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| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2018-04-24 18:46:35 +0100 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2018-04-26 08:52:51 +0200 |
| commit | 7175ef4a71e01fe416845a7ecb9af2dfa201cc87 (patch) | |
| tree | b1fa950f19e531538627543b571928db044a93ad | |
| parent | c727bba74a44dd49d71fa3fab9f57ed1e0c277d3 (diff) | |
| download | u-boot-7175ef4a71e01fe416845a7ecb9af2dfa201cc87.tar.gz u-boot-7175ef4a71e01fe416845a7ecb9af2dfa201cc87.tar.bz2 u-boot-7175ef4a71e01fe416845a7ecb9af2dfa201cc87.zip | |
warp7: Allocate specific region of memory to OPTEE
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>
| -rw-r--r-- | board/warp7/warp7.c | 5 |
1 files changed, 5 insertions, 0 deletions
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; } |