Commit graph

64 commits

Author SHA1 Message Date
Dinh Nguyen
55c7a765f6 arm: socfpga: Add support for the Terasic DE-0 Atlas board
Add support for the Terasic DE0-Nano/Atlas-SoC Kit, which is a CycloneV
based board. The board can boot from SD/MMC. Ethernet is also supported.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-09-04 11:54:21 +02:00
Marek Vasut
d88995a82b arm: socfpga: Add support for DENX MCV SoM and MCVEVK board
Add support for DENX MCV SoM, which is CycloneV based and the
associated DENX MCVEVK baseboard. The board can boot from eMMC.
Ethernet and USB is supported.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-09-04 11:54:21 +02:00
Marek Vasut
952caa289e arm: socfpga: Add support for Terasic SoCkit board
Add support for Terasic SoCkit, which is CycloneV based board.
The board can boot either from SD/MMC or QSPI. Ethernet is also
supported.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-09-04 11:54:21 +02:00
Marek Vasut
a665b051b5 arm: socfpga: Do not call board_init_r() from board_init_f()
Instead of calling board_init_r() directly from board_init_f(), just
return from board_init_f(). This will make the code continue executing
in crt0.S _main(), from which the board_init_r() is called. This patch
aligns the SoCFPGA SPL with the correct SPL design as well as reduces
the stack utilisation slightly.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-09-04 11:54:20 +02:00
Marek Vasut
65d372c44c arm: socfpga: Assure ISWGRP 0 and 1 are inited
This fix makes sure that the ISWGRP0 and ISWGRP1 registers are
correctly inited. In case those registers are not initialized,
it is not possible to access the registers synthesised in the
FPGA through the bridges. Any such access produces data abort.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-09-04 11:54:20 +02:00
Marek Vasut
129adf5bf4 mmc: dw_mmc: Probe the MMC from OF
Rework the driver to probe the MMC controller from Device Tree
and make it mandatory. There is no longer support for probing
from the ancient qts-generated header files.

This patch now also removes previous temporary workaround.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Tom Rini <trini@konsulko.com>
2015-09-04 11:54:20 +02:00
Marek Vasut
cc9429a556 arm: socfpga: Make the pinmux table const u8
Now that we're actually converting the QTS-generated header files,
we can even adjust their data types. A good candidate for this is
the pinmux table, where each entry can have value in the range of
0..3, but each element is declared as unsigned long. By changing
the type to u8, we can save over 600 Bytes from the SPL, so do it.
This patch also constifies the array.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-23 11:56:20 +02:00
Marek Vasut
f6badb0d89 arm: socfpga: Switch to filtered QTS files
Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-23 11:56:20 +02:00
Marek Vasut
e996b9362b arm: socfpga: Add qts-filter.sh script
Add script which loads the QTS-generated sources and headers and converts
them into sensible format which can be used with much more easy in mainline
U-Boot. The script also filters out macros which makes no sense anymore, so
they don't pollute namespace and waste space.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-23 11:56:20 +02:00
Marek Vasut
f089240128 arm: socfpga: Split Altera socfpga into AV and CV SoCDK
The board/altera/socfpga directory is not a generic SoCFPGA machine
anymore, but instead it represents the Altera SoCDK board. To make
matters more complicated, it represents both CycloneV and ArriaV
variant.

On the other hand, nowadays, the content of this board directory is
mostly comprised of QTS-generated header files, while all the generic
code is in arch/arm/mach-socfpga already.

Thus, this patch splits the board/altera/socfpga into a separate
board directory for ArriaV SoCDK and CycloneV SoCDK, so that each
can be populated with the correct QTS-generated header files for
that particular board.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-23 11:56:19 +02:00
Marek Vasut
cd9b731771 arm: socfpga: Unbind CPU type from board type
The CONFIG_TARGET_SOCFPGA_CYCLONE5 and CONFIG_TARGET_SOCFPGA_ARRIA5
selected both a board and a CPU. This is not correct as these macros
are supposed to select only board.

All would be good, if QTS-generated header files didn't check for
these macros exactly to determine if the platform is Cyclone V or
Arria V. Thus, for the sake of compatibility with not well fleshed
out header file generator, this patch makes these two macros into
a stub config option and introduces new CONFIG_TARGET_SOCFPGA_CYCLONE5_SOCDK
and CONFIG_TARGET_SOCFPGA_ARRIA5_SOCDK targets, which select the
previous stub config option.

The result is that compatibility with QTS is preserved and the new
CONFIG_TARGET_* select actual target boards.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-23 11:56:19 +02:00
Marek Vasut
ca62d2e1fc arm: socfpga: Move wrappers into platform directory
Move the wrappers for QTS-generated files into platform directory
out of the board directory. The trick here is to add -I to CFLAGS
such that it points to the board directory in source tree and thus
the qts/ directory there is still reachable.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-23 11:56:19 +02:00
Marek Vasut
7e4d2fa2ed arm: socfpga: Fix delay in clock manager
This code claims it needs to wait 7us, yet it uses get_timer() function
which operates with millisecond granularity. Use timer_get_us() instead,
which operates with microsecond granularity.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-23 11:56:19 +02:00
Marek Vasut
a8535c306c arm: socfpga: Fix delay in freeze controller
Based on observation, this udelay(20) was apparently too high and caused
subsequent failure to calibrate DDR when U-Boot was compiled with certain
toolchains. Lowering this delay fixed the problem.

Instead of permanently lowering the delay, calculate the correct delay
based on the original comment, that is, obtain EOSC1 frequency and use
it to calculate the precise delay.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-23 11:56:19 +02:00
Dinh Nguyen
bd48c0617b arm: socfpga: misc: Add support for printing FPGA type
Add code which uses the new functions for obtaining FPGA ID from
the scan manager. This new code prints the FPGA model attached to
the SoCFPGA during boot and sets environment variable "fpgatype",
which can be used to determine the FPGA model in U-Boot scripts.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:30 +02:00
Dinh Nguyen
bd0f5a91f3 arm: socfpga: scan: Add code to get FPGA ID
Add code to get the FPGA type for Altera's SoCFPGA family of FPGA. The code
uses the scan manager to send jtag pulses that will return the FPGA ID.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:30 +02:00
Marek Vasut
5e19b68aa1 arm: socfpga: scan: Factor out IO chain programming
Factor out the code which sends JTAG instruction followed by data
into separate function to tidy the code up a little.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:30 +02:00
Marek Vasut
62a0c9cff3 arm: socfpga: scan: Clean up horrible macros
Clean up the horrible macros present in the scan_manager.h . Firstly,
the function scan_mgr_io_scan_chain_prg() is static, yet all the macros
are used only within it, thus there is no point in having them in the
header file. Moreover, the macros are just making the code much less
readable, so remove them instead.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:30 +02:00
Marek Vasut
66acc190e9 arm: socfpga: scan: Introduce generic JTAG accessor
Introduce generic function for accessing the JTAG scan chains in the
SCC manager. Make use of this function throughout the SCC manager to
replace the ad-hoc writes to registers and make the code less cryptic.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:30 +02:00
Marek Vasut
aa5659ac65 arm: socfpga: scan: Clean up scan_chain_engine_is_idle()
Rework this function so it's clear that it is only polling for certain
bits to be cleared. Add kerneldoc. Fix it's return value to be either
0 on success and -ETIMEDOUT on error and propagate this through the
scan manager code.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:30 +02:00
Marek Vasut
042ff2d0fa ddr: altera: sequencer: Wrap misc remaining macros
Introduce structure socfpga_sdram_misc_config to wrap the remaining
misc configuration values in board file. Again, introduce a function,
socfpga_get_sdram_misc_config(), which returns this the structure. This
is almost the final step toward wrapping the nasty QTS generated macros
in board files and reducing the pollution of the namespace.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:29 +02:00
Marek Vasut
10c14261f3 ddr: altera: sequencer: Wrap IO_* macros
Introduce structure socfpga_sdram_io_config to wrap the IO configuration
values in board file. Introduce socfpga_get_sdram_io_config() function,
which returns this the structure. This is another step toward wrapping
the nasty QTS generated macros in board files and reducing the pollution
of the namespace.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:29 +02:00
Marek Vasut
d718a26b0c ddr: altera: sequencer: Wrap RW_MGR_* macros
Introduce structure socfpga_sdram_rw_mgr_config to wrap the RW manager
configuration values in board file. Introduce a complementary function,
socfpga_get_sdram_rwmgr_config(), which returns this the structure.
This is another step toward wrapping the nasty QTS generated macros
in board files and reducing the pollution of the namespace.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:29 +02:00
Marek Vasut
04955cf247 ddr: altera: sequencer: Wrap ac_rom_init and inst_rom_init
Introduce two wrapper functions, socfpga_get_seq_ac_init() and
socfpga_get_seq_inst_init() to avoid direct inclusion of the
sequencer_auto_ac_init.h and sequencer_auto_inst_init.h QTS
generated files. This reduces namespace pollution again.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:28 +02:00
Marek Vasut
c4ecc98974 ddr: altera: sequencer: Clean up mach/sdram.h
Zap non-existent functions and place function prototypes at the
beginning of the header file.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:28 +02:00
Marek Vasut
5af914189e ddr: altera: sdram: Introduce socfpga_sdram_get_config()
Introduce socfpga_sdram_get_config() function implement in a board file,
which returns the socfpga_sdram_config structure. This is the last step
in cleaning up the socfpga_mmr_init_full(), but not the last step which
allows removing the inclusion of sdram.h from drivers/ddr/altera/sdram.c
thus far.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:27 +02:00
Marek Vasut
99f453e953 ddr: altera: sdram: Clean up sdram_mmr_init_full() part 8
Fix the return value so that standard errno return values can be used.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:27 +02:00
Marek Vasut
03439e4064 arm: socfpga: Add temporary workaround for missing SD/MMC patches
Add a small workaround into the platform code which forces the SDMMC
into 8-bit mode (the default configuration for all socfpga platforms)
to work around breakage caused by missing patches in mainline which
switch the probing of SD/MMC to OF instead of static configuraiton.

The patches will hit mainline after the SPL series, so to avoid build
issues, add this small temporary workaround.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:25 +02:00
Marek Vasut
17fdc9167f ddr: altera: Wrap SOCFPGA_SDR_ADDRESS into SDR_PHYGRP.*ADDRESS
Just trim down the constant SOCFPGA_SDR_ADDRESS + SDR_PHYGRP.*ADDRESS
in the code.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:11 +02:00
Marek Vasut
7599b53dc1 arm: socfpga: config: Move SPL GD and malloc to RAM
Now that the SPL structure is organised such that it matches the
U-Boot's SPL design, it is possible to use the option of relocating
GD to RAM. And since we have GD in RAM, move malloc area to RAM as
well. We point the malloc base pointer 1 MiB past U-Boot's load
address. We use simple malloc for SPL because it is 3kiB smaller
in terms of code size than regular malloc which was used thus far.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:09 +02:00
Marek Vasut
6ab00db226 arm: socfpga: misc: Reset ethernet from OF
Reset the GMAC ethernets based on the "resets" OF node instead of ad-hoc
hardcoded values in the U-Boot code. Since we don't have a proper reset
framework in place yet, we have to do this slightly ad-hoc parsing of the
OF tree instead.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
2015-08-08 14:14:08 +02:00
Marek Vasut
e14d3f7928 arm: socfpga: misc: Probe ethernet GMAC from OF
The GMAC can now be probed from OF, so enable DM ethernet and remove the
old ad-hoc designware_initialize() invocation.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
2015-08-08 14:14:08 +02:00
Marek Vasut
9ec7414e29 arm: socfpga: misc: Export bootmode into environment variable
setenv an environment variable called "bootmode" , which contains the
board boot mode. This can be in turn used in scripts to determine from
where to load kernel and such.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:08 +02:00
Marek Vasut
d85e311e7f arm: socfpga: misc: Add support for printing boot mode
Add support for printing from which device the SoCFPGA board booted.
This decodes the BSEL settings and prints it in human readable form.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:08 +02:00
Marek Vasut
ef84861b7d arm: socfpga: misc: Fix warm reset
Write necessary magic value into the Warm Boot from ON-Chip RAM
group Enable register to enable Warm reset support. Instead of
doing this in the reset_cpu() function, we do it in arch early
init to avoid breaking old kernel code which expects this magic
value to be already written into this register.

This magic is originally excavated from common/spl/spl.c in the
u-boot port from altera, where this value was written just before
the SPL jumped to actual U-Boot in the RAM.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:08 +02:00
Marek Vasut
066ad14a22 arm: socfpga: spl: Add support for selecting boot device from BSEL
Rework spl_boot_device() such that it reads the BSEL settings from
system manager and decides from where to load U-Boot based on this
information.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:08 +02:00
Marek Vasut
346d6f5667 arm: socfpga: spl: Add support for booting from QSPI
Add code and configuration options to support booting from QSPI NOR.
Enable support for booting from QSPI NOR.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:08 +02:00
Marek Vasut
d3f34e752d arm: socfpga: spl: Add support for booting from SD/MMC
Add code and configuration options to support booting from RAW
SD/MMC card as well as for ext4/vfat filesystems. Enable support
for booting from SD/MMC card, but don't enable the filesystem
support just yet to retain compatibility with old SoCFPGA card
format.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:08 +02:00
Marek Vasut
1d8c939391 arm: socfpga: spl: Remove custom linker script
Remove the custom SPL linker script, use the generic one instead.
The custom script doesn't bring in anything new and is only burden
to maintain.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:08 +02:00
Marek Vasut
6473054a12 arm: socfpga: spl: Merge spl_board_init() into board_init_f()
The code in spl_board_init() should have been in board_init_f()
from the beginning, since it is code which configures system and
then starts DRAM. Thus, it cannot be in spl_board_init(), which
is called from board_init_r() , which already expects a working
DRAM.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:07 +02:00
Marek Vasut
bd65fe35ff arm: socfpga: spl: Add missing reset logic
Make sure that all the peripherals are correctly reset and then
brought out of reset in the SPL. Not going through proper reset
cycle might leave the IP blocks in inconsistent state.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:07 +02:00
Marek Vasut
232fcc6e9d arm: socfpga: spl: Configure SCU and NIC-301 early
Configure the ARM SCU and NIC301 very early. The ARM SCU SNSAC register
must be configured, so we can access all peripherals. The NIC-301 must
be configured so that the BootROM is not mapped into the SDRAM address
space.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:07 +02:00
Marek Vasut
4a0080d985 arm: socfpga: spl: Toggle warm reset config I/O bit
Synchronise the SPL behavior with the original Altera code and
toggle the Warm Reset Config I/O bit accordingly.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:07 +02:00
Marek Vasut
2d779b39b4 arm: socfpga: system: Clean up pinmux_config.c
Implement new accessor, sysmgr_get_pinmux_table(), used to obtain pinmux
table and it's size from the QTS-generated pinmux_config.c. The target
here is again to get rid of poluting global namespace by including the
pinmux_config.h into it.

Furthermore, the pinmux_config.h declares some CONFIG_HPS_* macros,
which are explicitly useless to us in U-Boot. Instead, U-Boot does
use DT to detect exactly these configuration options. This patch
makes sure that while this QTS-generated file can stay in the tree,
these obscure macros do not ooze into the namespace anymore.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:07 +02:00
Marek Vasut
40687b4f46 arm: socfpga: system: Rework sysmgr_enable_warmrstcfgio()
Rework sysmgr_enable_warmrstcfgio() into sysmgr_config_warmrstcfgio(),
which allows both enabling and disabling the warm reset config I/O
functionality.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:07 +02:00
Marek Vasut
575d741516 arm: socfpga: scan: Zap iocsr_scan_chain*_table()
Introduce accessor iocsr_get_config_table() for retrieving IOCSR config
tables. This patch is again trimming down the namespace polution.

The IOCSR config tables are used only by scan manager, they are generated
by qts and are board specific. Before this patch, the approach to use
these tables in scan manager was to define an extern variable to silence
the compiler and compile board-specific iocsr_config.c into U-Boot which
defined those extern variables. Furthermore, since these are tables and
the scan manager needs to know the size of those tables, iocsr_config.h
is included build-wide.

This patch wraps all this into a single accessor which takes the scan
chain ID and returns pointer to the table and it's size. All this is
wrapped in wrap_iocsr_config.c board-specific file. The file includes
the iocsr_config.c (!) to access the original tables and transitively
iocsr_config.h . It is thus no longer necessary to include iocsr_config.h
build-wide and the namespace polution is trimmed some more.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:07 +02:00
Marek Vasut
03a92b215f arm: socfpga: scan: Zap redundant params in scan_mgr_io_scan_chain_prg()
It is sufficient to pass in the scan chain ID into the function to determine
the remaining two parameters, so drop those params and determine them locally
in the function. The big-ish switch in the function is temporary and will be
replaced by a proper function call in subsequent patch.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:07 +02:00
Marek Vasut
2df7b2aadf arm: socfpga: scan: Staticize scan_mgr_io_scan_chain_prg()
This function is never used outside of scan_manager.c , so make it static.
Zap the prototype in scan_manager.h and move the documentation above the
function. Make the documentation kerneldoc compliant.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:07 +02:00
Marek Vasut
93b4abd3a2 arm: socfpga: clock: Clean up pll_config.h
Extract the clock configuration horribleness caused by pll_config.h in
the following manner.

First of all, introduce a few new accessors which return values of
various clocks used in clock_manager.c and use them in clock_manager.c .
These accessors replace those few macros which came from pll_config.h
originally. Also introduce an accessor which returns the struct cm_config
default configuration for the clock manager used in SPL.

The accessors are implemented in a board-specific wrap_pll_config.c
file, whose sole purpose is to include the qts-generated pll_config.h
and provide only the necessary values to the clock manager.

The purpose of this design is to limit the scope of inclusion for the
pll_config.h , which thus far was included build-wide and poluted the
namespace. With this change, the inclusion is limited to just the new
wrap_pll_config.c file, which in turn provides three simple functions
for the clock_manager.c to use.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
163ee7d9d2 arm: socfpga: clock: Get rid of cm_config_t typedef
Get rid of this cryptic typedef and replace it with explicit struct cm_config.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00