diff options
Diffstat (limited to 'src/mainboard/pcengines')
| -rw-r--r-- | src/mainboard/pcengines/apu1/mainboard.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/mainboard/pcengines/apu1/mainboard.c b/src/mainboard/pcengines/apu1/mainboard.c index f91e8799d8..f11d94b116 100644 --- a/src/mainboard/pcengines/apu1/mainboard.c +++ b/src/mainboard/pcengines/apu1/mainboard.c @@ -230,6 +230,36 @@ const char *smbios_mainboard_serial_number(void) return serial; } +/* + * Set up "Over Current Control 1" (reg 0x58) on the first OHCI device. + * The remaining ports on the second device are for mcpie2/sdcard and + * can stay at the power-on default value. + * + * The schematic shows this transposed mapping for the first device: + * chipset port 0 -> port 1 (j12 external 2, usboc0#) + * chipset port 1 -> port 4 (j17 mpcie1) + * chipset port 2 -> port 2 (j14 header row1, usboc1#) + * chipset port 3 -> port 3 (j14 header row2, usboc1#) + * chipset port 4 -> port 0 (j12 external 1. usboc0#) + * + * Register mapping: + * bit0-3: Mapping for HS Port 0 + * bit4-7: Mapping for HS Port 1 + * bit8-11: Mapping for HS Port 2 + * bit12-15: Mapping for HS Port 3 + * bit16-19: Mapping for HS Port 4 + * bit20-31: Reserved (0) + * + * power-on default: 0xfffff + * A value >7 will disable the overcurrent detection. + */ +static void usb_oc_setup(void) +{ + device_t dev = dev_find_slot(0, PCI_DEVFN(0x12, 0)); + + pci_write_config32(dev, 0x58, 0x011f0); +} + static void mainboard_final(void *chip_info) { u32 mmio_base; @@ -245,6 +275,7 @@ static void mainboard_final(void *chip_info) configure_gpio(mmio_base, GPIO_189, GPIO_FTN_1, GPIO_OUTPUT | GPIO_DATA_LOW); configure_gpio(mmio_base, GPIO_190, GPIO_FTN_1, GPIO_OUTPUT | GPIO_DATA_HIGH); configure_gpio(mmio_base, GPIO_191, GPIO_FTN_1, GPIO_OUTPUT | GPIO_DATA_HIGH); + usb_oc_setup(); } struct chip_operations mainboard_ops = { |