diff options
| -rw-r--r-- | arch/arm/mach-rockchip/rk3399-board-spl.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3399-board-spl.c b/arch/arm/mach-rockchip/rk3399-board-spl.c index 4f84ec10a5..f5465294c4 100644 --- a/arch/arm/mach-rockchip/rk3399-board-spl.c +++ b/arch/arm/mach-rockchip/rk3399-board-spl.c @@ -157,6 +157,7 @@ void secure_timer_init(void) } #define GRF_EMMCCORE_CON11 0xff77f02c +#define SGRF_DDR_RGN_CON16 0xff330040 void board_init_f(ulong dummy) { struct udevice *pinctrl; @@ -201,6 +202,17 @@ void board_init_f(ulong dummy) hang(); } + /* + * Disable DDR security regions. + * + * As we are entered from the BootROM, the region from + * 0x0 through 0xfffff (i.e. the first MB of memory) will + * be protected. This will cause issues with the DW_MMC + * driver, which tries to DMA from/to the stack (likely) + * located in this range. + */ + rk_clrsetreg(SGRF_DDR_RGN_CON16, 0x1FF, 0); + secure_timer_init(); ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); @@ -238,6 +250,7 @@ void spl_board_init(void) #ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM back_to_bootrom(); #endif + return; err: printf("spl_board_init: Error %d\n", ret); |