diff mbox series

[v4,06/18] warp7: Allocate specific region of memory to OPTEE

Message ID 20180424174647.11840-7-bryan.odonoghue@linaro.org
State Accepted
Commit 7175ef4a71e01fe416845a7ecb9af2dfa201cc87
Headers show
Series warp7: Enable automated OPTEE/HAB boot flow | expand

Commit Message

Bryan O'Donoghue April 24, 2018, 5:46 p.m. UTC 
Subtracts CONFIG_OPTEE_TZDRAM_SIZE from the available DRAM size.

On WaRP7 we simply define the OPTEE region as from the maximum DRAM address
minus CONFIG_OPTEE_TZDRAM_SIZE bytes.

Note the OPTEE boot process will itself subtract the DRAM region it lives
in from the memory map passed to Linux.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
---
 board/warp7/warp7.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/board/warp7/warp7.c b/board/warp7/warp7.c
index 0d3d324571..56f0cdd175 100644
--- a/board/warp7/warp7.c
+++ b/board/warp7/warp7.c
@@ -58,6 +58,11 @@  int dram_init(void)
 {
 	gd->ram_size = PHYS_SDRAM_SIZE;
 
+	/* Subtract the defined OPTEE runtime firmware length */
+#ifdef CONFIG_OPTEE_TZDRAM_SIZE
+		gd->ram_size -= CONFIG_OPTEE_TZDRAM_SIZE;
+#endif
+
 	return 0;
 }