| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <device/mmio.h> |
| #include <device/pci_ops.h> |
| #include <device/pci_def.h> |
| #include <southbridge/intel/common/rcba.h> |
| #include <southbridge/intel/common/pmbase.h> |
| |
| #include "pch.h" |
| |
| void early_usb_init(const struct southbridge_usb_port *portmap) |
| { |
| u32 reg32; |
| const u32 rcba_dump[8] = { |
| /* 3560 */ 0x024c8001, 0x000024a3, 0x00040002, 0x01000050, |
| /* 3570 */ 0x02000772, 0x16000f9f, 0x1800ff4f, 0x0001d630, |
| }; |
| const u32 currents[] = { USBIR_TXRX_GAIN_MOBILE_LOW, USBIR_TXRX_GAIN_DEFAULT, |
| USBIR_TXRX_GAIN_HIGH, 0x20000f51, 0x2000094a, 0x2000035f, |
| USBIR_TXRX_GAIN_DESKTOP_LOW, 0x20000357, 0x20000353 }; |
| int i; |
| |
| /* Unlock registers. */ |
| write_pmbase16(UPRWC, read_pmbase16(UPRWC) | UPRWC_WR_EN); |
| |
| for (i = 0; i < 14; i++) { |
| if (portmap[i].enabled && !pch_is_mobile() && |
| currents[portmap[i].current] == USBIR_TXRX_GAIN_MOBILE_LOW) { |
| /* |
| * Note for developers: You can fix this by re-running autoport on |
| * vendor firmware and then updating portmap currents accordingly. |
| * If that is not possible, another option is to choose a non-zero |
| * current setting. In either case, please test all the USB ports. |
| */ |
| printk(BIOS_ERR, "%s: USB%02d: USBIR_TXRX_GAIN_MOBILE_LOW is an invalid setting for desktop!\n", |
| __func__, i); |
| |
| RCBA32(USBIR0 + 4 * i) = USBIR_TXRX_GAIN_DEFAULT; |
| } else { |
| RCBA32(USBIR0 + 4 * i) = currents[portmap[i].current]; |
| } |
| } |
| for (i = 0; i < 10; i++) |
| RCBA32(0x3538 + 4 * i) = 0; |
| |
| for (i = 0; i < 8; i++) |
| RCBA32(0x3560 + 4 * i) = rcba_dump[i]; |
| for (i = 0; i < 8; i++) |
| RCBA32(0x3580 + 4 * i) = 0; |
| reg32 = 0; |
| for (i = 0; i < 14; i++) |
| if (!portmap[i].enabled) |
| reg32 |= (1 << i); |
| RCBA32(USBPDO) = reg32; |
| reg32 = 0; |
| for (i = 0; i < 8; i++) |
| if (portmap[i].enabled && portmap[i].oc_pin >= 0) |
| reg32 |= (1 << (i + 8 * portmap[i].oc_pin)); |
| RCBA32(USBOCM1) = reg32; |
| reg32 = 0; |
| for (i = 8; i < 14; i++) |
| if (portmap[i].enabled && portmap[i].oc_pin >= 4) |
| reg32 |= (1 << (i - 8 + 8 * (portmap[i].oc_pin - 4))); |
| RCBA32(USBOCM2) = reg32; |
| for (i = 0; i < 22; i++) |
| RCBA32(0x35a8 + 4 * i) = 0; |
| |
| pci_write_config32(PCH_XHCI_DEV, 0xe4, 0x00000000); |
| |
| /* Relock registers. */ |
| write_pmbase16(UPRWC, 0); |
| } |