X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=lib_ppc%2Fbootm.c;h=b08ee0dc4d0cdb0fc4744eb6de2316b233ea73a4;hb=c160a9544743e80e8889edb2275538e7764ce334;hp=29016075d78222df623510f2c09992e2e8a825bd;hpb=6fe2946f198481254a6ee9600d7456b8316a4083;p=kernel%2Fu-boot.git

diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c
index 2901607..b08ee0d 100644
--- a/lib_ppc/bootm.c
+++ b/lib_ppc/bootm.c
@@ -51,6 +51,10 @@ static int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
 #include <asm/cache.h>
 #endif
 
+#ifndef CFG_FDT_PAD
+#define CFG_FDT_PAD 0x3000
+#endif
+
 DECLARE_GLOBAL_DATA_PTR;
 
 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
@@ -71,11 +75,12 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 	ulong	initrd_start, initrd_end;
 	ulong	rd_data_start, rd_data_end, rd_len;
 	ulong	size;
+	phys_size_t bootm_size;
 
 	ulong	cmd_start, cmd_end, bootmap_base;
 	bd_t	*kbd;
-	ulong	ep = 0;
-	void	(*kernel)(bd_t *, ulong, ulong, ulong, ulong);
+	void	(*kernel)(bd_t *, ulong r4, ulong r5, ulong r6,
+			  ulong r7, ulong r8, ulong r9);
 	int	ret;
 	ulong	of_size = 0;
 	struct lmb *lmb = images->lmb;
@@ -84,23 +89,27 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 	char	*of_flat_tree = NULL;
 #endif
 
+	kernel = (void (*)(bd_t *, ulong, ulong, ulong,
+			   ulong, ulong, ulong))images->ep;
+
 	bootmap_base = getenv_bootm_low();
-	size = getenv_bootm_size();
+	bootm_size = getenv_bootm_size();
 
 #ifdef DEBUG
-	if (((u64)bootmap_base + size) > (CFG_SDRAM_BASE + (u64)gd->ram_size))
+	if (((u64)bootmap_base + bootm_size) >
+	    (CFG_SDRAM_BASE + (u64)gd->ram_size))
 		puts("WARNING: bootm_low + bootm_size exceed total memory\n");
-	if ((bootmap_base + size) > get_effective_memsize())
+	if ((bootmap_base + bootm_size) > get_effective_memsize())
 		puts("WARNING: bootm_low + bootm_size exceed eff. memory\n");
 #endif
 
-	size = min(size, get_effective_memsize());
+	size = min(bootm_size, get_effective_memsize());
 	size = min(size, CFG_LINUX_LOWMEM_MAX_SIZE);
 
-	if (size < getenv_bootm_size()) {
+	if (size < bootm_size) {
 		ulong base = bootmap_base + size;
-		printf("WARNING: adjusting available memory to %x\n", size);
-		lmb_reserve(lmb, base, getenv_bootm_size() - size);
+		printf("WARNING: adjusting available memory to %lx\n", size);
+		lmb_reserve(lmb, base, bootm_size - size);
 	}
 
 	/*
@@ -144,24 +153,6 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 		set_clocks_in_mhz(kbd);
 	}
 
-	/* find kernel entry point */
-	if (images->legacy_hdr_valid) {
-		ep = image_get_ep (images->legacy_hdr_os);
-#if defined(CONFIG_FIT)
-	} else if (images->fit_uname_os) {
-		ret = fit_image_get_entry (images->fit_hdr_os,
-				images->fit_noffset_os, &ep);
-		if (ret) {
-			puts ("Can't get entry point property!\n");
-			goto error;
-		}
-#endif
-	} else {
-		puts ("Could not find kernel entry point!\n");
-		goto error;
-	}
-	kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))ep;
-
 	/* find ramdisk */
 	ret = boot_get_ramdisk (argc, argv, images, IH_ARCH_PPC,
 			&rd_data_start, &rd_data_end);
@@ -189,6 +180,45 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 		ft_board_setup(of_flat_tree, gd->bd);
 #endif
 	}
+
+	/* Fixup the fdt memreserve now that we know how big it is */
+	if (of_flat_tree) {
+		int j;
+		uint64_t addr, size;
+		int total = fdt_num_mem_rsv(of_flat_tree);
+		uint actualsize;
+
+		for (j = 0; j < total; j++) {
+			fdt_get_mem_rsv(of_flat_tree, j, &addr, &size);
+			if (addr == (uint64_t)(u32)of_flat_tree) {
+				fdt_del_mem_rsv(of_flat_tree, j);
+				break;
+			}
+		}
+
+		/* Delete the old LMB reservation */
+		lmb_free(lmb, (phys_addr_t)(u32)of_flat_tree,
+				(phys_size_t)fdt_totalsize(of_flat_tree));
+
+		/* Calculate the actual size of the fdt */
+		actualsize = fdt_off_dt_strings(of_flat_tree) +
+			fdt_size_dt_strings(of_flat_tree);
+
+		/* Make it so the fdt ends on a page boundary */
+		actualsize = ALIGN(actualsize, 0x1000);
+		actualsize = actualsize - ((uint)of_flat_tree & 0xfff);
+
+		/* Change the fdt header to reflect the correct size */
+		fdt_set_totalsize(of_flat_tree, actualsize);
+		of_size = actualsize;
+
+		/* Add the new reservation */
+		ret = fdt_add_mem_rsv(of_flat_tree, (uint)of_flat_tree,
+				of_size);
+
+		/* Create a new LMB reservation */
+		lmb_reserve(lmb, (ulong)of_flat_tree, of_size);
+	}
 #endif	/* CONFIG_OF_LIBFDT */
 
 	ret = boot_ramdisk_high (lmb, rd_data_start, rd_len, &initrd_start, &initrd_end);
@@ -232,21 +262,28 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 #if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
 	unlock_ram_in_cache();
 #endif
-	if (!images->autostart)
-		return ;
 
 #if defined(CONFIG_OF_LIBFDT)
 	if (of_flat_tree) {	/* device tree; boot new style */
 		/*
 		 * Linux Kernel Parameters (passing device tree):
-		 *   r3: pointer to the fdt, followed by the board info data
-		 *   r4: physical pointer to the kernel itself
-		 *   r5: NULL
-		 *   r6: NULL
-		 *   r7: NULL
+		 *   r3: pointer to the fdt
+		 *   r4: 0
+		 *   r5: 0
+		 *   r6: epapr magic
+		 *   r7: size of IMA in bytes
+		 *   r8: 0
+		 *   r9: 0
 		 */
+#if defined(CONFIG_85xx) || defined(CONFIG_440)
+ #define EPAPR_MAGIC	(0x45504150)
+#else
+ #define EPAPR_MAGIC	(0x65504150)
+#endif
+
 		debug ("   Booting using OF flat tree...\n");
-		(*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
+		(*kernel) ((bd_t *)of_flat_tree, 0, 0, EPAPR_MAGIC,
+			   CFG_BOOTMAPSZ, 0, 0);
 		/* does not return */
 	} else
 #endif
@@ -258,16 +295,18 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 		 *   r5: initrd_end - unused if r4 is 0
 		 *   r6: Start of command line string
 		 *   r7: End   of command line string
+		 *   r8: 0
+		 *   r9: 0
 		 */
 		debug ("   Booting using board info...\n");
-		(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
+		(*kernel) (kbd, initrd_start, initrd_end,
+			   cmd_start, cmd_end, 0, 0);
 		/* does not return */
 	}
 	return ;
 
 error:
-	if (images->autostart)
-		do_reset (cmdtp, flag, argc, argv);
+	do_reset (cmdtp, flag, argc, argv);
 	return ;
 }
 
@@ -626,9 +665,9 @@ static int boot_get_fdt (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 				/*
 				 * FDT blob
 				 */
-				debug ("*  fdt: raw FDT blob\n");
-				printf ("## Flattened Device Tree blob at %08lx\n", fdt_blob);
 				fdt_blob = (char *)fdt_addr;
+				debug ("*  fdt: raw FDT blob\n");
+				printf ("## Flattened Device Tree blob at %08lx\n", (long)fdt_blob);
 			}
 			break;
 		default:
@@ -636,10 +675,10 @@ static int boot_get_fdt (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 			goto error;
 		}
 
-		printf ("   Booting using the fdt blob at 0x%x\n", fdt_blob);
+		printf ("   Booting using the fdt blob at 0x%x\n", (int)fdt_blob);
 
 	} else if (images->legacy_hdr_valid &&
-			image_check_type (images->legacy_hdr_os, IH_TYPE_MULTI)) {
+			image_check_type (&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
 
 		ulong fdt_data, fdt_len;
 
@@ -655,7 +694,7 @@ static int boot_get_fdt (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 		if (fdt_len) {
 
 			fdt_blob = (char *)fdt_data;
-			printf ("   Booting using the fdt at 0x%x\n", fdt_blob);
+			printf ("   Booting using the fdt at 0x%x\n", (int)fdt_blob);
 
 			if (fdt_check_header (fdt_blob) != 0) {
 				fdt_error ("image is not a fdt");
@@ -667,9 +706,8 @@ static int boot_get_fdt (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 				goto error;
 			}
 		} else {
-			fdt_error ("Did not find a Flattened Device Tree "
-				"in a legacy multi-component image");
-			goto error;
+			debug ("## No Flattened Device Tree\n");
+			return 0;
 		}
 	} else {
 		debug ("## No Flattened Device Tree\n");
@@ -712,22 +750,25 @@ static int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
 #endif
 
 	/*
-	 * The blob must be within CFG_BOOTMAPSZ,
-	 * so we flag it to be copied if it is not.
+	 * The blob needs to be inside the boot mapping.
 	 */
-	if (fdt_blob >= (char *)CFG_BOOTMAPSZ)
+	if (fdt_blob < (char *)bootmap_base)
 		relocate = 1;
 
-	of_len = be32_to_cpu (fdt_totalsize (fdt_blob));
+	if ((fdt_blob + *of_size + CFG_FDT_PAD) >=
+			((char *)CFG_BOOTMAPSZ + bootmap_base))
+		relocate = 1;
 
 	/* move flattend device tree if needed */
 	if (relocate) {
 		int err;
-		ulong of_start;
+		ulong of_start = 0;
 
 		/* position on a 4K boundary before the alloc_current */
-		of_start = lmb_alloc_base(lmb, of_len, 0x1000,
-					 (CFG_BOOTMAPSZ + bootmap_base));
+		/* Pad the FDT by a specified amount */
+		of_len = *of_size + CFG_FDT_PAD;
+		of_start = (unsigned long)lmb_alloc_base(lmb, of_len, 0x1000,
+				(CFG_BOOTMAPSZ + bootmap_base));
 
 		if (of_start == 0) {
 			puts("device tree - allocation error\n");
@@ -735,7 +776,7 @@ static int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
 		}
 
 		debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
-			(ulong)fdt_blob, (ulong)fdt_blob + of_len - 1,
+			(ulong)fdt_blob, (ulong)fdt_blob + *of_size - 1,
 			of_len, of_len);
 
 		printf ("   Loading Device Tree to %08lx, end %08lx ... ",
@@ -749,9 +790,14 @@ static int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
 		puts ("OK\n");
 
 		*of_flat_tree = (char *)of_start;
+		*of_size = of_len;
 	} else {
 		*of_flat_tree = fdt_blob;
-		lmb_reserve(lmb, (ulong)fdt, of_len);
+		of_len = (CFG_BOOTMAPSZ + bootmap_base) - (ulong)fdt_blob;
+		lmb_reserve(lmb, (ulong)fdt_blob, of_len);
+		fdt_set_totalsize(*of_flat_tree, of_len);
+
+		*of_size = of_len;
 	}
 
 	return 0;