From patchwork Thu Apr 23 14:37:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alison Wang X-Patchwork-Id: 238394 List-Id: U-Boot discussion From: alison.wang at nxp.com (Alison Wang) Date: Thu, 23 Apr 2020 22:37:34 +0800 Subject: [PATCH v2] configs: ls1021a: Append CMA configuration to bootargs Message-ID: <20200423143734.39305-1-alison.wang@nxp.com> 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 Signed-off-by: Alison Wang Reviewed-by: Priyanka Jain --- 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 $othbootargs\0" \ + "bootargs=root=/dev/ram0 rw console=ttyLP0,115200 " \ + "cma=64M at 0x0-0xb0000000\0" \ "initrd_high=0xffffffff\0" \ "fdt_addr=0x64f00000\0" \ "kernel_addr=0x65000000\0" \ @@ -353,7 +354,8 @@ "$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 at 0x0-0xb0000000\0" \ "initrd_high=0xffffffff\0" \ "fdt_addr=0x64f00000\0" \ "kernel_addr=0x61000000\0" \