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Diffstat (limited to 'chip/npcx/espi.c')
-rw-r--r--chip/npcx/espi.c182
1 files changed, 89 insertions, 93 deletions
diff --git a/chip/npcx/espi.c b/chip/npcx/espi.c
index 7248c7711f..d64a22860d 100644
--- a/chip/npcx/espi.c
+++ b/chip/npcx/espi.c
@@ -1,4 +1,4 @@
-/* Copyright 2016 The Chromium OS Authors. All rights reserved.
+/* Copyright 2016 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
@@ -24,114 +24,114 @@
#define CPRINTS(...)
#else
#define CPUTS(outstr) cputs(CC_LPC, outstr)
-#define CPRINTS(format, args...) cprints(CC_LPC, format, ## args)
+#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 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 */
+ 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 */
+ 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 */
+ 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 */
+ 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 */
+/* IDX EN ENPL ENESP IE/WE VW Event Bit 0 - 3 (M->S) */
+#ifdef CONFIG_HOST_INTERFACE_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 */
+ { 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 */
+ { 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 */
+ { 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 */
+ { 0x06, 1, 1, 0, 0x0C }, /* SCI#, SMI#, RCIN#, HRST_ACK */
#else
- {0x06, 1, 1, 0, 0x0F}, /* SCI#, SMI#, RCIN#, HRST_ACK */
+ { 0x06, 1, 1, 0, 0x0F }, /* SCI#, SMI#, RCIN#, HRST_ACK */
#endif
- {0x40, 1, 0, 0, 0x01}, /* SUS_ACK, Reserve, Reserve, Reserve */
+ { 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},
+ { MIWU_TABLE_0, MIWU_GROUP_5, 5, MIWU_EDGE_FALLING },
/* SLP_S3 */
- {MIWU_TABLE_2, MIWU_GROUP_1, 0, MIWU_EDGE_ANYING},
+ { MIWU_TABLE_2, MIWU_GROUP_1, 0, MIWU_EDGE_ANYING },
/* SLP_S4 */
- {MIWU_TABLE_2, MIWU_GROUP_1, 1, MIWU_EDGE_ANYING},
+ { MIWU_TABLE_2, MIWU_GROUP_1, 1, MIWU_EDGE_ANYING },
/* SLP_S5 */
- {MIWU_TABLE_2, MIWU_GROUP_1, 2, MIWU_EDGE_ANYING},
+ { MIWU_TABLE_2, MIWU_GROUP_1, 2, MIWU_EDGE_ANYING },
/* VW_WIRE_PLTRST */
- {MIWU_TABLE_2, MIWU_GROUP_1, 5, MIWU_EDGE_ANYING},
+ { 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},
+ { 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},
+ { MIWU_TABLE_2, MIWU_GROUP_2, 0, MIWU_EDGE_ANYING },
/* VW_WIRE_SUS_WARN */
- {MIWU_TABLE_2, MIWU_GROUP_2, 4, MIWU_EDGE_ANYING},
+ { 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},
+ { 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 */
@@ -153,7 +153,7 @@ static void espi_reset_recovery(void)
static void espi_vw_config_in(const struct vwevms_config_t *config)
{
uint32_t val;
- uint8_t i, index;
+ uint8_t i, index;
switch (VM_TYPE(config->idx)) {
case ESPI_VW_TYPE_SYS_EV:
@@ -164,11 +164,10 @@ static void espi_vw_config_in(const struct vwevms_config_t *config)
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);
+ val |= VWEVMS_FIELD(config->idx, config->idx_en,
+ config->pltrst_en,
+ config->int_en,
+ config->espirst_en);
NPCX_VWEVMS(i) = val;
return;
}
@@ -196,11 +195,10 @@ static void espi_vw_config_out(const struct vwevsm_config_t *config)
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);
+ val |= VWEVSM_FIELD(config->idx, config->idx_en,
+ config->valid,
+ config->pltrst_en,
+ config->cdrst_en);
NPCX_VWEVSM(i) = val;
return;
}
@@ -218,8 +216,8 @@ 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;
+ uint8_t num = vwire_int->num;
+ uint8_t edge = vwire_int->edge;
/* Set detection mode to edge */
CLEAR_BIT(NPCX_WKMOD(table, group), num);
@@ -266,7 +264,7 @@ 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);
+ power_signal_interrupt((enum gpio_signal)signal);
}
void espi_wait_vw_not_dirty(enum espi_vw_signal signal, unsigned int timeout_us)
@@ -289,7 +287,7 @@ void espi_wait_vw_not_dirty(enum espi_vw_signal signal, unsigned int timeout_us)
timeout = get_time().val + (uint64_t)timeout_us;
while ((NPCX_VWEVSM(offset) & VWEVSM_DIRTY(1)) &&
- (get_time().val < timeout)) {
+ (get_time().val < timeout)) {
udelay(10);
}
}
@@ -609,12 +607,12 @@ static void espi_interrupt(void)
* handled by PLTRST separately.
*/
for (chan = NPCX_ESPI_CH_VW; chan < NPCX_ESPI_CH_COUNT;
- chan++) {
+ chan++) {
if (!IS_PERIPHERAL_CHAN_ENABLE(chan) &&
- IS_HOST_CHAN_EN(chan))
+ IS_HOST_CHAN_EN(chan))
ENABLE_ESPI_CHAN(chan);
else if (IS_PERIPHERAL_CHAN_ENABLE(chan) &&
- !IS_HOST_CHAN_EN(chan))
+ !IS_HOST_CHAN_EN(chan))
DISABLE_ESPI_CHAN(chan);
}
@@ -625,9 +623,8 @@ static void espi_interrupt(void)
*/
if (boot_load_done == 0 &&
IS_PERIPHERAL_CHAN_ENABLE(NPCX_ESPI_CH_VW)) {
-
- espi_vw_set_wire(
- VW_PERIPHERAL_BTLD_STATUS_DONE, 1);
+ espi_vw_set_wire(VW_PERIPHERAL_BTLD_STATUS_DONE,
+ 1);
boot_load_done = 1;
}
}
@@ -662,7 +659,7 @@ void espi_init(void)
/* Support all I/O modes */
SET_FIELD(NPCX_ESPICFG, NPCX_ESPICFG_IOMODE_FIELD,
- NPCX_ESPI_IO_MODE_ALL);
+ NPCX_ESPI_IO_MODE_ALL);
/* Set eSPI speed to max supported */
SET_FIELD(NPCX_ESPICFG, NPCX_ESPICFG_MAXFREQ_FIELD,
@@ -681,14 +678,14 @@ void espi_init(void)
espi_enable_vw_int(&espi_vw_int_list[i]);
}
-static int command_espi(int argc, char **argv)
+static int command_espi(int argc, const char **argv)
{
uint32_t chan;
char *e;
if (argc == 1) {
return EC_ERROR_INVAL;
- /* Get value of eSPI registers */
+ /* Get value of eSPI registers */
} else if (argc == 2) {
int i;
@@ -697,23 +694,23 @@ static int command_espi(int argc, char **argv)
} 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);
+ uint8_t idx = VWEVSM_IDX_GET(val);
ccprintf("VWEVSM%d: %02x [0x%08x]\n", i, idx,
- val);
+ 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);
+ uint8_t idx = VWEVMS_IDX_GET(val);
ccprintf("VWEVMS%d: %02x [0x%08x]\n", i, idx,
- val);
+ val);
}
}
- /* Enable/Disable the channels of eSPI */
+ /* Enable/Disable the channels of eSPI */
} else if (argc == 3) {
- uint32_t m = (uint32_t) strtoi(argv[2], &e, 0);
+ uint32_t m = (uint32_t)strtoi(argv[2], &e, 0);
if (*e)
return EC_ERROR_PARAM2;
@@ -733,6 +730,5 @@ static int command_espi(int argc, char **argv)
}
return EC_SUCCESS;
}
-DECLARE_CONSOLE_COMMAND(espi, command_espi,
- "cfg/vms/vsm/en/dis [channel]",
+DECLARE_CONSOLE_COMMAND(espi, command_espi, "cfg/vms/vsm/en/dis [channel]",
"eSPI configurations");
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