Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 310 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/common/cmd_log.c b/qemu/roms/u-boot/common/cmd_log.c
new file mode 100644
index 000000000..38d0f5edf
--- /dev/null
+++ b/qemu/roms/u-boot/common/cmd_log.c
@@ -0,0 +1,310 @@
+/*
+ * (C) Copyright 2002-2007
+ * Detlev Zundel, DENX Software Engineering, dzu@denx.de.
+ *
+ * Code used from linux/kernel/printk.c
+ * Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Comments:
+ *
+ * After relocating the code, the environment variable "loglevel" is
+ * copied to console_loglevel.  The functionality is similar to the
+ * handling in the Linux kernel, i.e. messages logged with a priority
+ * less than console_loglevel are also output to stdout.
+ *
+ * If you want messages with the default level (e.g. POST messages) to
+ * appear on stdout also, make sure the environment variable
+ * "loglevel" is set at boot time to a number higher than
+ * default_message_loglevel below.
+ */
+
+/*
+ * Logbuffer handling routines
+ */
+
+#include <common.h>
+#include <command.h>
+#include <stdio_dev.h>
+#include <post.h>
+#include <logbuff.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Local prototypes */
+static void logbuff_putc(const char c);
+static void logbuff_puts(const char *s);
+static int logbuff_printk(const char *line);
+
+static char buf[1024];
+
+/* This combination will not print messages with the default loglevel */
+static unsigned console_loglevel = 3;
+static unsigned default_message_loglevel = 4;
+static unsigned log_version = 1;
+#ifdef CONFIG_ALT_LB_ADDR
+static volatile logbuff_t *log;
+#else
+static logbuff_t *log;
+#endif
+static char *lbuf;
+
+unsigned long __logbuffer_base(void)
+{
+	return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
+}
+unsigned long logbuffer_base(void)
+__attribute__((weak, alias("__logbuffer_base")));
+
+void logbuff_init_ptrs(void)
+{
+	unsigned long tag, post_word;
+	char *s;
+
+#ifdef CONFIG_ALT_LB_ADDR
+	log = (logbuff_t *)CONFIG_ALT_LH_ADDR;
+	lbuf = (char *)CONFIG_ALT_LB_ADDR;
+#else
+	log = (logbuff_t *)(logbuffer_base()) - 1;
+	lbuf = (char *)log->buf;
+#endif
+
+	/* Set up log version */
+	if ((s = getenv ("logversion")) != NULL)
+		log_version = (int)simple_strtoul(s, NULL, 10);
+
+	if (log_version == 2)
+		tag = log->v2.tag;
+	else
+		tag = log->v1.tag;
+	post_word = post_word_load();
+#ifdef CONFIG_POST
+	/* The post routines have setup the word so we can simply test it */
+	if (tag != LOGBUFF_MAGIC || (post_word & POST_COLDBOOT))
+		logbuff_reset();
+#else
+	/* No post routines, so we do our own checking                    */
+	if (tag != LOGBUFF_MAGIC || post_word != LOGBUFF_MAGIC) {
+		logbuff_reset ();
+		post_word_store (LOGBUFF_MAGIC);
+	}
+#endif
+	if (log_version == 2 && (long)log->v2.start > (long)log->v2.con)
+		log->v2.start = log->v2.con;
+
+	/* Initialize default loglevel if present */
+	if ((s = getenv ("loglevel")) != NULL)
+		console_loglevel = (int)simple_strtoul(s, NULL, 10);
+
+	gd->flags |= GD_FLG_LOGINIT;
+}
+
+void logbuff_reset(void)
+{
+#ifndef CONFIG_ALT_LB_ADDR
+	memset(log, 0, sizeof(logbuff_t));
+#endif
+	if (log_version == 2) {
+		log->v2.tag = LOGBUFF_MAGIC;
+#ifdef CONFIG_ALT_LB_ADDR
+		log->v2.start = 0;
+		log->v2.con = 0;
+		log->v2.end = 0;
+		log->v2.chars = 0;
+#endif
+	} else {
+		log->v1.tag = LOGBUFF_MAGIC;
+#ifdef CONFIG_ALT_LB_ADDR
+		log->v1.dummy = 0;
+		log->v1.start = 0;
+		log->v1.size = 0;
+		log->v1.chars = 0;
+#endif
+	}
+}
+
+int drv_logbuff_init(void)
+{
+	struct stdio_dev logdev;
+	int rc;
+
+	/* Device initialization */
+	memset (&logdev, 0, sizeof (logdev));
+
+	strcpy (logdev.name, "logbuff");
+	logdev.ext   = 0;			/* No extensions */
+	logdev.flags = DEV_FLAGS_OUTPUT;	/* Output only */
+	logdev.putc  = logbuff_putc;		/* 'putc' function */
+	logdev.puts  = logbuff_puts;		/* 'puts' function */
+
+	rc = stdio_register(&logdev);
+
+	return (rc == 0) ? 1 : rc;
+}
+
+static void logbuff_putc(const char c)
+{
+	char buf[2];
+	buf[0] = c;
+	buf[1] = '\0';
+	logbuff_printk(buf);
+}
+
+static void logbuff_puts(const char *s)
+{
+	logbuff_printk (s);
+}
+
+void logbuff_log(char *msg)
+{
+	if ((gd->flags & GD_FLG_LOGINIT)) {
+		logbuff_printk(msg);
+	} else {
+		/*
+		 * Can happen only for pre-relocated errors as logging
+		 * at that stage should be disabled
+		 */
+		puts (msg);
+	}
+}
+
+/*
+ * Subroutine:  do_log
+ *
+ * Description: Handler for 'log' command..
+ *
+ * Inputs:	argv[1] contains the subcommand
+ *
+ * Return:      None
+ *
+ */
+int do_log(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	char *s;
+	unsigned long i, start, size;
+
+	if (strcmp(argv[1], "append") == 0) {
+		/* Log concatenation of all arguments separated by spaces */
+		for (i = 2; i < argc; i++) {
+			logbuff_printk(argv[i]);
+			logbuff_putc((i < argc - 1) ? ' ' : '\n');
+		}
+		return 0;
+	}
+
+	switch (argc) {
+
+	case 2:
+		if (strcmp(argv[1], "show") == 0) {
+			if (log_version == 2) {
+				start = log->v2.start;
+				size = log->v2.end - log->v2.start;
+			} else {
+				start = log->v1.start;
+				size = log->v1.size;
+			}
+			if (size > LOGBUFF_LEN)
+				size = LOGBUFF_LEN;
+			for (i = 0; i < size; i++) {
+				s = lbuf + ((start + i) & LOGBUFF_MASK);
+				putc(*s);
+			}
+			return 0;
+		} else if (strcmp(argv[1], "reset") == 0) {
+			logbuff_reset();
+			return 0;
+		} else if (strcmp(argv[1], "info") == 0) {
+			printf("Logbuffer   at  %08lx\n", (unsigned long)lbuf);
+			if (log_version == 2) {
+				printf("log_start    =  %08lx\n",
+					log->v2.start);
+				printf("log_end      =  %08lx\n", log->v2.end);
+				printf("log_con      =  %08lx\n", log->v2.con);
+				printf("logged_chars =  %08lx\n",
+					log->v2.chars);
+			}
+			else {
+				printf("log_start    =  %08lx\n",
+					log->v1.start);
+				printf("log_size     =  %08lx\n",
+					log->v1.size);
+				printf("logged_chars =  %08lx\n",
+					log->v1.chars);
+			}
+			return 0;
+		}
+		return CMD_RET_USAGE;
+
+	default:
+		return CMD_RET_USAGE;
+	}
+}
+
+U_BOOT_CMD(
+	log,     255,	1,	do_log,
+	"manipulate logbuffer",
+	"info   - show pointer details\n"
+	"log reset  - clear contents\n"
+	"log show   - show contents\n"
+	"log append <msg> - append <msg> to the logbuffer"
+);
+
+static int logbuff_printk(const char *line)
+{
+	int i;
+	char *msg, *p, *buf_end;
+	int line_feed;
+	static signed char msg_level = -1;
+
+	strcpy(buf + 3, line);
+	i = strlen(line);
+	buf_end = buf + 3 + i;
+	for (p = buf + 3; p < buf_end; p++) {
+		msg = p;
+		if (msg_level < 0) {
+			if (
+				p[0] != '<' ||
+				p[1] < '0' ||
+				p[1] > '7' ||
+				p[2] != '>'
+			) {
+				p -= 3;
+				p[0] = '<';
+				p[1] = default_message_loglevel + '0';
+				p[2] = '>';
+			} else {
+				msg += 3;
+			}
+			msg_level = p[1] - '0';
+		}
+		line_feed = 0;
+		for (; p < buf_end; p++) {
+			if (log_version == 2) {
+				lbuf[log->v2.end & LOGBUFF_MASK] = *p;
+				log->v2.end++;
+				if (log->v2.end - log->v2.start > LOGBUFF_LEN)
+					log->v2.start++;
+				log->v2.chars++;
+			} else {
+				lbuf[(log->v1.start + log->v1.size) &
+					 LOGBUFF_MASK] = *p;
+				if (log->v1.size < LOGBUFF_LEN)
+					log->v1.size++;
+				else
+					log->v1.start++;
+				log->v1.chars++;
+			}
+			if (*p == '\n') {
+				line_feed = 1;
+				break;
+			}
+		}
+		if (msg_level < console_loglevel) {
+			printf("%s", msg);
+		}
+		if (line_feed)
+			msg_level = -1;
+	}
+	return i;
+}