configs: ls1021a: Reserve low memory for CMA

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@nxp.com>
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@nxp.com>
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

diff --git a/include/configs/ls1021atwr.h b/include/configs/ls1021atwr.h
index bec55a78af35a6909508e01c51fd686223a2a953..8e2784b14bf6ee4fd0027bd5418320cb58493a64 100644 (file)
--- a/include/configs/ls1021atwr.h
+++ b/include/configs/ls1021atwr.h
@@ -313,6 +313,8 @@
        "kernel_size=0x2800000\0"       \
        "kernel_addr_sd=0x8000\0"       \
        "kernel_size_sd=0x14000\0"      \
+       "$othbootargs\0"                \
+       "othbootargs=cma=64M@0x0-0xb0000000\0"  \
        BOOTENV                         \
        "boot_scripts=ls1021atwr_boot.scr\0"    \
        "boot_script_hdr=hdr_ls1021atwr_bs.out\0"       \
@@ -373,6 +375,8 @@
        "kernel_size_sd=0x14000\0"      \
        "kernelhdr_addr_sd=0x4000\0"            \
        "kernelhdr_size_sd=0x10\0"              \
+       "$othbootargs\0"                        \
+       "othbootargs=cma=64M@0x0-0xb0000000\0"  \
        BOOTENV                         \
        "boot_scripts=ls1021atwr_boot.scr\0"    \
        "boot_script_hdr=hdr_ls1021atwr_bs.out\0"       \