diff options
| -rw-r--r-- | board/theobroma-systems/puma_rk3399/puma-rk3399.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/board/theobroma-systems/puma_rk3399/puma-rk3399.c b/board/theobroma-systems/puma_rk3399/puma-rk3399.c index c9768dd75c..8d407940e5 100644 --- a/board/theobroma-systems/puma_rk3399/puma-rk3399.c +++ b/board/theobroma-systems/puma_rk3399/puma-rk3399.c @@ -9,10 +9,15 @@ #include <misc.h> #include <dm/pinctrl.h> #include <dm/uclass-internal.h> +#include <asm/io.h> #include <asm/setup.h> +#include <asm/arch/clock.h> +#include <asm/arch/hardware.h> +#include <asm/arch/grf_rk3399.h> #include <asm/arch/periph.h> #include <power/regulator.h> #include <spl.h> +#include <syscon.h> #include <u-boot/sha256.h> DECLARE_GLOBAL_DATA_PTR; @@ -145,10 +150,25 @@ static void setup_serial(void) #endif } +static void setup_iodomain(void) +{ + const u32 GRF_IO_VSEL_GPIO4CD_SHIFT = 3; + struct rk3399_grf_regs *grf = + syscon_get_first_range(ROCKCHIP_SYSCON_GRF); + + /* + * Set bit 3 in GRF_IO_VSEL so PCIE_RST# works (pin GPIO4_C6). + * Linux assumes that PCIE_RST# works out of the box as it probes + * PCIe before loading the iodomain driver. + */ + rk_setreg(&grf->io_vsel, 1 << GRF_IO_VSEL_GPIO4CD_SHIFT); +} + int misc_init_r(void) { setup_serial(); setup_macaddr(); + setup_iodomain(); return 0; } |