[v3,05/17] warp7: Allocate specific region of memory to OPTEE

Message ID 1523633481-20914-6-git-send-email-bryan.odonoghue@linaro.org
State New
Headers show
Series
  • warp7: Enable automated OPTEE/HAB boot flow
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Commit Message

Bryan O'Donoghue April 13, 2018, 3:31 p.m.
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>
---
 board/warp7/warp7.c | 5 +++++
 1 file changed, 5 insertions(+)

Patch

diff --git a/board/warp7/warp7.c b/board/warp7/warp7.c
index 0d3d324..56f0cdd 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;
 }