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rockchip: rk322x: set the DDR region as non-secure in SPL

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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>
This commit is contained in:
Kever Yang 2017-07-27 12:53:59 +08:00 committed by Philipp Tomsich
parent bf82e200a9
commit 18d38d3a94
1 changed files with 4 additions and 0 deletions
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4
arch/arm/mach-rockchip/rk322x-board-spl.c
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@ -41,6 +41,8 @@ static struct rk322x_grf * const grf = (void *)GRF_BASE;
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 @@ void board_init_f(ulong dummy)
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