diff options
Diffstat (limited to 'board/theobroma-systems/puma_rk3399/puma-rk3399.c')
| -rw-r--r-- | board/theobroma-systems/puma_rk3399/puma-rk3399.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/board/theobroma-systems/puma_rk3399/puma-rk3399.c b/board/theobroma-systems/puma_rk3399/puma-rk3399.c index 27e3823d52..c6690fa069 100644 --- a/board/theobroma-systems/puma_rk3399/puma-rk3399.c +++ b/board/theobroma-systems/puma_rk3399/puma-rk3399.c @@ -8,13 +8,17 @@ #include <dm.h> #include <misc.h> #include <spl.h> +#include <syscon.h> #include <usb.h> #include <dm/pinctrl.h> #include <dm/uclass-internal.h> +#include <asm/io.h> #include <asm/gpio.h> #include <asm/setup.h> #include <asm/arch/clock.h> #include <asm/arch/cru_rk3399.h> +#include <asm/arch/hardware.h> +#include <asm/arch/grf_rk3399.h> #include <asm/arch/periph.h> #include <power/regulator.h> #include <u-boot/sha256.h> @@ -180,10 +184,25 @@ 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; } |