Commit Graph

18538 Commits

Author SHA1 Message Date
Tom Rini
2fa581ba91 Merge git://git.denx.de/u-boot-sh
- Enable -ffunction-sections / -fdata-sections --gc-sections to SH
- RCar Gen3 updates
2020-05-21 08:26:40 -04:00
Tom Rini
b0b13f4114 Merge https://gitlab.denx.de/u-boot/custodians/u-boot-fsl-qoriq
- Add DM_ETH support for lx2160aqds, ls2080aqds, ls1088aqds
- QSI related fixes on ls1012a, ls2080a, ls1046a, ls1088a, ls1043a based
  platforms
- Bug-fixes/updtaes related to ls1046afrwy, fsl-mc, msi-map property
2020-05-20 08:46:56 -04:00
Marek Vasut
56f01746ab sh: Enable ffunction-sections and fdata-sections
Enable these two options to let compiler eliminate unused code.
On R2Dplus, this results in considerable amount of saved space:

      text    data     bss     dec     hex filename
  - 266580   13196   39076  318852   4dd84 u-boot
  + 220214   12797   38745  271756   4258c u-boot

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Tom Rini <trini@konsulko.com>
2020-05-20 13:20:25 +02:00
Marek Vasut
03578d940d ARM: dts: rmobile: Enable eMMC DDR52 modes on Gen3 Salvator-X(S),ULCB,Ebisu
Enable DDR52 modes, since the SD core supports correct switching now.
For completeness, list HS200 modes, however those were already enabled.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2020-05-20 13:20:25 +02:00
Marek Vasut
5d17a1691b ARM: dts: rmobile: Reserve space in R-Car Gen3 DTs
Reserve 4 kiB of space in R-Car Gen3 DTs when those DTs are compiled
to permit patching in OpTee-OS /firmware node, /reserved-memory node
and possibly also additional /memory@ nodes.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
2020-05-20 13:20:19 +02:00
Heiko Schocher
d934b43a02 mpc83xx, abb: remove suvd3 board
the mpc83xxx suvd3 variant is not longer used, so
remove it.

Signed-off-by: Holger Brunck <holger.brunck@ch.abb.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-05-19 14:01:47 -04:00
Rasmus Villemoes
e2e3ea8916 mpc83xx: remove redundant MPC83xx_RESET #define
This macro is only used (tested for existence) in mpc83xx.c, which
unconditionally includes mpc83xx.h where it is unconditionally
defined. Removing it makes the remaining code easier to read.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-05-19 14:01:47 -04:00
Ioana Ciornei
020ed9c666 arm: dts: ls2080aqds: add CONFIG_MULTI_DTB_FIT support
Add support for selecting the appropriate DTS file depending on the
SERDES protocol used.

The fsl-ls2080a-qds DTS will be used by default if there isn't a DTS
file specifically made for the current SERDES protocol.

This patch adds the necessary DPMAC nodes (DPMAC 1-8) for
protocol 42 (0x2A) on SD#1.

Also, in case CONFIG_DM_ETH and CONFIG_MULTI_DTB_FIT are enabled
implement the board_fit_config_name_match() function in order to choose
the appropriate DTS.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-05-19 09:22:08 +05:30
Ioana Ciornei
b62526282a arm: dts: ls1088aqds: add CONFIG_MULTI_DTB_FIT support
Add support for selecting the appropriate DTS file depending on the
SERDES protocol used. The fsl-ls2088a-qds DTS will be used by default if
there isn't a DTS file specifically made for the current SERDES
protocol.

This patch adds support for the on-board ports (DPMAC 1,2 and 4,5) found
on the SERDES protocols 21(0x15) and 29(0x1d) for SD#1.

On the LS1088AQDS board EMDIO1 is used with two onboard RGMII PHYs
(Realtek RTL8211FD-CG), as well as 2 input/output connectors for
mezzanine cards. Configuration signals from the Qixis FPGA control the
routing of the external MDIOs.

Register 0x54 of the Qixis FPGA controls the routing of the EMDIO1 one
of the 2 IO slots. As a consequence, a new node is added to
describe register 0x54 as a MDIO mux controlled with child nodes
describing all the IO slots as MDIO buses.

Also, in case CONFIG_DM_ETH and CONFIG_MULTI_DTB_FIT are enabled
implement the board_fit_config_name_match() function in order to choose
the appropriate DTS.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-05-19 09:22:08 +05:30
Ioana Ciornei
74f04490f2 arm: dts: lx2160aqds: add nodes describing possible mezzanine cards
Add device trees describing possible uses of mezzanine cards depending
on the SERDES protocol employed.

This patch adds DPAA2 networking support for the following protocols on
each SERDES block:
 * SD #1: 3, 7, 19, 20
 * SD #2: 11

Each SERDES block has a different device tree file per protocol
supported, where the IO SLOTs used are enabled and PHYs located on the
mezzanine cards are described. Also, dpmac nodes are edited and their
associated phy-connection-type and phy-handle are added.

Top DTS files are also added for each combination of protocol on the 3
SERDES blocks.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Razvan Ionut Cirjan <razvanionut.cirjan@nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-05-19 09:22:07 +05:30
Ioana Ciornei
3695e4ccfd arm: dts: lx2160aqds: add MDIO slots
The LX2160A processor has two external MDIO interfaces, described in the
DTS as emdio1 and emdio2.

On the LX2160AQDS board EMDIO1 is used with two onboard RGMII PHYs
(Realtek RTL8211FD-CG), as well as eight input/output connectors for
mezzanine cards. Configuration signals from the Qixis FPGA control the
routing of the external MDIOs.

Register 0x54 of the Qixis FPGA controls the routing of the EMDIO1 one
of the 8 IO slots. As a consequence, a new node is added to
describe register 0x54 as a MDIO mux controlled with child nodes
describing all the IO slots as MDIO buses.

Also, DPMAC 17 and 18 are updated to reference the on-board PHYs.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Razvan Ionut Cirjan <razvanionut.cirjan@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-05-19 09:22:07 +05:30
Ioana Ciornei
237b262009 arm: dts: lx2160a: add noted for dpmacs 1, 2, 5-6
Add nodes for DPMACs 1, 2 and 5-6 which were missing from the
description. These will be later used on the LX2160AQDS specific DTS.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Razvan Ionut Cirjan <razvanionut.cirjan@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-05-19 09:22:07 +05:30
Kuldeep Singh
b480bcca80 treewide: Update fsl qspi node dt properties as per spi-mem driver
According to new qspi driver, some properties like "bus-num, num-cs,
big-endian" are no longer used. Device endiannes can be determined from
device-type data in driver.

Now use board specific compatibles, generic node names and specific
labels to align with linux device-tree properties.

Also consolidate spi-max-frequency to 50Mhz treewide.

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-05-19 09:22:05 +05:30
Kuldeep Singh
c93ad777b8 treewide: Remove unused FSL QSPI config options for Layerscape platforms
Some of these options are not used by the driver anymore and some of
them are obsolete as the information is gathered from the dt. Also
consolidating defines in common headers.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-05-19 09:22:05 +05:30
Simon Glass
cd93d625fd common: Drop linux/bitops.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
f09f1ecbe7 Use __ASSEMBLY__ as the assembly macros
Some places use __ASSEMBLER__ instead which does not work since the
Makefile does not define it. Fix them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
c05ed00afb common: Drop linux/delay.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
07e1114671 Fix some checkpatch warnings in calls to udelay()
Fix up some incorrect code style in calls to functions in the linux/time.h
header, mostly udelay().

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
1af3c7f422 common: Drop linux/stringify.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
eb41d8a1be common: Drop linux/bug.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
8ad92118dc common: Drop asm_offsets.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
25a5818ff8 common: Drop asm/ptrace.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
f7ae49fc4f common: Drop log.h from common header
Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:18 -04:00
Simon Glass
3c7dded8e1 Fix some checkpatch warnings in calls to debug()
Fix up some incorrect code style in calls to functions in the log.h
header, mostly debug().

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 18:36:57 -04:00
Simon Glass
0914011310 command: Remove the cmd_tbl_t typedef
We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.

Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.

This requires quite a few header-file additions.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 18:36:55 -04:00
Simon Glass
691d719db7 common: Drop init.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
4d72caa5b9 common: Drop image.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
52f2423804 common: Drop bootstage.h from common header
Move this fairly uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
b67eefdb6e bootstage: Use BOOTSTAGE instead of BOOTSTATE
Some of the enum members are wrong. Fix them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
e6f6f9e648 common: Drop part.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
0528979fa7 part: Drop disk_partition_t typedef
We should not be using typedefs and these make it harder to use
forward declarations (to reduce header file inclusions). Drop the typedef.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
90526e9fba common: Drop net.h from common header
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.

Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:31 -04:00
Simon Glass
c3dc39a2f8 arm: Don't include common.h in header files
It is bad practice to include common.h in other header files since it can
bring in any number of superfluous definitions. It implies that some C
files don't include it and thus may be missing CONFIG options that are set
up by that file. The C files should include these themselves.

Update some header files in arch/arm to drop this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 14:54:24 -04:00
Simon Glass
b79fdc7697 common: Drop flash.h from common header
Move this uncommon header out of the common header.

Fix up some style problems in flash.h while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 14:53:28 -04:00
Simon Glass
a595a0e910 flash: Tidy up coding style for flash functions
Some functions use the wrong code style and generate checkpatch errors.
Fix these.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 14:53:28 -04:00
Ilias Apalodimas
7f44c7e281 dts: nxp2160ardb: add op-tee node
A defconfig is added on lx2160ardb which allows UEFI variable management
via OP-TEE. Enable the the node in the relevant DTS file.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2020-05-17 21:59:53 +02:00
Michael Walle
714497e327 efi_loader: round the memory area in efi_add_memory_map()
Virtually all callers of this function do the rounding on their own.
Some do it right, some don't. Instead of doing this in each caller,
do the rounding in efi_add_memory_map(). Change the size parameter
to bytes instead of pages and remove aligning and size calculation in
all callers.

There is no more need to make the original efi_add_memory_map() (which
takes pages as size) available outside the module. Thus rename it to
efi_add_memory_map_pg() and make it static to prevent further misuse
outside the module.

Signed-off-by: Michael Walle <michael@walle.cc>
Add missing comma in sunxi_display.c.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-05-17 21:59:53 +02:00
Samuel Holland
3988be5fd4 spl: Always define preloader_console_init
A large number of boards call preloader_console_init unconditionally.
Currently, they fail to build with CONFIG_SPL_SERIAL=n, because the
function is undefined in that case. To fix the build, always define
preloader_console_init, but make it no-op when CONFIG_SPL_SERIAL=n.

For the few boards that did check for CONFIG_SPL_SERIAL before calling
preloader_console_init, remove the checks, since the function can now
be called unconditionally.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-05-15 14:47:35 -04:00
Trevor Woerner
71f6354b0e rename symbol: CONFIG_STM32 -> CONFIG_ARCH_STM32
Have this symbol follow the pattern of all other such symbols.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-05-15 14:47:35 -04:00
Trevor Woerner
18138ab203 rename symbol: CONFIG_TEGRA -> CONFIG_ARCH_TEGRA
Have this symbol follow the pattern of all other such symbols.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-05-15 14:47:35 -04:00
Trevor Woerner
bb0fb4c0f4 rename symbol: CONFIG_KIRKWOOD -> CONFIG_ARCH_KIRKWOOD
Have this symbol follow the pattern of all other such symbols.
This patch also removes a TODO from the code.

Reviewed-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-05-15 14:47:35 -04:00
Trevor Woerner
b48f72a86b arm: orion5x: finish moving SoC to mach-orion5x
The SPL linker script had been left in arch/$(ARCH)/cpu/$(CPU)/$(SOC);
therefore move it to the already-established arch/$(ARCH)/mach-$(SOC)
location.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-05-15 14:47:35 -04:00
Trevor Woerner
b16a331697 rename symbol: CONFIG_ORION5X -> CONFIG_ARCH_ORION5X
Have this symbol follow the pattern of all other such symbols.
This patch removes a TODO from the code.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-05-15 14:47:35 -04:00
Trevor Woerner
9bffc54996 arch/arm/Makefile: sort machine names
The comment immediately above the block of machine directory names implored
users to keep the macro names sorted, but, alas, this is no longer the case.

Put the list of machine directory names back in alphanumerical order by
CONFIG_* macro name, as the comment asks. Sort all the symbols as though they
all followed the convention of having the string "ARCH_" in the middle of
their definitions.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-05-15 14:47:35 -04:00
Trevor Woerner
b3d9a8b185 arm: lpc32xx: move SoC to mach-lpc32xx
Following the example of most other SoCs in arch/$(ARCH)/cpu/$(CPU)/$(SOC)
move the lpc32xx code from arch/arm/cpu/arm926ejs/lpc32xx to
arch/arm/mach-lpc32xx.

Following the checklist from
commit 01f1445630 ("ARM: prepare for moving SoC sources into mach-*"):

    [1] move files from arch/arm/cpu/arm926ejs/lpc32xx to arch/arm/mach-lpx32xx
    [2] add machine entry to arch/arm/Makefile
    [3] remove "obj-y += ..." from arch/arm/cpu/arm926ejs/Makefile
    [4] fix the Kconfig file path in arch/arm/Kconfig
    [5] (no MAINTAINERS update)

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-05-15 14:47:35 -04:00
Tom Rini
e2b86e23ce - stm32mp1: migrate MTD and DFU configuration in Kconfig
- stm32mp1: add command stm32prog
 - stm32mp1: several board and arch updates
 - stm32mp1: activate data cache in SPL and before relocation
 - Many improvment for AV96 board and DHCOR SoM
   (add new defconfig, DDR3 coding on DHCOR SoM, split between board and SOM
    Synchronize DDR setttings on DH SoMs, setting for I2C EEPROM)
 - clk: stm32mp1: fix CK_MPU calculation
 - DT alignment of stm32mp1 device tree with Linux 5.7-rc2
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Merge tag 'u-boot-stm32-20200514' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm

- stm32mp1: migrate MTD and DFU configuration in Kconfig
- stm32mp1: add command stm32prog
- stm32mp1: several board and arch updates
- stm32mp1: activate data cache in SPL and before relocation
- Many improvment for AV96 board and DHCOR SoM
  (add new defconfig, DDR3 coding on DHCOR SoM, split between board and SOM
   Synchronize DDR setttings on DH SoMs, setting for I2C EEPROM)
- clk: stm32mp1: fix CK_MPU calculation
- DT alignment of stm32mp1 device tree with Linux 5.7-rc2
2020-05-14 08:44:06 -04:00
Tom Rini
fe16786149 - fix phy configuration for RPi4's bcmgenet
- sync RPi4's env size with other RPi configs
 - add kconfig option to reserver more pages in the EFI mem map
 - add support for SDMA which is used by RPi4
 - fix corner case boot bug for RPi3 32-bit
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Merge tag 'rpi-next-2020.07' of https://gitlab.denx.de/u-boot/custodians/u-boot-raspberrypi

- fix phy configuration for RPi4's bcmgenet
- sync RPi4's env size with other RPi configs
- add kconfig option to reserver more pages in the EFI mem map
- add support for SDMA which is used by RPi4
- fix corner case boot bug for RPi3 32-bit
2020-05-14 08:43:33 -04:00
Patrick Delaunay
1b28a5e2b0 ARM: dts: stm32mp1: DT alignment with Linux 5.7-rc2
DT alignment with Linux 5.7-rc2, including the kernel commits

431c89e6f323 ARM: dts: stm32: use correct vqmmc regu for eMMC on stm32mp1 ED1/EV1 boards
79e965053872 ARM: dts: stm32: add disable-wp property for SD-card on STM32MP1 boards
877db62ea516 ARM: dts: stm32: add cd-gpios properties for SD-cards on STM32MP1 boards
7519e95ba5f8 ARM: dts: stm32: Do clean up in stmpic nodes on stm32mp15 boards
f68e2dbc591a ARM: dts: stm32: Rename stmfx joystick pins on stm32mp157c-ev1
d6210da4f8bf ARM: dts: stm32: add cpu clock-frequency property on stm32mp15x
b65b6fc56925 ARM: dts: stm32: add wakeup-source in all I2C nodes of stm32mp157c
1c1cf5996cfb ARM: dts: stm32: add i2c4 sleep pinctrl on stm32mp157c-ed1
bef15fc0fad9 ARM: dts: stm32: add i2c2/i2c5 sleep pinctrl on stm32mp157c-ev1
b7fc0a87b9ac ARM: dts: stm32: add i2c4 sleep pinctrl on stm32mp15xx-dkx
a5e557655285 ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp15 DK boards
8bc631b650a6 ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1
fccd6a577bb3 ARM: dts: stm32: Correct stmfx node name on stm32mp157c-ev1 board
cc775a83db65 ARM: dts: stm32: add resets property on all DMA nodes on stm32mp151
c5fae093511b ARM: dts: stm32: enable USB OTG Dual Role on stm32mp157c-ev1
9879e2165758 ARM: dts: stm32: add USB OTG pinctrl to stm32mp15
82ac8a81f985 ARM: dts: stm32: add USB OTG full support on stm32mp151
8714b26e2863 ARM: dts: stm32: remove useless properties in stm32mp157a-avenger96 stmpic node
a7959919709e ARM: dts: stm32: Add UART8 pins A pinmux entry on stm32mp1
4d7c53a684da ARM: dts: stm32: Add USART3 pins A pinmux entry on stm32mp1
80ab128332ee ARM: dts: stm32: Add SAI2A pins B pinmux entry on stm32mp1
ab7f98c0c546 ARM: dts: stm32: Add Ethernet0 RMII pins A pinmux entry on stm32mp1

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-05-14 09:02:12 +02:00
Patrick Delaunay
dc7e5f190d arm: stm32mp: activate data cache on DDR in SPL
Activate cache on DDR to improve the accesses to DDR used by SPL:
- CONFIG_SPL_BSS_START_ADDR
- CONFIG_SYS_SPL_MALLOC_START

Cache is configured only when DDR is fully initialized,
to avoid speculative access and issue in get_ram_size().
Data cache is deactivated at the end of SPL, to flush the data cache
and the TLB.

Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-05-14 09:02:12 +02:00
Patrick Delaunay
7e8471cae5 arm: stm32mp: activate data cache in SPL and before relocation
Activate the data cache in SPL and in U-Boot before relocation.

In arch_cpu_init(), the function early_enable_caches() sets the early
TLB, early_tlb[] located .init section, and set cacheable:
- for SPL, all the SYSRAM
- for U-Boot, all the DDR

After relocation, the function enable_caches() (called by board_r)
reconfigures the MMU with new TLB location (reserved in
board_f.c::reserve_mmu) and re-enable the data cache.

This patch allows to reduce the execution time, particularly
- for the device tree parsing in U-Boot pre-reloc stage
  (dm_extended_scan_fd =>dm_scan_fdt)
- in I2C timing computation in SPL (stm32_i2c_choose_solution())

For example, the result on STM32MP157C-DK2 board is:
   1,6s gain for trusted boot chain with TF-A
   2,2s gain for basic boot chain with SPL

For information, as TLB is added in .data section, the binary size
increased and the SPL load time by ROM code increased (30ms on DK2).

But early malloc can't be used for TLB because arch_cpu_init()
is executed before the early poll initialization done in spl_common_init()
called by spl_early_init() So it too late for this use case.
And if I initialize the MMU and the cache after this function it is
too late, as dm_init_and_scan and fdt parsing is also called in
spl_common_init().

And .BSS can be used in board_init_f(): only stack and global can use
before BSS init done in board_init_r().

So .data is the better solution without hardcoded location but if you
have size issue for SPL you can deactivate cache for SPL only
(with CONFIG_SPL_SYS_DCACHE_OFF).

Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-05-14 09:02:12 +02:00