diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/cannonlake/acpi.c | 39 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/acpi/gpio.asl | 20 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/acpi/gpio_cnp_h.asl | 18 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/acpi/gpio_op.asl | 74 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/include/soc/gpio_defs.h | 1 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/include/soc/gpio_defs_cnp_h.h | 1 |
6 files changed, 117 insertions, 36 deletions
diff --git a/src/soc/intel/cannonlake/acpi.c b/src/soc/intel/cannonlake/acpi.c index 84dfdad286..4dab3342f7 100644 --- a/src/soc/intel/cannonlake/acpi.c +++ b/src/soc/intel/cannonlake/acpi.c @@ -3,7 +3,7 @@ * * Copyright (C) 2009 coresystems GmbH * Copyright (C) 2014 Google Inc. - * Copyright (C) 2017 Intel Corporation. + * Copyright (C) 2017-2018 Intel Corporation. * * 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 @@ -248,3 +248,40 @@ int soc_madt_sci_irq_polarity(int sci) { return MP_IRQ_POLARITY_HIGH; } + +static int acpigen_soc_gpio_op(const char *op, unsigned int gpio_num) +{ + /* op (gpio_num) */ + acpigen_emit_namestring(op); + acpigen_write_integer(gpio_num); + return 0; +} + +static int acpigen_soc_get_gpio_state(const char *op, unsigned int gpio_num) +{ + /* Store (op (gpio_num), Local0) */ + acpigen_write_store(); + acpigen_soc_gpio_op(op, gpio_num); + acpigen_emit_byte(LOCAL0_OP); + return 0; +} + +int acpigen_soc_read_rx_gpio(unsigned int gpio_num) +{ + return acpigen_soc_get_gpio_state("\\_SB.PCI0.GRXS", gpio_num); +} + +int acpigen_soc_get_tx_gpio(unsigned int gpio_num) +{ + return acpigen_soc_get_gpio_state("\\_SB.PCI0.GTXS", gpio_num); +} + +int acpigen_soc_set_tx_gpio(unsigned int gpio_num) +{ + return acpigen_soc_gpio_op("\\_SB.PCI0.STXS", gpio_num); +} + +int acpigen_soc_clear_tx_gpio(unsigned int gpio_num) +{ + return acpigen_soc_gpio_op("\\_SB.PCI0.CTXS", gpio_num); +} diff --git a/src/soc/intel/cannonlake/acpi/gpio.asl b/src/soc/intel/cannonlake/acpi/gpio.asl index e05cb68642..1fa144f580 100644 --- a/src/soc/intel/cannonlake/acpi/gpio.asl +++ b/src/soc/intel/cannonlake/acpi/gpio.asl @@ -2,7 +2,7 @@ * This file is part of the coreboot project. * * Copyright (C) 2014 Google Inc. - * Copyright (C) 2015 Intel Corporation. + * Copyright (C) 2018 Intel Corporation. * * 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 @@ -16,7 +16,7 @@ #include <soc/gpio_defs.h> #include <soc/irq.h> #include <soc/pcr_ids.h> - +#include "gpio_op.asl" Device (GPIO) { @@ -107,19 +107,3 @@ Method (GADD, 1, NotSerialized) Add (Local2, PAD_CFG_BASE, Local2) Return (Add (Local2, Multiply (Local1, 16))) } - -/* - * Get GPIO Value - * Arg0 - GPIO Number - */ -Method (GRXS, 1, Serialized) -{ - OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) - Field (PREG, AnyAcc, NoLock, Preserve) - { - VAL0, 32 - } - And (GPIORXSTATE_MASK, ShiftRight (VAL0, GPIORXSTATE_SHIFT), Local0) - - Return (Local0) -} diff --git a/src/soc/intel/cannonlake/acpi/gpio_cnp_h.asl b/src/soc/intel/cannonlake/acpi/gpio_cnp_h.asl index e872b09dd0..acbd2ea430 100644 --- a/src/soc/intel/cannonlake/acpi/gpio_cnp_h.asl +++ b/src/soc/intel/cannonlake/acpi/gpio_cnp_h.asl @@ -15,7 +15,7 @@ #include <soc/gpio_defs_cnp_h.h> #include <soc/irq.h> #include <soc/pcr_ids.h> - +#include "gpio_op.asl" Device (GPIO) { @@ -107,19 +107,3 @@ Method (GADD, 1, NotSerialized) Add (Local2, PAD_CFG_BASE, Local2) Return (Add (Local2, Multiply (Local1, 16))) } - -/* - * Get GPIO Value - * Arg0 - GPIO Number - */ -Method (GRXS, 1, Serialized) -{ - OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) - Field (PREG, AnyAcc, NoLock, Preserve) - { - VAL0, 32 - } - And (GPIORXSTATE_MASK, ShiftRight (VAL0, GPIORXSTATE_SHIFT), Local0) - - Return (Local0) -} diff --git a/src/soc/intel/cannonlake/acpi/gpio_op.asl b/src/soc/intel/cannonlake/acpi/gpio_op.asl new file mode 100644 index 0000000000..0618601b9e --- /dev/null +++ b/src/soc/intel/cannonlake/acpi/gpio_op.asl @@ -0,0 +1,74 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018 Intel Corporation. + * + * 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. + */ + +/* + * Get GPIO Value + * Arg0 - GPIO Number + */ +Method (GRXS, 1, Serialized) +{ + OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) + Field (PREG, AnyAcc, NoLock, Preserve) + { + VAL0, 32 + } + And (GPIORXSTATE_MASK, ShiftRight (VAL0, GPIORXSTATE_SHIFT), Local0) + + Return (Local0) +} + +/* + * Get GPIO Tx Value + * Arg0 - GPIO Number + */ +Method (GTXS, 1, Serialized) +{ + OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) + Field (PREG, AnyAcc, NoLock, Preserve) + { + VAL0, 32 + } + And (GPIOTXSTATE_MASK, VAL0, Local0) + + Return (Local0) +} + +/* + * Set GPIO Tx Value + * Arg0 - GPIO Number + */ +Method (STXS, 1, Serialized) +{ + OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) + Field (PREG, AnyAcc, NoLock, Preserve) + { + VAL0, 32 + } + Or (GPIOTXSTATE_MASK, VAL0, VAL0) +} + +/* + * Clear GPIO Tx Value + * Arg0 - GPIO Number + */ +Method (CTXS, 1, Serialized) +{ + OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) + Field (PREG, AnyAcc, NoLock, Preserve) + { + VAL0, 32 + } + And (Not (GPIOTXSTATE_MASK), VAL0, VAL0) +} diff --git a/src/soc/intel/cannonlake/include/soc/gpio_defs.h b/src/soc/intel/cannonlake/include/soc/gpio_defs.h index 716f59d1c1..c282000d7e 100644 --- a/src/soc/intel/cannonlake/include/soc/gpio_defs.h +++ b/src/soc/intel/cannonlake/include/soc/gpio_defs.h @@ -252,4 +252,5 @@ #define GPIORXSTATE_MASK 0x1 #define GPIORXSTATE_SHIFT 1 +#define GPIOTXSTATE_MASK 0x1 #endif diff --git a/src/soc/intel/cannonlake/include/soc/gpio_defs_cnp_h.h b/src/soc/intel/cannonlake/include/soc/gpio_defs_cnp_h.h index ab04142551..d8d002cad0 100644 --- a/src/soc/intel/cannonlake/include/soc/gpio_defs_cnp_h.h +++ b/src/soc/intel/cannonlake/include/soc/gpio_defs_cnp_h.h @@ -326,4 +326,5 @@ #define GPIORXSTATE_MASK 0x1 #define GPIORXSTATE_SHIFT 1 +#define GPIOTXSTATE_MASK 0x1 #endif |