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Harald Seiler 35b65dd8ef reset: Remove addr parameter from reset_cpu() 
Historically, the reset_cpu() function had an `addr` parameter which was
meant to pass in an address of the reset vector location, where the CPU
should reset to.  This feature is no longer used anywhere in U-Boot as
all reset_cpu() implementations now ignore the passed value.  Generic
code has been added which always calls reset_cpu() with `0` which means
this feature can no longer be used easily anyway.

Over time, many implementations seem to have "misunderstood" the
existence of this parameter as a way to customize/parameterize the reset
(e.g.  COLD vs WARM resets).  As this is not properly supported, the
code will almost always not do what it is intended to (because all
call-sites just call reset_cpu() with 0).

To avoid confusion and to clean up the codebase from unused left-overs
of the past, remove the `addr` parameter entirely.  Code which intends
to support different kinds of resets should be rewritten as a sysreset
driver instead.

This transformation was done with the following coccinelle patch:

    @@
    expression argvalue;
    @@
    - reset_cpu(argvalue)
    + reset_cpu()

    @@
    identifier argname;
    type argtype;
    @@
    - reset_cpu(argtype argname)
    + reset_cpu(void)
    { ... }

Signed-off-by: Harald Seiler <hws@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-02 14:03:02 -05:00
..
cpu.h arm: add initial support for the Phytium Durian Board 2019-11-07 18:01:13 -05:00
durian.c reset: Remove addr parameter from reset_cpu() 2021-03-02 14:03:02 -05:00
Kconfig arm: add initial support for the Phytium Durian Board 2019-11-07 18:01:13 -05:00
MAINTAINERS arm: add initial support for the Phytium Durian Board 2019-11-07 18:01:13 -05:00
Makefile arm: add initial support for the Phytium Durian Board 2019-11-07 18:01:13 -05:00
README arm: add initial support for the Phytium Durian Board 2019-11-07 18:01:13 -05:00

README 

Here is the step-by-step to boot U-Boot on phytium durian board.

Compile U-Boot
==============
  > make durian_defconfig
  > make

Get the prebuild binary about BPF
=================================
  > cd ../
  > git clone https://github.com/phytium-durian/bpf.git

Package the image
=================
  > cd bpf
  > cp ../u-boot/u-boot.bin ./
  > ./dopack

  The fip-all.bin is the final image.

Flash the image into the spi nor-flash
======================================
  Any spi nor-flash and appropriate tool can be used to flash.
  For example, we choose the S25FL256 chip that produced from
  SPANSION company and EZP_XPro V1.2.

Reset the board, you can get U-Boot log message from boot console:

Power on...
Start pcie setup!
End pcie setup!
Start ddr setup!
End ddr setup!
Jump to entrypoint: 0x500000

U-Boot 2019.10-00594-g9ccc1b17ea-dirty (Oct 18 2019 - 00:17:09 +0800)

DRAM:  1.9 GiB
In:    uart@28001000
Out:   uart@28001000
Err:   uart@28001000
scanning bus for devices...
Target spinup took 0 ms.
SATA link 1 timeout.
SATA link 2 timeout.
SATA link 3 timeout.
AHCI 0001.0000 32 slots 4 ports 6 Gbps 0xf impl SATA mode
flags: 64bit ncq led only pmp fbss pio slum part sxs
  Device 0: (0:0) Vendor: ATA Prod.: ST1000DM010-2EP1 Rev: CC43
            Type: Hard Disk
            Capacity: 953869.7 MB = 931.5 GB (1953525168 x 512)
SATA link 0 timeout.
SATA link 1 timeout.
SATA link 2 timeout.
SATA link 3 timeout.
AHCI 0001.0000 32 slots 4 ports 6 Gbps 0xf impl SATA mode
flags: 64bit ncq led only pmp fbss pio slum part sxs
Hit any key to stop autoboot:  0
durian#