feat(imx): add helper to take params from BL2
So far the i.MX BL31 doesn't take any parameters. This means the BL32
image base address and whether or not a BL32 image is used at all has to
be hardcoded in BL31.
This adds a helper function that allows to take params from BL2 safely.
On i.MX BL2 is usually U-Boot SPL which passes random values in arg0,
so make sure arg0 is within the internal SRAM range before accessing it
as a pointer. Also make sure arg0 is sufficiently aligned and the header
type and version is correct.
Change-Id: Idab8013a1d6dabf50a83c75f3e6f831de4a537e9
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/plat/imx/imx93/platform.mk b/plat/imx/imx93/platform.mk
index ed7e81f..f2dfb32 100644
--- a/plat/imx/imx93/platform.mk
+++ b/plat/imx/imx93/platform.mk
@@ -22,6 +22,7 @@
BL31_SOURCES += plat/common/aarch64/crash_console_helpers.S \
plat/imx/imx93/aarch64/plat_helpers.S \
plat/imx/imx93/plat_topology.c \
+ plat/imx/common/imx_common.c \
plat/imx/common/lpuart_console.S \
plat/imx/imx93/trdc.c \
plat/imx/imx93/pwr_ctrl.c \