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 --- 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" \ + "$othbootargs\0" \ + "othbootargs=cma=64M@0x0-0xb0000000\0" \ BOOTENV \ "boot_scripts=ls1021atwr_boot.scr\0" \ "boot_script_hdr=hdr_ls1021atwr_bs.out\0" \ @@ -370,6 +372,8 @@ "kernel_size_sd=0x14000\0" \ "kernelhdr_addr_sd=0x4000\0" \ "kernelhdr_size_sd=0x10\0" \ + "$othbootargs\0" \ + "othbootargs=cma=64M@0x0-0xb0000000\0" \ BOOTENV \ "boot_scripts=ls1021atwr_boot.scr\0" \ "boot_script_hdr=hdr_ls1021atwr_bs.out\0" \