[U-Boot] [PATCH] tools: remove mpc86x_clk tool

[Masahiro Yamada]

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 at socionext.com>
Cc: Pantelis Antoniou <panto at intracom.gr>
---

 tools/.gitignore   |   1 -
 tools/Makefile     |   4 --
 tools/mpc86x_clk.c | 202 -----------------------------------------------------
 3 files changed, 207 deletions(-)
 delete mode 100644 tools/mpc86x_clk.c

diff --git a/tools/.gitignore b/tools/.gitignore
index 9bc9fec..eb1a27e 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -11,7 +11,6 @@
 /mkenvimage
 /mkimage
 /mkexynosspl
-/mpc86x_clk
 /mxsboot
 /mksunxiboot
 /ncb
diff --git a/tools/Makefile b/tools/Makefile
index 98414f7..d154464 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -167,10 +167,6 @@ HOSTCFLAGS_md5.o := -pedantic
 HOSTCFLAGS_sha1.o := -pedantic
 HOSTCFLAGS_sha256.o := -pedantic
 
-# Don't build by default
-#hostprogs-$(CONFIG_PPC) += mpc86x_clk
-#HOSTCFLAGS_mpc86x_clk.o := -pedantic
-
 quiet_cmd_wrap = WRAP    $@
 cmd_wrap = echo "\#include <../$(patsubst $(obj)/%,%,$@)>" >$@
 
diff --git a/tools/mpc86x_clk.c b/tools/mpc86x_clk.c
deleted file mode 100644
index 9f662f7..0000000
--- a/tools/mpc86x_clk.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * (C) Copyright 2003 Intracom S.A.
- * Pantelis Antoniou <panto at intracom.gr>
- *
- * This little program makes an exhaustive search for the
- * correct terms of pdf, mfi, mfn, mfd, s, dbrmo, in PLPRCR.
- * The goal is to produce a gclk2 from a xin input, while respecting
- * all the restrictions on their combination.
- *
- * Generaly you select the first row of the produced table.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#define DPREF_MIN	 10000000
-#define DPREF_MAX	 32000000
-
-#define DPGDCK_MAX	320000000
-#define DPGDCK_MIN	160000000
-
-#define S_MIN		0
-#define S_MAX		2
-
-#define MFI_MIN		5
-#define MFI_MAX		15
-
-#define MFN_MIN		0
-#define MFN_MAX		15
-
-#define MFD_MIN		0
-#define MFD_MAX		31
-
-#define MF_MIN		5
-#define MF_MAX		15
-
-#define PDF_MIN		0
-#define PDF_MAX		15
-
-#define GCLK2_MAX	150000000
-
-static int calculate (int xin, int target_clock,
-		      int ppm, int pdf, int mfi, int mfn, int mfd, int s,
-		      int *dprefp, int *dpgdckp, int *jdbckp,
-		      int *gclk2p, int *dbrmop)
-{
-	unsigned int dpref, dpgdck, jdbck, gclk2, t1, t2, dbrmo;
-
-	/* valid MFI? */
-	if (mfi < MFI_MIN)
-		return -1;
-
-	/* valid num, denum? */
-	if (mfn > 0 && mfn >= mfd)
-		return -1;
-
-	dpref = xin / (pdf + 1);
-
-	/* valid dpef? */
-	if (dpref < DPREF_MIN || dpref > DPREF_MAX)
-		return -1;
-
-	if (mfn == 0) {
-		dpgdck  = (2 * mfi * xin) / (pdf + 1) ;
-		dbrmo = 0;
-	} else {
-		/* 5 <= mfi + (mfn / mfd + 1) <= 15 */
-		t1 = mfd + 1;
-		t2 = mfi * t1 + mfn;
-		if ( MF_MIN * t1 > t2 || MF_MAX * t1 < t2)
-			return -1;
-
-		dpgdck  = (unsigned int)(2 * (mfi * mfd + mfi + mfn) *
-				(unsigned int)xin) /
-				((mfd + 1) * (pdf + 1));
-
-		dbrmo = 10 * mfn < (mfd + 1);
-	}
-
-	/* valid dpgclk? */
-	if (dpgdck < DPGDCK_MIN || dpgdck > DPGDCK_MAX)
-		return -1;
-
-	jdbck = dpgdck >> s;
-	gclk2 = jdbck / 2;
-
-	/* valid gclk2 */
-	if (gclk2 > GCLK2_MAX)
-		return -1;
-
-	t1 = abs(gclk2 - target_clock);
-
-	/* XXX max 1MHz dev. in clock */
-	if (t1 > 1000000)
-		return -1;
-
-	/* dev within range (XXX gclk2 scaled to avoid overflow) */
-	if (t1 * 1000 > (unsigned int)ppm * (gclk2 / 1000))
-		return -1;
-
-	*dprefp = dpref;
-	*dpgdckp = dpgdck;
-	*jdbckp = jdbck;
-	*gclk2p = gclk2;
-	*dbrmop = dbrmo;
-
-	return gclk2;
-}
-
-int conf_clock(int xin, int target_clock, int ppm)
-{
-	int pdf, s, mfn, mfd, mfi;
-	int dpref, dpgdck, jdbck, gclk2, xout, dbrmo;
-	int found = 0;
-
-	/* integer multipliers */
-	for (pdf = PDF_MIN; pdf <= PDF_MAX; pdf++) {
-		for (mfi = MFI_MIN; mfi <= MFI_MAX; mfi++) {
-			for (s = 0; s <= S_MAX; s++) {
-				xout = calculate(xin, target_clock,
-						 ppm, pdf, mfi, 0, 0, s,
-						 &dpref, &dpgdck, &jdbck,
-						 &gclk2, &dbrmo);
-				if (xout < 0)
-					continue;
-
-				if (found == 0) {
-					printf("pdf mfi mfn mfd s dbrmo     dpref    dpgdck     jdbck     gclk2 exact?\n");
-					printf("--- --- --- --- - -----     -----    ------     -----     ----- ------\n");
-				}
-
-				printf("%3d %3d --- --- %1d %5d %9d %9d %9d %9d%s\n",
-					pdf, mfi, s, dbrmo,
-					dpref, dpgdck, jdbck, gclk2,
-					gclk2 == target_clock ? "    YES" : "");
-
-				found++;
-			}
-		}
-	}
-
-	/* fractional multipliers */
-	for (pdf = PDF_MIN; pdf <= PDF_MAX; pdf++) {
-		for (mfi = MFI_MIN; mfi <= MFI_MAX; mfi++) {
-			for (mfn = 1; mfn <= MFN_MAX; mfn++) {
-				for (mfd = 1; mfd <= MFD_MAX; mfd++) {
-					for (s = 0; s <= S_MAX; s++) {
-						xout = calculate(xin, target_clock,
-							    ppm, pdf, mfi, mfn, mfd, s,
-							    &dpref, &dpgdck, &jdbck,
-							    &gclk2, &dbrmo);
-						if (xout < 0)
-							continue;
-
-						if (found == 0) {
-							printf("pdf mfi mfn mfd s dbrmo     dpref    dpgdck     jdbck     gclk2 exact?\n");
-							printf("--- --- --- --- - -----     -----    ------     -----     ----- ------\n");
-						}
-
-						printf("%3d %3d %3d %3d %1d %5d %9d %9d %9d %9d%s\n",
-							pdf, mfi, mfn, mfd, s,
-							dbrmo, dpref, dpgdck, jdbck, gclk2,
-							gclk2 == target_clock ? "    YES" : "");
-
-						found++;
-					}
-				}
-			}
-
-		}
-	}
-
-	return found;
-}
-
-int main(int argc, char *argv[])
-{
-	int xin, want_gclk2, found, ppm = 100;
-
-	if (argc < 3) {
-		fprintf(stderr, "usage: mpc86x_clk <xin> <want_gclk2> [ppm]\n");
-		fprintf(stderr, "       default ppm is 100\n");
-		return 10;
-	}
-
-	xin  = atoi(argv[1]);
-	want_gclk2 = atoi(argv[2]);
-	if (argc >= 4)
-		ppm = atoi(argv[3]);
-
-	found = conf_clock(xin, want_gclk2, ppm);
-	if (found <= 0) {
-		fprintf(stderr, "cannot produce gclk2 %d from xin %d\n",
-			want_gclk2, xin);
-		return EXIT_FAILURE;
-	}
-
-	return EXIT_SUCCESS;
-}
-- 
1.9.1