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. Reserving low memory for CMA is needed for LS1021A.
This patch appends the related CMA configuration to bootargs.
Signed-off-by: Shengzhou Liu <shengzhou....@nxp.com>
Signed-off-by: Alison Wang <alison.w...@nxp.com>
---
Change in v2:
- Update the comment.
include/configs/ls1021atwr.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/configs/ls1021atwr.h b/include/configs/ls1021atwr.h
index a6289850ca..45ce460dca 100644
--- a/include/configs/ls1021atwr.h
+++ b/include/configs/ls1021atwr.h
@@ -297,7 +297,8 @@
#ifdef CONFIG_LPUART
#define CONFIG_EXTRA_ENV_SETTINGS \
- "bootargs=root=/dev/ram0 rw console=ttyLP0,115200 $othbootargs\0" \
+ "bootargs=root=/dev/ram0 rw console=ttyLP0,115200 " \
+ "cma=64M@0x0-0xb0000000\0" \
"initrd_high=0xffffffff\0" \
"fdt_addr=0x64f00000\0" \
"kernel_addr=0x65000000\0" \
@@ -353,7 +354,8 @@
"$kernel_size && bootm $load_addr#$board\0"
#else
#define CONFIG_EXTRA_ENV_SETTINGS \
- "bootargs=root=/dev/ram0 rw console=ttyS0,115200 $othbootargs\0" \
+ "bootargs=root=/dev/ram0 rw console=ttyS0,115200 " \
+ "cma=64M@0x0-0xb0000000\0" \
"initrd_high=0xffffffff\0" \
"fdt_addr=0x64f00000\0" \
"kernel_addr=0x61000000\0" \
--
2.17.1
