Commit graph

101 commits

Author SHA1 Message Date
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
Marek Vasut
34122eb262 arm: socfpga: reset: Add SDMMC, QSPI and DMA defines
Add SDMMC, QSPI and DMA reset defines. These are needed by SPL
so that we can boot from SD card and QSPI.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
3191611a05 arm: socfpga: reset: Add function to reset add peripherals
Add socfpga_per_reset_all() function to reset all peripherals
but the L4 watchdog. This is needed in the SPL.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
292260ca21 arm: socfpga: reset: Repair bridge reset handling
The current bridge reset code, which de-asserted the bridge reset,
was activelly polling whether the FPGA is programmed and ready and
in case it was (!), the code called hang(). This makes no sense at
all. Repair it such that the code instead checks whether the FPGA
is programmed, but without any polling involved, and only if it is
programmed, it de-asserts the reset.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
a71df7aa4f arm: socfpga: reset: Replace ad-hoc reset functions
Replace all those ad-hoc reset functions, which were all copies
of the same invocation of clrbits_le32() anyway, with one single
unified function, socfpga_per_reset(), with necessary parameters.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
bdfc2ef64a arm: socfpga: reset: Implement unified function to toggle reset
Implement function socfpga_per_reset(), which allows asserting or
de-asserting reset of each reset manager peripheral in a unified
manner. Use this function throughout reset manager.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
1115cd2de7 arm: socfpga: reset: Start reworking the SoCFPGA reset manager
Implement macro SOCFPGA_RESET(name), which produces an abstract
reset number. Implement macros which allow extracting the reset
offset in permodrstN register and which permodrstN register the
reset is located in from this abstract reset number. Use these
macros throughout the reset manager.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
8d009e4542 arm: socfpga: reset: Add missing reset manager regs
Define two missing reset manager registers, which are in the
SoCFPGA CV datasheet.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
42f7ebb82b ddr: altera: Move struct sdram_prot_rule prototype
Move the structure prototype from sdram.h header file into sdram.c
source file, since it is used only there and for local purpose only.
There is no point in having it global.

While at this move, fix the data types in the structure from uintNN_t
to uNN and fix the coding style a bit.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:05 +02:00
Marek Vasut
d04941cf33 arm: socfpga: Move sdram_config.h to board dir
This file is absolutelly positively board specific, so move it
into the correct place.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:05 +02:00
Dinh Nguyen
9bbd2132e3 driver/ddr/altera: Add DDR driver for Altera's SDRAM controller
This patch enables the SDRAM controller that is used on Altera's SoCFPGA
family. This patch configures the SDRAM controller based on a configuration
file that is generated from the Quartus tool, sdram_config.h.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-08-08 14:14:05 +02:00
Joe Hershberger
a26cd04920 arch: Make board selection choices optional
By making the board selections optional, every defconfig will include
the board selection when running savedefconfig so if a new board is
added to the top of the list of choices the former top's defconfig will
still be correct.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Cc: Tom Rini <trini@konsulko.com>
2015-05-12 18:10:02 -04:00
Masahiro Yamada
30088b0997 ARM: socfpga: move SoC headers to mach-socfpga/include/mach
Move headers to mach-socfpga as well.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-05-07 05:21:15 +02:00
Masahiro Yamada
05a217212b ARM: socfpga: move SoC sources to mach-socfpga
Our recent trend is to collect SoC files into arch/arm/mach-(SOC).

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-05-07 05:21:12 +02:00
Masahiro Yamada
7865f4b0b6 ARM: socfpga: move board select into mach-socfpga/Kconfig
Switch to a more standard way of board select; put the SoC select
into arch/arm/Kconfig and move the board select menu under
arch/arm/mach-socfpga/Kconfig.

Also, consolidate SYS_BOARD, SYS_VENDOR, SYS_SOC, SYS_CONFIG_NAME.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-05-07 05:21:08 +02:00