From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Thu, 17 Dec 2015 08:19:35 +0000 (+0900)
Subject: image: check "bootm_low" and "bootm_size" if "initrd_high" is missing
X-Git-Tag: v2016.03-rc1~339
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=20e072f37402c17741f67d9693eaabdd835b80f2;p=platform%2Fkernel%2Fu-boot.git

image: check "bootm_low" and "bootm_size" if "initrd_high" is missing

To boot Linux, we should prevent Initramdisk and FDT from going too
high.

Currently, boot_relocate_fdt() checks "fdt_high" environment first,
and then falls back to getenv_bootm_mapsize() + getenv_bootm_low()
if "fdt_high" is missing.

On the other hand, boot_ramdisk_high() only checks "initrd_high" to
get the address limit for the Initramdisk.  We also want to let this
case fall back to getenv_bootm_mapsize() + getenv_bootm_low().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

diff --git a/common/image.c b/common/image.c
index c36927fca8..d63d9e0169 100644
--- a/common/image.c
+++ b/common/image.c
@@ -1113,8 +1113,7 @@ int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
 		if (initrd_high == ~0)
 			initrd_copy_to_ram = 0;
 	} else {
-		/* not set, no restrictions to load high */
-		initrd_high = ~0;
+		initrd_high = getenv_bootm_mapsize() + getenv_bootm_low();
 	}