Commit graph

67991 commits

Author SHA1 Message Date
Heinrich Schuchardt
6befc1f900 clk: ICS8N3QV01 remove superfluous code
Do not calculate a unused value of n which is overwritten in both branches
of the subsequent if statement.

Identified by cppcheck.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2020-08-24 11:03:26 +02:00
Tom Rini
d584648dad replace devfdt_get_addr_ptr() with dev_read_addr_ptr()
binman fixes for portage
 various minor fixes
 'bind' command improvements
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Merge tag 'dm-pull-22aug20' of https://gitlab.denx.de/u-boot/custodians/u-boot-dm

replace devfdt_get_addr_ptr() with dev_read_addr_ptr()
binman fixes for portage
various minor fixes
'bind' command improvements
2020-08-23 16:06:38 -04:00
Tom Rini
c84341f5ac Merge branch '2020-08-21-stdio-cleanup'
- Clean up common/stdio.c and migrate some related options to Kconfig
2020-08-23 15:53:10 -04:00
Simon Glass
4225f2f520 stdio: Tidy up the coding style
Bring the coding style in this file up to the current level.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-23 13:43:10 -04:00
Simon Glass
18c587d099 stdio: Drop brackets around &devs.list
These brackets are not needed. Drop them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-23 13:43:10 -04:00
Simon Glass
5d4b6b1748 stdio: Update to use compiler for Kconfig checks
Drop use of the preprocessor where possible.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-23 13:43:10 -04:00
Simon Glass
3bcd0ced15 stdio: Drop #ifdefs in the header file
These prevent the use of IS_ENABLED() and are unnecessary. Drop them and
fix a few code-style nits nearby.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-23 13:43:10 -04:00
Simon Glass
3ca0609adc stdio: Tidy up use of CONFIG_SYS_DEVICE_NULLDEV
Now that this is in Kconfig we can move the logic at the top of the file
to Kconfig, and use if() instead of #if. Update the file with these
changes.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-23 13:43:10 -04:00
Simon Glass
7e15638d60 Convert CONFIG_SYS_DEVICE_NULLDEV to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_DEVICE_NULLDEV

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-23 13:43:10 -04:00
Simon Glass
35bd70c510 Convert CONFIG_SPLASH_SCREEN et al to Kconfig
This converts the following to Kconfig:
   CONFIG_SPLASH_SCREEN
   CONFIG_SPLASH_SCREEN_ALIGN
   CONFIG_SPLASHIMAGE_GUARD
   CONFIG_SPLASH_SOURCE

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-23 13:43:10 -04:00
Simon Glass
a38cc1726b moveconfig: Skip binary and ELF files
Add a few more file extensions to the list of files that should not be
processed. This avoids unicode errors, for example.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-23 13:43:10 -04:00
Tom Rini
a7fc1e12ad Convert CONFIG_NETCONSOLE to Kconfig
This converts the following to Kconfig:
   CONFIG_NETCONSOLE

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-08-23 13:06:36 -04:00
Ovidiu Panait
a402035028 sandbox: u-boot.lds: Remove bogus __bss_start symbol
The sections described in the sandbox linker script are inserted before
data section via "INSERT BEFORE .data;". Running readelf -S on sandbox
u-boot binary shows that the bss section is located after the data
section:

  Section Headers:
  [Nr] Name              Type             Address           Offset
       Size              EntSize          Flags  Link  Info  Align
  ...
  [25] .u_boot_list      PROGBITS         000000000041d1c8  0021d1c8
       000000000000dd90  0000000000000000  WA       0     0     8
  [26] _u_boot_sandbox_g PROGBITS         000000000042af58  0022af58
       00000000000000a0  0000000000000000  WA       0     0     8
  [27] .data             PROGBITS         000000000042b000  0022b000
       000000000000f708  0000000000000000  WA       0     0     32
  [28] .bss              NOBITS           000000000043a720  0023a708
       0000000000018930  0000000000000000  WA       0     0     32

This means that the __bss_start assignment in the linker script is bogus,
as the actual bss section start is located elsewhere. Remove this
assignment, as the __bss_start symbol is not used on sandbox anyway.

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
2020-08-22 08:54:51 -06:00
Ovidiu Panait
78237828a3 board_f: Remove dead code from init_func_i2c
Since commit 69153988a6 ("i2c: Finish dropping use of CONFIG_I2C_HARD")
init_func_i2c is wrapped only by "#if defined(CONFIG_SYS_I2C)". Because
of this, the second ifdef within becomes pointless:

 #if defined(CONFIG_SYS_I2C)
 static int init_func_i2c(void)
 <snip>
     #ifdef CONFIG_SYS_I2C
         ...
     #else
         ...
     #endif
 <snip>
 }
 #endif

Remove the dead #else preprocessor code.

Fixes: 69153988a6 ("i2c: Finish dropping use of CONFIG_I2C_HARD")
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
2020-08-22 08:54:51 -06:00
Simon Glass
02c102074d binman: Add a setup script for Python
Allow binman to be installed by adding a suitable setup.py script.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-22 08:53:38 -06:00
Simon Glass
946ec85037 dtoc: Add a setup script for Python
Allow dtoc to be installed by adding a suitable setup.py script.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-22 08:53:38 -06:00
Simon Glass
07237988dc binman: Correct some import statements
Some of these were not converted when binman moved to use absolute paths.
Fix them.

Also drop the import of 'test' which is a directory, not a module.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-22 08:53:38 -06:00
Simon Glass
87d43329ef binman: Move GetEntryModules() to control
When binman is installed its main program is in a different directory
to its modules. This means that __file__ is different and we cannot use
it to obtain the path to etype/ from main.py

To fix this, move the function to the 'control' module, since it is
installed with all the other modules, including the etype/ directory.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-22 08:53:38 -06:00
Masahiro Yamada
702e57e113 treewide: convert devfdt_get_addr_ptr() to dev_read_addr_ptr()
When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.

To help this tedious work, this commit converts devfdt_get_addr_ptr()
to dev_read_addr_ptr() by coccinelle. I also removed redundant casts
because dev_read_addr_ptr() returns an opaque pointer.

To generate this commit, I ran the following semantic patch
excluding include/dm/.

  <smpl>
  @@
  type T;
  expression dev;
  @@
  -(T *)devfdt_get_addr_ptr(dev)
  +dev_read_addr_ptr(dev)
  @@
  expression dev;
  @@
  -devfdt_get_addr_ptr(dev)
  +dev_read_addr_ptr(dev)
  </smpl>

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22 08:53:37 -06:00
Masahiro Yamada
1450bff3e4 ata: mvebu: use dev_read_addr() to get base address
It is strange to use devfdt_get_addr_ptr(), then cast the pointer
back to ulong because you could use devfdt_get_addr() without casting.

Convert it to dev_read_addr(), which is capable to CONFIG_OF_LIVE.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2020-08-22 08:51:44 -06:00
Masahiro Yamada
0cbf3e08fc gpio: at91: use dev_read_addr() to get base address
It is strange to use devfdt_get_addr_ptr(), then cast the pointer
back to uint32 because you could use devfdt_get_addr() without casting.

Convert it to dev_read_addr(), which is capable to CONFIG_OF_LIVE.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22 08:51:44 -06:00
Ovidiu Panait
6e64830f0b test: dm: Add test case for devfdt_get_addr_ptr
Add flat tree test case to cover devfdt_get_addr_ptr function.

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22 08:51:43 -06:00
Ovidiu Panait
3fe69d3764 dm: core: Fix devfdt_get_addr_ptr return value
According to the description of devfdt_get_addr_ptr, this function should
return NULL on failure, but currently it returns (void *)FDT_ADDR_T_NONE.

Fix this by making devfdt_get_addr_ptr return NULL on failure, as
described in the function comments. Also, update the drivers currently
checking (void *)FDT_ADDR_T_NONE to check for NULL.

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22 07:59:14 -06:00
Patrice Chotard
02291d83fd doc: add bind/unbind command documentation
Add documentation in doc/drivel-model for the bind/unbind command.
Part of this documentation is extracted from original patch commit
message:
commit 49c752c93a ("cmd: Add bind/unbind commands to bind a device to a driver from the command line")

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22 07:58:39 -06:00
Patrice Chotard
e37d4c4fd2 test/py: Update test_bind
As bind-test is now binded at sandbox startup and no more by
test_bind.py, bind-test nodes are not located at the end of
"dm tree" output, but can be located everywhere in the tree, so
bind-test output could either be:

 simple_bus    0  [   ]   generic_simple_bus    |-- bind-test
 phy           0  [   ]   phy_sandbox           |   |-- bind-test-child1
 simple_bus    1  [   ]   generic_simple_bus    |   `-- bind-test-child2

or:

 simple_bus    5  [   ]   generic_simple_bus    `-- bind-test
 phy           2  [   ]   phy_sandbox               |-- bind-test-child1
 simple_bus    6  [   ]   generic_simple_bus        `-- bind-test-child2

in_tree() function need to be updated to take care of that change.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22 07:58:39 -06:00
Patrice Chotard
1f0d5885db sandbox: dts: Add compatible string for bind-test node
Usage of lists_bind_fdt() in bind command imposes to add
a compatible string for bind-test node.

Others impacts are:
  - bind-test node is binded at sandbox start, so no need to bind it
    in test_bind_unbind_with_node() test.
  - As explained just above, after sandbox start, now a phy exist.
    In test/dm/phy.c, it was verified that a third phy didn't exist,
    now we must verified that a fourth phy doesn't exist.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22 07:58:39 -06:00
Patrice Chotard
cfa3ed4390 sandbox: phy: add driver_data for bind test cmd
Add driver data to existing compatible string "sandbox,phy".
Add an additional compatible string without driver_data

This will verify that bind command parses, finds and passes the
correct driver data to device_bind_with_driver_data() by using
driver_data in the second sandbox_phy_ids table entry.
In sandbox_phy_bind() a check is added to validate driver_data
content.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22 07:58:39 -06:00
Patrice Chotard
84f8e36f03 cmd: bind: allow to bind driver with driver data
Initial implementation invokes device_bind_with_driver_data()
with driver_data parameter equal to 0.
For driver with driver data, the bind command can't bind
correctly this driver or even worse causes data abort as shown below:

As example, for debug purpose on STM32MP1 platform, ethernet
(dwc_eth_qos.c) driver needed to be unbinded/binded.
This driver is using driver data:

static const struct udevice_id eqos_ids[] = {
    {
        .compatible = "nvidia,tegra186-eqos",
        .data = (ulong)&eqos_tegra186_config
    },
    {
        .compatible = "snps,dwmac-4.20a",
        .data = (ulong)&eqos_stm32_config
    },

    { }
};

After unbinding/binding this driver and probing it (with the dhcp command),
we got a prefetch abort as below:

STM32MP> unbind eth ethernet@5800a000
STM32MP> bind /soc/ethernet@5800a000 eth_eqos
STM32MP> dhcp
prefetch abort
pc : [<4310801c>]          lr : [<ffc8f4ad>]
reloc pc : [<035ba01c>]    lr : [<c01414ad>]
sp : fdaf19b0  ip : ffcea83c     fp : 00000001
r10: ffcfd4a0  r9 : fdaffed0     r8 : 00000000
r7 : ffcff304  r6 : fdc63220     r5 : 00000000  r4 : fdc5b108
r3 : 43108020  r2 : 00003d39     r1 : ffcea544  r0 : fdc63220
Flags: nZCv  IRQs off  FIQs off  Mode SVC_32
Code: data abort
pc : [<ffc4f9c0>]          lr : [<ffc4f9ad>]
reloc pc : [<c01019c0>]    lr : [<c01019ad>]
sp : fdaf18b8  ip : 00000000     fp : 00000001
r10: ffcd69b2  r9 : fdaffed0     r8 : ffcd69aa
r7 : 00000000  r6 : 00000008     r5 : 4310801c  r4 : fffffffc
r3 : 00000001  r2 : 00000028     r1 : 00000000  r0 : 00000006
Flags: NzCv  IRQs on  FIQs on  Mode SVC_32 (T)
Code: 2f00 d1e9 2c00 dce9 (f855) 2024
Resetting CPU ...

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22 07:58:39 -06:00
Heinrich Schuchardt
ae6b33dcc3 dm: fix ofnode_read_addr/size_cells()
In the case of the live tree ofnode_read_addr_cells() and
ofnode_read_size_cells() return the #address-cells and #size-cells defined
in the parent node. With the patch the same is done for a non-live tree.

The only consumer of these functions is currently the CFI flash driver.

This patch fixes the incorrect parsing of the device tree leading to
'saveenv' failing on qemu_arm64_defconfig.

For testing qemu-system-aarch64 has to be called with

    -drive if=pflash,format=raw,index=1,file=envstore.img

to provide the flash memory. envstore.img must be 64 MiB large.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
2020-08-22 07:58:39 -06:00
Kever Yang
b5b81f2490 rockchip: firefly-rk3288: Fix the code support for SPL_LED
Fix the build error for the wrong code when CONFIG_SPL_LED is enabled.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2020-08-21 19:56:19 +08:00
Kever Yang
e2f8ba8a5f rockchip: rk3188: Fix the code support for SPL_LED
Fix the build error for the wrong code when CONFIG_SPL_LED is enabled.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2020-08-21 19:56:19 +08:00
Kever Yang
5c5435093a rockchip: config: evb-rk3399: Add rockchip dwmmc support
This enable support for SD card on evb-rk3399.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2020-08-21 19:56:19 +08:00
Kever Yang
d6092e3229 rockchip: dts: rk3399-evb: add sdmmc node
The sdmmc node is missing after the dts sync patch:
  167efc2c7a arm64: dts: rk3399: Sync v5.7-rc1 from Linux
But we still need it for boot from SD card, so add it.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2020-08-21 19:56:19 +08:00
Tom Rini
2e6132d835 Xilinx changes for v2020.10-rc3
- Fix fdtfile variable setup
 - Fix bootm_*/fdt_high/initrd_high variables handling
 - Fix Kconfig dependencies for Xilinx drivers
 - Fix booting u-boot from lowest memory
 - Fix firmware payload argument count for Versal
 - Fix dfu configurations
 - Fix mio_bank property handling
 - Fix and align code around ID detection
 - Start to use ENV_VARS_UBOOT_RUNTIME_CONFIG
 - Simplify logic around reading MAC from eeprom
 - Decrease malloc length for zynqmp mini qspi
 - Enable preboot for ZynqMP and Versal
 
 i2c:
 - Fix i2c eeprom partitions handling
 
 mmc:
 - Fix logic around HS mode enabling and use proper functions
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Merge tag 'xilinx-for-v2020.10-rc3' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2020.10-rc3

- Fix fdtfile variable setup
- Fix bootm_*/fdt_high/initrd_high variables handling
- Fix Kconfig dependencies for Xilinx drivers
- Fix booting u-boot from lowest memory
- Fix firmware payload argument count for Versal
- Fix dfu configurations
- Fix mio_bank property handling
- Fix and align code around ID detection
- Start to use ENV_VARS_UBOOT_RUNTIME_CONFIG
- Simplify logic around reading MAC from eeprom
- Decrease malloc length for zynqmp mini qspi
- Enable preboot for ZynqMP and Versal

i2c:
- Fix i2c eeprom partitions handling

mmc:
- Fix logic around HS mode enabling and use proper functions
2020-08-20 14:46:43 -04:00
Tom Rini
2a4484a5c5 Merge branch '2020-08-19-mediatek-updates'
- Assorted updates for MediaTek platforms
2020-08-20 08:38:10 -04:00
Michal Simek
29af2ac48c clk: versal: Move pm_query_id out of clock driver
There is no reason to have firmware specific structure in clock driver.
Move it to generic location and also initialize enum values which is based
on https://lore.kernel.org/linux-arm-kernel/20200318125003.GA2727094@kroah.com/
recommended way to go to make sure that values guaranteed by compiler.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 10:57:46 +02:00
Michal Simek
b5a3387dc1 mmc: sdhci: Use upper/lower_32_bits macros
Instead of recasting and shifting use macros which are designed for taking
upper/lower 32bit value from 64bit variable.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:58:59 +02:00
Faiz Abbas
620bb46ead mmc: sdhci: Enable high speed conditional on the corresponding bit
The capabilities register has a field to indicate whether the host
supports high speed mode or not. Add high speed host_caps based on
this bit instead of enabling it by default.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Reviewed-by: Michal Simek <michal.simek@xilnx.com>
Tested-by: Michal Simek <michal.simek@xilnx.com>
(zcu104 with sdhci-caps-mask = <0 0x200000>;)
2020-08-20 09:58:59 +02:00
Michal Simek
2570cc6430 xilinx: common: Change bootm_size variable setting
Linux kernel for arm32 requires dtb and initrd to be placed in low memory
to work properly. This requirement is described in chapter 4b) and 5) in
Linux documentation (Documentation/arm/booting.rst).

There is an issue on arm32 with 2GB of memory that bootm_size is bigger
than Linux lowmem (for example with VMSPLIT_3G). That's why limit bootm
size on these systems not to be above 768MB.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:58:16 +02:00
Michal Simek
ca0f616530 xilinx: common: Check return value from variable setup
env_set..() can failed that's why check return status and report it back to
make sure that user is aware that's something went wrong.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:58:16 +02:00
Michal Simek
653809f43f xilinx: common: Get rid of initrd_high variable setup
When bootm_low/bootm_size are setup properly there is no need to setup any
initrd_high address. Location for initrd is determined through LMB.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:58:16 +02:00
Michal Simek
0bfb43dfc1 xilinx: common: Get rid of fdt_high variable
There is no need to setup this variable if bootm_low and bootm_size
variable are properly setup. If fdt_high variable is missing U-Boot is
asking LMB to return free memory which is not used.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:58:16 +02:00
Michal Simek
9fea3b18d6 xilinx: Change logic around zynq_board_read_rom_ethaddr()
There is no reason to build private function when
CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET is not defined. There is already weak
function which handles default case properly.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:49:20 +02:00
Michal Simek
62b96262b6 xilinx: Add support for ENV_VARS_UBOOT_RUNTIME_CONFIG
Start to use ENV_VARS_UBOOT_RUNTIME_CONFIG to enable/disable updating
variables with run time information.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:49:20 +02:00
Michal Simek
d5c42ec31b xilinx: versal: Enable i2c misc eeprom driver
Enable this driver to be able to work with i2c based eeproms on Versal.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:49:20 +02:00
Ibai Erkiaga
de4f748ef5 xilinx: zynqmp: fix incorrect map not align with IPI HW
Current IPI module register description is not align with IPI HW. The
registers with the wrong offset are not used so it does not cause real
issues. This patch aligns the register description.

Additionally comments added to explain why recv function does not check
any flag prior copying rx data.

Fixes: 660b0c77d8 ("mailbox: zynqmp: ipi mailbox driver")
Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:49:20 +02:00
Ibai Erkiaga
050f10f103 xilinx: zynqmp: remove chip_id function
Remove chip_id function and integrate the firmware call in the
zynqmp_get_silicon_idcode_name function. The change avoids querying the
firmware twice and makes the code bit more clear.

Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:49:20 +02:00
Ibai Erkiaga
4b2ad7b111 xilinx: zynqmp: get chip ID at EL3
Modify the board init function to allow getting the chip ID when U-Boot
proper is executed at EL3.

Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:49:20 +02:00
Ibai Erkiaga
21c2fc7c6a xilinx: zynqmp: get chip ID using firmware driver
Current implementation for getting chip ID uses either raw access on EL3
or a SMC call to get the silicon information. Following change
simplifies the code using always the firmware driver.

Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:49:20 +02:00
Ibai Erkiaga
2eabb6bfea xilinx: zynqmp: merge firmware calls for EL2 and EL3
This patch merges ZynqMP firmware calls under xilinx_pm_request in order
to make trainsparent the EL. Calls at EL3 are send through IPI messages
and EL2 through SMC calls.

The EL2 call uses fixed payload and arg size as the EL3 call. The
firmware is capable to handle PMUFW_PAYLOAD_ARG_CNT bytes but the
firmware API is limited by the SMC call size.

Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:49:20 +02:00