Commit Graph

19189 Commits

Author SHA1 Message Date
Tom Rini
9f9ecd3e4d Merge https://gitlab.denx.de/u-boot/custodians/u-boot-marvell
- Add basic Marvell/Cavium OcteonTX/TX2 support (Suneel)
- Infrastructure changes to PCI uclass to support these SoC's (Suneel)
- Add PCI, MMC & watchdog driver drivers for OcteonTX/TX2 (Suneel)
- Increase CONFIG_SYS_MALLOC_F_LEN for qemu-x86 (Stefan)
2020-08-25 13:38:29 -04:00
Tom Rini
e49a9d4ddb Merge tag 'u-boot-rockchip-20200820' of https://gitlab.denx.de/u-boot/custodians/u-boot-rockchip
- Fix rk3399 evb sdcard support
- Fix for SPL_LED support
2020-08-25 08:19:14 -04:00
Tom Rini
078656186f Merge https://gitlab.denx.de/u-boot/custodians/u-boot-riscv
- Sipeed Maix support S-mode.
- Provide command sbi.
- Use fdtdec_get_addr_size_auto_parent to get fu540 cache base address.
- Fix a compiler error with CONFIG_SPL_SMP=n.
- Fix sifive ram driver 32 compiler warnings.
- Fix kendryte/pll.h redefine nop() warning.
2020-08-25 08:18:50 -04:00
Suneel Garapati
0a668f6d38 arm: octeontx2: Add support for OcteonTX2 SoC platforms
This patch adds support for all OcteonTX2 96xx/95xx
boards from Marvell.
For 96xx boards, use octeontx_96xx_defconfig and
for 95xx boards, use octeontx_95xx_defconfig.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
2020-08-25 08:01:16 +02:00
Suneel Garapati
03c2288070 arm: octeontx: Add support for OcteonTX SoC platforms
This patch adds support for all OcteonTX 81xx/83xx
boards from Marvell.
For 81xx boards, use octeontx_81xx_defconfig and
for 83xx boards, use octeontx_83xx_defconfig.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
2020-08-25 08:01:16 +02:00
Suneel Garapati
04cd0a0fa0 arm: octeontx2: Add headers for OcteonTX2
Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
2020-08-25 08:01:16 +02:00
Suneel Garapati
387d321add arm: octeontx: Add headers for OcteonTX
Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-25 08:01:16 +02:00
Suneel Garapati
c2f45b6588 arm: include/asm/io.h: Add 64bit clrbits and setbits helpers
Add 64bit API for clrbits and setbits.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-25 08:01:16 +02:00
Suneel Garapati
4cf56ec07f pci: pci-uclass: Add multi entry support for memory regions
Enable PCI memory regions in ranges property to be of multiple entry.
This helps to add support for SoC's like OcteonTX/TX2 where every
peripheral is on PCI bus.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
2020-08-25 08:01:16 +02:00
Heinrich Schuchardt
c92b50a44b cmd: provide command sbi
Provide a command to display information about the SBI implementation.

The output might look like:

=> sbi
SBI 0.2
OpenSBI
Extensions:
  sbi_set_timer
  sbi_console_putchar
  sbi_console_getchar
  sbi_clear_ipi
  sbi_send_ipi
  sbi_remote_fence_i
  sbi_remote_sfence_vma
  sbi_remote_sfence_vma_asid
  sbi_shutdown
  SBI Base Functionality
  Timer Extension
  IPI Extension
  RFENCE Extension
  Hart State Management Extension

The command can be used to construct a unit test checking that the
communication with the SEE is working.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@openfive.com>
Tested-by:  Pragnesh Patel <pragnesh.patel@openfive.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Tested-by: Rick Chen <rick@andestech.com>
2020-08-25 09:34:47 +08:00
Heinrich Schuchardt
092f15aee5 riscv: fix building with CONFIG_SPL_SMP=n
Building with CONFIG_SPL_SMP=n results in:

arch/riscv/lib/spl.c: In function ‘jump_to_image_no_args’:
arch/riscv/lib/spl.c:33:6:
error: unused variable ‘ret’ [-Werror=unused-variable]
   33 |  int ret;
      |      ^~~

Define the variable ret as __maybe_unused.

Fixes: 191636e448 ("riscv: Introduce SPL_SMP Kconfig option for U-Boot SPL")
Fixes: 8c59f2023c ("riscv: add SPL support")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@openfive.com>
2020-08-25 09:33:45 +08:00
Bin Meng
52dc7ae749 riscv: fu540: Use correct API to get L2 cache controller base address
At present fdtdec_get_addr() is used to get L2 cache controller base
address. This only works for a fixed #address-cells and #size-cells.
Change to use fdtdec_get_addr_size_auto_parent() instead.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@openfive.com>
2020-08-25 09:33:16 +08:00
Frank Wunderlich
35051db978 arm: dts: mt7623: add USB nodes
This adds USB nodes for MT7623/BPI-R2

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
2020-08-24 14:11:31 -04:00
Frank Wunderlich
a13666b205 arm: dts: mt7622: add USB nodes
Add DTS nodes for MT7622/BPI-R64

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
2020-08-24 14:11:31 -04:00
Frank Wunderlich
28e1b1df3b arm: dts: rename mt7622-bpi-r64.dts
rename mt7622-bpi-r64.dts to mt7622-bananapi-bpi-r64.dts
to follow naming convensions

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
2020-08-24 14:11:31 -04:00
Usama Arif
565add124d board: armltd: Add support for Total Compute platform
Total Compute is based on ARM architecture and has
the following features enabled in u-boot:
- PL011 UART
- PL180 MMC
- NOR Flash
- FIT image with Signature
- AVB

Signed-off-by: Usama Arif <usama.arif@arm.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-08-24 14:11:31 -04:00
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
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
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
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
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
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
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
f6cccbb5f2 xilinx: zynqmp: synchronize firmware call return payload
Removes duplicated definition of PAYLOAD_ARG_CNT and define it in the
firmware driver. Additionally fixes payload buffer declarations without
macro usage

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
Michal Simek
01a6da1661 xilinx: Fix xlnx,mio_bank property
s/xlnx,mio_bank/xlnx,mio-bank/g

DT binding is describing mio-bank not mio_bank that's why fix all DTSes and
also driver itself.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
2020-08-20 09:49:20 +02:00
Michal Simek
f692b479f0 i2c: eeprom: Use reg property instead of offset and size
Remove adhoc dt binding for fixed-partition definition for i2c eeprom.
fixed-partition are using reg property instead of offset/size pair.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-20 09:49:20 +02:00
Ibai Erkiaga
11b1dcec09 versal: fix versal PM ret payload size
The PM return payload size is defined as 4 bytes for Versal arquitecture
while the PM calls implemented both in the Versal clock driver and
ZynqMP firmware driver expects 5 bytes length.

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
T Karthik Reddy
526a67eb35 xilinx: versal: Add new versal loadpdi command
Versal loadpdi command is used for loading secure & non-secure
pdi images.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-08-20 09:49:20 +02:00
Frank Wunderlich
7cf8537d5e dts: r64: add sata- and asm_sel nodes
asm_sel is for switching between sata and pcie mode
on r64 there is GPIO90 connected to ASM1480 which
switches RX/TX pairs to PCIe/SATA connector
output-low means sata-controller is active

with 2020-10 now reg is also needed for the phy itself

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
2020-08-19 17:38:15 -04:00
Frank Wunderlich
f08c2c2d87 arm: dts: mt7622: add PCIe nodes for BananaPi-R64
this patch adds PCIe-Nodes for BananaPi R64

original nodes from Chuanjia Liu for mt7622-rfb

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
2020-08-19 17:38:14 -04:00
Frank Wunderlich
8ad2fc413f dts: r64: add r64 dts
add a separate DTS for BananaPi R64 because it has 1GB RAM and SATA-Support

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
2020-08-19 17:38:14 -04:00
Frank Wunderlich
35d0fdbf17 arm: dts: add watchdog-node for mt7622
adding a watchdog-node to mt7622 dtsi

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
2020-08-19 17:37:37 -04:00
Chuanjia Liu
bb9d3ad521 arm: dts: mediatek: add PCIe node for MT7622
This patch adds PCIe node in dts for Mediatek MT7622 Soc.

Signed-off-by: Chuanjia Liu <Chuanjia.Liu@mediatek.com>
Signed-off-by: Henry Yen <henry.yen@mediatek.com>
2020-08-19 17:37:37 -04:00
Chuanjia Liu
0cc587dd86 arm: dts: mediatek: add pciesys support for MT7622 SoC
This patch adds pciesys support in dts for MediaTek MT7622 SoC.

Signed-off-by: Henry Yen <henry.yen@mediatek.com>
Signed-off-by: Chuanjia Liu <Chuanjia.Liu@mediatek.com>
2020-08-19 17:37:37 -04:00
Masahiro Yamada
65282edbdf ARM: dts: uniphier: resync DT with Linux 5.9-rc1
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-08-18 02:01:14 +09:00
Masahiro Yamada
351b74cb6d ARM: uniphier: use FIELD_GET() to get access to revision register fields
Define register fields as macros, and use FIELD_GET().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-08-18 02:01:14 +09:00
Masahiro Yamada
055e5ad287 ARM: uniphier: remove unneeded header inclusion from board_late_init.c
<nand.h> is unneeded since commit 9248a78f40 ("ARM: UniPhier: remove
Denali NAND controller fixup code").

<linux/io.h> is uneeded since commit 1320fa2e55 ("ARM: uniphier:
remove workaround for the NAND write protect").

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-08-18 02:01:14 +09:00
Masahiro Yamada
2dbb6beb00 ARM: uniphier: remove unused uniphier_pin_init()
This function is unused since commit 862274913f ("bus:
uniphier-system-bus: move hardware init from board files").

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-08-18 02:01:14 +09:00
Oleksandr Andrushchenko
60e49ff1f8 xen: Port Xen bus driver from mini-os
Make required updates to run on u-boot and strip test code.

Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
2020-08-14 15:18:30 -04:00
Peng Fan
384d5cfe5d serial: serial_xen: Add Xen PV serial driver
Add support for Xen para-virtualized serial driver. This
driver fully supports serial console for the virtual machine.

Please note that as the driver is initialized late, so no banner
nor memory size is visible.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-14 15:18:30 -04:00
Oleksandr Andrushchenko
486544161f xen: Port Xen hypervisor related code from mini-os
Port hypervisor related code from Mini-OS. This is referencing the code
of Mini-OS from [1] by Huang Shijie and Volodymyr Babchuk which is for
ARM64.
Update essential arch code to support required bit operations, memory
barriers etc.

Copyright for the bits ported belong to at least the following authors,
please see related files for details:

Copyright (c) 2002-2003, K A Fraser
Copyright (c) 2005, Grzegorz Milos, gm281@cam.ac.uk,Intel Research Cambridge
Copyright (c) 2014, Karim Allah Ahmed <karim.allah.ahmed@gmail.com>

[1] - https://github.com/zyzii/mini-os.git

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
[trini: Drop wmb() from musb-net/linux-compat.h now]
Signed-off-by: Tom Rini <trini@konsulko.com>
2020-08-14 15:18:30 -04:00
Andrii Anisov
770a8eef3e board: Introduce xenguest_arm64 board
Introduce a minimal Xen guest board running as a virtual
machine under Xen Project's hypervisor [1], [2].

Part of the code is ported from Xen mini-os and also uses
work initially done by different authors from NXP: please see
relevant files for their copyrights.

[1] https://xenbits.xen.org
[2] https://wiki.xenproject.org/

Signed-off-by: Andrii Anisov <andrii_anisov@epam.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
2020-08-14 15:18:27 -04:00
Chia-Wei, Wang
98ef128b56 include/configs: aspeed: Remove hardcoded variables
The hardcoded platform variables such as DRAM base address are not
common to Aspeed SoCs AST24xx/AST25xx/AST26xx. This patch replaces
those hardcoded with macros defined in a newly added header, where
the basic SoC HW information are assigned accordingly.

Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
2020-08-14 09:46:40 -04:00
Chia-Wei, Wang
c16f518a79 cosmetic: aspeed: ast2500: Rename board file
Rename the ast2500-board.c to board_common.c and
place the renamed file under the ast2500 folder.

Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
2020-08-14 09:46:40 -04:00
Chia-Wei, Wang
611fe09577 aspeed: ast2500: Add lowlevel_init assembly
The original lowlevel_init function of AST2500 is written
in C. However, the C runtime environment is not ready until
_main execution.

This patch adds the assembly version of the lowlevel_init
function. Additional initialization to DRAM configuration
and LPC reset source are also added.

Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
2020-08-14 09:46:40 -04:00
Heinrich Schuchardt
7c6ca03eae riscv: additional crash information
If an exception occurs, the relocated program counter and return address
are required for an analysis.

With this patch you get:

    => exception undefined

    Unhandled exception: Illegal instruction
    EPC: 0000000080595908 RA: 000000008059c0c6 TVAL: 000000008030c01e
    EPC: 0000000080007908 RA: 000000008000e0c6 reloc adjusted

We can use the relocated addresses to find the involved functions in
u.boot.map:

    .text.do_undefined
                0x0000000080007908        0x8 cmd/built-in.o
    .text.cmd_process
                0x000000008000dfcc      0x11a common/built-in.o
                0x000000008000dfcc                cmd_process

If an exception occurs in an UEFI binary additionally the load addresses of
the UEFI binaries are needed. With this patch:

    => setenv efi_selftest exception
    => bootefi selftest

    Unhandled exception: Illegal instruction
    EPC: 000000008042e18a RA: 000000008042e18a TVAL: 000000008030c01e
    EPC: 000000007fea018a RA: 000000007fea018a reloc adjusted

    UEFI image [0x0000000000000000:0xffffffffffffffff] '/\selftest'
    UEFI image [0x000000008042e000:0x000000008042e43f] pc=0x18a '/bug.efi'

The value pc=0x18a matches the position of the illegal instruction in
efi_selftest_miniapp_exception.efi (loaded as /bug.efi);

    asm volatile (".word 0xffffffff\n");

    00000180   93 85 C5 11  1C 64 22 85  82 97 FF FF  FF FF 1C 64

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Tested-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Rick Chen <rick@andestech.com>
2020-08-14 14:39:41 +08:00
Heinrich Schuchardt
6a43e3a167 riscv: sifive: fu540: redundant initialization
We should not initialize a variable if the value is overwritten before
being read.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Tested-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Rick Chen <rick@andestech.com>
2020-08-14 14:39:14 +08:00
Heinrich Schuchardt
023dba1366 riscv: remove redundant logical constraint.
After

    if (ret) return ret;

we know that ret is zero. Don't check it again.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Rick Chen <rick@andestech.com>
2020-08-14 14:39:09 +08:00