Shaveta Leekha [Wed, 28 May 2014 08:48:55 +0000 (14:18 +0530)]
powerpc/serdes: Add the workaround for erratum A-007186
SerDes PLL is calibrated at reset. When the junction temperature
delta from the time the PLL is calibrated exceeds +56C/-66C,
jitter may increase and can cause PLL to unlock.
This workaround overwrite the SerDes registers with new values,
to calibrate SerDes registers.
These values are known to work fine for all temperature ranges.
This workaround is valid for B4, T4 and T2 platforms, so
added in their config.
Signed-off-by: Shaveta Leekha <shaveta@freescale.com> Signed-off-by: Poonam Aggrwal <Poonam.Aggrwal@freescale.com>
[York Sun: replaced typedef ccsr_sfp_regs_t with struct ccsr_sfp_regs] Reviewed-by: York Sun <yorksun@freescale.com>
York Sun [Fri, 23 May 2014 20:15:00 +0000 (13:15 -0700)]
powerpc/mpc85xx: Add workaround for DDR erratum A004508
When the DDR controller is initialized below a junction temperature of
0°C and then operated above a junction temperature of 65°C, the DDR
controller may cause receive data errors, resulting ECC errors and/or
corrupted data. This erratum applies to the following SoCs and their
variants: MPC8536, MPC8569, MPC8572, P1010, P1020, P1021, P1022, P1023,
P2020.
Chunhe Lan [Tue, 20 May 2014 05:34:28 +0000 (13:34 +0800)]
powerpc/t4rdb: Add alternate serdes protocols to align with A-007186
A-007186: SerDes PLL is calibrated at reset. It is possible
for jitter to increase and cause the PLL to unlock when the
temperature delta from the time the PLL is calibrated exceeds
+56C/-66C when using X VDD of 1.35 V (or +70C/-80C when using
XnVDD of 1.5 V). No issues are seen with LC VCO. The protocols
only using Ring VCOs are impacted.
Workaround:
For all 1.25/2.5/5 GHz protocols, use LC VCO instead of Ring
VCO, this need to use alternate serdes protocols. Alternate
option has the same functionality as the original option; the
only difference being LC VCO rather than Ring VCO.
Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Shaohui Xie [Fri, 16 May 2014 02:52:33 +0000 (10:52 +0800)]
powerpc/t4qds: Add alternate serdes protocols to align with A-007186
A-007186: SerDes PLL is calibrated at reset. It is possible for jitter to
increase and cause the PLL to unlock when the temperature delta from the
time the PLL is calibrated exceeds +56C/-66C when using X VDD of 1.35 V
(or +70C/-80C when using XnVDD of 1.5 V). No issues are seen with LC
VCO. Only the protocols using Ring VCOs are impacted.
Workaround:
For all 1.25/2.5/5 GHz protocols, use LC VCO instead of Ring VCO, this need
to use alternate serdes protocols. The alternate option has the same
functionality as the original option; the only difference being LC VCO
rather than Ring VCO.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Shengzhou Liu [Thu, 15 May 2014 11:24:11 +0000 (19:24 +0800)]
board/t208x: update t2080qds/t2080rdb for errata A-007186
As errata A-007186, we need to use the alternate serdes
protocol instead of those impacted protocols.
- add support for serdes protocols: 0x1b, 0x50, 0x5e,
0x64, 0x6a, 0xd2, 0x67, 0x70.
- update t2080_rcw.cfg to adapt to new rcw_66_15 for
t2080qds and t2080rdb.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Simon Glass [Fri, 11 Apr 2014 02:01:35 +0000 (20:01 -0600)]
main: Make the execution path a little clearer in main.c
bootdelay_process() never returns in some circumstances, whichs makes the
control flow confusing. Change it so that the decision about how to execute
the boot command is made in the main_loop() code, so it is easier to follow.
Move CLI stuff to cli.c.
Simon Glass [Fri, 11 Apr 2014 02:01:32 +0000 (20:01 -0600)]
m68k: powerpc: Clean up do_mdm_init
This code seems unnecessarily complex. We really just need to check the
global_data. Now that is it all in one place, and not arch-specific, this
is pretty easy.
Heiko Schocher [Thu, 22 May 2014 10:43:05 +0000 (12:43 +0200)]
dm: rename device struct to udevice
using UBI and DM together leads in compiler error, as
both define a "struct device", so rename "struct device"
in include/dm/device.h to "struct udevice", as we use
linux code (MTD/UBI/UBIFS some USB code,...) and cannot
change the linux "struct device"
Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Marek Vasut <marex@denx.de>
Andreas Bießmann [Mon, 19 May 2014 12:23:39 +0000 (14:23 +0200)]
mkimage: add atmelimage
The new atmelimage converts a machine code BLOB to bootable ROM image. Atmel
ROM has no sophisticated image format, it only checks the first 7 ARM vectors.
The vectors can contain valid B or LDR opcodes, the 6'th vector contains the
image size to load.
Additionally the PMECC header can be written by the atmelimage target. The
parameters must be given via the -n switch as a coma separated list. For
example:
A provided image can be checked for correct header setup. It prints out the
PMECC header parameters if it has one and the 6'th interrupt vector content.
Bo Shen [Thu, 24 Apr 2014 03:42:16 +0000 (11:42 +0800)]
ARM: atmel: at91sam9x5ek: convert to generic board
Enable CONFIG_SYS_GENERIC_BOARD, so that we get rid of the following
warning on boot:
"Warning: Your board does not use generic board. Please read
doc/README.generic-board and take action. Boards not
upgraded by the late 2014 may break or be removed."
Signed-off-by: Bo Shen <voice.shen@atmel.com> Tested-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Bo Shen [Thu, 24 Apr 2014 03:42:15 +0000 (11:42 +0800)]
ARM: atmel: at91sam9m10g45ek: convert to generic board
Enable CONFIG_SYS_GENERIC_BOARD, so that we get rid of the following
warning on boot:
"Warning: Your board does not use generic board. Please read
doc/README.generic-board and take action. Boards not
upgraded by the late 2014 may break or be removed."
Signed-off-by: Bo Shen <voice.shen@atmel.com> Tested-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Bo Shen [Thu, 24 Apr 2014 03:42:14 +0000 (11:42 +0800)]
ARM: atmel: sama5d3_xplained: convert to generic board
Enable CONFIG_SYS_GENERIC_BOARD, so that we get rid of the following
warning on boot:
"Warning: Your board does not use generic board. Please read
doc/README.generic-board and take action. Boards not
upgraded by the late 2014 may break or be removed."
Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Bo Shen [Thu, 24 Apr 2014 03:42:13 +0000 (11:42 +0800)]
ARM: atmel: sama5d3xek: convert to generic board
Enable CONFIG_SYS_GENERIC_BOARD, so that we get rid of the following
warning on boot:
"Warning: Your board does not use generic board. Please read
doc/README.generic-board and take action. Boards not
upgraded by the late 2014 may break or be removed."
Signed-off-by: Bo Shen <voice.shen@atmel.com> Tested-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Bo Shen [Wed, 19 Mar 2014 06:48:44 +0000 (14:48 +0800)]
ARM: atmel: switch to main crystal osc for SPL boot
If without switch to main crystal oscillator, the sama5d3 SoC will
use internal on chip RC oscillator.
In order to get better accuracy, switch to main crystal oscillator.
Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Ian Campbell [Wed, 14 May 2014 18:30:29 +0000 (19:30 +0100)]
net/designware: reorder struct dw_eth_dev to pack more efficiently.
On Thu, 2014-05-08 at 22:26 +0100, Ian Campbell wrote:
> The {r,t}xbuffs fields also need to be aligned. Previously this was done
> implicitly because they immediately followed the descriptor tables. Make this
> explicit and also move to the head of the struct.
Looks like I managed to not actually commit the move of the field to the
head of the struct! v3.1 follows....
Ian.
8<------------
>From 2937ba01841887317f6792709ed57cb86b5fc0cd Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Thu, 1 May 2014 19:45:15 +0100
Subject: [PATCH] net/designware: reorder struct dw_eth_dev to pack more
efficiently.
The {tx,rx}_mac_descrtable fields are aligned to ARCH_DMA_MINALIGN, which could
be 256 or even larger. That means there is a potentially huge hole in the
struct before those fields, so move them to the front where they are better
packed.
Moving them to the front also helps ensure that so long as dw_eth_dev is
properly aligned (which it is since "net/designware: ensure device private data
is DMA aligned.") the {tx,rx}_mac_descrtable will be too, or at least avoids
having to worry too much about compiler specifics.
The {r,t}xbuffs fields also need to be aligned. Previously this was done
implicitly because they immediately followed the descriptor tables. Make this
explicit and also move to the head of the struct.
Ian Campbell [Thu, 8 May 2014 21:26:33 +0000 (22:26 +0100)]
net/designware: ensure cache invalidations are aligned to ARCH_DMA_MINALIGN
This is required at least on ARM.
When sending instead of simply invalidating the entire descriptor, flush
as little as possible while still respecting ARCH_DMA_MINALIGN, as
requested by Alexey.
Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: Alexey Brodkin <abrodkin@synopsys.com>
Ian Campbell [Thu, 8 May 2014 21:26:32 +0000 (22:26 +0100)]
net/designware: ensure device private data is DMA aligned.
struct dw_eth_dev contains fields which are accessed via DMA, so make sure it
is aligned to a dma boundary. Without this I see:
ERROR: v7_dcache_inval_range - start address is not aligned - 0x7fb677e0
Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com> Acked-by: Marek Vasut <marex@denx.de>
Ian Campbell [Mon, 5 May 2014 10:52:30 +0000 (11:52 +0100)]
sunxi: non-FEL SPL boot support for sun7i
Add support for booting from an MMC card.
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Henrik Nordström <henrik@henriknordstrom.net> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Marek Vasut <marex@denx.de> Cc: Tom Cubie <Mr.hipboi@gmail.com> Reviewed-by: Tom Rini <trini@ti.com>
Ian Campbell [Mon, 5 May 2014 13:42:31 +0000 (14:42 +0100)]
sunxi: mmc support
On Mon, 2014-05-05 at 14:18 +0200, Stefan Roese wrote:
> > + case 1:
> > +#if CONFIG_MMC1_PG
> Are you sure that this is correct and shouldn't be:
>
> +#ifdef CONFIG_MMC1_PG
>
> ?
It's "correct" in so far as it works (the boards.cfg config stuff
#defines things to 1), but I think you are right that it isn't the
preferred style. But...
> A quick scan through this patch series shows that this define
> is not set at all. Perhaps its outdated? Or is it used to support
> some other sunxi SoC? Not sure, perhaps it should be removed for
> now.
...I had thought that it was to support some other board which wasn't
being upstreamed right now, so eventually useful and harmless for now,
but I've just checked and it isn't actually used by any of the boards in
u-boot-sunxi.git. So rather than fix it to use #ifdef lets drop it.
Rather than resend the entire series, here is v5.1 of this patch.
> Other than this please add my:
>
> Reviewed-by: Stefan Roese <sr@denx.de>
Thanks!
8<---------------------------------
>From 20704e35a41664de5f516ed0e02981ac06085102 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Fri, 7 Mar 2014 04:29:39 +0000
Subject: [PATCH v5.1 7/8] sunxi: mmc support
This adds support for the MMC controller on the Allwinner A20 (sun7i)
processor.
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net> Signed-off-by: Luke Leighton <lkcl@lkcl.net> Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Wills Wang <wills.wang.open@gmail.com> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Stefan Roese <sr@denx.de> Cc: Tom Cubie <Mr.hipboi@gmail.com> Cc: Aaron Maoye <leafy.myeh@allwinnertech.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> Reviewed-by: Tom Rini <trini@ti.com>
Ian Campbell [Mon, 5 May 2014 10:52:27 +0000 (11:52 +0100)]
sunxi: add support for Cubietruck booting in FEL mode
Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Jens Kuske <jenskuske@gmail.com> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Tom Rini <trini@ti.com> Reviewed-by: Marek Vasut <marex@denx.de>
Ian Campbell [Mon, 5 May 2014 10:52:26 +0000 (11:52 +0100)]
sunxi: add sun7i cpu, board and start of day support
This patch adds generic board, start of day and basic build system support for
the Allwinner A20 (sun7i) processor. This code will not been compiled until the
build is hooked up in a later patch. It has been split out to keep the patches
manageable.
Signed-off-by: Adam Sampson <ats@offog.org> Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com> Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Emilio López <emilio@elopez.com.ar> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net> Signed-off-by: Jens Kuske <jenskuske@gmail.com> Signed-off-by: Luc Verhaegen <libv@skynet.be> Signed-off-by: Luke Leighton <lkcl@lkcl.net> Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Patrick Wood <patrickhwood@gmail.com> Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Wills Wang <wills.wang.open@gmail.com> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Marek Vasut <marex@denx.de> Cc: Tom Cubie <Mr.hipboi@gmail.com> Reviewed-by: Tom Rini <trini@ti.com>
Ian Campbell [Mon, 5 May 2014 10:52:25 +0000 (11:52 +0100)]
sunxi: add sun7i dram setup support
This patch adds DRAM initialisation support for the Allwinner A20 (sun7i)
processor. This code will not been compiled until the build is hooked up in a
later patch. It has been split out to keep the patches manageable.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Signed-off-by: Emilio López <emilio@elopez.com.ar> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net> Signed-off-by: Jens Kuske <jenskuske@gmail.com> Signed-off-by: Luke Leighton <lkcl@lkcl.net> Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Marek Vasut <marex@denx.de> Cc: Tom Cubie <Mr.hipboi@gmail.com> Reviewed-by: Tom Rini <trini@ti.com>
Ian Campbell [Mon, 5 May 2014 10:52:24 +0000 (11:52 +0100)]
sunxi: add sun7i pinmux and gpio support
This patch adds the basic pinmux and gpio support for the Allwinner A20 (sun7i)
processor. This code will not been compiled until the build is hooked up in a
later patch. It has been split out to keep the patches manageable.
Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Ma Haijun <mahaijuns@gmail.com> Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Henrik Nordström <henrik@henriknordstrom.net> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Tom Rini <trini@ti.com> Acked-by: Marek Vasut <marex@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: Tom Cubie <Mr.hipboi@gmail.com> Reviewed-by: Tom Rini <trini@ti.com>
Ian Campbell [Mon, 5 May 2014 10:52:23 +0000 (11:52 +0100)]
sunxi: add sun7i clocks and timer support.
This patch adds the basic clocks and timer support for the Allwinner A20
(sun7i) processor. This code will not been compiled until the build is hooked
up in a later patch. It has been split out to keep the patches manageable.
Some of the code here is common to multiple sunxi subarchtectures, hence files
are named sun4i which is the earliest similar variant.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Emilio López <emilio@elopez.com.ar> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net> Signed-off-by: Jens Kuske <jenskuske@gmail.com> Signed-off-by: Luke Leighton <lkcl@lkcl.net> Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: Stefan Roese <sr@denx.de> Cc: Tom Cubie <Mr.hipboi@gmail.com> Reviewed-by: Tom Rini <trini@ti.com>
Stefan Agner [Wed, 23 Apr 2014 16:17:51 +0000 (18:17 +0200)]
arm: vf610: add DDR_SEL_PAD_CONTR register
Set DDR_SEL_PAD_CONTR register explicitly to DDR3 which solves RAM
issues with newer silicon (1.1). This register was added in revision
4 of the Vybrid Reference Manual.
Michael Walle [Tue, 1 Apr 2014 18:09:14 +0000 (20:09 +0200)]
lsxl: rework boot scripts
Move addresses for kernel, ramdisk and fdt blob to own variables. Add dtb
blob loading to all existing boot scripts, dtb filenames were taken from
vanilla kernel. Introduce new boot script bootcmd_legacy, which only loads
a kernel and a ramdisk. Make this the default boot script. This should also
restore the behaviour of the original bootloader.
Cc: Prafulla Wadaskar <prafulla@marvell.com> Cc: Tom Rini <trini@ti.com> Signed-off-by: Michael Walle <michael@walle.cc>
Lokesh Vutla [Mon, 12 May 2014 08:19:33 +0000 (13:49 +0530)]
ARM: OMAP: Fix omap_sdram_size calculation
Last section of DMM is used for trapping tiler unmapped sections.
Corresponding trap_size should be deducted from total SDRAM size
only if trap section is overlapping with available SDRAM
based on DMM sections. Fixing the same.
Heiko Schocher [Wed, 14 May 2014 10:40:27 +0000 (12:40 +0200)]
arm, am33xx: Enable CONFIG_SYS_GENERIC_BOARD for siemens boards
Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Tom Rini <trini@ti.com> Cc: Samuel Egli <samuel.egli@siemens.com> Cc: Roger Meier <r.meier@siemens.com> Tested-by: Samuel Egli <samuel.egli@siemens.com>
Ash Charles [Wed, 14 May 2014 15:34:34 +0000 (08:34 -0700)]
omap4: duovero: Add Gumstix DuoVero machine.
This adds the Gumstix DuoVero machine [1]. This is a OMAP4430-based
computer-on-module (COM aka SOM) that can be mounted on various
expansion boards with different peripherals.
Signed-off-by: Ash Charles <ash@gumstix.com>
[trini: Rename gpmc_enable_gpmc_cs_config to gpmc_enable_gpmc_net_config] Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Fri, 16 May 2014 17:02:24 +0000 (13:02 -0400)]
armv7:TI: Add <asm/ti-common/sys_proto.h> and migrate omap_hw_init_context
The omap_hw_init_context function (and assorted helpers) is the same for
all OMAP-derived parts as when CHSETTINGS are used, that's the same and
our DDR base is also always the same. In order to make this common we
simply need to update the names of the define for DDR address space
which is also common.
Cc: Sricharan R. <r.sricharan@ti.com> Cc: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tom Rini <trini@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
pekon gupta [Thu, 8 May 2014 16:13:47 +0000 (21:43 +0530)]
ARM: omap: merge GPMC initialization code for all platform
GPMC controller on TI's OMAP SoC is general purpose controller to interface
with different types of external devices like;
- parallel NOR flash
- parallel NAND flash
- OneNand flash
- SDR RAM
- Ethernet Devices like LAN9220
Though GPMC configurations may be different for each platform depending on
clock-frequency and external device interfacing with controller. But
initialization sequence remains common across all platfoms.
Thus this patch merges gpmc_init() scattered in different arch-xx/mem.c
files into single omap-common/mem-common.c
However, actual platforms specific register config values are still sourced
from corresponding platform specific headers like;
AM33xx: arch/arm/include/asm/arch-am33xx/mem.h
OMAP3: arch/arm/include/asm/arch-omap3/mem.h
OMAP4: arch/arm/include/asm/arch-omap4/mem.h
OMAP4: arch/arm/include/asm/arch-omap5/mem.h
Also, CONFIG_xx passed by board-profile decide config for which set of macros
need to be used for initialization
CONFIG_NAND: initialize GPMC for NAND device
CONFIG_NOR: initialize GPMC for NOR device
CONFIG_ONENAND: initialize GPMC for ONENAND device
Signed-off-by: Pekon Gupta <pekon@ti.com>
[trini: define GPMC_SIZE_256M for omap3] Signed-off-by: Tom Rini <trini@ti.com>
Alexey Brodkin [Fri, 16 May 2014 08:54:17 +0000 (12:54 +0400)]
examples: select libgcc for non-default architecture
In case of multilib-enabled toolchains if default architecture differ from
the one examples are being built for linker will fail to link example object
files with libgcc of another (non-compatible) architecture.
Interesting enough for years in main Makefile we used CFLAGS/c_flags for this
but not for examples.
So fixing it now.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Rini <trini@ti.com> Cc: Wolfgang Denx <wd@denx.de> Acked-by: WOlfgang Denk <wd@denx.de> Acked-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
pekon gupta [Thu, 8 May 2014 16:13:46 +0000 (21:43 +0530)]
ARM: omap5: add platform specific info for GPMC and ELM controllers
This patch moves platform specific information for GPMC and ELM controller
into separate header files, so that any derivative devices do not mess other
header files.
Platform specific information added into arch-xx/../hardware.h
- CPU related platform specific details like base-address of GPMC and ELM
Platform specific information added into arch-xx/../mem.h
- Generic configs for GPMC and ELM initialization.
- Hardware parameters or constrains specific to GPMC and ELM IP like;
number of max number of chip-selects available