diff options
Diffstat (limited to 'arch/arm/mach-rockchip/rk3399/rk3399.c')
| -rw-r--r-- | arch/arm/mach-rockchip/rk3399/rk3399.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/arch/arm/mach-rockchip/rk3399/rk3399.c b/arch/arm/mach-rockchip/rk3399/rk3399.c index dacbcf8fdf..ead878b3fd 100644 --- a/arch/arm/mach-rockchip/rk3399/rk3399.c +++ b/arch/arm/mach-rockchip/rk3399/rk3399.c @@ -80,11 +80,28 @@ int dram_init_banksize(void) int arch_cpu_init(void) { - /* We do some SoC one time setting here. */ - struct rk3399_grf_regs * const grf = (void *)GRF_BASE; - /* Emmc clock generator: disable the clock multipilier */ +#ifdef CONFIG_SPL_BUILD + struct rk3399_pmusgrf_regs *sgrf; + struct rk3399_grf_regs *grf; + + /* + * Disable DDR and SRAM 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. + */ + sgrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUSGRF); + rk_clrsetreg(&sgrf->ddr_rgn_con[16], 0x1ff, 0); + rk_clrreg(&sgrf->slv_secure_con4, 0x2000); + + /* eMMC clock generator: disable the clock multipilier */ + grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); rk_clrreg(&grf->emmccore_con[11], 0x0ff); +#endif return 0; } |