Move all command code into its own directory

There are a lot of unrelated files in common, including all of the commands.
Moving them into their own directory makes them easier to find and is more
logical.

Some commands include non-command code, such as cmd_scsi.c. This should be
sorted out at some point so that the function can be enabled with or without
the associated command.

Unfortunately, with m68k I get this error:

m68k:  +   M5329AFEE
+arch/m68k/cpu/mcf532x/start.o: In function `_start':
+arch/m68k/cpu/mcf532x/start.S:159:(.text+0x452): relocation truncated to fit: R_68K_PC16 against symbol `board_init_f' defined in .text.board_init_f section in common/built-in.o

I hope someone can shed some light on what this means. I hope it isn't
depending on the position of code in the image.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>

1 files changed, 207 insertions, 0 deletions

diff --git a/cmd/cmd_itest.c b/cmd/cmd_itest.c
new file mode 100644
index 00000000000..91ae5c2704c
--- /dev/null
+++ b/cmd/cmd_itest.c
@@ -0,0 +1,207 @@
+/*
+ * (C) Copyright 2003
+ * Tait Electronics Limited, Christchurch, New Zealand
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * This file provides a shell like 'test' function to return
+ * true/false from an integer or string compare of two memory
+ * locations or a location and a scalar/literal.
+ * A few parts were lifted from bash 'test' command
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <mapmem.h>
+
+#include <asm/io.h>
+
+#define EQ	0
+#define NE	1
+#define LT	2
+#define GT	3
+#define LE	4
+#define GE	5
+
+struct op_tbl_s {
+	char	*op;		/* operator string */
+	int	opcode;		/* internal representation of opcode */
+};
+
+typedef struct op_tbl_s op_tbl_t;
+
+static const op_tbl_t op_table [] = {
+	{ "-lt", LT },
+	{ "<"  , LT },
+	{ "-gt", GT },
+	{ ">"  , GT },
+	{ "-eq", EQ },
+	{ "==" , EQ },
+	{ "-ne", NE },
+	{ "!=" , NE },
+	{ "<>" , NE },
+	{ "-ge", GE },
+	{ ">=" , GE },
+	{ "-le", LE },
+	{ "<=" , LE },
+};
+
+static long evalexp(char *s, int w)
+{
+	long l = 0;
+	unsigned long addr;
+	void *buf;
+
+	/* if the parameter starts with a * then assume is a pointer to the value we want */
+	if (s[0] == '*') {
+		addr = simple_strtoul(&s[1], NULL, 16);
+		buf = map_physmem(addr, w, MAP_WRBACK);
+		if (!buf) {
+			puts("Failed to map physical memory\n");
+			return 0;
+		}
+		switch (w) {
+		case 1:
+			l = (long)(*(unsigned char *)buf);
+			break;
+		case 2:
+			l = (long)(*(unsigned short *)buf);
+			break;
+		case 4:
+			l = (long)(*(unsigned long *)buf);
+			break;
+		}
+		unmap_physmem(buf, w);
+		return l;
+	} else {
+		l = simple_strtoul(s, NULL, 16);
+	}
+
+	return l & ((1UL << (w * 8)) - 1);
+}
+
+static char * evalstr(char *s)
+{
+	/* if the parameter starts with a * then assume a string pointer else its a literal */
+	if (s[0] == '*') {
+		return (char *)simple_strtoul(&s[1], NULL, 16);
+	} else if (s[0] == '$') {
+		int i = 2;
+
+		if (s[1] != '{')
+			return NULL;
+
+		while (s[i] != '}') {
+			if (s[i] == 0)
+				return NULL;
+			i++;
+		}
+		s[i] = 0;
+		return  getenv((const char *)&s[2]);
+	} else {
+		return s;
+	}
+}
+
+static int stringcomp(char *s, char *t, int op)
+{
+	int p;
+	char *l, *r;
+
+	l = evalstr(s);
+	r = evalstr(t);
+
+	p = strcmp(l, r);
+	switch (op) {
+	case EQ: return (p == 0);
+	case NE: return (p != 0);
+	case LT: return (p < 0);
+	case GT: return (p > 0);
+	case LE: return (p <= 0);
+	case GE: return (p >= 0);
+	}
+	return (0);
+}
+
+static int arithcomp (char *s, char *t, int op, int w)
+{
+	long l, r;
+
+	l = evalexp (s, w);
+	r = evalexp (t, w);
+
+	switch (op) {
+	case EQ: return (l == r);
+	case NE: return (l != r);
+	case LT: return (l < r);
+	case GT: return (l > r);
+	case LE: return (l <= r);
+	case GE: return (l >= r);
+	}
+	return (0);
+}
+
+static int binary_test(char *op, char *arg1, char *arg2, int w)
+{
+	int len, i;
+	const op_tbl_t *optp;
+
+	len = strlen(op);
+
+	for (optp = (op_tbl_t *)&op_table, i = 0;
+	     i < ARRAY_SIZE(op_table);
+	     optp++, i++) {
+
+		if ((strncmp (op, optp->op, len) == 0) && (len == strlen (optp->op))) {
+			if (w == 0) {
+				return (stringcomp(arg1, arg2, optp->opcode));
+			} else {
+				return (arithcomp (arg1, arg2, optp->opcode, w));
+			}
+		}
+	}
+
+	printf("Unknown operator '%s'\n", op);
+	return 0;	/* op code not found */
+}
+
+/* command line interface to the shell test */
+static int do_itest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int	value, w;
+
+	/* Validate arguments */
+	if ((argc != 4))
+		return CMD_RET_USAGE;
+
+	/* Check for a data width specification.
+	 * Defaults to long (4) if no specification.
+	 * Uses -2 as 'width' for .s (string) so as not to upset existing code
+	 */
+	switch (w = cmd_get_data_size(argv[0], 4)) {
+	case 1:
+	case 2:
+	case 4:
+		value = binary_test (argv[2], argv[1], argv[3], w);
+		break;
+	case -2:
+		value = binary_test (argv[2], argv[1], argv[3], 0);
+		break;
+	case -1:
+	default:
+		puts("Invalid data width specifier\n");
+		value = 0;
+		break;
+	}
+
+	return !value;
+}
+
+U_BOOT_CMD(
+	itest, 4, 0, do_itest,
+	"return true/false on integer compare",
+	"[.b, .w, .l, .s] [*]value1 <op> [*]value2"
+);