diff options
| author | Ricardo Salveti | 2021-08-25 18:47:18 +0300 |
|---|---|---|
| committer | Stefano Babic | 2021-10-21 13:59:26 +0200 |
| commit | cdf31924521b347980a2b4e9871acb4a995f5d24 (patch) | |
| tree | d51d714c316b9fa68da3d0d0f04bb89239002d11 | |
| parent | 35813490d63ac6c421f0ec1f70b53d18e5fbcd0d (diff) | |
board: ea: mx7ulp_com: allocate specific region of memory to OP-TEE
On the iMX7ULP uCOM board, OP-TEE uses the memory region defined by the
maximum DRAM address minus CONFIG_OPTEE_TZDRAM_SIZE, so subtract
CONFIG_OPTEE_TZDRAM_SIZE from the available DRAM size to avoid
conflicts.
Note the OPTEE boot process itself subtracts the DRAM region it
lives in from the memory map passed to Linux.
Signed-off-by: Ricardo Salveti <ricardo@foundries.io>
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
| -rw-r--r-- | board/ea/mx7ulp_com/mx7ulp_com.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/board/ea/mx7ulp_com/mx7ulp_com.c b/board/ea/mx7ulp_com/mx7ulp_com.c index 5b2d444366c..7fce75ade9d 100644 --- a/board/ea/mx7ulp_com/mx7ulp_com.c +++ b/board/ea/mx7ulp_com/mx7ulp_com.c @@ -20,6 +20,10 @@ int dram_init(void) { gd->ram_size = imx_ddr_size(); +#ifdef CONFIG_OPTEE_TZDRAM_SIZE + gd->ram_size -= CONFIG_OPTEE_TZDRAM_SIZE; +#endif + return 0; } |