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Conditionally compile eSPI support

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A board may use either the LPC bus or the eSPI bus. Only include eSPI
support for boards that use it.

Signed-off-by: Tim Crawford <tcrawford@system76.com>
This commit is contained in:
Tim Crawford
2022-11-30 08:51:54 -07:00
committed by Jeremy Soller
parent 5e884cf413
commit d687df482a
21 changed files with 42 additions and 51 deletions
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2
src/ec/ite/ec.mk
View File

@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-3.0-only
ec-y += ec.c
ec-y += espi.c
ec-$(CONFIG_BUS_ESPI) += espi.c
ec-y += gpio.c
ec-y += i2c.c
ec-y += kbc.c

9
src/ec/ite/include/ec/espi.h
View File

@@ -3,15 +3,8 @@
#ifndef _EC_ESPI_H
#define _EC_ESPI_H
// eSPI not supported on IT8587E, may not be used on IT5570E
#ifndef EC_ESPI
#define EC_ESPI 0
#endif
#include <stdint.h>
#if CONFIG_EC_ITE_IT5570E
struct VirtualWire {
volatile uint8_t __xdata * index;
uint8_t shift;
@@ -126,6 +119,4 @@ volatile uint8_t __xdata __at(0x3293) VWCTRL3;
volatile uint8_t __xdata __at(0x3295) VWCTRL5;
volatile uint8_t __xdata __at(0x3296) VWCTRL6;
#endif // CONFIG_EC_ITE_IT5570E
#endif // _EC_ESPI_H

6
src/ec/ite/signature.c
View File

@@ -3,17 +3,17 @@
#include <ec/espi.h>
// clang-format off
#if EC_ESPI
#if CONFIG_BUS_ESPI
// eSPI signature (byte 7 = 0xA4)
static __code const uint8_t __at(0x40) SIGNATURE[16] = {
0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0xA4, 0x95,
0x85, 0x12, 0x5A, 0x5A, 0xAA, 0x00, 0x55, 0x55,
};
#else // EC_ESPI
#else // CONFIG_BUS_ESPI
// LPC signature (byte 7 = 0xA5)
static __code const uint8_t __at(0x40) SIGNATURE[16] = {
0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0xA5, 0x94,
0x85, 0x12, 0x5A, 0x5A, 0xAA, 0x00, 0x55, 0x55,
};
#endif // EC_ESPI
#endif // CONFIG_BUS_ESPI
// clang-format on