rockchip: rk322x: set the DDR region as non-secure in SPL
Disable the ddr secure region setting in SPL and the ddr memory
becomes non-secure, every one can access it. the trust firmware
like OPTEE should have the correct setting for it after SPL if
there is one.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/arch/arm/mach-rockchip/rk322x-board-spl.c b/arch/arm/mach-rockchip/rk322x-board-spl.c
index 15216c7..4ddb8ba 100644
--- a/arch/arm/mach-rockchip/rk322x-board-spl.c
+++ b/arch/arm/mach-rockchip/rk322x-board-spl.c
@@ -41,6 +41,8 @@
CON_IOMUX_UART2SEL_MASK,
CON_IOMUX_UART2SEL_21 << CON_IOMUX_UART2SEL_SHIFT);
}
+
+#define SGRF_DDR_CON0 0x10150000
void board_init_f(ulong dummy)
{
struct udevice *dev;
@@ -71,6 +73,8 @@
return;
}
+ /* Disable the ddr secure region setting to make it non-secure */
+ rk_clrreg(SGRF_DDR_CON0, 0x4000);
#if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
back_to_bootrom();
#endif