Commit graph

22786 commits

Author SHA1 Message Date
Pali Rohár
a8436a01a8 powerpc: dts: p2020: Sort DT nodes by their addresses
No functional change.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-07-03 15:13:51 +08:00
Tom Rini
284c1a9b4b First set of u-boot-at91 features for the 2022.10 cycle
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Merge tag 'u-boot-at91-2022.10-a' of https://source.denx.de/u-boot/custodians/u-boot-at91 into next

First set of u-boot-at91 features for the 2022.10 cycle:

This feature set includes mostly fixes and alignments: DT alignment with
Linux for sama7g5, removal of invalid eeprom compatibles, removal of
extra debug_uart_init calls for all at91 boards, support for pio4 driver
pioE bank, and other minor fixes and enhancements for sam9x60 and
sama5d2_icp boards.
2022-06-30 15:21:52 -04:00
Tom Rini
c5e7003aa8 Versal QSPI/OSPI changes for v2022.10
- Add new flash types
 - Add cadence ospi driver for Xilinx Versal
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Merge tag 'versal-qspi-for-v2022.10' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze into next

Versal QSPI/OSPI changes for v2022.10

- Add new flash types
- Add cadence ospi driver for Xilinx Versal
2022-06-30 09:32:15 -04:00
Mihai Sain
c1cadac793 gpio: atmel_pio4: add support for PIO_PORTE
Add support for gpio PORT E, which is available on e.g. sama7g5 SoC.

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
2022-06-30 15:49:00 +03:00
T Karthik Reddy
248fe9f302 spi: cadence_qspi: Enable apb linear mode for apb read & write operations
On versal platform, enable apb linear mode for apb read and write
execute operations amd disable it when using dma reads. This is done by
xilinx_pm_request() secure calls when CONFIG_ZYNQMP_FIRMWARE is enabled,
else we use direct raw reads and writes in case of mini U-Boot.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Link: https://lore.kernel.org/r/20220512100535.16364-5-ashok.reddy.soma@xilinx.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-29 16:00:31 +02:00
T Karthik Reddy
bf8dae5fcf spi: cadence-qspi: reset qspi flash for versal platform
When flash operated at non default mode like DDR, flash need to be reset
to operate in SDR mode to read flash ids by spi-nor framework. Reset the
flash to the default state before using the flash. This reset is handled
by a gpio driver, in case of mini U-Boot as gpio driver is disabled, we
do raw read and write access by the registers.
Versal platform utilizes spi calibration for read delay programming, so
incase by default read delay property is set in DT. We make sure not to
use read delay from DT by overwriting read_delay with -1.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Link: https://lore.kernel.org/r/20220512100535.16364-4-ashok.reddy.soma@xilinx.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-29 16:00:31 +02:00
Tom Rini
3371eddaa1 Convert CONFIG_USB_MAX_CONTROLLER_COUNT to Kconfig
This converts the following to Kconfig:
   CONFIG_USB_MAX_CONTROLLER_COUNT

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:11:48 -04:00
Tom Rini
de47ff5363 Convert CONFIG_SYS_MPC85XX_NO_RESETVEC to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_MPC85XX_NO_RESETVEC

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:11:48 -04:00
Tom Rini
3a21d45d33 siemens: Move CONFIG_FACTORYSET to Kconfig
Introduce board/siemens/common/Kconfig and have it hold FACTORYSET to
start with.  Use select for this on the boards that need it.

Cc: Anatolij Gustschin <agust@denx.de>
Cc: Samuel Egli <samuel.egli@siemens.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:04:38 -04:00
Tom Rini
24ec3dea4b arm: samsung: Migrate a number of symbols to Kconfig
- In a number of cases, use CONFIG_ARCH_EXYNOS[45] rather than
  CONFIG_EXYNOS[45]
- In other cases, test for CONFIG_ARCH_EXYNOS or CONFIG_ARCH_S5PC1XX
- Migrate specific SoC CONFIG values to Kconfig
- Use CONFIG_TARGET_x rather than CONFIG_x
- Migrate other CONFIG_EXYNOS_x symbols to Kconfig
- Reference CONFIG_EXYNOS_RELOCATE_CODE_BASE directly as EXYNOS_RELOCATE_CODE_BASE
- Rename CONFIG_S5P_PA_SYSRAM to CONFIG_SMP_PEN_ADDR to match the rest
  of U-Boot usage.

Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:04:37 -04:00
Tom Rini
1e03e03d03 arm: exynos: Remove old pwm backlight driver
Remove the unused older exynos pwm backlight driver.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2022-06-28 17:03:32 -04:00
Tom Rini
dc2d27ae72 arm: samsung: Remove dead LCD code
Since bb5930d5c9 ("exynos: video: Convert several boards to driver
model for video") there have been no callers of any of the exynos_lcd_*
family of functions.  Remove these from the boards, and then remove
unused logo and related code as well.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2022-06-28 17:03:32 -04:00
Tom Rini
aca1f6789a Convert CONFIG_LBA48 et al to Kconfig
This converts the following to Kconfig:
   CONFIG_LBA48
   CONFIG_SYS_64BIT_LBA

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:03:32 -04:00
Tom Rini
d64d338fcc xtensa: Switch to using CONFIG_XTENSA for building device trees
The only use of CONFIG_XTFPGA was to build all of the in-tree device
trees.  Switch to using CONFIG_XTENSA instead of a non-Kconfig symbol.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:03:31 -04:00
Tom Rini
8bea4bf7d3 tpl: Ensure all TPL symbols in Kconfig have some TPL dependency
Tighten up symbol dependencies in a number of places.  Ensure that a TPL
specific option has at least a direct dependency on TPL.  In places
where it's clear that we depend on something more specific, use that
dependency instead.

Reported-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:03:31 -04:00
Tom Rini
5858b90f50 spl: Move SPL_LDSCRIPT defaults to one place
We want to keep all of the default values for SPL_LDSCRIPT in the same
place both for overall clarity as well as not polluting unrelated config
files.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:03:31 -04:00
Tom Rini
0a4fcb2abc PowerPC: Remove some unused USB code
These particular code paths aren't used anymore, remove.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:03:31 -04:00
Tom Rini
7ef53a3dc6 Convert CONFIG_TEGRA_GPU to Kconfig
This converts the following to Kconfig:
   CONFIG_TEGRA_GPU

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:03:31 -04:00
Tom Rini
093044735f usb: ehci-fsl: Remove non-DM code
The deadline for DM_USB migration has passed and all users have been
migrated.  Remove now unused code.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:03:31 -04:00
Tom Rini
d6e9efa6b2 Convert CONFIG_EFLASH_PROTSECTORS to Kconfig
This converts the following to Kconfig:
   CONFIG_EFLASH_PROTSECTORS

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:03:30 -04:00
Joel Stanley
f6810b749f aspeed/ast2600: Fix SPL linker script
The commit 99e2fbcb69 ("linker_lists: Rename sections to remove .
prefix") changed the name of the linker list sections. As the Aspeed SPL
linker wasn't in the tree yet, it missed the change.

This updates the SPL linker to match arch/arm/cpu/u-boot-spl.lds which
Aspeed was copied from.

Fixes: 442a69c143 ("configs: ast2600: Move SPL bss section to DRAM space")
Signed-off-by: Joel Stanley <joel@jms.id.au>
2022-06-28 09:40:03 -04:00
Pali Rohár
c0f4756216 powerpc: mpc85xx: Set TEXT_BASE addresses to real base values
Currently CONFIG_SPL_TEXT_BASE and CONFIG_SYS_TEXT_BASE addresses are
manually increased by 0x1000 due to .bootpg section. This section has size
of 0x1000 bytes and is manually put by linker script before .text section
(and therefore before base address) when CONFIG_SYS_MPC85XX_NO_RESETVEC is
set. Due to this fact lot of other config options are manually increased by
0x1000 value to make correct layout. Note that entry point is not on
CONFIG_SPL_TEXT_BASE (image+0x1000) but it is really on address
CONFIG_SPL_TEXT_BASE-0x1000 (means at the start of the image).

Cleanup handling of .bootpg section when CONFIG_SYS_MPC85XX_NO_RESETVEC is
set. Put .bootpg code directly into .text section and move text base
address to the start of .bootpg code. And finally remove +0x1000 value from
lot of config options. With this removal custom PHDRS is not used anymore,
so remove it too.

After this change entry point would be at CONFIG_SPL_TEXT_BASE and not at
address -0x1000 anymore.

Tested on P2020 board with SPL and proper U-Boot.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-06-28 09:40:02 -04:00
Eugen Hristev
5ae89b3cfe ARM: dts: at91: sam9x60ek: fix eeprom compatible
The memory on this board is microchip 24aa025e48 which is compatible with
at24c02 with a page size of 16.
Fix the compatible accordingly.

Reported-by: Sergiu Moga <sergiu.moga@microchip.com>
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Tested-by: Sergiu Moga <sergiu.moga@microchip.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2022-06-28 10:09:45 +03:00
Eugen Hristev
0d60a93053 ARM: dts: at91: replace microchip, 24aa02e48 with atmel, at24c02
microchip,24aa025e48 does not exist in the bindings of this driver.
It can be replaced with atmel,at24c02 which is a standard compatible
and the memory is compatible with this one, depending on the page size.
microchip 24aa02e48 has a page size of 8, while 24aa025e48 has a page
size of 16 bytes.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Heiko Schocher <hs@denx.de>
2022-06-28 10:09:45 +03:00
Eugen Hristev
d4d3c33393 ARM: dts: at91: sama7g5/sama7g5ek: sync with kernel at91 5.19
Sync with at91 maintainer tree for-5.19 branch.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
2022-06-28 10:09:45 +03:00
Sergiu Moga
474130944d ARM: dts: sam9x60: fix compatible for qspi child node
Change the compatible of the qspi child node to
`jedec,spi-nor` so that it can be properly found
when probing the bus.

Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
2022-06-28 10:09:45 +03:00
Loic Poulain
0fcc1c76d1 armv8 SHA-256 using ARMv8 Crypto Extensions
This patch adds support for the SHA-256 Secure Hash Algorithm for CPUs
that have support for the SHA-256 part of the ARM v8 Crypto Extensions.

It greatly improves sha-256 based operations, about 17x faster on iMX8M
evk board. ~12ms vs ~208ms for a 20MiB kernel sha-256 verification.

asm implementation is a simplified version of the Linux version (from
Ard Biesheuvel).

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
2022-06-27 13:36:28 -04:00
Loic Poulain
084d8e6bf9 armv8 SHA-1 using ARMv8 Crypto Extensions:
This patch adds support for the SHA-1 Secure Hash Algorithm for CPUs
that have support for the SHA-1 part of the ARM v8 Crypto Extensions.

It greatly improves sha-1 based operations, about 10x faster on iMX8M
evk board. ~12ms vs ~165ms for a 20MiB kernel sha-1 verification.

asm implementation is a simplified version of the Linux version (from
Ard Biesheuvel).

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
2022-06-27 13:36:28 -04:00
Tom Rini
c316ee674f Xilinx changes for v2022.10
cpu:
 - Add driver for microblaze cpu
 
 net:
 - Add support for DM_ETH_PHY to AXI emac and emaclite
 
 xilinx:
 - Switch platforms to DM_ETH_PHY
 - DT chagnes in ZynqMP and Zynq
 - Enable support for SquashFS
 
 zynqmp:
 - Add support for KR260 boards
 - Move BSS from address 0
 - Move platform identification from board code to soc driver
 - Improve zynqmp_psu_init_minimize
 
 versal:
 - Enable loading app at EL1
 
 serial:
 - Setup default address and clock rates for DEBUG uarts
 
 pinctrl:
 - Add support for tri state and output enable properties
 
 relocate-rela:
 - Clean relocate-rela implementation for ARM64
 - Add support for Microblaze
 
 microblaze:
 - Add support for runtime relocation
 - Rework cache handling (wiring, Kconfig) based on cpuinfo
 - Remove interrupt support
 
 timer:
 - Extract axi timer driver from Microblaze to generic location
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Merge tag 'xilinx-for-v2022.10' of https://source.denx.de/u-boot/custodians/u-boot-microblaze into next

Xilinx changes for v2022.10

cpu:
- Add driver for microblaze cpu

net:
- Add support for DM_ETH_PHY to AXI emac and emaclite

xilinx:
- Switch platforms to DM_ETH_PHY
- DT chagnes in ZynqMP and Zynq
- Enable support for SquashFS

zynqmp:
- Add support for KR260 boards
- Move BSS from address 0
- Move platform identification from board code to soc driver
- Improve zynqmp_psu_init_minimize

versal:
- Enable loading app at EL1

serial:
- Setup default address and clock rates for DEBUG uarts

pinctrl:
- Add support for tri state and output enable properties

relocate-rela:
- Clean relocate-rela implementation for ARM64
- Add support for Microblaze

microblaze:
- Add support for runtime relocation
- Rework cache handling (wiring, Kconfig) based on cpuinfo
- Remove interrupt support

timer:
- Extract axi timer driver from Microblaze to generic location
2022-06-27 10:15:50 -04:00
Amit Kumar Mahapatra
a13e0821da ARM: zynq: Fix size-cells for pl353 driver
"size-cells" of the nand controller node should be 0 as the "reg"
property of the nand device node contains the chip select number and not
address information.
The patch fixes the below compilation warning
arch/arm/dts/zynq-zc770-xm011.dtb: Warning (reg_format):
/axi/memory-controller@e000e000/nand-controller@0,0/nand@0:reg: property
has invalid length (4 bytes) (#address-cells == 1, #size-cells == 1)

Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/6e90665a2dad7fe8ade10b8f57101f8144963791.1655288559.git.michal.simek@amd.com
2022-06-24 14:18:02 +02:00
Ashok Reddy Soma
b8745e7eb4 arm64: zynqmp: Fix usb node drive strength and slew rate
As per design, all input/rx pins should have fast slew rate and 12mA
drive strength. Rest all pins should be slow slew rate and 4mA drive
strength. Fix usb nodes as per this and remove setting of slow slew rate
for all the usb gorup pins.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/b245c165f05845c1f3ab41a92c82b7ec1538cee4.1655288171.git.michal.simek@amd.com
2022-06-24 14:17:18 +02:00
Michal Simek
aec051d813 microblaze: Remove interrupt handler
The primary purpose for this code was timer. By converting it to
CONFIG_TIMER there is no code which uses this implementation that's why
remove it. If there is a need to handle interrupts this patch can be
reverted in future.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/5f2decc5a30a5678490ebde26d8c6f5a5f873cda.1654684731.git.michal.simek@amd.com
2022-06-24 14:16:32 +02:00
Michal Simek
a36d86720f microblaze: Convert axi timer to DM driver
Move axi timer driver from Microblaze to generic location.
Origin implementation was irq based with counting down timer.

CONFIG_TIMER drivers are designed differently that timer is free running up
timer with automatic reload without any interrupt.
Information about clock rates are find out in timer_pre_probe() that's why
there is no need to get any additional information from DT in the driver
itself (only register offset).

Signed-off-by: Michal Simek <michal.simek@amd.com>
Tested-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Link: https://lore.kernel.org/r/6c12fc86bbc1f17d05c25018862e7b7b03346b36.1654684731.git.michal.simek@amd.com
2022-06-24 14:16:32 +02:00
Ovidiu Panait
816226d27e cpu: add CPU driver for microblaze
Add a basic CPU driver that retrieves information about the microblaze CPU
core. cpu_ops handlers are implemented so that the "cpu" command can work
properly:

U-Boot-mONStR> cpu list
  0: cpu@0      MicroBlaze @ 50MHz, Rev: 11.0, FPGA family: zynq7000
U-Boot-mONStR> cpu detail
  0: cpu@0      MicroBlaze @ 50MHz, Rev: 11.0, FPGA family: zynq7000
        ID = 0, freq = 50 MHz: L1 cache, MMU

Note: cpu_ver_lookup[] and family_string_lookup[] arrays were imported from
linux.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-14-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24 14:16:00 +02:00
Ovidiu Panait
9df16c5937 microblaze: add support for handling PVR data
Add helper code for PVR (Processor Version Register) data handling. It
will be used by the UCLASS_CPU driver to populate cpuinfo fields at
runtime.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-13-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24 14:16:00 +02:00
Ovidiu Panait
10f6508c07 microblaze: cache: introduce flush_dcache_range()
Align microblaze with the other architectures and provide an
implementation for flush_dcache_range(). Also, remove the microblaze
exception in drivers/core/device.c.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-11-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24 14:16:00 +02:00
Ovidiu Panait
95b7a8fd12 microblaze: cache: introduce cpuinfo structure
Introduce a minimal cpuinfo structure to hold cache related info. The
instruction/data cache size and cache line size are initialized early in
the boot to default Kconfig values. They will be overwritten with data
from PVR/dtb if the microblaze UCLASS_CPU driver is enabled.

The cpuinfo struct was placed in global_data to allow the microblaze
UCLASS_CPU driver to also run before relocation (initialized global data
should be read-only before relocation).

gd_cpuinfo() helper macro was added to avoid volatile
"-Wdiscarded-qualifiers" warnings when using the pointer directly.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-10-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com> (s/bralid/brlid/)
2022-06-24 14:16:00 +02:00
Ovidiu Panait
b195134984 microblaze: cache: introduce flush_cache_all()
All flush_cache() calls in microblaze code are supposed to flush the
entire instruction and data caches, so introduce flush_cache_all()
helper to handle this.

Also, provide implementations for flush_dcache_all() and
invalidate_icache_all() so that icache and dcache u-boot commands can
work.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-9-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24 14:16:00 +02:00
Ovidiu Panait
84488fc693 microblaze: cache: introduce Kconfig options for icache/dcache sizes
Replace XILINX_DCACHE_BYTE_SIZE macro with two Kconfig symbols for
instruction and data caches sizes, respectively:
CONFIG_XILINX_MICROBLAZE0_ICACHE_SIZE
CONFIG_XILINX_MICROBLAZE0_DCACHE_SIZE

Also, get rid of the hardcoded value in icache_disable().

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-8-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com> (s/bralid/brlid/g)
2022-06-24 14:16:00 +02:00
Ovidiu Panait
73b8ee62a0 microblaze: cache: split flush_cache() function
Factor out icache/dcache components from flush_cache() function. Call the
newly added __flush_icache()/__flush_dcache() functions inside
icache_disable() and dcache_disable(), respectively. There is no need to
flush both caches when disabling a particular cache type.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-7-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24 14:16:00 +02:00
Ovidiu Panait
8daf89678e microblaze: cache: improve icache Kconfig options
Replace CONFIG_ICACHE with a Kconfig option more limited in scope -
XILINX_MICROBLAZE0_USE_WIC. It should be enabled if the processor supports
the "wic" (Write to Instruction Cache) instruction. It will be used to
guard "wic" invocations in microblaze cache code.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-6-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24 14:16:00 +02:00
Ovidiu Panait
ef0a592ae8 microblaze: cache: improve dcache Kconfig options
Replace CONFIG_DCACHE with a Kconfig option more limited in scope -
XILINX_MICROBLAZE0_USE_WDC. It should be enabled if the processor supports
the "wdc" (Write to Data Cache) instruction. It will be used to guard
"wdc" invocations in microblaze cache code.

Also, drop all ifdefs around flush_cache() calls and only keep one
CONFIG_IS_ENABLED() guard within flush_cache() itself.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-5-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24 14:16:00 +02:00
Ovidiu Panait
0ad71dc53a microblaze: cache: replace XILINX_USE_DCACHE -> CONFIG_DCACHE
XILINX_USE_DCACHE macro was removed in 7556fa09e0 ("microblaze: Simplify
cache handling"), but it was still used in a couple of places.

Replace those occurences with CONFIG_DCACHE.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-4-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24 14:16:00 +02:00
Ovidiu Panait
130fae2dec microblaze: start.S: remove unused code
in16/out16 routines seem to not be used anywhere in microblaze code, so
remove them.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20220531181435.3473549-3-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24 14:16:00 +02:00
Michal Simek
d58c007498 microblaze: Add support for run time relocation
Microblaze is using NEEDS_MANUAL_RELOC from the beginnging. This is causing
issues with function pointer arrays which need to be updated manually after
relocation. Building code with -fPIC and linking with -pic will remove this
limitation and there is no longer need to run manual update.

By default still old option is enabled but by disabling NEEDS_MANUAL_RELOC
code will be compiled for full relocation.

The patch does couple of things which are connected to each other.
- Define STATIC_RELA dependency to call relocate-rela to fill sections.
- REMAKE_ELF was already enabled but u-boot file can't be used because
  sections are empty. relocate-rela will fill them and output file is
  u-boot.elf which should be used.
- Add support for full relocation (u-boot.elf)
- Add support for early relocation when u-boot.bin is loaded to different
  address then CONFIG_SYS_TEXT_BASE
- Add rela.dyn and dynsym sections

Disabling NEEDS_MANUAL_RELOC U-Boot size increased by 10% of it's original
size (550kB to 608kB).

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/a845670b34925859b2e321875f7588a29f6655f9.1655299267.git.michal.simek@amd.com
2022-06-24 14:15:01 +02:00
Michal Simek
07c052be51 microblaze: Create SYM_ADDR macro to deal with symbols
Symbol handling depends on compilation flags. Right now manual relocation
is used that's why symbols can be referenced just by name and there is no
need to find them out. But when position independent code (PIC) is used
symbols need to be described differently. That's why having one macro
change is easier than changing the whole code.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/d704e9a267c8b536452fb999111dbfbc9d652be5.1655299267.git.michal.simek@amd.com
2022-06-24 14:15:00 +02:00
Michal Simek
81169ae648 microblaze: Add comment about reset location
Better to add comment to explain why reset vector points all the time to
origin U-Boot location.
If reset happens U-Boot should start from it's origin location.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/5ca6341b7487708247fe2948d7e496ea6f7c2e02.1655299267.git.michal.simek@amd.com
2022-06-24 14:15:00 +02:00
Michal Simek
b6fe10afe9 microblaze: Remove _start symbol handling at U-Boot start
Right now U-Boot runs all the time from the same address where it is loaded
but going to full relocation code starting address doesn't need to be fixed
and can be simply discovered from reading PC register. That's why use r20
to get PC address and subtract offset from the beginning to get starting
address.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/044b727c33dfbe662f68512d0da0775a4805f360.1655299267.git.michal.simek@amd.com
2022-06-24 14:15:00 +02:00
Michal Simek
986727ca11 microblaze: Remove code around r20 in relocate_code()
r20 is not used that's why remove logic around it.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/1b32bab5c050d099b2f6d49bc4896322ed03d788.1655299267.git.michal.simek@amd.com
2022-06-24 14:15:00 +02:00
Michal Simek
3041b512eb microblaze: Optimize register usage in relocate_code
There are additional operations which can be done simpler that's why
improve logic around relocation address r7 handling and _start symbol.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/c8b60f72f1605c2ba6b4b7be1893d7e6ec3d8597.1655299267.git.michal.simek@amd.com
2022-06-24 14:15:00 +02:00