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Diffstat (limited to 'lib_ppc/bootm.c')
-rw-r--r--lib_ppc/bootm.c91
1 files changed, 72 insertions, 19 deletions
diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c
index 9194fd8..81803dd 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[]);
@@ -71,6 +75,7 @@ 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;
@@ -85,22 +90,23 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
#endif
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);
}
/*
@@ -189,6 +195,45 @@ 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);
@@ -628,7 +673,7 @@ static int boot_get_fdt (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
*/
fdt_blob = (char *)fdt_addr;
debug ("* fdt: raw FDT blob\n");
- printf ("## Flattened Device Tree blob at %08lx\n", fdt_blob);
+ printf ("## Flattened Device Tree blob at %08lx\n", (long)fdt_blob);
}
break;
default:
@@ -636,7 +681,7 @@ 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_copy, IH_TYPE_MULTI)) {
@@ -655,7 +700,7 @@ 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");
@@ -711,22 +756,25 @@ 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");
@@ -734,7 +782,7 @@ 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 ... ",
@@ -748,9 +796,14 @@ 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;