[PATCH] microblaze: Increase max dtb size to 64K from 32K

From: Michal Simek
Date: Tue Oct 08 2019 - 06:24:44 EST


From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
---

arch/microblaze/kernel/head.S | 2 +-
arch/microblaze/kernel/vmlinux.lds.S | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index f264fdcf152a..7d2894418691 100644
--- 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 e1f3e8741292..71072c5cf61f 100644
--- 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 = . ;
}

--
2.17.1