BRIDGE is enable, this problem is solved when
use this patch.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Stefan Roese <sr@denx.de>
