Commit graph

73 commits

Author SHA1 Message Date
Maxime Ripard
343ff16106 sunxi: Enable MMC new mode for A83T
The eMMC controller for the A83T uses the new operating mode. Enable it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-08-28 22:36:48 +05:30
Tom Rini
ceff355a5f Merge git://git.denx.de/u-boot-sunxi
Update A20-OLinuXino-Lime2-eMMC_defconfig to include CONFIG_SCSI

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-16 18:12:40 -04:00
Simon Glass
c1c3fe2307 env: Convert CONFIG_ENV_IS_IN... to a choice
At present we support multiple environment drivers but there is not way to
select between them at run time. Also settings related to the position and
size of the environment area are global (i.e. apply to all locations).

Until these limitations are removed we cannot really support more than one
environment location. Adjust the location to be a choice so that only one
can be selected. By default the environment is 'nowhere', meaning that the
environment exists only in memory and cannot be saved.

Also expand the help for the 'nowhere' option and move it to the top since
it is the default.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Move all of the imply logic to default X if Y so it works again]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-15 20:50:01 -04:00
Philipp Tomsich
b529993e02 spl: add hierarchical defaults for SPL_LDSCRIPT
With SPL_LDSCRIPT moved to Kconfig (and this being a 'string' config
node), all the lingering definitions in header files will cause
warnings/errors due to the redefinition of the configuration item.

As we don't want to pollute the defconfig files (and values should
usually be identical for entire architectures), the defaults are moved
into Kconfig.  Kconfig will always pick the first default that
matches, so please keep these values at the end of each file (to allow
any board-specific Kconfig, which will be included earlier) to
override with an unconditional default setting.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-08-13 17:12:37 +02:00
Icenowy Zheng
e37a1b17e7 sunxi: switch PRCM to non-secure on H3/H5 SoCs
The PRCM of H3/H5 SoCs have a secure/non-secure switch, which controls
the access to some clock/power related registers in PRCM.

Current Linux kernel will access the CPUS (AR100) clock in the PRCM
block, so the PRCM should be switched to non-secure.

Add code to switch the PRCM to non-secure.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-08-11 15:49:39 +05:30
Simon Glass
2be296538e Convert CONFIG_ENV_IS_IN_MMC/NAND/UBI and NOWHERE to Kconfig
This converts the following to Kconfig:
   CONFIG_ENV_IS_IN_MMC
   CONFIG_ENV_IS_IN_NAND
   CONFIG_ENV_IS_IN_UBI
   CONFIG_ENV_IS_NOWHERE

In fact this already exists for sunxi as a 'choice' config. However not
all the choices are available in Kconfig yet so we cannot use that. It
would lead to more than one option being set.

In addition, one purpose of this series is to allow the environment to be
stored in more than one place. So the existing choice is converted to a
normal config allowing each option to be set independently.

There are not many opportunities for Kconfig updates to reduce the size of
this patch. This was tested with

   ./tools/moveconfig.py -i CONFIG_ENV_IS_IN_MMC

And then manual updates.  This is because for CHAIN_OF_TRUST boards they
can only have ENV_IS_NOWHERE set, so we enforce that via Kconfig logic
now.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-07-25 21:08:01 -04:00
Icenowy Zheng
ec4670a137 sunxi: add LPDDR3 timing from stock boot0
As we added LPDDR3 support in the former patch, we need a set of timing
info to really enable it.

Add the timing info used by stock boot0.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
72cc987002 sunxi: add LPDDR3 DRAM type support for DesignWare-like DRAM controller
Some A64 boards (SoPine and Pinebook production batch) use LPDDR3 DRAM
chips.

Add support for LPDDR3 DRAM in the DesignWare-like DRAM controller code.

Real LPDDR3 chips' support is not added yet in this commit.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
7d06e59f73 sunxi: enable DRAM initialization and SPL for V3s SoC
As we have already support for the DesignWare DRAM controller and the
integrated DDR2 chip of V3s, let's enable the SPL support for V3s.

This patch also contains the default DRAM configuration for V3s.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
3ec0698b8a sunxi: add support for V3s DRAM controller
Allwinner V3s features a DRAM controller like the on in H3, but with a
DDR2 DRAM.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
67337e68a5 sunxi: add support for the DDR2 in V3s SoC
Allwinner V3s SoC features a co-packaged DDR2 DRAM chip, which needs its
timing param.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
176868bc65 sunxi: enable dual rank detection in DesignWare-like DRAM code
The DesignWare-like DRAM code used to set the controller defaultly to
single rank mode, which makes it not able to detect the second rank.

Set the default value to dual rank, thus the rank detection code can
work and finally the rank setting will be the correct value.

Currently we know little about the dual-rank on R40, and the usage
of A15 address line seems to be breaking dual-rank support. The only R40
board currently available (Sinovoip Banana Pi M2 Ultra) uses A15 rather
than dual-rank, thus we cannot do research for it. So dual rank detection
is temporarily disabled on R40.

This change is tested on a Orange Pi One (H3, single rank), a Pine64+
2GiB version (A64, single rank) , a Pinebook early prototype with DDR3
(A64, dual rank) and a SoPine with some LPDDR3 patch (A64, dual CS pins
on one chip).

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
f6457ce578 sunxi: Add selective DRAM type and timing
DRAM chip varies, and one code cannot satisfy all DRAMs.

Add options to select a timing set.

Currently only DDR3-1333 (the original set) is added into it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
66b12526f0 sunxi: add bank detection code to H3 DRAM initialization code
Some DDR2 DRAM have only four banks, not eight.

Add code to detect this situation.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
87098d701d sunxi: add option for 16-bit DW DRAM controller
Some Allwinner SoCs features a DesignWare-like controller with only 16
bit bus width.

Add support for them.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
f43a009959 sunxi: Rename bus-width related macros in H3 DRAM code
The DesignWare DRAM controller used by H3 and newer SoCs use a bit to
identify whether the DRAM is half-width.

As H3 itself come with 32-bit DRAM, the two modes of the bit used to be
named "MCTL_CR_32BIT" and "MCTL_CR_16BIT", but for SoCs with 16-bit DRAM
they're really 8-bit and 16-bit.

Rename the bit's macro, and also rename the variable name in
dram_sun8i_h3.c.

This commit do not add 16-bit DRAM controller support, but the support
will be introduced in next commit.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
9934aba427 sunxi: makes an invisible option for H3-like DRAM controllers
Allwinner SoCs after H3 (e.g. A64, H5, R40, V3s) uses a H3-like
DesignWare DRAM controller, which do not have official free DRAM
initialization code, but can use modified dram_sun8i_h3.c.

Add a invisible option for easier DRAM initialization code reuse.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Andre Przywara
d29adf8eef sunxi: enable automatic FIT build for 64-bit SoCs
The Allwinner SoCs with 64-bit cores use an ARM Trusted Firmware binary,
which needs to be loaded alongside U-Boot proper.
Set the respective Kconfig options to let them select this feature and
also automatically build the FIT image.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[Rename Kconfig path to arch/arm/mach-sunxi/Kconfig]
Signed-off-by: Jagan Teki <jagan@openedev.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17 23:23:25 +05:30
Icenowy Zheng
9946631a0f sunxi: add clock configuration of R40 sata
R40 has a similar SATA controller with the ones on A10/A20, but with a
reset line added (like other peripherals on sun6i+), and two extra VDD
pins added (1.2v and 2.5v).

Add clock configuration of R40 SATA.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-02 09:21:09 +02:00
Masahiro Yamada
af83a604b3 ARM: sunxi: use imply instead of bare default y in Kconfig
Fix annoying config redefines in SoC/board level Kconfig.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-02 09:20:42 +02:00
Masahiro Yamada
3abfd887e8 ARM: sunxi: move board/sunxi/Kconfig to arch/arm/mach-sunxi/Kconfig
For the consistent location of SoC-level Kconfig.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-02 09:20:30 +02:00
Jernej Skrabec
a8f01ccff2 sunxi: i2c: Add support for DM I2C
This commit adds support for DM I2C on sunxi platform. It can coexist
with old style sunxi I2C driver, because it is still used in SPL and
by some SoCs.

Because sunxi platform doesn't yet support DM clk, reset and pinctrl
driver, workaround is needed to enable clocks and set resets and
pinctrls. This is done by calling i2c_init_board() in board_init().
This means that CONFIG_I2Cx_ENABLE options needs to be correctly set
in order to use needed I2C controller.

Commit is based on the previous patch made by Philipp Tomsich

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-28 09:19:03 +02:00
Icenowy Zheng
c199489f17 sunxi: add basic V3s support
Basic U-Boot support is now present for V3s.

Some memory addresses are changed specially for V3s, as the original
address map cannot fit into a so small DRAM.

As the DRAM controller code needs a big refactor, the SPL support is
disabled in this version.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-21 09:23:17 +02:00
Jernej Skrabec
1ae5def6be sunxi: Add clock support for DE2/HDMI/TCON on newer SoCs
This is needed for HDMI, which will be added later.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20 13:37:31 +02:00
Chen-Yu Tsai
8201188cf9 sunxi: Use H3/A64 DRAM initialization code for R40
The R40 seems to have a variant of the memory controller found in
the H3 and A64 SoCs. Adapt the code for use on the R40. The changes
are based on released DRAM code and comparing register dumps from
boot0.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20 13:30:01 +02:00
Chen-Yu Tsai
328ce7fd50 sunxi: Set PLL lock enable bits for R40
According to the BSP released by Banana Pi, the R40 (sun8iw11p1) has
an extra "PLL lock control" register in the CCU, which controls whether
the individual PLL lock status bits in each PLL's control register work
or not.

This patch enables it for all the PLLs.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20 13:30:01 +02:00
Chen-Yu Tsai
6c7ae2bfc9 sunxi: Fix watchdog reset function for R40
The watchdog found on the R40 SoC is the older variant found on the A20.
Add the proper "#if defines" to make it work.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20 13:30:00 +02:00
Chen-Yu Tsai
409677ec17 sunxi: Enable AXP221s in I2C mode with the R40 SoC
The R40 SoC uses the AXP221s in I2C mode to supply power.

Some regulator's common usages have changed, and also the recommended
voltage for existing usages have changed. Update the defaults to match.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20 13:30:00 +02:00
Chen-Yu Tsai
379febac5a sunxi: Add initial support for R40
The R40 is the successor to the A20. It is a hybrid of the A20, A33
and the H3.

The R40's PIO controller is compatible with the A20,
Reuse the A20 UART and I2C muxing code by adding the R40's macro.

The display pipeline is the newer DE 2.0 variant.
Block enabling video on R40 for now.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20 13:30:00 +02:00
Andre Przywara
997bde6038 sunxi: introduce Allwinner H5 config option
The Allwinner H5 Soc is bascially an H3 with high SRAM and ARMv8 cores.
As the peripherals and the pinmuxing are almost identical, we piggy
back on the shared MACH_SUN8I_H3_H5 config symbol.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-04-05 15:03:17 +05:30
Andre Przywara
7b82a229e5 sunxi: prepare for sharing MACH_SUN8I_H3 config symbol
The Allwinner H5 is very close to the H3 SoC, but has ARMv8 cores.
To allow sharing the clocks, GPIO and driver code easily, create an
architecture agnostic MACH_SUNXI_H3_H5 Kconfig symbol.
Rename the existing symbol to MACH_SUNXI_H3_H5 where code is shared and
let it be selected by a new shared Kconfig option.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-05 15:03:17 +05:30
Andre Przywara
170817a497 sunxi: DRAM: add Allwinner H5 support
The DRAM controller in the Allwinner H5 SoC is again very similar to
the one in the H3 and A64.
Based on the existing socid parameter, add support for this controller
by reusing the bulk of the code and only deviating where needed.
These new bits set or cleared here and there have been mostly found by
looking at DRAM register dumps after using the H5 boot0 and comparing
them to what we set in the code. So for now it's mostly unclear what
those bits actually mean - hence the missing names and comments.
Also add the delay line parameters taken from the boot0 and libdram
disassembly.
Register setup differences between H5 and H3 are courtesy of Jens Kuske.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-05 15:03:17 +05:30
Andre Przywara
ce6912e128 sunxi: provide ARMv8 mem_map for every ARM64 board
Every armv8 board needs the memory map, so change the #ifdef to
ARM64 to avoid enumerating every single board or SoC.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-04-05 15:03:17 +05:30
Andre Przywara
85db5831ad sunxi: simplify ACTLR.SMP bit set #ifdef
Instead of enumerating all SoC families that need that bit set, let's
just express this more clearly: The SMP bits needs to be set on
SMP capable ARMv7 CPUs. It's much easier in Kconfig to express it the
other way round, so we use ! CPU_IS_UP and ! ARM64.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-05 15:03:17 +05:30
Andre Przywara
1afd0f6f17 sunxi: fix ACTLR.SMP assembly routine
If we take the liberty to use register r0 to perform our bit set, we
should be nice enough to tell the compiler about it.
Add r0 to the clobber list to avoid potential mayhem.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jagan Teki <jagan@openedev.com>
2017-04-05 15:03:17 +05:30
Andre Przywara
eb77f5c9f6 sunxi: A64: enable SPL
Now that the SPL is ready to be compiled in AArch64 and the DRAM
init code is ready, enable SPL support for the A64 SoC and in the
Pine64 defconfig.
For now we keep the boot0 header in the U-Boot proper, as this allows
to still use boot0 as an SPL replacement without hurting the SPL use
case.
We disable FEL support for now by making its compilation conditional
and disabling it for ARM64, as the code isn't ready yet.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:43 +01:00
Andre Przywara
3a2175696d sunxi: DRAM: fix H3 DRAM size display on aarch64
Fix the output of the DRAM size on AArch64 SPLs.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:43 +01:00
Andre Przywara
ed25486215 sunxi: H3/A64: fix non-ODT setting
According to Jens disabling the on-die-termination should set bit 5,
not bit 1 in the respective register. Fix this.

Reported-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:43 +01:00
Jens Kuske
1bc464be1f sunxi: A64: use H3 DRAM initialization code for A64 as well
The A64 DRAM controller is very similar to the H3 one,
so the code can be reused with some small changes.
This refactoring does not change the code size for the existing H3 part.

[Andre: rework from #ifdefs to using socid parameters in static
        functions, minor fixes, merging in fixes from Jens]

Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:42 +01:00
Philipp Tomsich
b55615908b sunxi: clocks: Use the correct pattern register for PLL11
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:42 +01:00
Jens Kuske
e013bead30 sunxi: H3: add DRAM controller single bit delay support
So far the DRAM driver for the H3 SoC (and apparently boot0/libdram as
well) only applied coarse delay line settings, with one delay value for
all the data lines in each byte lane and one value for the control lines.

Instead of setting the delays for whole bytes only allow setting it for
each individual bit. Also add support for address/command lane delays.

For the purpose of this patch the rules for the existing coarse settings
were just applied to the new scheme, so the actual register writes don't
change for the H3. Other SoCs will utilize this feature later properly.

With a stock GCC 5.3.0 this increases the dram_sun8i_h3.o code size from
2296 to 2344 Bytes.

[Andre: move delay parameters into macros to ease later sharing, use
	defines for numbers of delay registers, extend commit message]

Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:42 +01:00
Jens Kuske
0eb6f9fd81 sunxi: H3: add and rename some DRAM contoller registers
The IOCR registers got renamed to BDLR to match the public
documentation of similar controllers.

Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:42 +01:00
Philipp Tomsich
dcb50090d7 sunxi: H3: Rework MBUS priority setup
So far the MBUS priority setup was done by writing "magic" values taken
from a DRAM controller register dump after a boot0 run.
By peeking at the Linux (sic!) MBUS driver [1] from the Allwinner BSP
kernel, we learned more about the actual meaning of those bits.
Add macros and refactor the setup function to make the MBUS setup much
more readable and meaningful.
The actual values used now are a transformation of the values used
before, which are assembled by the new code to result in the same register
writes. So this rework does not change any settings, also the code size
stays the same.

The respective source files in the BSP kernel had a proper GPL header,
so lifting this code and information into U-Boot is legal.

[Andre: provide a convenience macro to fit definitions on one line]

[1] https://github.com/longsleep/linux-pine64/blob/lichee-dev-v3.10.65/drivers/bus/sunxi_mbus.c

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:42 +01:00
Andre Przywara
83843c9b3a sunxi: A64: do an RMR switch if started in AArch32 mode
The Allwinner A64 SoC starts execution in AArch32 mode, and both
the boot ROM and Allwinner's boot0 keep running in this mode.
So U-Boot gets entered in 32-bit, although we want it to run in AArch64.

By using a "magic" instruction, which happens to be an almost-NOP in
AArch64 and a branch in AArch32, we differentiate between being
entered in 64-bit or 32-bit mode.
If in 64-bit mode, we proceed with the branch to reset, but in 32-bit
mode we trigger an RMR write to bring the core into AArch64/EL3 and
re-enter U-Boot at CONFIG_SYS_TEXT_BASE.
This allows a 64-bit U-Boot to be both entered in 32 and 64-bit mode,
so we can use the same start code for the SPL and the U-Boot proper.

We use the existing custom header (boot0.h) functionality, but restrict
the existing boot0 header reservation to the non-SPL build now. A SPL
wouldn't need such header anyway. This allows to have both options
defined and lets us use one for the SPL and the other for U-Boot proper.

Also add arch/arm/mach-sunxi/rmr_switch.S, which contains the original
ARM assembly code and instructions how to re-generate the encoded
version.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:42 +01:00
Andre Przywara
2865433a46 sun6i: Restrict some register initialization to Allwinner A31 SoC
These days many Allwinner SoCs use clock_sun6i.c, although out of them
only the (original sun6i) A31 has a second MBUS clock register.
Also the requirement for setting up the PRCM PLL_CTLR1 register to provide
the proper voltage seems to be a property of older SoCs only as well.

Restrict the MBUS initialization to this SoC only to avoid writing bogus
values to (undefined) registers in other chips.
I can only verify that the PLL voltage setup is not needed for H3 and
A64, so for now we only spare those two SoCs.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-01-04 16:37:40 +01:00
Icenowy Zheng
65d2d4f239 sunxi: fix SID read on H3
H3 SID controller has some bug, which makes the initial SID value at
SUNXI_SID_BASE wrong when boot.

Change the SID retrieve code to call the SID Controller directly on H3,
which can get the correct value, and also fix the SID value at
SUNXI_SID_BASE, so that it can be used by further operations.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2016-12-20 16:08:50 +01:00
Simon Glass
40ecf52495 spl: sunxi: Drop spl_board_announce_boot_device()
This function is not used anymore. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-12-09 08:40:16 -05:00
Simon Glass
ebc4ef61d7 spl: Add a name to the SPL load-image methods
It is useful to name each method so that we can print out this name when
using the method. Currently this happens using a separate function. In
preparation for unifying this, add a name to each method.

The name is only available if we have libcommon support (i.e can use
printf()).

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-12-09 08:40:13 -05:00
Philipp Tomsich
7962a8d5a4 sunxi: add initial clock setup for sun9i for SPL
This is a cleaned up version set_pll() from Allwinner's boot0 source
(bootloader/basic_loader/bsp/bsp_for_a80/common/common.c).

[wens@csie.org: Added commit message; style cleanup]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-10-30 11:38:04 +01:00
Philipp Tomsich
f28bad13b4 sunxi: Enable SMP mode for the boot CPU on sun9i (A80)
Since the A80 has many cores which we intend to use in SMP fashion,
we should set the SMP bit for the boot CPU.

[wens@csie.org: Added commit message]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-10-30 11:38:04 +01:00