[U-Boot,v2,2/3] arm64: zynqmp: add tool to minimize psu_init_gpl.c files

This script transforms a pair of psu_init_gpl.c and .h files produced by
the Xilinx Vivado tool for ZynqMP into a smaller psu_init_gpl.c file that
is almost checkpatch compliant.

Based on a script by Michal Simek.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>

---

Changes v1 -> v2:
 - document that is INPUT_DIR==OUTPUT_DIR then psu_init_gpl.c is overwritten
 - minor improvement to commit message
 - show help text if script is called without parameters (Michal)
---
 tools/zynqmp_psu_init_minimize.sh | 145 ++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100755 tools/zynqmp_psu_init_minimize.sh

On 24. 05. 19 15:40, Luca Ceresoli wrote:
> This script transforms a pair of psu_init_gpl.c and .h files produced by
> the Xilinx Vivado tool for ZynqMP into a smaller psu_init_gpl.c file that
> is almost checkpatch compliant.
> 
> Based on a script by Michal Simek.
> 
> Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
> 
> ---
> 
> Changes v1 -> v2:
>  - document that is INPUT_DIR==OUTPUT_DIR then psu_init_gpl.c is overwritten
>  - minor improvement to commit message
>  - show help text if script is called without parameters (Michal)
> ---
>  tools/zynqmp_psu_init_minimize.sh | 145 ++++++++++++++++++++++++++++++
>  1 file changed, 145 insertions(+)
>  create mode 100755 tools/zynqmp_psu_init_minimize.sh
> 
> diff --git a/tools/zynqmp_psu_init_minimize.sh b/tools/zynqmp_psu_init_minimize.sh
> new file mode 100755
> index 000000000000..b0a07f9080a6
> --- /dev/null
> +++ b/tools/zynqmp_psu_init_minimize.sh
> @@ -0,0 +1,145 @@
> +#!/bin/bash
> +# SPDX-License-Identifier: GPL-2.0+
> +# Copyright (C) 2018 Michal Simek <michal.simek@xilinx.com>
> +# Copyright (C) 2019 Luca Ceresoli <luca@lucaceresoli.net>
> +
> +usage()
> +{
> +    cat <<EOF
> +
> +Transform a pair of psu_init_gpl.c and .h files produced by the Xilinx
> +Vivado tool for ZynqMP into a smaller psu_init_gpl.c file that is almost
> +checkpatch compliant. Minor coding style might still be needed. Must be
> +run from the top-level U-Boot source directory.
> +
> +Usage:   zynqmp_psu_init_minimize.sh INPUT_DIR OUTPUT_DIR
> +Example: zynqmp_psu_init_minimize.sh \\
> +                 /path/to/original/psu_init_gpl_c_and_h/ \\
> +                 board/xilinx/zynqmp/<my_board>/
> +
> +Notes:   INPUT_DIR must contain both .c and .h files.
> +         If INPUT_DIR and OUTPUT_DIR are the same directory,
> +         psu_init_gpl.c will be overwritten.
> +
> +EOF
> +}
> +
> +set -o errexit -o errtrace
> +set -o nounset
> +
> +if [ $# -ne 2 ]
> +then
> +    usage >&2
> +    exit 1
> +fi
> +
> +IN="${1}/psu_init_gpl.c"
> +OUT="${2}/psu_init_gpl.c"
> +TMP=$(mktemp /tmp/psu_init_gpl.XXXXXX)
> +trap "rm ${TMP}" ERR
> +
> +# Step through a temp file to allow both $IN!=$OUT and $IN==$OUT
> +sed -e '/sleep.h/d' \
> +    -e '/xil_io.h/d' \
> +    ${IN} >${TMP}
> +cp ${TMP} ${OUT}
> +
> +# preprocess to expand defines, then remove cpp lines starting with '#'
> +gcc -I${1} -E ${OUT} -o ${TMP}
> +sed '/^#/d' ${TMP} >${OUT}
> +
> +# Remove trivial code before psu_pll_init_data()
> +sed -ni '/psu_pll_init_data/,$p' ${OUT}
> +
> +# Functions are lowercase in U-Boot, rename them
> +sed -i 's/PSU_Mask_Write/psu_mask_write/g' ${OUT}
> +sed -i 's/mask_pollOnValue/mask_pollonvalue/g' ${OUT}
> +sed -i 's/RegValue/regvalue/g' ${OUT}
> +sed -i 's/MaskStatus/maskstatus/g' ${OUT}
> +
> +sed -i '/&= psu_peripherals_powerdwn_data()/d' ${OUT}
> +
> +FUNCS_TO_REMOVE="psu_protection
> +psu_..._protection
> +psu_init_xppu_aper_ram
> +mask_delay(u32
> +mask_read(u32
> +dpll_prog
> +mask_poll(u32
> +mask_pollonvalue(u32
> +psu_ps_pl_reset_config_data
> +psu_ps_pl_isolation_removal_data
> +psu_apply_master_tz
> +psu_post_config_data
> +psu_post_config_data
> +psu_peripherals_powerdwn_data
> +psu_init_ddr_self_refresh
> +xmpu
> +xppu
> +"
> +for i in $FUNCS_TO_REMOVE; do
> +sed -i "/$i/,/^}$/d" ${OUT}
> +done
> +
> +scripts/Lindent ${OUT}
> +
> +# Prepend 'static' to internal functions
> +sed -i 's/^.*data(void)$/static &/g' ${OUT}
> +sed -i 's/^.*psu_afi_config(void)$/static &/g' ${OUT}
> +sed -i 's/^void init_peripheral/static &/g' ${OUT}
> +sed -i 's/^int serdes/static &/g' ${OUT}
> +sed -i 's/^int init_serdes/static &/g' ${OUT}
> +sed -i 's/^unsigned long /static &/g' ${OUT}
> +
> +sed -i 's/()$/(void)/g' ${OUT}
> +sed -i 's/0X/0x/g' ${OUT}
> +
> +# Add header
> +cat << EOF >${TMP}
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
> + */
> +
> +#include <asm/arch/psu_init_gpl.h>
> +#include <xil_io.h>
> +
> +EOF
> +
> +cat ${OUT} >>${TMP}
> +cp ${TMP} ${OUT}
> +
> +# Temporarily convert newlines to do some mangling across lines
> +tr "\n" "\r" <${OUT} >${TMP}
> +
> +# Cleanup empty loops. E.g.:
> +# |while (e) {|
> +# |           | ==> |while (e)|
> +# |    }      |     |    ;    |
> +# |           |
> +sed -i -r 's| \{\r+(\t*)\}\r\r|\n\1\t;\n|g' ${TMP}
> +
> +# Remove empty line between variable declaration
> +sed -i -r 's|\r(\r\t(unsigned )?int )|\1|g' ${TMP}
> +
> +# Remove empty lines at function beginning/end
> +sed -i -e 's|\r{\r\r|\r{\r|g' ${TMP}
> +sed -i -e 's|\r\r}\r|\r}\r|g' ${TMP}
> +
> +# Remove empty lines after '{' line
> +sed -i -e 's| {\r\r| {\r|g' ${TMP}
> +
> +# Remove braces {} around single statement blocks. E.g.:
> +# | while (e) { |    | while (e) |
> +# |     stg();  | => |     stg();|
> +# | }           |
> +sed -i -r 's| \{(\r[^\r]*;)\r\t*\}|\1|g' ${TMP}
> +
> +# Remove Unnecessary parentheses around 'n_code <= 0x3C' and similar. E.g.:
> +# if ((p_code >= 0x26) && ...) -> if (p_code >= 0x26 && ...)
> +sed -i -r 's|\((._code .= [x[:xdigit:]]+)\)|\1|g' ${TMP}
> +
> +# Convert back newlines
> +tr "\r" "\n" <${TMP} >${OUT}
> +
> +rm ${TMP}
> 

Applied.
M