[new uImage] Rename architecture specific bootm code files

Implementation of the do_bootm_linux() and other bootm helper routines is
architecture specific code. As such it resides in lib_<arch> directories
in files named <arch>_linux.c

This patch renames those files to a more clear and accurate
lib_<arch>/bootm.c form.

List of the renamed files:
   lib_arm/armlinux.c -> lib_arm/bootm.c
   lib_avr32/avr32_linux.c -> lib_avr32/bootm.c
   lib_blackfin/bf533_linux.c -> lib_blackfin/bootm.c
   lib_i386/i386_linux.c -> lib_i386/bootm.c
   lib_m68k/m68k_linux.c -> lib_m68k/bootm.c
   lib_microblaze/microblaze_linux.c -> lib_microblaze/bootm.c
   lib_mips/mips_linux.c -> lib_mips/bootm.c
   lib_nios/nios_linux.c -> lib_nios/bootm.c
   lib_nios2/nios_linux.c -> lib_nios2/bootm.c
   lib_ppc/ppc_linux.c -> lib_ppc/bootm.c
   lib_sh/sh_linux.c -> lib_sh/bootm.c

Signed-off-by: Marian Balakowicz <m8@semihalf.com>

1 files changed, 279 insertions, 0 deletions

diff --git a/lib_m68k/bootm.c b/lib_m68k/bootm.c
new file mode 100644
index 000000000..b135556a9
--- /dev/null
+++ b/lib_m68k/bootm.c
@@ -0,0 +1,279 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307	 USA
+ *
+ */
+
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <zlib.h>
+#include <bzlib.h>
+#include <watchdog.h>
+#include <environment.h>
+#include <asm/byteorder.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define PHYSADDR(x) x
+
+#define LINUX_MAX_ENVS		256
+#define LINUX_MAX_ARGS		256
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+# include <status_led.h>
+# define SHOW_BOOT_PROGRESS(arg)	show_boot_progress(arg)
+#else
+# define SHOW_BOOT_PROGRESS(arg)
+#endif
+
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+
+void do_bootm_linux(cmd_tbl_t * cmdtp, int flag,
+		    int argc, char *argv[],
+		    image_header_t *hdr, int verify)
+{
+	ulong sp;
+
+	ulong rd_data, rd_len;
+	ulong initrd_high;
+	ulong initrd_start, initrd_end;
+	image_header_t *rd_hdr;
+	int initrd_copy_to_ram = 1;
+
+	ulong cmd_start, cmd_end;
+	char *cmdline;
+	char *s;
+	bd_t *kbd;
+	void (*kernel) (bd_t *, ulong, ulong, ulong, ulong);
+
+	if ((s = getenv("initrd_high")) != NULL) {
+		/* a value of "no" or a similar string will act like 0,
+		 * turning the "load high" feature off. This is intentional.
+		 */
+		initrd_high = simple_strtoul(s, NULL, 16);
+		if (initrd_high == ~0)
+			initrd_copy_to_ram = 0;
+	} else {		/* not set, no restrictions to load high */
+		initrd_high = ~0;
+	}
+
+#ifdef CONFIG_LOGBUFFER
+	kbd = gd->bd;
+	/* Prevent initrd from overwriting logbuffer */
+	if (initrd_high < (kbd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD))
+		initrd_high = kbd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD;
+	debug("## Logbuffer at 0x%08lX ", kbd->bi_memsize - LOGBUFF_LEN);
+#endif
+
+	/*
+	 * Booting a (Linux) kernel image
+	 *
+	 * Allocate space for command line and board info - the
+	 * address should be as high as possible within the reach of
+	 * the kernel (see CFG_BOOTMAPSZ settings), but in unused
+	 * memory, which means far enough below the current stack
+	 * pointer.
+	 */
+	asm("movel %%a7, %%d0\n"
+	    "movel %%d0, %0\n": "=d"(sp): :"%d0");
+
+	debug("## Current stack ends at 0x%08lX ", sp);
+
+	sp -= 2048;		/* just to be sure */
+	if (sp > CFG_BOOTMAPSZ)
+		sp = CFG_BOOTMAPSZ;
+	sp &= ~0xF;
+
+	debug("=> set upper limit to 0x%08lX\n", sp);
+
+	cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
+	kbd = (bd_t *) (((ulong) cmdline - sizeof(bd_t)) & ~0xF);
+
+	if ((s = getenv("bootargs")) == NULL)
+		s = "";
+
+	strcpy(cmdline, s);
+
+	cmd_start = (ulong) & cmdline[0];
+	cmd_end = cmd_start + strlen(cmdline);
+
+	*kbd = *(gd->bd);
+
+#ifdef	DEBUG
+	printf("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
+
+	do_bdinfo(NULL, 0, 0, NULL);
+#endif
+
+	if ((s = getenv("clocks_in_mhz")) != NULL) {
+		/* convert all clock information to MHz */
+		kbd->bi_intfreq /= 1000000L;
+		kbd->bi_busfreq /= 1000000L;
+	}
+
+	kernel =
+	    (void (*)(bd_t *, ulong, ulong, ulong, ulong))image_get_ep (hdr);
+
+	/*
+	 * Check if there is an initrd image
+	 */
+
+	if (argc >= 3) {
+		debug("Not skipping initrd\n");
+		SHOW_BOOT_PROGRESS(9);
+
+		rd_hdr = (image_header_t *)simple_strtoul (argv[2], NULL, 16);
+		printf ("## Loading RAMDisk Image at %08lx ...\n", rd_hdr);
+
+		if (!image_check_magic (rd_hdr)) {
+			puts("Bad Magic Number\n");
+			SHOW_BOOT_PROGRESS(-10);
+			do_reset(cmdtp, flag, argc, argv);
+		}
+
+		if (!image_check_hcrc (rd_hdr)) {
+			puts("Bad Header Checksum\n");
+			SHOW_BOOT_PROGRESS(-11);
+			do_reset(cmdtp, flag, argc, argv);
+		}
+
+		SHOW_BOOT_PROGRESS(10);
+
+		print_image_hdr (rd_hdr);
+
+		rd_data = image_get_data (rd_hdr);
+		rd_len = image_get_data_size (rd_hdr);
+
+		if (verify) {
+			puts("   Verifying Checksum ... ");
+			if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) {
+				puts("Bad Data CRC\n");
+				SHOW_BOOT_PROGRESS(-12);
+				do_reset(cmdtp, flag, argc, argv);
+			}
+			puts("OK\n");
+		}
+
+		SHOW_BOOT_PROGRESS(11);
+
+		if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
+		    !image_check_arch (rd_hdr, IH_ARCH_M68K) ||
+		    !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
+			puts("No Linux ColdFire Ramdisk Image\n");
+			SHOW_BOOT_PROGRESS(-13);
+			do_reset(cmdtp, flag, argc, argv);
+		}
+
+		/*
+		 * Now check if we have a multifile image
+		 */
+	} else if (image_check_type (hdr, IH_TYPE_MULTI)) {
+		/*
+		 * Get second entry data start address and len
+		 */
+		SHOW_BOOT_PROGRESS (13);
+		image_multi_getimg (hdr, 1, &rd_data, &rd_len);
+	} else {
+		/*
+		 * no initrd image
+		 */
+		SHOW_BOOT_PROGRESS(14);
+
+		rd_len = rd_data = 0;
+	}
+
+	if (!rd_data) {
+		debug("No initrd\n");
+	}
+
+	if (rd_data) {
+		if (!initrd_copy_to_ram) {	/* zero-copy ramdisk support */
+			initrd_start = rd_data;
+			initrd_end = initrd_start + rd_len;
+		} else {
+			initrd_start = (ulong) kbd - rd_len;
+			initrd_start &= ~(4096 - 1);	/* align on page */
+
+			if (initrd_high) {
+				ulong nsp;
+
+				/*
+				 * the inital ramdisk does not need to be within
+				 * CFG_BOOTMAPSZ as it is not accessed until after
+				 * the mm system is initialised.
+				 *
+				 * do the stack bottom calculation again and see if
+				 * the initrd will fit just below the monitor stack
+				 * bottom without overwriting the area allocated
+				 * above for command line args and board info.
+				 */
+				asm("movel %%a7, %%d0\n"
+				    "movel %%d0, %0\n": "=d"(nsp): :"%d0");
+
+				nsp -= 2048;	/* just to be sure */
+				nsp &= ~0xF;
+
+				if (nsp > initrd_high)	/* limit as specified */
+					nsp = initrd_high;
+
+					nsp -= rd_len;
+				nsp &= ~(4096 - 1);	/* align on page */
+
+				if (nsp >= sp)
+					initrd_start = nsp;
+			}
+
+			SHOW_BOOT_PROGRESS(12);
+
+			debug
+			    ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
+			     rd_data, rd_data + rd_len - 1, rd_len, rd_len);
+
+			initrd_end = initrd_start + rd_len;
+			printf("   Loading Ramdisk to %08lx, end %08lx ... ",
+			       initrd_start, initrd_end);
+
+			memmove_wd((void *)initrd_start,
+				   (void *)rd_data, rd_len, CHUNKSZ);
+
+			puts("OK\n");
+		}
+	} else {
+		initrd_start = 0;
+		initrd_end = 0;
+	}
+
+	debug("## Transferring control to Linux (at address %08lx) ...\n",
+	      (ulong) kernel);
+
+	SHOW_BOOT_PROGRESS(15);
+
+	/*
+	 * Linux Kernel Parameters (passing board info data):
+	 *   r3: ptr to board info data
+	 *   r4: initrd_start or 0 if no initrd
+	 *   r5: initrd_end - unused if r4 is 0
+	 *   r6: Start of command line string
+	 *   r7: End   of command line string
+	 */
+	(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
+	/* does not return */
+}