1 files changed, 129 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/tools/envcrc.c b/qemu/roms/u-boot/tools/envcrc.c
new file mode 100644
index 000000000..a9d9b48c7
--- /dev/null
+++ b/qemu/roms/u-boot/tools/envcrc.c
@@ -0,0 +1,129 @@
+/*
+ * (C) Copyright 2001
+ * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#ifndef __ASSEMBLY__
+#define	__ASSEMBLY__			/* Dirty trick to get only #defines	*/
+#endif
+#define	__ASM_STUB_PROCESSOR_H__	/* don't include asm/processor.		*/
+#include <config.h>
+#undef	__ASSEMBLY__
+
+#if defined(CONFIG_ENV_IS_IN_FLASH)
+# ifndef  CONFIG_ENV_ADDR
+#  define CONFIG_ENV_ADDR	(CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
+# endif
+# ifndef  CONFIG_ENV_OFFSET
+#  define CONFIG_ENV_OFFSET (CONFIG_ENV_ADDR - CONFIG_SYS_FLASH_BASE)
+# endif
+# if !defined(CONFIG_ENV_ADDR_REDUND) && defined(CONFIG_ENV_OFFSET_REDUND)
+#  define CONFIG_ENV_ADDR_REDUND	(CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET_REDUND)
+# endif
+# ifndef  CONFIG_ENV_SIZE
+#  define CONFIG_ENV_SIZE	CONFIG_ENV_SECT_SIZE
+# endif
+# if defined(CONFIG_ENV_ADDR_REDUND) && !defined(CONFIG_ENV_SIZE_REDUND)
+#  define CONFIG_ENV_SIZE_REDUND	CONFIG_ENV_SIZE
+# endif
+# if (CONFIG_ENV_ADDR >= CONFIG_SYS_MONITOR_BASE) && \
+     ((CONFIG_ENV_ADDR + CONFIG_ENV_SIZE) <= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN))
+#  define ENV_IS_EMBEDDED
+# endif
+# if defined(CONFIG_ENV_ADDR_REDUND) || defined(CONFIG_ENV_OFFSET_REDUND)
+#  define CONFIG_SYS_REDUNDAND_ENVIRONMENT
+# endif
+#endif	/* CONFIG_ENV_IS_IN_FLASH */
+
+#if defined(ENV_IS_EMBEDDED) && !defined(CONFIG_BUILD_ENVCRC)
+# define CONFIG_BUILD_ENVCRC
+#endif
+
+#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
+# define ENV_HEADER_SIZE	(sizeof(uint32_t) + 1)
+#else
+# define ENV_HEADER_SIZE	(sizeof(uint32_t))
+#endif
+
+#define ENV_SIZE (CONFIG_ENV_SIZE - ENV_HEADER_SIZE)
+
+
+#ifdef CONFIG_BUILD_ENVCRC
+# include <environment.h>
+extern unsigned int env_size;
+extern env_t environment;
+#endif	/* CONFIG_BUILD_ENVCRC */
+
+extern uint32_t crc32 (uint32_t, const unsigned char *, unsigned int);
+
+int main (int argc, char **argv)
+{
+#ifdef CONFIG_BUILD_ENVCRC
+	unsigned char pad = 0x00;
+	uint32_t crc;
+	unsigned char *envptr = (unsigned char *)&environment,
+		*dataptr = envptr + ENV_HEADER_SIZE;
+	unsigned int datasize = ENV_SIZE;
+	unsigned int eoe;
+
+	if (argv[1] && !strncmp(argv[1], "--binary", 8)) {
+		int ipad = 0xff;
+		if (argv[1][8] == '=')
+			sscanf(argv[1] + 9, "%i", &ipad);
+		pad = ipad;
+	}
+
+	if (pad) {
+		/* find the end of env */
+		for (eoe = 0; eoe < datasize - 1; ++eoe)
+			if (!dataptr[eoe] && !dataptr[eoe+1]) {
+				eoe += 2;
+				break;
+			}
+		if (eoe < datasize - 1)
+			memset(dataptr + eoe, pad, datasize - eoe);
+	}
+
+	crc = crc32 (0, dataptr, datasize);
+
+	/* Check if verbose mode is activated passing a parameter to the program */
+	if (argc > 1) {
+		if (!strncmp(argv[1], "--binary", 8)) {
+			int le = (argc > 2 ? !strcmp(argv[2], "le") : 1);
+			size_t i, start, end, step;
+			if (le) {
+				start = 0;
+				end = ENV_HEADER_SIZE;
+				step = 1;
+			} else {
+				start = ENV_HEADER_SIZE - 1;
+				end = -1;
+				step = -1;
+			}
+			for (i = start; i != end; i += step)
+				printf("%c", (crc & (0xFF << (i * 8))) >> (i * 8));
+			if (fwrite(dataptr, 1, datasize, stdout) != datasize)
+				fprintf(stderr, "fwrite() failed: %s\n", strerror(errno));
+		} else {
+			printf("CRC32 from offset %08X to %08X of environment = %08X\n",
+				(unsigned int) (dataptr - envptr),
+				(unsigned int) (dataptr - envptr) + datasize,
+				crc);
+		}
+	} else {
+		printf ("0x%08X\n", crc);
+	}
+#else
+	printf ("0\n");
+#endif
+	return EXIT_SUCCESS;
+}