ec/it*: Add ESPI definitions
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Jeremy Soller
Jeremy Soller
parent
87e16205d6
commit
b0c196d4b9
61
src/ec/it5570e/espi.c
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61
src/ec/it5570e/espi.c
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@ -0,0 +1,61 @@
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#include <common/debug.h>
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#include <ec/espi.h>
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// Not all wires are defined or implemented
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// Index 2 - AP to EC
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struct VirtualWire __code VW_SLP_S3_N = VIRTUAL_WIRE(2, 0);
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struct VirtualWire __code VW_SLP_S4_N = VIRTUAL_WIRE(2, 1);
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struct VirtualWire __code VW_SLP_S5_N = VIRTUAL_WIRE(2, 2);
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// Index 3 - AP to EC
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struct VirtualWire __code VW_SUS_STAT_N = VIRTUAL_WIRE(3, 0);
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struct VirtualWire __code VW_PLTRST_N = VIRTUAL_WIRE(3, 1);
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struct VirtualWire __code VW_OOB_RST_WARN = VIRTUAL_WIRE(3, 2);
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// Index 4 - EC to AP
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struct VirtualWire __code VW_OOB_RST_ACK = VIRTUAL_WIRE(4, 0);
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struct VirtualWire __code VW_WAKE_N = VIRTUAL_WIRE(4, 2);
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struct VirtualWire __code VW_PME_N = VIRTUAL_WIRE(4, 3);
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// Index 5 - EC to AP
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struct VirtualWire __code VW_BOOT_LOAD_DONE = VIRTUAL_WIRE(5, 0);
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struct VirtualWire __code VW_ERROR_FATAL = VIRTUAL_WIRE(5, 1);
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struct VirtualWire __code VW_ERROR_NONFATAL = VIRTUAL_WIRE(5, 2);
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struct VirtualWire __code VW_BOOT_LOAD_STATUS = VIRTUAL_WIRE(5, 3);
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// Index 6 - EC to AP
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struct VirtualWire __code VW_SCI_N = VIRTUAL_WIRE(6, 0);
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struct VirtualWire __code VW_SMI_N = VIRTUAL_WIRE(6, 1);
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struct VirtualWire __code VW_RCIN_N = VIRTUAL_WIRE(6, 2);
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struct VirtualWire __code VW_HOST_RST_ACK = VIRTUAL_WIRE(6, 3);
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// Index 7 - AP to EC
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struct VirtualWire __code VW_HOST_RST_WARN = VIRTUAL_WIRE(7, 0);
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// Index 40 - EC to AP (platform specific)
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struct VirtualWire __code VW_SUS_ACK_N = VIRTUAL_WIRE(40, 0);
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// Index 41 - AP to EC (platform specific)
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struct VirtualWire __code VW_SUS_WARN_N = VIRTUAL_WIRE(41, 0);
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struct VirtualWire __code VW_SUS_PWRDN_ACK = VIRTUAL_WIRE(41, 1);
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enum VirtualWireState vw_get(struct VirtualWire * vw) __critical {
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uint8_t index = *vw->index;
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switch ((index >> vw->shift) & VWS_HIGH) {
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case VWS_LOW:
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return VWS_LOW;
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case VWS_HIGH:
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return VWS_HIGH;
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default:
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return VWS_INVALID;
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}
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}
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void vw_set(struct VirtualWire * vw, enum VirtualWireState state) __critical {
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uint8_t index = *vw->index;
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index &= ~(VWS_HIGH << vw->shift);
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switch (state) {
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case VWS_LOW:
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index |= VWS_LOW << vw->shift;
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break;
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case VWS_HIGH:
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index |= VWS_HIGH << vw->shift;
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break;
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default:
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break;
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}
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*vw->index = index;
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}
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123
src/ec/it5570e/include/ec/espi.h
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123
src/ec/it5570e/include/ec/espi.h
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// SPDX-License-Identifier: GPL-3.0-only
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#ifndef _EC_ESPI_H
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#define _EC_ESPI_H
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#include <stdint.h>
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#ifndef EC_ESPI
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#define EC_ESPI 0
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#endif // EC_ESPI
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struct VirtualWire {
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volatile uint8_t __xdata * index;
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uint8_t shift;
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};
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#define VIRTUAL_WIRE(INDEX, SHIFT) { \
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.index = &VWIDX ## INDEX, \
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.shift = SHIFT, \
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}
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enum VirtualWireState {
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VWS_INVALID = 0x00,
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VWS_LOW = 0x10,
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VWS_HIGH = 0x11,
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};
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enum VirtualWireState vw_get(struct VirtualWire * vw) __critical;
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void vw_set(struct VirtualWire * vw, enum VirtualWireState state) __critical;
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// Not all wires are defined or implemented
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// Index 2 - AP to EC
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extern struct VirtualWire __code VW_SLP_S3_N;
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extern struct VirtualWire __code VW_SLP_S4_N;
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extern struct VirtualWire __code VW_SLP_S5_N;
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// Index 3 - AP to EC
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extern struct VirtualWire __code VW_SUS_STAT_N;
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extern struct VirtualWire __code VW_PLTRST_N;
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extern struct VirtualWire __code VW_OOB_RST_WARN;
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// Index 4 - EC to AP
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extern struct VirtualWire __code VW_OOB_RST_ACK;
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extern struct VirtualWire __code VW_WAKE_N;
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extern struct VirtualWire __code VW_PME_N;
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// Index 5 - EC to AP
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extern struct VirtualWire __code VW_BOOT_LOAD_DONE;
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extern struct VirtualWire __code VW_ERROR_FATAL;
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extern struct VirtualWire __code VW_ERROR_NONFATAL;
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extern struct VirtualWire __code VW_BOOT_LOAD_STATUS;
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// Index 6 - EC to AP
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extern struct VirtualWire __code VW_SCI_N;
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extern struct VirtualWire __code VW_SMI_N;
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extern struct VirtualWire __code VW_RCIN_N;
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extern struct VirtualWire __code VW_HOST_RST_ACK;
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// Index 7 - AP to EC
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extern struct VirtualWire __code VW_HOST_RST_WARN;
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// Index 40 - EC to AP (platform specific)
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extern struct VirtualWire __code VW_SUS_ACK_N;
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// Index 41 - AP to EC (platform specific)
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extern struct VirtualWire __code VW_SUS_WARN_N;
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extern struct VirtualWire __code VW_SUS_PWRDN_ACK;
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// General capabilities and configurations
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volatile uint8_t __xdata __at(0x3107) ESGCAC0;
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volatile uint8_t __xdata __at(0x3106) ESGCAC1;
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volatile uint8_t __xdata __at(0x3105) ESGCAC2;
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volatile uint8_t __xdata __at(0x3104) ESGCAC3;
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// Channel 0 capabilities and configurations
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volatile uint8_t __xdata __at(0x310B) ESC0CAC0;
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volatile uint8_t __xdata __at(0x310A) ESC0CAC1;
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volatile uint8_t __xdata __at(0x3109) ESC0CAC2;
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volatile uint8_t __xdata __at(0x3108) ESC0CAC3;
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// Channel 1 capabilities and configurations
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volatile uint8_t __xdata __at(0x310F) ESC1CAC0;
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volatile uint8_t __xdata __at(0x310E) ESC1CAC1;
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volatile uint8_t __xdata __at(0x310D) ESC1CAC2;
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volatile uint8_t __xdata __at(0x310C) ESC1CAC3;
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// Channel 2 capabilities and configurations
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volatile uint8_t __xdata __at(0x3113) ESC2CAC0;
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volatile uint8_t __xdata __at(0x3112) ESC2CAC1;
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volatile uint8_t __xdata __at(0x3111) ESC2CAC2;
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volatile uint8_t __xdata __at(0x3110) ESC2CAC3;
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// Channel 3 capabilities and configurations
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volatile uint8_t __xdata __at(0x3117) ESC3CAC0;
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volatile uint8_t __xdata __at(0x3116) ESC3CAC1;
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volatile uint8_t __xdata __at(0x3115) ESC3CAC2;
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volatile uint8_t __xdata __at(0x3114) ESC3CAC3;
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// eSPI PC control
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volatile uint8_t __xdata __at(0x3190) ESPCTRL0;
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// eSPI general control
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volatile uint8_t __xdata __at(0x31A0) ESGCTRL0;
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volatile uint8_t __xdata __at(0x31A1) ESGCTRL1;
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volatile uint8_t __xdata __at(0x31A2) ESGCTRL2;
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volatile uint8_t __xdata __at(0x31A3) ESGCTRL3;
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// Virtual wires
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volatile uint8_t __xdata __at(0x3200) VWIDX0;
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volatile uint8_t __xdata __at(0x3202) VWIDX2;
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volatile uint8_t __xdata __at(0x3203) VWIDX3;
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volatile uint8_t __xdata __at(0x3204) VWIDX4;
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volatile uint8_t __xdata __at(0x3205) VWIDX5;
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volatile uint8_t __xdata __at(0x3206) VWIDX6;
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volatile uint8_t __xdata __at(0x3207) VWIDX7;
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// Virtual wires at 0x40
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volatile uint8_t __xdata __at(0x3240) VWIDX40;
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volatile uint8_t __xdata __at(0x3241) VWIDX41;
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volatile uint8_t __xdata __at(0x3242) VWIDX42;
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// Virtual wire control
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volatile uint8_t __xdata __at(0x3290) VWCTRL0;
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volatile uint8_t __xdata __at(0x3291) VWCTRL1;
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volatile uint8_t __xdata __at(0x3292) VWCTRL2;
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volatile uint8_t __xdata __at(0x3293) VWCTRL3;
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volatile uint8_t __xdata __at(0x3295) VWCTRL5;
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volatile uint8_t __xdata __at(0x3296) VWCTRL6;
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#endif // _EC_ESPI_H
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@ -1,5 +1,18 @@
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// SPDX-License-Identifier: GPL-3.0-only
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#include <ec/espi.h>
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#if EC_ESPI
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// eSPI signature (byte 7 = 0xA4)
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static __code char __at(0x40) SIGNATURE[32] = {
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0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0xA4, 0x95,
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0x85, 0x12, 0x5A, 0x5A, 0xAA, 0x00, 0x55, 0x55,
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0x49, 0x54, 0x45, 0x20, 0x54, 0x65, 0x63, 0x68,
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0x2E, 0x20, 0x49, 0x6E, 0x63, 0x2E, 0x20, 0x20
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};
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#else // EC_ESPI
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// LPC signature (byte 7 = 0xA5)
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static __code char __at(0x40) SIGNATURE[32] = {
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0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0x94,
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0x85, 0x12, 0x5A, 0x5A, 0xAA, 0x00, 0x55, 0x55,
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@ -7,3 +20,4 @@ static __code char __at(0x40) SIGNATURE[32] = {
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0x49, 0x54, 0x45, 0x20, 0x54, 0x65, 0x63, 0x68,
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0x2E, 0x20, 0x49, 0x6E, 0x63, 0x2E, 0x20, 0x20
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};
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#endif // EC_ESPI
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9
src/ec/it8587e/include/ec/espi.h
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9
src/ec/it8587e/include/ec/espi.h
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// SPDX-License-Identifier: GPL-3.0-only
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#ifndef _EC_ESPI_H
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#define _EC_ESPI_H
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// eSPI not supported on IT8587E
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#define EC_ESPI 0
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#endif // _EC_ESPI_H
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