[U-Boot] [PATCH 1/2] rockchip: rk3328: set DDR as non-secure in SPL

[Kever Yang]

On 2019/7/29 下午5:18, Matwey V. Kornilov wrote:
> From: Kever Yang <kever.yang at rock-chips.com>
>
> Set DDR as non-secure so that MMC DMA can access.
>
> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
> [cherry picked from https://github.com/rockchip-linux/u-boot/commit/bfe741ab9eb4f97371a4e6c24185419d57a3a75f and https://github.com/rockchip-linux/u-boot/commit/73d952acc8cc1ddad6652ba71895d9fe928c1e4b with minor modifications]
> Signed-off-by: Matwey V. Kornilov <matwey.kornilov at gmail.com>

Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
>   arch/arm/mach-rockchip/rk3328/rk3328.c | 5 +++++
>   1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm/mach-rockchip/rk3328/rk3328.c b/arch/arm/mach-rockchip/rk3328/rk3328.c
> index 592f287613..c2448d7273 100644
> --- a/arch/arm/mach-rockchip/rk3328/rk3328.c
> +++ b/arch/arm/mach-rockchip/rk3328/rk3328.c
> @@ -16,6 +16,7 @@ DECLARE_GLOBAL_DATA_PTR;
>   #define CRU_BASE		0xFF440000
>   #define GRF_BASE		0xFF100000
>   #define UART2_BASE		0xFF130000
> +#define FW_DDR_CON_REG		0xFF7C0040
>   
>   const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
>   	[BROM_BOOTSOURCE_EMMC] = "rksdmmc at ff520000",
> @@ -46,8 +47,12 @@ struct mm_region *mem_map = rk3328_mem_map;
>   
>   int arch_cpu_init(void)
>   {
> +#ifdef CONFIG_SPL_BUILD
>   	/* We do some SoC one time setting here. */
>   
> +	/* Disable the ddr secure region setting to make it non-secure */
> +	rk_setreg(FW_DDR_CON_REG, 0x200);
> +#endif
>   	return 0;
>   }
>