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https://github.com/AsahiLinux/u-boot
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tools: remove mpc86x_clk tool
This is commented out in the Makefile for more than 10 years. I assume it is proof that this tool is unused. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Pantelis Antoniou <panto@intracom.gr>
This commit is contained in:
Masahiro Yamada
Tom Rini
parent
b38ecd6fbe
commit
9c57487752
3 changed files with 0 additions and 207 deletions
1
tools/.gitignore
vendored
1
tools/.gitignore
vendored
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@ -11,7 +11,6 @@
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/mkenvimage
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/mkenvimage
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/mkimage
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/mkimage
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/mkexynosspl
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/mkexynosspl
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/mpc86x_clk
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/mxsboot
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/mxsboot
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/mksunxiboot
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/mksunxiboot
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/ncb
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/ncb
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@ -167,10 +167,6 @@ HOSTCFLAGS_md5.o := -pedantic
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HOSTCFLAGS_sha1.o := -pedantic
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HOSTCFLAGS_sha1.o := -pedantic
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HOSTCFLAGS_sha256.o := -pedantic
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HOSTCFLAGS_sha256.o := -pedantic
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# Don't build by default
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#hostprogs-$(CONFIG_PPC) += mpc86x_clk
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#HOSTCFLAGS_mpc86x_clk.o := -pedantic
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quiet_cmd_wrap = WRAP $@
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quiet_cmd_wrap = WRAP $@
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cmd_wrap = echo "\#include <../$(patsubst $(obj)/%,%,$@)>" >$@
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cmd_wrap = echo "\#include <../$(patsubst $(obj)/%,%,$@)>" >$@
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@ -1,202 +0,0 @@
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/*
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* (C) Copyright 2003 Intracom S.A.
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* Pantelis Antoniou <panto@intracom.gr>
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*
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* This little program makes an exhaustive search for the
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* correct terms of pdf, mfi, mfn, mfd, s, dbrmo, in PLPRCR.
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* The goal is to produce a gclk2 from a xin input, while respecting
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* all the restrictions on their combination.
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*
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* Generaly you select the first row of the produced table.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#define DPREF_MIN 10000000
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#define DPREF_MAX 32000000
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#define DPGDCK_MAX 320000000
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#define DPGDCK_MIN 160000000
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#define S_MIN 0
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#define S_MAX 2
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#define MFI_MIN 5
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#define MFI_MAX 15
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#define MFN_MIN 0
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#define MFN_MAX 15
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#define MFD_MIN 0
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#define MFD_MAX 31
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#define MF_MIN 5
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#define MF_MAX 15
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#define PDF_MIN 0
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#define PDF_MAX 15
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#define GCLK2_MAX 150000000
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static int calculate (int xin, int target_clock,
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int ppm, int pdf, int mfi, int mfn, int mfd, int s,
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int *dprefp, int *dpgdckp, int *jdbckp,
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int *gclk2p, int *dbrmop)
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{
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unsigned int dpref, dpgdck, jdbck, gclk2, t1, t2, dbrmo;
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/* valid MFI? */
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if (mfi < MFI_MIN)
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return -1;
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/* valid num, denum? */
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if (mfn > 0 && mfn >= mfd)
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return -1;
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dpref = xin / (pdf + 1);
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/* valid dpef? */
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if (dpref < DPREF_MIN || dpref > DPREF_MAX)
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return -1;
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if (mfn == 0) {
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dpgdck = (2 * mfi * xin) / (pdf + 1) ;
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dbrmo = 0;
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} else {
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/* 5 <= mfi + (mfn / mfd + 1) <= 15 */
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t1 = mfd + 1;
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t2 = mfi * t1 + mfn;
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if ( MF_MIN * t1 > t2 || MF_MAX * t1 < t2)
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return -1;
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dpgdck = (unsigned int)(2 * (mfi * mfd + mfi + mfn) *
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(unsigned int)xin) /
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((mfd + 1) * (pdf + 1));
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dbrmo = 10 * mfn < (mfd + 1);
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}
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/* valid dpgclk? */
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if (dpgdck < DPGDCK_MIN || dpgdck > DPGDCK_MAX)
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return -1;
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jdbck = dpgdck >> s;
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gclk2 = jdbck / 2;
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/* valid gclk2 */
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if (gclk2 > GCLK2_MAX)
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return -1;
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t1 = abs(gclk2 - target_clock);
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/* XXX max 1MHz dev. in clock */
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if (t1 > 1000000)
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return -1;
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/* dev within range (XXX gclk2 scaled to avoid overflow) */
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if (t1 * 1000 > (unsigned int)ppm * (gclk2 / 1000))
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return -1;
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*dprefp = dpref;
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*dpgdckp = dpgdck;
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*jdbckp = jdbck;
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*gclk2p = gclk2;
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*dbrmop = dbrmo;
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return gclk2;
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}
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int conf_clock(int xin, int target_clock, int ppm)
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{
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int pdf, s, mfn, mfd, mfi;
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int dpref, dpgdck, jdbck, gclk2, xout, dbrmo;
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int found = 0;
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/* integer multipliers */
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for (pdf = PDF_MIN; pdf <= PDF_MAX; pdf++) {
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for (mfi = MFI_MIN; mfi <= MFI_MAX; mfi++) {
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for (s = 0; s <= S_MAX; s++) {
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xout = calculate(xin, target_clock,
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ppm, pdf, mfi, 0, 0, s,
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&dpref, &dpgdck, &jdbck,
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&gclk2, &dbrmo);
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if (xout < 0)
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continue;
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if (found == 0) {
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printf("pdf mfi mfn mfd s dbrmo dpref dpgdck jdbck gclk2 exact?\n");
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printf("--- --- --- --- - ----- ----- ------ ----- ----- ------\n");
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}
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printf("%3d %3d --- --- %1d %5d %9d %9d %9d %9d%s\n",
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pdf, mfi, s, dbrmo,
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dpref, dpgdck, jdbck, gclk2,
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gclk2 == target_clock ? " YES" : "");
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found++;
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}
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}
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}
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/* fractional multipliers */
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for (pdf = PDF_MIN; pdf <= PDF_MAX; pdf++) {
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for (mfi = MFI_MIN; mfi <= MFI_MAX; mfi++) {
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for (mfn = 1; mfn <= MFN_MAX; mfn++) {
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for (mfd = 1; mfd <= MFD_MAX; mfd++) {
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for (s = 0; s <= S_MAX; s++) {
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xout = calculate(xin, target_clock,
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ppm, pdf, mfi, mfn, mfd, s,
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&dpref, &dpgdck, &jdbck,
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&gclk2, &dbrmo);
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if (xout < 0)
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continue;
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if (found == 0) {
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printf("pdf mfi mfn mfd s dbrmo dpref dpgdck jdbck gclk2 exact?\n");
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printf("--- --- --- --- - ----- ----- ------ ----- ----- ------\n");
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}
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printf("%3d %3d %3d %3d %1d %5d %9d %9d %9d %9d%s\n",
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pdf, mfi, mfn, mfd, s,
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dbrmo, dpref, dpgdck, jdbck, gclk2,
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gclk2 == target_clock ? " YES" : "");
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found++;
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}
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}
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}
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}
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}
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return found;
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}
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int main(int argc, char *argv[])
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{
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int xin, want_gclk2, found, ppm = 100;
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if (argc < 3) {
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fprintf(stderr, "usage: mpc86x_clk <xin> <want_gclk2> [ppm]\n");
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fprintf(stderr, " default ppm is 100\n");
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return 10;
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}
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xin = atoi(argv[1]);
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want_gclk2 = atoi(argv[2]);
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if (argc >= 4)
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ppm = atoi(argv[3]);
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found = conf_clock(xin, want_gclk2, ppm);
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if (found <= 0) {
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fprintf(stderr, "cannot produce gclk2 %d from xin %d\n",
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want_gclk2, xin);
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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