diff options
Diffstat (limited to 'src/soc/intel/jasperlake/include/soc/usb.h')
| -rw-r--r-- | src/soc/intel/jasperlake/include/soc/usb.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/soc/intel/jasperlake/include/soc/usb.h b/src/soc/intel/jasperlake/include/soc/usb.h new file mode 100644 index 0000000000..33c0bf0bf9 --- /dev/null +++ b/src/soc/intel/jasperlake/include/soc/usb.h @@ -0,0 +1,151 @@ +/* + * This file is part of the coreboot project. + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + + +#ifndef _SOC_USB_H_ +#define _SOC_USB_H_ + +#include <stdint.h> + +/* Per Port HS Transmitter Emphasis */ +#define USB2_EMP_OFF 0 +#define USB2_DE_EMP_ON 1 +#define USB2_PRE_EMP_ON 2 +#define USB2_DE_EMP_ON_PRE_EMP_ON 3 + +/* Per Port Half Bit Pre-emphasis */ +#define USB2_FULL_BIT_PRE_EMP 0 +#define USB2_HALF_BIT_PRE_EMP 1 + +/* Per Port HS Preemphasis Bias */ +#define USB2_BIAS_0MV 0 +#define USB2_BIAS_11P25MV 1 +#define USB2_BIAS_16P9MV 2 +#define USB2_BIAS_28P15MV 3 +#define USB2_BIAS_39P35MV 5 +#define USB2_BIAS_45MV 6 +#define USB2_BIAS_56P3MV 7 + +struct usb2_port_config { + uint8_t enable; + uint8_t ocpin; + uint8_t tx_bias; + uint8_t tx_emp_enable; + uint8_t pre_emp_bias; + uint8_t pre_emp_bit; +}; + +/* USB Overcurrent pins definition */ +enum { + OC0 = 0, + OC1, + OC2, + OC3, + OC4, + OC5, + OC6, + OC7, + OCMAX, + OC_SKIP = 0xff, /* Skip OC programming */ +}; + +/* Standard USB Port based on length: + * - External + * - Back Panel + * - OTG + * - M.2 + * - Internal device down */ + +#define USB2_PORT_EMPTY { \ + .enable = 0, \ + .ocpin = OC_SKIP, \ + .tx_bias = USB2_BIAS_0MV, \ + .tx_emp_enable = USB2_EMP_OFF, \ + .pre_emp_bias = USB2_BIAS_0MV, \ + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, \ +} + +/* Length = 11.5"-12" */ +#define USB2_PORT_LONG(pin) { \ + .enable = 1, \ + .ocpin = (pin), \ + .tx_bias = USB2_BIAS_39P35MV, \ + .tx_emp_enable = USB2_PRE_EMP_ON, \ + .pre_emp_bias = USB2_BIAS_56P3MV, \ + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, \ +} + +/* Length = 6"-11.49" */ +#define USB2_PORT_MID(pin) { \ + .enable = 1, \ + .ocpin = (pin), \ + .tx_bias = USB2_BIAS_0MV, \ + .tx_emp_enable = USB2_PRE_EMP_ON, \ + .pre_emp_bias = USB2_BIAS_56P3MV, \ + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, \ +} + +/* Length = 3"-5.99" */ +#define USB2_PORT_SHORT(pin) { \ + .enable = 1, \ + .ocpin = (pin), \ + .tx_bias = USB2_BIAS_39P35MV, \ + .tx_emp_enable = USB2_PRE_EMP_ON | USB2_DE_EMP_ON, \ + .pre_emp_bias = USB2_BIAS_39P35MV, \ + .pre_emp_bit = USB2_FULL_BIT_PRE_EMP, \ +} + +/* Max TX and Pre-emp settings */ +#define USB2_PORT_MAX(pin) { \ + .enable = 1, \ + .ocpin = (pin), \ + .tx_bias = USB2_BIAS_56P3MV, \ + .tx_emp_enable = USB2_PRE_EMP_ON, \ + .pre_emp_bias = USB2_BIAS_56P3MV, \ + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, \ +} + +/* Type-C Port, no BC1.2 charge detect module / MUX + * Length = 3.0" - 9.00" */ +#define USB2_PORT_TYPE_C(pin) { \ + .enable = 1, \ + .ocpin = (pin), \ + .tx_bias = USB2_BIAS_0MV, \ + .tx_emp_enable = USB2_PRE_EMP_ON, \ + .pre_emp_bias = USB2_BIAS_56P3MV, \ + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, \ +} + +struct usb3_port_config { + uint8_t enable; + uint8_t ocpin; + uint8_t tx_de_emp; + uint8_t tx_downscale_amp; +}; + +#define USB3_PORT_EMPTY { \ + .enable = 0, \ + .ocpin = OC_SKIP, \ + .tx_de_emp = 0x00, \ + .tx_downscale_amp = 0x00, \ +} + +#define USB3_PORT_DEFAULT(pin) { \ + .enable = 1, \ + .ocpin = (pin), \ + .tx_de_emp = 0x0, \ + .tx_downscale_amp = 0x00, \ +} + +#endif |