diff options
Diffstat (limited to 'arch/arm/mach-socfpga/system_manager_soc64.c')
| -rw-r--r-- | arch/arm/mach-socfpga/system_manager_soc64.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/system_manager_soc64.c b/arch/arm/mach-socfpga/system_manager_soc64.c index 4b42158be9d..913f93c8f94 100644 --- a/arch/arm/mach-socfpga/system_manager_soc64.c +++ b/arch/arm/mach-socfpga/system_manager_soc64.c @@ -8,9 +8,29 @@ #include <asm/arch/system_manager.h> #include <asm/global_data.h> #include <asm/io.h> +#include <linux/bitfield.h> DECLARE_GLOBAL_DATA_PTR; +#if IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX5) +/* + * Setting RESET_PULSE_OVERRIDE bit for successful reset staggering pulse + * generation and setting PORT_OVERCURRENT bit so that until we turn on the + * Vbus, it doesn't give false information about Vbus to the HPS controller. + */ +static void sysmgr_config_usb3(void) +{ + u32 reg_val = 0; + + reg_val = readl(socfpga_get_sysmgr_addr() + SYSMGR_SOC64_USB3_MISC_CTRL_REG0); + reg_val |= FIELD_PREP(SYSMGR_SOC64_USB3_MISC_CTRL_REG0_RESET_PUL_OVR, + SET_USB3_MISC_CTRL_REG0_PORT_RESET_PUL_OVR); + reg_val |= FIELD_PREP(SYSMGR_SOC64_USB3_MISC_CTRL_REG0_PORT_OVR_CURR, + SET_USB3_MISC_CTRL_REG0_PORT_OVR_CURR_BIT_1); + writel(reg_val, socfpga_get_sysmgr_addr() + SYSMGR_SOC64_USB3_MISC_CTRL_REG0); +} +#endif + /* * Configure all the pin muxes */ @@ -18,6 +38,10 @@ void sysmgr_pinmux_init(void) { populate_sysmgr_pinmux(); populate_sysmgr_fpgaintf_module(); + +#if IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX5) + sysmgr_config_usb3(); +#endif } /* |