microblaze: Increase max dtb size to 64K from 32K

This patch increases max dtb size to 64K from 32K. This fixes the issue  of
kernel hang with larger dtb of size greater than 32KB.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index f264fdcf152aa85ea86ea66016851172099300f3..7d2894418691cb06285399a849762ef9d4a8c2f8 100644 (file)
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -99,7 +99,7 @@ big_endian:
 _prepare_copy_fdt:
        or      r11, r0, r0 /* incremment */
        ori     r4, r0, TOPHYS(_fdt_start)
-       ori     r3, r0, (0x8000 - 4)
+       ori     r3, r0, (0x10000 - 4)
 _copy_fdt:
        lw      r12, r7, r11 /* r12 = r7 + r11 */
        sw      r12, r4, r11 /* addr[r4 + r11] = r12 */

diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
index e1f3e8741292e4db61e4e6861985a23591ef1686..71072c5cf61f75ec67ac67ffef6ae7d1a958ce02 100644 (file)
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -46,7 +46,7 @@ SECTIONS {
        __fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
                _fdt_start = . ;                /* place for fdt blob */
                *(__fdt_blob) ;                 /* Any link-placed DTB */
-               . = _fdt_start + 0x8000;        /* Pad up to 32kbyte */
+               . = _fdt_start + 0x10000;       /* Pad up to 64kbyte */
                _fdt_end = . ;
        }