diff options
Diffstat (limited to 'chip/npcx/espi.c')
| -rw-r--r-- | chip/npcx/espi.c | 704 |
1 files changed, 0 insertions, 704 deletions
diff --git a/chip/npcx/espi.c b/chip/npcx/espi.c deleted file mode 100644 index c8976afed0..0000000000 --- a/chip/npcx/espi.c +++ /dev/null @@ -1,704 +0,0 @@ -/* Copyright 2016 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -/* ESPI module for Chrome EC */ - -#include "registers.h" -#include "system.h" -#include "task.h" -#include "chipset.h" -#include "console.h" -#include "uart.h" -#include "util.h" -#include "power.h" -#include "espi.h" -#include "lpc_chip.h" -#include "hooks.h" -#include "timer.h" - -/* Console output macros */ -#if !(DEBUG_ESPI) -#define CPUTS(...) -#define CPRINTS(...) -#else -#define CPUTS(outstr) cputs(CC_LPC, outstr) -#define CPRINTS(format, args...) cprints(CC_LPC, format, ## args) -#endif - -/* Default eSPI configuration for VW events */ -struct vwevms_config_t { - uint8_t idx; /* VW index */ - uint8_t idx_en; /* Index enable */ - uint8_t pltrst_en; /* Enable reset by PLTRST assert */ - uint8_t espirst_en; /* Enable reset by eSPI_RST assert */ - uint8_t int_en; /* Interrupt/Wake-up enable */ -}; - -struct vwevsm_config_t { - uint8_t idx; /* VW index */ - uint8_t idx_en; /* Index enable */ - uint8_t pltrst_en; /* Enable reset by PLTRST assert */ - uint8_t cdrst_en; /* Enable cold reset */ - uint8_t valid; /* Valid VW mask */ -}; - -/* Default MIWU configurations for VW events */ -struct host_wui_item { - uint16_t table : 2; /* MIWU table 0-2 */ - uint16_t group : 3; /* MIWU group 0-7 */ - uint16_t num : 3; /* MIWU bit 0-7 */ - uint16_t edge : 4; /* MIWU edge trigger type rising/falling/any */ -}; - -/* Mapping item between VW signal, index and value */ -struct vw_event_t { - uint16_t name; /* Name of signal */ - uint8_t evt_idx; /* VW index of signal */ - uint8_t evt_val; /* VW value of signal */ -}; - -/* Default settings of VWEVMS registers (Please refer Table.43/44) */ -static const struct vwevms_config_t espi_in_list[] = { - /* IDX EN ENPL ENESP IE/WE VW Event Bit 0 - 3 (M->S) */ -#ifdef CONFIG_HOSTCMD_ESPI_RESET_SLP_SX_VW_ON_ESPI_RST - {0x02, 1, 0, 1, 1}, /* SLP_S3#, SLP_S4#, SLP_S5#, Reserve */ -#else - {0x02, 1, 0, 0, 1}, /* SLP_S3#, SLP_S4#, SLP_S5#, Reserve */ -#endif - {0x03, 1, 0, 1, 1}, /* SUS_STAT#, PLTRST#, ORST_WARN, Reserve */ - {0x07, 1, 1, 1, 1}, /* HRST_WARN, SMIOUT#, NMIOUT#, Reserve */ - {0x41, 1, 0, 1, 1}, /* SUS_WARN#, SPWRDN_ACK, Reserve, SLP_A# */ - {0x42, 1, 0, 0, 1}, /* SLP_LAN#, SLP_WAN#, Reserve, Reserve */ - {0x47, 1, 1, 1, 1}, /* HOST_C10, Reserve, Reserve, Reserve */ -}; - -/* Default settings of VWEVSM registers (Please refer Table.43/44) */ -static const struct vwevsm_config_t espi_out_list[] = { - /* IDX EN ENPL ENCDR VDMASK VW Event Bit 0 - 3 (S->M) */ - {0x04, 1, 0, 0, 0x0D}, /* ORST_ACK, Reserve, WAKE#, PME# */ - {0x05, 1, 0, 0, 0x0F}, /* SLV_BL_DNE, ERR_F, ERR_NF, SLV_BL_STS */ -#ifdef CONFIG_SCI_GPIO - {0x06, 1, 1, 0, 0x0C}, /* SCI#, SMI#, RCIN#, HRST_ACK */ -#else - {0x06, 1, 1, 0, 0x0F}, /* SCI#, SMI#, RCIN#, HRST_ACK */ -#endif - {0x40, 1, 0, 0, 0x01}, /* SUS_ACK, Reserve, Reserve, Reserve */ -}; - -/* eSPI interrupts used in MIWU */ -static const struct host_wui_item espi_vw_int_list[] = { - /* ESPI_RESET */ - {MIWU_TABLE_0, MIWU_GROUP_5, 5, MIWU_EDGE_FALLING}, - /* SLP_S3 */ - {MIWU_TABLE_2, MIWU_GROUP_1, 0, MIWU_EDGE_ANYING}, - /* SLP_S4 */ - {MIWU_TABLE_2, MIWU_GROUP_1, 1, MIWU_EDGE_ANYING}, - /* SLP_S5 */ - {MIWU_TABLE_2, MIWU_GROUP_1, 2, MIWU_EDGE_ANYING}, - /* VW_WIRE_PLTRST */ - {MIWU_TABLE_2, MIWU_GROUP_1, 5, MIWU_EDGE_ANYING}, - /* VW_WIRE_OOB_RST_WARN */ - {MIWU_TABLE_2, MIWU_GROUP_1, 6, MIWU_EDGE_ANYING}, - /* VW_WIRE_HOST_RST_WARN */ - {MIWU_TABLE_2, MIWU_GROUP_2, 0, MIWU_EDGE_ANYING}, - /* VW_WIRE_SUS_WARN */ - {MIWU_TABLE_2, MIWU_GROUP_2, 4, MIWU_EDGE_ANYING}, -}; - -/* VW signals used in eSPI */ -static const struct vw_event_t vw_events_list[] = { - {VW_SLP_S3_L, 0x02, 0x01}, /* index 02h (In) */ - {VW_SLP_S4_L, 0x02, 0x02}, - {VW_SLP_S5_L, 0x02, 0x04}, - {VW_SUS_STAT_L, 0x03, 0x01}, /* index 03h (In) */ - {VW_PLTRST_L, 0x03, 0x02}, - {VW_OOB_RST_WARN, 0x03, 0x04}, - {VW_OOB_RST_ACK, 0x04, 0x01}, /* index 04h (Out) */ - {VW_WAKE_L, 0x04, 0x04}, - {VW_PME_L, 0x04, 0x08}, - {VW_ERROR_FATAL, 0x05, 0x02}, /* index 05h (Out) */ - {VW_ERROR_NON_FATAL, 0x05, 0x04}, - {VW_PERIPHERAL_BTLD_STATUS_DONE, 0x05, 0x09}, - {VW_SCI_L, 0x06, 0x01}, /* index 06h (Out) */ - {VW_SMI_L, 0x06, 0x02}, - {VW_RCIN_L, 0x06, 0x04}, - {VW_HOST_RST_ACK, 0x06, 0x08}, - {VW_HOST_RST_WARN, 0x07, 0x01}, /* index 07h (In) */ - {VW_SUS_ACK, 0x40, 0x01}, /* index 40h (Out) */ - {VW_SUS_WARN_L, 0x41, 0x01}, /* index 41h (In) */ - {VW_SUS_PWRDN_ACK_L, 0x41, 0x02}, - {VW_SLP_A_L, 0x41, 0x08}, - {VW_SLP_LAN, 0x42, 0x01}, /* index 42h (In) */ - {VW_SLP_WLAN, 0x42, 0x02}, -}; - -/* Flag for boot load signals */ -static uint8_t boot_load_done; - -/*****************************************************************************/ -/* eSPI internal utilities */ - -/* Recovery utility for eSPI reset */ -static void espi_reset_recovery(void) -{ - /* TODO: Put recovery stuff related to eSPI reset here */ - - /* Clear boot load flag */ - boot_load_done = 0; -} - -/* Configure Controller-to-Peripheral virtual wire inputs */ -static void espi_vw_config_in(const struct vwevms_config_t *config) -{ - uint32_t val; - uint8_t i, index; - - switch (VM_TYPE(config->idx)) { - case ESPI_VW_TYPE_SYS_EV: - case ESPI_VW_TYPE_PLT: - for (i = 0; i < ESPI_VWEVMS_NUM; i++) { - index = VWEVMS_IDX_GET(NPCX_VWEVMS(i)); - /* Set VW input register */ - if (index == config->idx) { - /* Get Wire field */ - val = NPCX_VWEVMS(i) & 0x0F; - val |= VWEVMS_FIELD(config->idx, - config->idx_en, - config->pltrst_en, - config->int_en, - config->espirst_en); - NPCX_VWEVMS(i) = val; - return; - } - } - CPRINTS("No match index of all VWEVMSs"); - break; - default: - CPRINTS("No support type of VWEVMS"); - break; - } -} - -/* Configure Peripheral-to-Controller virtual wire outputs */ -static void espi_vw_config_out(const struct vwevsm_config_t *config) -{ - uint32_t val; - uint8_t i, index; - - switch (VM_TYPE(config->idx)) { - case ESPI_VW_TYPE_SYS_EV: - case ESPI_VW_TYPE_PLT: - for (i = 0; i < ESPI_VWEVSM_NUM; i++) { - index = VWEVSM_IDX_GET(NPCX_VWEVSM(i)); - /* Set VW output register */ - if (index == config->idx) { - /* Preserve WIRE(3-0) and HW_WIRE (27-24). */ - val = NPCX_VWEVSM(i) & 0x0F00000F; - val |= VWEVSM_FIELD(config->idx, - config->idx_en, - config->valid, - config->pltrst_en, - config->cdrst_en); - NPCX_VWEVSM(i) = val; - return; - } - } - CPRINTS("No match index of all VWEVSMs"); - break; - default: - CPRINTS("No support type of VWEVSM"); - break; - } -} - -/* Config Controller-to-Peripheral VWire interrupt edge type and enable it */ -static void espi_enable_vw_int(const struct host_wui_item *vwire_int) -{ - uint8_t table = vwire_int->table; - uint8_t group = vwire_int->group; - uint8_t num = vwire_int->num; - uint8_t edge = vwire_int->edge; - - /* Set detection mode to edge */ - CLEAR_BIT(NPCX_WKMOD(table, group), num); - - if (edge != MIWU_EDGE_ANYING) { - /* Disable Any Edge */ - CLEAR_BIT(NPCX_WKAEDG(table, group), num); - /* Enable Rising Edge */ - if (edge == MIWU_EDGE_RISING) - CLEAR_BIT(NPCX_WKEDG(table, group), num); - /* Enable Falling Edge */ - else - SET_BIT(NPCX_WKEDG(table, group), num); - } else - /* enable Any Edge */ - SET_BIT(NPCX_WKAEDG(table, group), num); - - /* Clear the pending bit */ - NPCX_WKPCL(table, group) = BIT(num); - - /* Enable wake-up input sources */ - SET_BIT(NPCX_WKEN(table, group), num); -} - -/* Get vw index & value information by signal */ -static int espi_vw_get_signal_index(enum espi_vw_signal event) -{ - int index; - - /* Find the vw index by signal name first */ - for (index = 0; index < ARRAY_SIZE(vw_events_list); index++) { - if (vw_events_list[index].name == event) - break; - } - /* Cannot find the index */ - if (index == ARRAY_SIZE(vw_events_list)) - return -1; - - return index; -} - -/* The ISRs of VW signals which used for power sequences */ -void espi_vw_power_signal_interrupt(enum espi_vw_signal signal) -{ - if (IS_ENABLED(CONFIG_HOST_ESPI_VW_POWER_SIGNAL)) - /* TODO: Add VW handler in power/common.c */ - power_signal_interrupt((enum gpio_signal) signal); -} - -/*****************************************************************************/ -/* IC specific low-level driver */ - -/** - * Set eSPI Virtual-Wire signal to Host - * - * @param signal vw signal needs to set - * @param level level of vw signal - * @return EC_SUCCESS, or non-zero if error. - */ -int espi_vw_set_wire(enum espi_vw_signal signal, uint8_t level) -{ - uint8_t offset, value; - int sig_idx; - - /* Get index of vw signal list by signale name */ - sig_idx = espi_vw_get_signal_index(signal); - - /* Cannot find index by signal name */ - if (sig_idx < 0) - return EC_ERROR_PARAM1; - - /* Find the output register offset by vw index */ - for (offset = 0; offset < ESPI_VWEVSM_NUM; offset++) { - uint8_t vw_idx = VWEVSM_IDX_GET(NPCX_VWEVSM(offset)); - /* If index matches. break */ - if (vw_idx == vw_events_list[sig_idx].evt_idx) - break; - } - - /* Cannot match index */ - if (offset == ESPI_VWEVSM_NUM) - return EC_ERROR_PARAM1; - - value = GET_FIELD(NPCX_VWEVSM(offset), NPCX_VWEVSM_WIRE); - /* Set wire */ - if (level) - value |= vw_events_list[sig_idx].evt_val; - else /* Clear wire */ - value &= (~vw_events_list[sig_idx].evt_val); - - SET_FIELD(NPCX_VWEVSM(offset), NPCX_VWEVSM_WIRE, value); - - return EC_SUCCESS; -} - -/** - * Get eSPI Virtual-Wire signal from host - * - * @param signal vw signal needs to get - * @return 1: set by host, otherwise: no signal - */ -int espi_vw_get_wire(enum espi_vw_signal signal) -{ - uint8_t offset, value; - int sig_idx; - - /* Get index of vw signal list by signale name */ - sig_idx = espi_vw_get_signal_index(signal); - - /* Cannot find index by signal name */ - if (sig_idx < 0) - return -1; - - /* Find the input register offset by vw index */ - for (offset = 0; offset < ESPI_VWEVMS_NUM; offset++) { - uint8_t vw_idx = VWEVMS_IDX_GET(NPCX_VWEVMS(offset)); - /* If index matches. break */ - if (vw_idx == vw_events_list[sig_idx].evt_idx) - break; - } - - /* Cannot match index */ - if (offset == ESPI_VWEVMS_NUM) - return -1; - - /* Get wire & check with valid bits */ - value = GET_FIELD(NPCX_VWEVMS(offset), NPCX_VWEVMS_WIRE); - value &= GET_FIELD(NPCX_VWEVMS(offset), NPCX_VWEVMS_VALID); - - return !!(value & vw_events_list[sig_idx].evt_val); -} - -/** - * Enable VW interrupt of power sequence signal - * - * @param signal vw signal needs to enable interrupt - * @return EC_SUCCESS, or non-zero if error. - */ -int espi_vw_enable_wire_int(enum espi_vw_signal signal) -{ - if (signal == VW_SLP_S3_L) - SET_BIT(NPCX_WKEN(MIWU_TABLE_2, MIWU_GROUP_1), 0); - else if (signal == VW_SLP_S4_L) - SET_BIT(NPCX_WKEN(MIWU_TABLE_2, MIWU_GROUP_1), 1); - else if (signal == VW_SLP_S5_L) - SET_BIT(NPCX_WKEN(MIWU_TABLE_2, MIWU_GROUP_1), 2); - else - return EC_ERROR_PARAM1; - - return EC_SUCCESS; -} - -/** - * Disable VW interrupt of power sequence signal - * - * @param signal vw signal needs to disable interrupt - * @return EC_SUCCESS, or non-zero if error. - */ -int espi_vw_disable_wire_int(enum espi_vw_signal signal) -{ - if (signal == VW_SLP_S3_L) - CLEAR_BIT(NPCX_WKEN(MIWU_TABLE_2, MIWU_GROUP_1), 0); - else if (signal == VW_SLP_S4_L) - CLEAR_BIT(NPCX_WKEN(MIWU_TABLE_2, MIWU_GROUP_1), 1); - else if (signal == VW_SLP_S5_L) - CLEAR_BIT(NPCX_WKEN(MIWU_TABLE_2, MIWU_GROUP_1), 2); - else - return EC_ERROR_PARAM1; - - return EC_SUCCESS; -} - -/*****************************************************************************/ -/* VW event handlers */ - -#ifdef CONFIG_CHIPSET_RESET_HOOK -static void espi_chipset_reset(void) -{ - hook_notify(HOOK_CHIPSET_RESET); -} -DECLARE_DEFERRED(espi_chipset_reset); -#endif - -/* PLTRST# event handler */ -void espi_vw_evt_pltrst(void) -{ - int pltrst = espi_vw_get_wire(VW_PLTRST_L); - - CPRINTS("VW PLTRST: %d", pltrst); - - if (pltrst) { - /* PLTRST# deasserted */ -#if defined(CHIP_FAMILY_NPCX5) - /* See errata 2.22 */ - - /* Disable eSPI peripheral channel support first */ - CLEAR_BIT(NPCX_ESPICFG, NPCX_ESPICFG_PCCHN_SUPP); - - /* Initialize host settings */ - host_register_init(); - - /* Enable eSPI peripheral channel */ - SET_BIT(NPCX_ESPICFG, NPCX_ESPICFG_PCHANEN); - - /* Re-enable eSPI peripheral channel support */ - SET_BIT(NPCX_ESPICFG, NPCX_ESPICFG_PCCHN_SUPP); -#else - /* Initialize host settings */ - host_register_init(); - - /* Enable eSPI peripheral channel */ - SET_BIT(NPCX_ESPICFG, NPCX_ESPICFG_PCHANEN); -#endif - } else { - /* PLTRST# asserted */ -#ifdef CONFIG_CHIPSET_RESET_HOOK - hook_call_deferred(&espi_chipset_reset_data, MSEC); -#endif - } -} - -/* SLP_Sx event handler */ -void espi_vw_evt_slp_s3(void) -{ - CPRINTS("VW SLP_S3: %d", espi_vw_get_wire(VW_SLP_S3_L)); - espi_vw_power_signal_interrupt(VW_SLP_S3_L); -} - -void espi_vw_evt_slp_s4(void) -{ - CPRINTS("VW SLP_S4: %d", espi_vw_get_wire(VW_SLP_S4_L)); - espi_vw_power_signal_interrupt(VW_SLP_S4_L); -} - -void espi_vw_evt_slp_s5(void) -{ - CPRINTS("VW SLP_S5: %d", espi_vw_get_wire(VW_SLP_S5_L)); - espi_vw_power_signal_interrupt(VW_SLP_S5_L); -} - -/* OOB Reset event handler */ -void espi_vw_evt_oobrst(void) -{ - CPRINTS("VW OOB_RST: %d", espi_vw_get_wire(VW_OOB_RST_WARN)); - - /* Send ACK to host by WARN#'s wire */ - espi_vw_set_wire(VW_OOB_RST_ACK, espi_vw_get_wire(VW_OOB_RST_WARN)); -} - -/* SUS_WARN# event handler */ -void espi_vw_evt_sus_warn(void) -{ - CPRINTS("VW SUS_WARN#: %d", espi_vw_get_wire(VW_SUS_WARN_L)); - - udelay(100); - - /* Send ACK to host by WARN#'s wire */ - espi_vw_set_wire(VW_SUS_ACK, espi_vw_get_wire(VW_SUS_WARN_L)); -} - -/* HOSTRST WARN event handler */ -void espi_vw_evt_hostrst_warn(void) -{ - CPRINTS("VW HOST_RST_WARN#: %d", espi_vw_get_wire(VW_HOST_RST_WARN)); - - /* Send ACK to host by WARN#'s wire */ - espi_vw_set_wire(VW_HOST_RST_ACK, espi_vw_get_wire(VW_HOST_RST_WARN)); -} - -/*****************************************************************************/ -/* Interrupt handlers */ - -/* eSPI reset assert/de-assert interrupt */ -void espi_espirst_handler(void) -{ - /* Clear pending bit of WUI */ - SET_BIT(NPCX_WKPCL(MIWU_TABLE_0, MIWU_GROUP_5), 5); - - CPRINTS("eSPI RST issued!"); -} - -/* Handle eSPI virtual wire interrupt 1 */ -void __espi_wk2a_interrupt(void) -{ - uint8_t pending_bits = NPCX_WKPND(MIWU_TABLE_2, MIWU_GROUP_1); - - /* Clear pending bits of MIWU */ - NPCX_WKPCL(MIWU_TABLE_2, MIWU_GROUP_1) = pending_bits; - - /* Handle events of virtual-wire */ - if (IS_BIT_SET(pending_bits, 0)) - espi_vw_evt_slp_s3(); - if (IS_BIT_SET(pending_bits, 1)) - espi_vw_evt_slp_s4(); - if (IS_BIT_SET(pending_bits, 2)) - espi_vw_evt_slp_s5(); - if (IS_BIT_SET(pending_bits, 5)) - espi_vw_evt_pltrst(); - if (IS_BIT_SET(pending_bits, 6)) - espi_vw_evt_oobrst(); -} -DECLARE_IRQ(NPCX_IRQ_WKINTA_2, __espi_wk2a_interrupt, 3); - -/* Handle eSPI virtual wire interrupt 2 */ -void __espi_wk2b_interrupt(void) -{ - uint8_t pending_bits = NPCX_WKPND(MIWU_TABLE_2, MIWU_GROUP_2); - - /* Clear pending bits of MIWU */ - NPCX_WKPCL(MIWU_TABLE_2, MIWU_GROUP_2) = pending_bits; - - /* Handle events of virtual-wire */ - if (IS_BIT_SET(pending_bits, 4)) - espi_vw_evt_sus_warn(); - if (IS_BIT_SET(pending_bits, 0)) - espi_vw_evt_hostrst_warn(); -} -DECLARE_IRQ(NPCX_IRQ_WKINTB_2, __espi_wk2b_interrupt, 3); - -/* Interrupt handler for eSPI status changed */ -void espi_interrupt(void) -{ - int chan; - uint32_t mask, status; - -#if NPCX_FAMILY_VERSION >= NPCX_FAMILY_NPCX7 - /* - * Bit 17 of ESPIIE is reserved. We need to set the same bit in mask - * in case bit 17 in ESPISTS of npcx7 is not cleared in ISR. - */ - mask = NPCX_ESPIIE | BIT(NPCX_ESPISTS_VWUPDW); -#else - mask = NPCX_ESPIIE; -#endif - status = NPCX_ESPISTS & mask; - - while (status) { - /* Clear pending bits first */ - NPCX_ESPISTS = status; - - if (IS_BIT_SET(status, NPCX_ESPISTS_BERR)) - /* Always print eSPI Bus Errors */ - cprints(CC_LPC, "eSPI Bus Error"); - - /* eSPI inband reset(from VW) */ - if (IS_BIT_SET(status, NPCX_ESPISTS_IBRST)) { - CPRINTS("eSPI RST inband RST"); - espi_reset_recovery(); - - } /* eSPI reset (from eSPI_rst pin) */ - else if (IS_BIT_SET(status, NPCX_ESPISTS_ESPIRST)) { - CPRINTS("eSPI RST"); - chipset_handle_espi_reset_assert(); - espi_reset_recovery(); - } - - /* eSPI configuration is updated */ - if (IS_BIT_SET(status, NPCX_ESPISTS_CFGUPD)) { - /* - * If host enable/disable channel for VW/OOB/FLASH, EC - * should follow except Peripheral channel. It is - * handled by PLTRST separately. - */ - for (chan = NPCX_ESPI_CH_VW; chan < NPCX_ESPI_CH_COUNT; - chan++) { - if (!IS_PERIPHERAL_CHAN_ENABLE(chan) && - IS_HOST_CHAN_EN(chan)) - ENABLE_ESPI_CHAN(chan); - else if (IS_PERIPHERAL_CHAN_ENABLE(chan) && - !IS_HOST_CHAN_EN(chan)) - DISABLE_ESPI_CHAN(chan); - } - - /* - * Send BOOTLOAD_DONE and BOOTLOAD_STATUS - * events to host simultaneously. To indicate the - * completion of EC firmware code loading. - */ - if (boot_load_done == 0 && - IS_PERIPHERAL_CHAN_ENABLE(NPCX_ESPI_CH_VW)) { - - espi_vw_set_wire( - VW_PERIPHERAL_BTLD_STATUS_DONE, 1); - boot_load_done = 1; - } - } - - /* Any VW signal sent by Host - leave it, handle in MIWU ISR */ - if (IS_BIT_SET(status, NPCX_ESPISTS_VWUPD)) - CPRINTS("VW Updated INT"); - - /* Get status again */ - status = NPCX_ESPISTS & mask; - } -} -DECLARE_IRQ(NPCX_IRQ_ESPI, espi_interrupt, 4); - -/*****************************************************************************/ -/* eSPI Initialization functions */ -void espi_init(void) -{ - int i; - - /* Support all channels */ - NPCX_ESPICFG |= ESPI_SUPP_CH_ALL; - - /* Support all I/O modes */ - SET_FIELD(NPCX_ESPICFG, NPCX_ESPICFG_IOMODE_FIELD, - NPCX_ESPI_IO_MODE_ALL); - - /* Set eSPI speed to max supported */ - SET_FIELD(NPCX_ESPICFG, NPCX_ESPICFG_MAXFREQ_FIELD, - NPCX_ESPI_MAXFREQ_MAX); - - /* Configure Controller-to-Peripheral Virtual Wire indexes (Inputs) */ - for (i = 0; i < ARRAY_SIZE(espi_in_list); i++) - espi_vw_config_in(&espi_in_list[i]); - - /* Configure Peripheral-to-Controller Virtual Wire indexes (Outputs) */ - for (i = 0; i < ARRAY_SIZE(espi_out_list); i++) - espi_vw_config_out(&espi_out_list[i]); - - /* Configure MIWU for eSPI VW */ - for (i = 0; i < ARRAY_SIZE(espi_vw_int_list); i++) - espi_enable_vw_int(&espi_vw_int_list[i]); -} - -static int command_espi(int argc, char **argv) -{ - uint32_t chan; - char *e; - - if (argc == 1) { - return EC_ERROR_INVAL; - /* Get value of eSPI registers */ - } else if (argc == 2) { - int i; - - if (strcasecmp(argv[1], "cfg") == 0) { - ccprintf("ESPICFG [0x%08x]\n", NPCX_ESPICFG); - } else if (strcasecmp(argv[1], "vsm") == 0) { - for (i = 0; i < ESPI_VWEVSM_NUM; i++) { - uint32_t val = NPCX_VWEVSM(i); - uint8_t idx = VWEVSM_IDX_GET(val); - - ccprintf("VWEVSM%d: %02x [0x%08x]\n", i, idx, - val); - } - } else if (strcasecmp(argv[1], "vms") == 0) { - for (i = 0; i < ESPI_VWEVMS_NUM; i++) { - uint32_t val = NPCX_VWEVMS(i); - uint8_t idx = VWEVMS_IDX_GET(val); - - ccprintf("VWEVMS%d: %02x [0x%08x]\n", i, idx, - val); - } - } - /* Enable/Disable the channels of eSPI */ - } else if (argc == 3) { - uint32_t m = (uint32_t) strtoi(argv[2], &e, 0); - - if (*e) - return EC_ERROR_PARAM2; - if (m > 4) - return EC_ERROR_PARAM2; - else if (m == 4) - chan = 0x0F; - else - chan = 0x01 << m; - if (strcasecmp(argv[1], "en") == 0) - NPCX_ESPICFG = NPCX_ESPICFG | chan; - else if (strcasecmp(argv[1], "dis") == 0) - NPCX_ESPICFG = NPCX_ESPICFG & ~chan; - else - return EC_ERROR_PARAM1; - ccprintf("ESPICFG [0x%08x]\n", NPCX_ESPICFG); - } - return EC_SUCCESS; -} -DECLARE_CONSOLE_COMMAND(espi, command_espi, - "cfg/vms/vsm/en/dis [channel]", - "eSPI configurations"); |