Note that with older board revisions, NAND boot may only work after a
power-on reset, and not after a warm reset. I don't have a newer board
to test on; if you have a board with a 33MHz crystal, please let me know
if it works after a warm reset.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Here comes a trivial patch to cpu/arm926ejs/davinci/nand.c. Unfortunately I
don't have hardware handy so I can not test it at the moment but changes are
rather trivial so it should work. It would be nice if somebody with a
hardware checked it anyways.
Signed-off-by: Sergey Kubushyn <ksi@koi8.net>
This patch changes the 4xx NAND driver ndfc.c to match the new
infrastructure from the updated NAND subsystem. This NAND
subsystem was recently synced again with the Linux 2.6.22 MTD/NAND
subsystem.
Tested successfully on AMCC Sequoia and Bamboo.
Signed-off-by: Stefan Roese <sr@denx.de>
- Fixing leading white spaces
- Fixing indentation where 4 spaces are used instead of tab
- Removing C++ comments (//), wherever I introduced them
Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
A lot changed in the Linux MTD code, since it was last ported from
Linux to U-Boot. This patch takes U-Boot NAND support to the level
of Linux 2.6.22.1 and will enable support for very large NAND devices
(4KB pages) and ease the compatibility between U-Boot and Linux
filesystems.
This patch is tested on two custom boards with PPC and ARM
processors running YAFFS in U-Boot and Linux using gcc-4.1.2
cross compilers.
MAKEALL ppc/arm has some issues:
* DOC/OneNand/nand_spl is not building (I have not tried porting
these parts, and since I do not have any HW and I am not familiar
with this code/HW I think its best left to someone else.)
Except for the issues mentioned above, I have ported all drivers
necessary to run MAKEALL ppc/arm without errors and warnings. Many
drivers were trivial to port, but some were not so trivial. The
following drivers must be examined carefully and maybe rewritten to
some degree:
cpu/ppc4xx/ndfc.c
cpu/arm926ejs/davinci/nand.c
board/delta/nand.c
board/zylonite/nand.c
Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Stig Olsen <stig.olsen@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Use CONFIG_NUM_CPUS to match existing define used by 86xx.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Jon Loeliger <jdl@freescale.com>
This is needed because we will be possibly be locating
devices at physical addresses above 32bits, and the asm
preprocessing does not appear to deal with ULL constants
properly. We now call write_bat in lib_ppc/bat_rw.c.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Correct the mx31_gpio_mux() function to allow changing all i.MX31 IOMUX
contacts instead of only the first 256 ones as is the case prior to
this patch.
Add missing MUX_* macros and update board files to use the new macros.
Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
On ADS5121 when booting linux the following errors are seen:
Unable to update property /soc5121@80000000:bus-frequency, err=FDT_ERR_NOTFOUND
Unable to update property /soc5121@80000000/ethernet@2800:local-mac-address, err=FDT_ERR_NOTFOUND
Unable to update property /soc5121@80000000/ethernet@2800:address, err=FDT_ERR_NOTFOUND
This is caused by ft_cpu_setup trying to deal with
both old and new soc node naming. This patch
fixes this by being smarter about what to
fixup.
Also do soc node fixups by compatible instead of by path.
A new board config called OF_SOC_COMPAT defined
to be "fsl,mpc5121-immr" replaces the old
OF_SOC node path that was defined to be "soc@80000000".
Old device trees still work, but the compatiblity
is conditional on CONFIG_OF_SUPPORT_OLD_DEVICE_TREES
which is on by default in include/configs/ads5121.h.
Signed-off-by: John Rigby <jrigby@freescale.com>
The Hammerhead platform is built around a AVR32 32-bit microcontroller
from Atmel. It offers versatile peripherals, such as ethernet, usb
device, usb host etc.
The board also incooperates a power supply and is a Power over Ethernet
(PoE) Powered Device (PD).
Additonally, a Cyclone III FPGA from Altera is integrated on the board.
The FPGA is mapped into the 32-bit AVR memory bus. The FPGA offers two
DDR2 SDRAM interfaces, which will cover even the most exceptional need
of memory bandwidth. Together with the onboard video decoder the board
is ready for video processing.
For more information see: http:///www.miromico.com/hammerhead
Signed-off-by: Julien May <mailinglist@miromico.ch>
[haavard.skinnemoen@atmel.com: various small fixes and adaptions]
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Support for the adsvix was originally provided by Applied Data
Systems (ADS), inc., now EuroTech, Inc.
The board never shipped aside from some sample boards.
Signed-off-by: Adrian Filipi <adrian.filipi@eurotech.com>
Use CFG_MIPS_TIMER_FREQ when computing the baudrate divisor
on alchemy cpus.
Signed-off-by: Wolfgang Ocker <weo@reccoware.de>
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
This patch fixes a problem with incorrect MODTx (On Die Termination)
setup for a configuration with multiple DIMM's and multiple ranks.
Without this change Katmai was unable to boot Linux with DDR2 frequency
>= 533MHz and mem>=3GB. With this patch Katmai successfully boots Linux
with DDR2 frequency = 640MHz and mem=4GB.
Signed-off-by: Stefan Roese <sr@denx.de>
-This patchs gives support for the embbedded ppc440
on the Virtex5 FPGAs
-interrupts.c divided in uic.c and interrupts.c
-xilinx_irq.c for xilinx interrupt controller
-Include modifications propossed by Stefan Roese
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@uam.es>
Acked-by: Stefan Roese <sr@denx.de>
The L2 size detection code was a bit confusing and we kept having to add
code to it to handle new processors. Change the sense of detection so we
look for the older processors that aren't changing.
Also added support for 1M cache size on 8572.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Some boards that have external 16550 UARTs don't have a direct
tie between bi_busfreq and the clock used for the UARTs. Boards
that do have such a tie should set CFG_NS16550_CLK to be
get_bus_freq(0) -- which most of them do already.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
With a page size of BOOKE_PAGESZ_16M, both the real and effective
addresses must be multiples of 16MB. The hardware silently truncates
them so the code happens to work. This patch clarifies the situation
by establishing addresses that the hardware doesn't need to truncate.
Signed-off-by: Andrew Klossner <andrew@cesa.opbu.xerox.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Delete the crypto node if not on an E-processor. If on 8360 or 834x family,
check rev and up-rev crypto node (to SEC rev. 2.4 property values)
if on an 'EA' processor, e.g. MPC8349EA.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
This patch removes some ft_board_setup() functions from some 4xx boards.
This can be done since we now have a default weak implementation for this
in cpu/ppc4xx/fdt.c. Only board in need for a different/custom
implementation like canyonlands need their own version.
Signed-off-by: Stefan Roese <sr@denx.de>
Remove all CFG_CSn_RO in cpu/mcf52x2/cpu_init.c. If
CFG_CSn_RO is defined as 0, the chipselect will not
be assigned.
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Rename CONFIG_MCFTMR to CONFIG_MCFRTC to include real time
clock module in cpu/<cf arch>/cpu_init.c
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
This patch now moves common.h to the top of the inlcude list. This
is needed for boards with CONFIG_PHYS_64BIT set (e.g. katmai), so that
the phys_size_t/phys_addr_t are defined to the correct size in this
driver.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch reworks the 440GX interrupt handling so that the common 4xx
code can be used. The 440GX is an exception to all other 4xx variants
by having the cascading interrupt vectors not on UIC0 but on a special
UIC named UICB0 (UIC Base 0). With this patch now, U-Boot references
the 440GX UICB0 when UIC0 is selected. And the common 4xx interrupt
handling is simpler without any 440GX special cases.
Also some additional cleanup to cpu/ppc4xx/interrupt.c is done.
Signed-off-by: Stefan Roese <sr@denx.de>
This 2nd patch now removes all UIC mask bit definition. They should be
generated from the vectors by using the UIC_MASK() macro from now on.
This way only the vectors need to get defined for new PPC's.
Also only the really used interrupt vectors are now defined. This makes
definitions for new PPC versions easier and less error prone.
Another part of this patch is that the 4xx emac driver got a little
cleanup, since now the usage of the interrupts is clearer.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch is the first step to consolidate the UIC related defines in the
4xx headers. Move header from asm-ppc/ppc4xx-intvec.h to
asm-ppc/ppc4xx-uic.h as it will hold all UIC related defines in the next
steps.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch removes some ft_board_setup() functions from some 4xx boards.
This can be done since we now have a default weak implementation for this
in cpu/ppc4xx/fdt.c. Only board in need for a different/custom
implementation like canyonlands need their own version.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds support for placing the RGMII bridge on the
PPC405EX(r) into MII/GMII mode and allows a board-specific
configuration to specify the bridge mode at compile-time.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This patch completes the preprocessor mneomics for the IBM DDR2 SDRAM
controller registers (MODT and INITPLR) used by the
PowerPC405EX(r). The MMODE and MEMODE registers are unified with their
peer values used for the INITPLR MR and EMR registers,
respectively. Finally, a spelling typo is correct (MANUEL to MANUAL).
With these mnemonics in place, the CFG_SDRAM0_* magic numbers for
Kilauea are replaced by equivalent mnemonics to make it easier to
compare and contrast other 405EX(r)-based boards (e.g. during board
bring-up).
Finally, unified the SDRAM controller register dump routine such that
it can be used across all processor variants that utilize the IBM DDR2
SDRAM controller core. It produces output of the form:
PPC4xx IBM DDR2 Register Dump:
...
SDRAM_MB0CF[40] = 0x00006701
...
which is '<mnemonic>[<DCR #>] = <value>'. The DCR number is included
since it is not uncommon that the DCR values in header files get mixed
up and it helps to validate, at a glance, they match what is printed
in the user manual.
Tested on:
AMCC Kilauea/Haleakala:
- NFS Linux Boot: PASSED
- NAND Linux Boot: PASSED
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Stefan Roese <sr@denx.de>
ADS5121 Rev 3 board is now the default config
config targets are now
ads5121_config
Rev 3 board with
PCI
M41T62 on board RTC
512MB DRAM
ads5121_rev2_config
Rev 2 board with
No PCI
256MB DRAM
Signed-off-by: Martha Marx <mmarx@silicontkx.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: John Rigby <jrigby@freescale.com>
This patch fixes ppc4xx related printf format warning. Those warnings are
now visible since patch dc4b0b38d4
[Fix printf errors.] by Andrew Klossner has been applied. Thanks, this is
really helpful.
Signed-off-by: Stefan Roese <sr@denx.de>
Newer PPC's like 440SPe, 460EX/GT can be equipped with more than 2GB of SDRAM.
To support such configurations, we "only" map the first 2GB via the TLB's. We
need some free virtual address space for the remaining peripherals like, SoC
devices, FLASH etc.
Note that ECC is currently not supported on configurations with more than 2GB
SDRAM. This is because we only map the first 2GB on such systems, and therefore
the ECC parity byte of the remaining area can't be written.
Signed-off-by: Stefan Roese <sr@denx.de>
This is particularly problematic now that non-NAND-specific code is
including <nand.h>, and thus all debugging code is being compiled
regardless of whether it was requested, as reported by Scott McNutt
<smcnutt@psyent.com>.
Signed-off-by: Scott Wood <scottwood@freescale.com>
This makes it easier to use the driver on other platforms.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Acked-by: Jean-Chritophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
After we move the atmel_mci driver into drivers/mmc, we can't select
it with CONFIG_MMC anymore. Introduce a new symbol specifically for
this driver so that there's no ambiguity.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Acked-by: Jean-Chritophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
The compiler will help find mismatches between printf formats and
arguments if you let it. This patch adds the necessary attributes to
declarations in include/common.h, then begins to correct the resulting
compiler warnings. Some of these were bugs, e.g., "$d" instead of
"%d" and incorrect arguments. Others were just annoying, like
int-long mismatches on a system where both are 32 bits. It's worth
fixing the annoying errors to catch the real ones.
Signed-off-by: Andrew Klossner <andrew@cesa.opbu.xerox.com>
By Cleanup out-or-tree building for some boards (.depend)
(commit:c8a3b109f07f02342d097b30908965f7261d9f15)
because filse ware changed, some SH-boards have compile error.
I revised this problem.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
The watchdog on 8610 board is enabled by setting sw[6]
to on. Once enabled, the watchdog can not be disabled
by software. So feed the dog in u-boot is necessary for
normal operation.
Signed-off-by: Jason Jin <Jason.jin@freescale.com>
Remove duplicate code in cpu/arm926ejs/davinci/lxt972.c.
Remove duplicate code in a if/else block in
cpu/arm926ejs/davinci/lxt972.c.
Fixed style issues.
Signed-off-by: Hugo Villeneuve <hugo.villeneuve@lyrtech.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Remove duplicate definitions in include/lxt971a.h.
Remove duplicate registers and bits definitions in
include/lxt971a.h for standard MII registers, and
use values in include/miiphy.h instead.
Signed-off-by: Hugo Villeneuve <hugo.villeneuve@lyrtech.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
This change helps with better handling with others
Xilinx based platform.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stefan Roese <sr@denx.de>
This patch is the first step in cleaning up net/eth.c, by moving Ethernet
initialization to CPU or board-specific code. Initial implementation is
only on the Freescale TSEC controller, but others will be added soon.
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Conflicts:
board/amirix/ap1000/serial.c
board/exbitgen/exbitgen.c
board/exbitgen/flash.c
board/ml2/serial.c
board/xilinx/ml300/serial.c
Signed-off-by: Wolfgang Denk <wd@denx.de>
The Register URXD contains status information in bits [15..8].
With status bit 15 set, CTRL-C was reported as 0x8003 instead
of 0x03. Therefore CTRL-C was not detected.
To solve this, bits [15..8] were masked out now.
Signed-off-by: Juergen Kilb <J.Kilb@gmx.de>
Acked-by: Felix Radensky <felix@embedded-sol.com>
This patch fixes a bug where the 460EX/GT PCIe UTLSET1 register was
configured incorrectly. Thanks to Olga Buchonina from AMCC for pointing
this out.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch implements a fix provided by AMCC so that the lockup upon
simultanious traffic on AHB USB OTG, USB 2.0 and SATA doesn't occur
anymore:
Set SDR0_AHB_CFG[A2P_INCR4] (bit 24) and clear SDR0_AHB_CFG[A2P_PROT2]
(bit 25) for a new 460EX errata regarding concurrent use of AHB USB OTG,
USB 2.0 host and SATA.
This errata is not officially available yet. I'll update the comment
to add the errata number later.
Signed-off-by: Stefan Roese <sr@denx.de>
This moves the MMC and SD Card command definitions from
include/asm/arch/mmc.h into include/mmc.h. These definitions are
given by the MMC and SD Card standards, not by any particular
architecture.
There's a lot more room for consolidation in the MMC drivers which
I'm hoping to get done eventually, but this patch is a start.
Compile-tested for all avr32 boards as well as lpc2292sodimm and
lubbock. This should cover all three mmc drivers in the tree.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
During 83xx setup the "System I/O configuration register high" gets
overwritten with user defined value if CFG_SICRH is defined.
Regarding to the MPC834x manual (Table 5-28 reve.1) bits 28+29 of SICRH
must keep their reset value regardless of configuration.
On my board (using RGMII) those bits are set after reset - yet it's
unclear where they come from.
The patch keeps both bits on MPC834x and MPC8313.
Signed-off-by: Andre Schwarz <andre.schwarz@matrix-vision.de>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
to avoid this:
cpu.c:47:1: warning: "CPU_TYPE_ENTRY" redefined
In file included from cpu.c:33:
/home/kim/git/u-boot/include/asm/processor.h:982:1: warning: this is the location of the previous definition
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
As pointed out by Guennadi Liakhovetski (thanks), pin2 is already shifted
left by one. So the additional shift is bogus.
Signed-off-by: Stefan Roese <sr@denx.de>
Use the new GPIO manipulation functions to set up the chip select lines,
and make sure both busses use GPIO for chip select control.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Building for 4xx doesn't work since commit 4dbdb768:
In file included from 4xx_pcie.c:28:
include/asm/processor.h:971: error: expected ')' before 'ver'
make[1]: *** [4xx_pcie.o] Error 1
This patch fixes the problem.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
This patch changes the return type of initdram() from long int to phys_size_t.
This is required for a couple of reasons: long int limits the amount of dram
to 2GB, and u-boot in general is moving over to phys_size_t to represent the
size of physical memory. phys_size_t is defined as an unsigned long on almost
all current platforms.
This patch *only* changes the return type of the initdram function (in
include/common.h, as well as in each board's implementation of initdram). It
does not actually modify the code inside the function on any of the platforms;
platforms which wish to support more than 2GB of DRAM will need to modify
their initdram() function code.
Build tested with MAKEALL for ppc, arm, mips, mips-el. Booted on powerpc
MPC8641HPCN.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
With the new LAW interface (set_next_law) we can move to letting the
system allocate which LAWs are used for what purpose. This makes life
a bit easier going forward with the new DDR code.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Becky Bruce <becky.bruce@freescale.com>
Make it so we keep track of which LAWs have allocated and provide
a function (set_next_law) which can allocate a LAW for us if one is
free.
In the future we will move to doing more "dynamic" LAW allocation
since the majority of users dont really care about what LAW number
they are at.
Also, add CONFIG_MPC8540 or CONFIG_MPC8560 to those boards which needed them
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
The boot output is now aligned poperly with other boot output
lines, e.g.:
FLASH: 128 MB
L2: 512 KB enabled
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
The current cpu identification code is used just to return the name
of the processor at boot. There are some other locations that the name
is useful (device tree setup). Expose the functionality to other bits
of code.
Also, drop the 'E' suffix and add it on by looking at the SVR version
when we print this out. This is mainly to allow the most flexible use
of the name. The device tree code tends to not care about the 'E' suffix.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Use CONFIG_OF_LIBFDT instead to support flattened device trees. It is
cleaner, has better functionality, and is better supported.
Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
This was configured to use the deprecated CONFIG_OF_FLAT_TREE, change
to CONFIG_OF_LIBFDT.
WARNING: This conversion is untested because I do not have a board to
test it on.
NOTE: The FDT blob (DTS) must have an /aliases/ethernet0 and (optionally)
/aliases/ethernet1 property for the ethernet to work.
Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
Currently, END_OF_RAM is used by the trap code to determine if
we should attempt to access the stack pointer or not. However,
on systems with a lot of RAM, only a subset of the RAM is
guaranteed to be mapped in and accessible. Change END_OF_RAM
to use get_effective_memsize() instead of using the raw ram
size out of the bd.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
CONFIG_SOC_AU1X00
Common Alchemy Au1x00 stuff. All Alchemy processor based machines
need to have this config as a system type specifier.
CONFIG_SOC_AU1000, CONFIG_SOC_AU1100, CONFIG_SOC_AU1200,
CONFIG_SOC_AU1500, CONFIG_SOC_AU1550
Machine type specifiers. Each port should have one of aboves.
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
Currently, END_OF_RAM is used by the trap code to determine if
we should attempt to access the stack pointer or not. However,
on systems with a lot of RAM, only a subset of the RAM is
guaranteed to be mapped in and accessible. Change END_OF_RAM
to use get_effective_memsize() instead of using the raw ram
size out of the bd to prevent us from trying to access
non-mapped memory.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
We use upper case letters for the AMCC processor defines (like
CONFIG_440SPE) in U-Boot. So the 440SPe is labeled CONFIG_440SPE and
not CONFIG_440SPe. This patch fixes the last misspelled config options.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch simplifies post_word_{load,store} by using the preprocessor
to eliminate redundant, copy-and-pasted code.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
This adds a driver for the SPI controller found on most AT91 and AVR32
chips, implementing the new SPI API.
Changed in v4:
- Update to new API
- Handle zero-length transfers appropriately. The user may send a
zero-length SPI transfer with SPI_XFER_END set in order to
deactivate the chip select after a series of transfers with chip
select active. This is useful e.g. when polling the status
register of DataFlash.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
This patch gets rid of the spi_chipsel table and adds a handful of new
functions that makes the SPI layer cleaner and more flexible.
Instead of the spi_chipsel table, each board that wants to use SPI
gets to implement three hooks:
* spi_cs_activate(): Activates the chipselect for a given slave
* spi_cs_deactivate(): Deactivates the chipselect for a given slave
* spi_cs_is_valid(): Determines if the given bus/chipselect
combination can be activated.
Not all drivers may need those extra functions however. If that's the
case, the board code may just leave them out (assuming they know what
the driver needs) or rely on the linker to strip them out (assuming
--gc-sections is being used.)
To set up communication parameters for a given slave, the driver needs
to call spi_setup_slave(). This returns a pointer to an opaque
spi_slave struct which must be passed as a parameter to subsequent SPI
calls. This struct can be freed by calling spi_free_slave(), but most
driver probably don't want to do this.
Before starting one or more SPI transfers, the driver must call
spi_claim_bus() to gain exclusive access to the SPI bus and initialize
the hardware. When all transfers are done, the driver must call
spi_release_bus() to make the bus available to others, and possibly
shut down the SPI controller hardware.
spi_xfer() behaves mostly the same as before, but it now takes a
spi_slave parameter instead of a spi_chipsel function pointer. It also
got a new parameter, flags, which is used to specify chip select
behaviour. This may be extended with other flags in the future.
This patch has been build-tested on all powerpc and arm boards
involved. I have not tested NIOS since I don't have a toolchain for it
installed, so I expect some breakage there even though I've tried
fixing up everything I could find by visual inspection.
I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and
DataFlash drivers posted as a follow-up. I'd like some help testing
other boards that use the existing SPI API.
But most of all, I'd like some comments on the new API. Is this stuff
usable for everyone? If not, why?
Changed in v4:
- Build fixes for various boards, drivers and commands
- Provide common struct spi_slave definition that can be extended by
drivers
- Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate
- Make default bus and mode build-time configurable
- Override default SPI bus ID and mode on mx32ads and imx31_litekit.
Changed in v3:
- Add opaque struct spi_slave for controller-specific data associated
with a slave.
- Add spi_claim_bus() and spi_release_bus()
- Add spi_free_slave()
- spi_setup() is now called spi_setup_slave() and returns a
struct spi_slave
- soft_spi now supports four SPI modes (CPOL|CPHA)
- Add bus parameter to spi_setup_slave()
- Convert the new i.MX32 SPI driver
- Convert the new MC13783 RTC driver
Changed in v2:
- Convert the mpc8xxx_spi driver and the mpc8349emds board to the
new API.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Tested-by: Guennadi Liakhovetski <lg@denx.de>
Historically the 405 U-Boot port had a dram_init() call in early init
stage. This function was still called from start.S and most of the time
coded in assembler. This is not needed anymore (since a long time) and
boards should implement the common initdram() function in C instead.
This patch now removed the dram_init() call from start.S and removes the
empty implementations that are scattered through most of the 405 board
ports. Some older board ports really implement this dram_init() though.
These are:
csb272
csb472
ERIC
EXBITGEN
W7OLMC
W7OLMG
I changed those boards to call this assembler dram_init() function now
from their board specific initdram() instead. This *should* work, but please
test again on those platforms. And it is perhaps a good idea that those
boards use some common 405 SDRAM initialization code from cpu/ppc4xx at
some time. So further patches welcome here.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch makes the common 4xx ECC code really usable on 440GP style
platforms.
Since the IBM DDR controller used on 440GP/GX/EP/GR is not register
compatible to the IBM DDR/2 controller used on 405EX/440SP/SPe/460EX/GT
we need to make some processor dependant defines used later on by the
driver.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch changes the kilauea and kilauea_nand (for NAND booting)
board port to not use a board specific DDR2 init routine anymore. Now
the common code from cpu/ppc4xx is used.
Thanks to Grant Erickson for all his basic work on this 405EX early
bootup.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch removes all SDRAM related defines from the PPC4xx headers
ppc405.h and ppc440.h. This is needed since now some 405 PPC's use
the same SDRAM controller as 440 systems do (like 405EX and 440SP).
It also introduces new defines for the equipped SDRAM controller based on
which PPC variant is used. There new defines are:
used on 405GR/CR/EP and some Xilinx Virtex boards.
used on 440GP/GX/EP/GR.
used on 440EPx/GRx.
used on 405EX/r/440SP/SPe/460EX/GT.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch consolidates the 405 and 440 parts of the NAND booting code
selected via CONFIG_NAND_SPL. Now common code is used to initialize the
SDRAM by calling initdram() and to "copy/relocate" to SDRAM/OCM/etc.
Only *after* running from this location, nand_boot() is called.
Please note that the initsdram() call is now moved from nand_boot.c
to start.S. I experienced problems with some boards like Kilauea
(405EX), which don't have internal SRAM (OCM) and relocation needs to
be done to SDRAM before the NAND controller can get accessed. When
initdram() is called later on in nand_boot(), this can lead to problems
with variables in the bss sections like nand_ecc_pos[].
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Scott Wood <scottwood@freescale.com>
This patch (Part 1 of 2):
* Rolls up a suite of changes to enable correct primordial stack and
global data handling when the data cache is used for such a purpose
for PPC40x-variants (i.e. CFG_INIT_DCACHE_CS).
* Related to the first, unifies DDR2 SDRAM and ECC initialization by
eliminating redundant ECC initialization implementations and moving
redundant SDRAM initialization out of board code into shared 4xx
code.
* Enables MCSR visibility on the 405EX(r).
* Enables the use of the data cache for initial RAM on
both AMCC's Kilauea and Makalu and removes a redundant
CFG_POST_MEMORY flag from each board's CONFIG_POST value.
- Removed, per Stefan Roese's request, defunct memory.c file for
Makalu and rolled sdram_init from it into makalu.c.
With respect to the 4xx DDR initialization and ECC unification, there
is certainly more work that can and should be done (file renaming,
etc.). However, that can be handled at a later date on a second or
third pass. As it stands, this patch moves things forward in an
incremental yet positive way for those platforms that utilize this
code and the features associated with it.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This patch simplifies post_word_{load,store} by using the preprocessor
to eliminate redundant, copy-and-pasted code.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Currently, END_OF_RAM is used by the trap code to determine if
we should attempt to access the stack pointer or not. However,
on systems with a lot of RAM, only a subset of the RAM is
guaranteed to be mapped in and accessible. Change END_OF_RAM
to use get_effective_memsize() instead of using the raw ram
size out of the bd.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Change all code that conditionally operates on high bat
registers (that is, BATs 4-7) to look at CONFIG_HIGH_BATS
instead of the myriad ways this is done now. Define the option
for every config for which high bats are supported (and
enabled by early boot, on parts where they're not always
enabled)
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
If the specified delay is very short, the cycle counter may go past the
"end" time we are waiting for before we get around to reading it.
Fix it by checking the different between the cycle count "now" and the
cycle count at the beginning. This will work as long as the delay
measured in number of cycles is below 2^31.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Remove #ifdef CONFIG_MMC from the source file and use conditional
compilation in the Makefile instead.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Make sure we check for CRC errors when sending commands that use CRC
checking.
Reported-by: Gururaja Hebbar K R <gururajakr@sanyo.co.in>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
This cleans up the SDRAM initialization and related code a bit, and
allows faster booting.
* Add definitions for EBI and internal SRAM to asm/arch/memory-map.h
* Remove memory test from sdram_init() and make caller responsible
for verifying the SDRAM and determining its size.
* Remove base_address member from struct sdram_config (was sdram_info)
* Add data_bits member to struct sdram_config and kill CFG_SDRAM_16BIT
* Add support for a common STK1000 hack: 16MB SDRAM instead of 8.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Don't do a stack dump if the stack pointer is outside the memory area
reserved for stack.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
