[PATCH] configs: ls1021a: Reserve low memory for CMA

[Alison Wang]

The default reserved memory for CMA is high memory. If LPAE is enabled,
highmem pages are non-remapped and can not be used with
dma_alloc_coherent. This patch will reserve low memory for CMA and fix
the issue on LS1021A.

Signed-off-by: Peng Ma <peng.ma at nxp.com>
Signed-off-by: Shengzhou Liu <Shengzhou.Liu at nxp.com>
Signed-off-by: Alison Wang <alison.wang at nxp.com>
---
 include/configs/ls1021atwr.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/configs/ls1021atwr.h b/include/configs/ls1021atwr.h
index 46c372a..6aa7154 100644
--- a/include/configs/ls1021atwr.h
+++ b/include/configs/ls1021atwr.h
@@ -310,6 +310,8 @@
 	"kernel_size=0x2800000\0"	\
 	"kernel_addr_sd=0x8000\0"	\
 	"kernel_size_sd=0x14000\0"	\
+	"$othbootargs\0"		\
+	"othbootargs=cma=64M at 0x0-0xb0000000\0"	\
 	BOOTENV				\
 	"boot_scripts=ls1021atwr_boot.scr\0"	\
 	"boot_script_hdr=hdr_ls1021atwr_bs.out\0"	\
@@ -370,6 +372,8 @@
 	"kernel_size_sd=0x14000\0"	\
 	"kernelhdr_addr_sd=0x4000\0"		\
 	"kernelhdr_size_sd=0x10\0"		\
+	"$othbootargs\0"			\
+	"othbootargs=cma=64M at 0x0-0xb0000000\0"	\
 	BOOTENV				\
 	"boot_scripts=ls1021atwr_boot.scr\0"	\
 	"boot_script_hdr=hdr_ls1021atwr_bs.out\0"	\
-- 
2.9.5