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Message-Id: <1467100608-11549-3-git-send-email-jui.nee.tan@intel.com>
Date: Tue, 28 Jun 2016 15:56:47 +0800
From: Tan Jui Nee <jui.nee.tan@...el.com>
To: mika.westerberg@...ux.intel.com, heikki.krogerus@...ux.intel.com,
andriy.shevchenko@...ux.intel.com, tglx@...utronix.de,
mingo@...hat.com, hpa@...or.com, x86@...nel.org,
ptyser@...-inc.com, lee.jones@...aro.org, linus.walleij@...aro.org
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
jui.nee.tan@...el.com, jonathan.yong@...el.com,
ong.hock.yu@...el.com, weifeng.voon@...el.com,
wan.ahmad.zainie.wan.mohamad@...el.com
Subject: [PATCH v5 2/3] mfd: lpc_ich: Prepare to split lpc-ich driver
This patch follows the example of mfd/wm831x and splits it into an
interface independent core since it is growing quite fast with
many table entries.
Signed-off-by: Tan Jui Nee <jui.nee.tan@...el.com>
---
drivers/mfd/Makefile | 1 +
drivers/mfd/lpc_ich-core.c | 1126 ++++++++++++++++++++++++++++++++++++++++++++
drivers/mfd/lpc_ich.c | 1126 --------------------------------------------
3 files changed, 1127 insertions(+), 1126 deletions(-)
create mode 100644 drivers/mfd/lpc_ich-core.c
delete mode 100644 drivers/mfd/lpc_ich.c
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 42a66e1..1dfe5fb 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -155,6 +155,7 @@ obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
obj-$(CONFIG_MFD_KEMPLD) += kempld-core.o
obj-$(CONFIG_MFD_INTEL_QUARK_I2C_GPIO) += intel_quark_i2c_gpio.o
obj-$(CONFIG_LPC_SCH) += lpc_sch.o
+lpc_ich-objs := lpc_ich-core.o
obj-$(CONFIG_LPC_ICH) += lpc_ich.o
obj-$(CONFIG_MFD_RDC321X) += rdc321x-southbridge.o
obj-$(CONFIG_MFD_JANZ_CMODIO) += janz-cmodio.o
diff --git a/drivers/mfd/lpc_ich-core.c b/drivers/mfd/lpc_ich-core.c
new file mode 100644
index 0000000..bd3aa45
--- /dev/null
+++ b/drivers/mfd/lpc_ich-core.c
@@ -0,0 +1,1126 @@
+/*
+ * lpc_ich.c - LPC interface for Intel ICH
+ *
+ * LPC bridge function of the Intel ICH contains many other
+ * functional units, such as Interrupt controllers, Timers,
+ * Power Management, System Management, GPIO, RTC, and LPC
+ * Configuration Registers.
+ *
+ * This driver is derived from lpc_sch.
+
+ * Copyright (c) 2011 Extreme Engineering Solution, Inc.
+ * Author: Aaron Sierra <asierra@...-inc.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License 2 as published
+ * by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * This driver supports the following I/O Controller hubs:
+ * (See the intel documentation on http://developer.intel.com.)
+ * document number 290655-003, 290677-014: 82801AA (ICH), 82801AB (ICHO)
+ * document number 290687-002, 298242-027: 82801BA (ICH2)
+ * document number 290733-003, 290739-013: 82801CA (ICH3-S)
+ * document number 290716-001, 290718-007: 82801CAM (ICH3-M)
+ * document number 290744-001, 290745-025: 82801DB (ICH4)
+ * document number 252337-001, 252663-008: 82801DBM (ICH4-M)
+ * document number 273599-001, 273645-002: 82801E (C-ICH)
+ * document number 252516-001, 252517-028: 82801EB (ICH5), 82801ER (ICH5R)
+ * document number 300641-004, 300884-013: 6300ESB
+ * document number 301473-002, 301474-026: 82801F (ICH6)
+ * document number 313082-001, 313075-006: 631xESB, 632xESB
+ * document number 307013-003, 307014-024: 82801G (ICH7)
+ * document number 322896-001, 322897-001: NM10
+ * document number 313056-003, 313057-017: 82801H (ICH8)
+ * document number 316972-004, 316973-012: 82801I (ICH9)
+ * document number 319973-002, 319974-002: 82801J (ICH10)
+ * document number 322169-001, 322170-003: 5 Series, 3400 Series (PCH)
+ * document number 320066-003, 320257-008: EP80597 (IICH)
+ * document number 324645-001, 324646-001: Cougar Point (CPT)
+ * document number TBD : Patsburg (PBG)
+ * document number TBD : DH89xxCC
+ * document number TBD : Panther Point
+ * document number TBD : Lynx Point
+ * document number TBD : Lynx Point-LP
+ * document number TBD : Wellsburg
+ * document number TBD : Avoton SoC
+ * document number TBD : Coleto Creek
+ * document number TBD : Wildcat Point-LP
+ * document number TBD : 9 Series
+ * document number TBD : Lewisburg
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/lpc_ich.h>
+#include <linux/platform_data/itco_wdt.h>
+
+#define ACPIBASE 0x40
+#define ACPIBASE_GPE_OFF 0x28
+#define ACPIBASE_GPE_END 0x2f
+#define ACPIBASE_SMI_OFF 0x30
+#define ACPIBASE_SMI_END 0x33
+#define ACPIBASE_PMC_OFF 0x08
+#define ACPIBASE_PMC_END 0x0c
+#define ACPIBASE_TCO_OFF 0x60
+#define ACPIBASE_TCO_END 0x7f
+#define ACPICTRL_PMCBASE 0x44
+
+#define ACPIBASE_GCS_OFF 0x3410
+#define ACPIBASE_GCS_END 0x3414
+
+#define GPIOBASE_ICH0 0x58
+#define GPIOCTRL_ICH0 0x5C
+#define GPIOBASE_ICH6 0x48
+#define GPIOCTRL_ICH6 0x4C
+
+#define RCBABASE 0xf0
+
+#define wdt_io_res(i) wdt_res(0, i)
+#define wdt_mem_res(i) wdt_res(ICH_RES_MEM_OFF, i)
+#define wdt_res(b, i) (&wdt_ich_res[(b) + (i)])
+
+struct lpc_ich_priv {
+ int chipset;
+
+ int abase; /* ACPI base */
+ int actrl_pbase; /* ACPI control or PMC base */
+ int gbase; /* GPIO base */
+ int gctrl; /* GPIO control */
+
+ int abase_save; /* Cached ACPI base value */
+ int actrl_pbase_save; /* Cached ACPI control or PMC base value */
+ int gctrl_save; /* Cached GPIO control value */
+};
+
+static struct resource wdt_ich_res[] = {
+ /* ACPI - TCO */
+ {
+ .flags = IORESOURCE_IO,
+ },
+ /* ACPI - SMI */
+ {
+ .flags = IORESOURCE_IO,
+ },
+ /* GCS or PMC */
+ {
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource gpio_ich_res[] = {
+ /* GPIO */
+ {
+ .flags = IORESOURCE_IO,
+ },
+ /* ACPI - GPE0 */
+ {
+ .flags = IORESOURCE_IO,
+ },
+};
+
+static struct mfd_cell lpc_ich_wdt_cell = {
+ .name = "iTCO_wdt",
+ .num_resources = ARRAY_SIZE(wdt_ich_res),
+ .resources = wdt_ich_res,
+ .ignore_resource_conflicts = true,
+};
+
+static struct mfd_cell lpc_ich_gpio_cell = {
+ .name = "gpio_ich",
+ .num_resources = ARRAY_SIZE(gpio_ich_res),
+ .resources = gpio_ich_res,
+ .ignore_resource_conflicts = true,
+};
+
+/* chipset related info */
+enum lpc_chipsets {
+ LPC_ICH = 0, /* ICH */
+ LPC_ICH0, /* ICH0 */
+ LPC_ICH2, /* ICH2 */
+ LPC_ICH2M, /* ICH2-M */
+ LPC_ICH3, /* ICH3-S */
+ LPC_ICH3M, /* ICH3-M */
+ LPC_ICH4, /* ICH4 */
+ LPC_ICH4M, /* ICH4-M */
+ LPC_CICH, /* C-ICH */
+ LPC_ICH5, /* ICH5 & ICH5R */
+ LPC_6300ESB, /* 6300ESB */
+ LPC_ICH6, /* ICH6 & ICH6R */
+ LPC_ICH6M, /* ICH6-M */
+ LPC_ICH6W, /* ICH6W & ICH6RW */
+ LPC_631XESB, /* 631xESB/632xESB */
+ LPC_ICH7, /* ICH7 & ICH7R */
+ LPC_ICH7DH, /* ICH7DH */
+ LPC_ICH7M, /* ICH7-M & ICH7-U */
+ LPC_ICH7MDH, /* ICH7-M DH */
+ LPC_NM10, /* NM10 */
+ LPC_ICH8, /* ICH8 & ICH8R */
+ LPC_ICH8DH, /* ICH8DH */
+ LPC_ICH8DO, /* ICH8DO */
+ LPC_ICH8M, /* ICH8M */
+ LPC_ICH8ME, /* ICH8M-E */
+ LPC_ICH9, /* ICH9 */
+ LPC_ICH9R, /* ICH9R */
+ LPC_ICH9DH, /* ICH9DH */
+ LPC_ICH9DO, /* ICH9DO */
+ LPC_ICH9M, /* ICH9M */
+ LPC_ICH9ME, /* ICH9M-E */
+ LPC_ICH10, /* ICH10 */
+ LPC_ICH10R, /* ICH10R */
+ LPC_ICH10D, /* ICH10D */
+ LPC_ICH10DO, /* ICH10DO */
+ LPC_PCH, /* PCH Desktop Full Featured */
+ LPC_PCHM, /* PCH Mobile Full Featured */
+ LPC_P55, /* P55 */
+ LPC_PM55, /* PM55 */
+ LPC_H55, /* H55 */
+ LPC_QM57, /* QM57 */
+ LPC_H57, /* H57 */
+ LPC_HM55, /* HM55 */
+ LPC_Q57, /* Q57 */
+ LPC_HM57, /* HM57 */
+ LPC_PCHMSFF, /* PCH Mobile SFF Full Featured */
+ LPC_QS57, /* QS57 */
+ LPC_3400, /* 3400 */
+ LPC_3420, /* 3420 */
+ LPC_3450, /* 3450 */
+ LPC_EP80579, /* EP80579 */
+ LPC_CPT, /* Cougar Point */
+ LPC_CPTD, /* Cougar Point Desktop */
+ LPC_CPTM, /* Cougar Point Mobile */
+ LPC_PBG, /* Patsburg */
+ LPC_DH89XXCC, /* DH89xxCC */
+ LPC_PPT, /* Panther Point */
+ LPC_LPT, /* Lynx Point */
+ LPC_LPT_LP, /* Lynx Point-LP */
+ LPC_WBG, /* Wellsburg */
+ LPC_AVN, /* Avoton SoC */
+ LPC_BAYTRAIL, /* Bay Trail SoC */
+ LPC_COLETO, /* Coleto Creek */
+ LPC_WPT_LP, /* Wildcat Point-LP */
+ LPC_BRASWELL, /* Braswell SoC */
+ LPC_LEWISBURG, /* Lewisburg */
+ LPC_9S, /* 9 Series */
+};
+
+static struct lpc_ich_info lpc_chipset_info[] = {
+ [LPC_ICH] = {
+ .name = "ICH",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH0] = {
+ .name = "ICH0",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH2] = {
+ .name = "ICH2",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH2M] = {
+ .name = "ICH2-M",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH3] = {
+ .name = "ICH3-S",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH3M] = {
+ .name = "ICH3-M",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH4] = {
+ .name = "ICH4",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH4M] = {
+ .name = "ICH4-M",
+ .iTCO_version = 1,
+ },
+ [LPC_CICH] = {
+ .name = "C-ICH",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH5] = {
+ .name = "ICH5 or ICH5R",
+ .iTCO_version = 1,
+ },
+ [LPC_6300ESB] = {
+ .name = "6300ESB",
+ .iTCO_version = 1,
+ },
+ [LPC_ICH6] = {
+ .name = "ICH6 or ICH6R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V6_GPIO,
+ },
+ [LPC_ICH6M] = {
+ .name = "ICH6-M",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V6_GPIO,
+ },
+ [LPC_ICH6W] = {
+ .name = "ICH6W or ICH6RW",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V6_GPIO,
+ },
+ [LPC_631XESB] = {
+ .name = "631xESB/632xESB",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V6_GPIO,
+ },
+ [LPC_ICH7] = {
+ .name = "ICH7 or ICH7R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH7DH] = {
+ .name = "ICH7DH",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH7M] = {
+ .name = "ICH7-M or ICH7-U",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH7MDH] = {
+ .name = "ICH7-M DH",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_NM10] = {
+ .name = "NM10",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH8] = {
+ .name = "ICH8 or ICH8R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH8DH] = {
+ .name = "ICH8DH",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH8DO] = {
+ .name = "ICH8DO",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH8M] = {
+ .name = "ICH8M",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH8ME] = {
+ .name = "ICH8M-E",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V7_GPIO,
+ },
+ [LPC_ICH9] = {
+ .name = "ICH9",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9R] = {
+ .name = "ICH9R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9DH] = {
+ .name = "ICH9DH",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9DO] = {
+ .name = "ICH9DO",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9M] = {
+ .name = "ICH9M",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH9ME] = {
+ .name = "ICH9M-E",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V9_GPIO,
+ },
+ [LPC_ICH10] = {
+ .name = "ICH10",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V10CONS_GPIO,
+ },
+ [LPC_ICH10R] = {
+ .name = "ICH10R",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V10CONS_GPIO,
+ },
+ [LPC_ICH10D] = {
+ .name = "ICH10D",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V10CORP_GPIO,
+ },
+ [LPC_ICH10DO] = {
+ .name = "ICH10DO",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V10CORP_GPIO,
+ },
+ [LPC_PCH] = {
+ .name = "PCH Desktop Full Featured",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_PCHM] = {
+ .name = "PCH Mobile Full Featured",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_P55] = {
+ .name = "P55",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_PM55] = {
+ .name = "PM55",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_H55] = {
+ .name = "H55",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_QM57] = {
+ .name = "QM57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_H57] = {
+ .name = "H57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_HM55] = {
+ .name = "HM55",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_Q57] = {
+ .name = "Q57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_HM57] = {
+ .name = "HM57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_PCHMSFF] = {
+ .name = "PCH Mobile SFF Full Featured",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_QS57] = {
+ .name = "QS57",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_3400] = {
+ .name = "3400",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_3420] = {
+ .name = "3420",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_3450] = {
+ .name = "3450",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_EP80579] = {
+ .name = "EP80579",
+ .iTCO_version = 2,
+ },
+ [LPC_CPT] = {
+ .name = "Cougar Point",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_CPTD] = {
+ .name = "Cougar Point Desktop",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_CPTM] = {
+ .name = "Cougar Point Mobile",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_PBG] = {
+ .name = "Patsburg",
+ .iTCO_version = 2,
+ },
+ [LPC_DH89XXCC] = {
+ .name = "DH89xxCC",
+ .iTCO_version = 2,
+ },
+ [LPC_PPT] = {
+ .name = "Panther Point",
+ .iTCO_version = 2,
+ .gpio_version = ICH_V5_GPIO,
+ },
+ [LPC_LPT] = {
+ .name = "Lynx Point",
+ .iTCO_version = 2,
+ },
+ [LPC_LPT_LP] = {
+ .name = "Lynx Point_LP",
+ .iTCO_version = 2,
+ },
+ [LPC_WBG] = {
+ .name = "Wellsburg",
+ .iTCO_version = 2,
+ },
+ [LPC_AVN] = {
+ .name = "Avoton SoC",
+ .iTCO_version = 3,
+ .gpio_version = AVOTON_GPIO,
+ },
+ [LPC_BAYTRAIL] = {
+ .name = "Bay Trail SoC",
+ .iTCO_version = 3,
+ },
+ [LPC_COLETO] = {
+ .name = "Coleto Creek",
+ .iTCO_version = 2,
+ },
+ [LPC_WPT_LP] = {
+ .name = "Wildcat Point_LP",
+ .iTCO_version = 2,
+ },
+ [LPC_BRASWELL] = {
+ .name = "Braswell SoC",
+ .iTCO_version = 3,
+ },
+ [LPC_LEWISBURG] = {
+ .name = "Lewisburg",
+ .iTCO_version = 2,
+ },
+ [LPC_9S] = {
+ .name = "9 Series",
+ .iTCO_version = 2,
+ },
+};
+
+/*
+ * This data only exists for exporting the supported PCI ids
+ * via MODULE_DEVICE_TABLE. We do not actually register a
+ * pci_driver, because the I/O Controller Hub has also other
+ * functions that probably will be registered by other drivers.
+ */
+static const struct pci_device_id lpc_ich_ids[] = {
+ { PCI_VDEVICE(INTEL, 0x0f1c), LPC_BAYTRAIL},
+ { PCI_VDEVICE(INTEL, 0x1c41), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c42), LPC_CPTD},
+ { PCI_VDEVICE(INTEL, 0x1c43), LPC_CPTM},
+ { PCI_VDEVICE(INTEL, 0x1c44), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c45), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c46), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c47), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c48), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c49), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4a), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4b), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4c), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4d), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4e), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c4f), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c50), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c51), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c52), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c53), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c54), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c55), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c56), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c57), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c58), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c59), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5a), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5b), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5c), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5d), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5e), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1c5f), LPC_CPT},
+ { PCI_VDEVICE(INTEL, 0x1d40), LPC_PBG},
+ { PCI_VDEVICE(INTEL, 0x1d41), LPC_PBG},
+ { PCI_VDEVICE(INTEL, 0x1e40), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e41), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e42), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e43), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e44), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e45), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e46), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e47), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e48), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e49), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4a), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4b), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4c), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4d), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4e), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e4f), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e50), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e51), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e52), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e53), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e54), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e55), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e56), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e57), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e58), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e59), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5a), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5b), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5c), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5d), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5e), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1e5f), LPC_PPT},
+ { PCI_VDEVICE(INTEL, 0x1f38), LPC_AVN},
+ { PCI_VDEVICE(INTEL, 0x1f39), LPC_AVN},
+ { PCI_VDEVICE(INTEL, 0x1f3a), LPC_AVN},
+ { PCI_VDEVICE(INTEL, 0x1f3b), LPC_AVN},
+ { PCI_VDEVICE(INTEL, 0x229c), LPC_BRASWELL},
+ { PCI_VDEVICE(INTEL, 0x2310), LPC_DH89XXCC},
+ { PCI_VDEVICE(INTEL, 0x2390), LPC_COLETO},
+ { PCI_VDEVICE(INTEL, 0x2410), LPC_ICH},
+ { PCI_VDEVICE(INTEL, 0x2420), LPC_ICH0},
+ { PCI_VDEVICE(INTEL, 0x2440), LPC_ICH2},
+ { PCI_VDEVICE(INTEL, 0x244c), LPC_ICH2M},
+ { PCI_VDEVICE(INTEL, 0x2450), LPC_CICH},
+ { PCI_VDEVICE(INTEL, 0x2480), LPC_ICH3},
+ { PCI_VDEVICE(INTEL, 0x248c), LPC_ICH3M},
+ { PCI_VDEVICE(INTEL, 0x24c0), LPC_ICH4},
+ { PCI_VDEVICE(INTEL, 0x24cc), LPC_ICH4M},
+ { PCI_VDEVICE(INTEL, 0x24d0), LPC_ICH5},
+ { PCI_VDEVICE(INTEL, 0x25a1), LPC_6300ESB},
+ { PCI_VDEVICE(INTEL, 0x2640), LPC_ICH6},
+ { PCI_VDEVICE(INTEL, 0x2641), LPC_ICH6M},
+ { PCI_VDEVICE(INTEL, 0x2642), LPC_ICH6W},
+ { PCI_VDEVICE(INTEL, 0x2670), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2671), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2672), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2673), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2674), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2675), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2676), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2677), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2678), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x2679), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267a), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267b), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267c), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267d), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267e), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x267f), LPC_631XESB},
+ { PCI_VDEVICE(INTEL, 0x27b0), LPC_ICH7DH},
+ { PCI_VDEVICE(INTEL, 0x27b8), LPC_ICH7},
+ { PCI_VDEVICE(INTEL, 0x27b9), LPC_ICH7M},
+ { PCI_VDEVICE(INTEL, 0x27bc), LPC_NM10},
+ { PCI_VDEVICE(INTEL, 0x27bd), LPC_ICH7MDH},
+ { PCI_VDEVICE(INTEL, 0x2810), LPC_ICH8},
+ { PCI_VDEVICE(INTEL, 0x2811), LPC_ICH8ME},
+ { PCI_VDEVICE(INTEL, 0x2812), LPC_ICH8DH},
+ { PCI_VDEVICE(INTEL, 0x2814), LPC_ICH8DO},
+ { PCI_VDEVICE(INTEL, 0x2815), LPC_ICH8M},
+ { PCI_VDEVICE(INTEL, 0x2912), LPC_ICH9DH},
+ { PCI_VDEVICE(INTEL, 0x2914), LPC_ICH9DO},
+ { PCI_VDEVICE(INTEL, 0x2916), LPC_ICH9R},
+ { PCI_VDEVICE(INTEL, 0x2917), LPC_ICH9ME},
+ { PCI_VDEVICE(INTEL, 0x2918), LPC_ICH9},
+ { PCI_VDEVICE(INTEL, 0x2919), LPC_ICH9M},
+ { PCI_VDEVICE(INTEL, 0x3a14), LPC_ICH10DO},
+ { PCI_VDEVICE(INTEL, 0x3a16), LPC_ICH10R},
+ { PCI_VDEVICE(INTEL, 0x3a18), LPC_ICH10},
+ { PCI_VDEVICE(INTEL, 0x3a1a), LPC_ICH10D},
+ { PCI_VDEVICE(INTEL, 0x3b00), LPC_PCH},
+ { PCI_VDEVICE(INTEL, 0x3b01), LPC_PCHM},
+ { PCI_VDEVICE(INTEL, 0x3b02), LPC_P55},
+ { PCI_VDEVICE(INTEL, 0x3b03), LPC_PM55},
+ { PCI_VDEVICE(INTEL, 0x3b06), LPC_H55},
+ { PCI_VDEVICE(INTEL, 0x3b07), LPC_QM57},
+ { PCI_VDEVICE(INTEL, 0x3b08), LPC_H57},
+ { PCI_VDEVICE(INTEL, 0x3b09), LPC_HM55},
+ { PCI_VDEVICE(INTEL, 0x3b0a), LPC_Q57},
+ { PCI_VDEVICE(INTEL, 0x3b0b), LPC_HM57},
+ { PCI_VDEVICE(INTEL, 0x3b0d), LPC_PCHMSFF},
+ { PCI_VDEVICE(INTEL, 0x3b0f), LPC_QS57},
+ { PCI_VDEVICE(INTEL, 0x3b12), LPC_3400},
+ { PCI_VDEVICE(INTEL, 0x3b14), LPC_3420},
+ { PCI_VDEVICE(INTEL, 0x3b16), LPC_3450},
+ { PCI_VDEVICE(INTEL, 0x5031), LPC_EP80579},
+ { PCI_VDEVICE(INTEL, 0x8c40), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c41), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c42), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c43), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c44), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c45), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c46), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c47), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c48), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c49), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4a), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4b), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4c), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4d), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4e), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c4f), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c50), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c51), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c52), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c53), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c54), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c55), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c56), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c57), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c58), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c59), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5a), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5b), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5c), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5d), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5e), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8c5f), LPC_LPT},
+ { PCI_VDEVICE(INTEL, 0x8cc1), LPC_9S},
+ { PCI_VDEVICE(INTEL, 0x8cc2), LPC_9S},
+ { PCI_VDEVICE(INTEL, 0x8cc3), LPC_9S},
+ { PCI_VDEVICE(INTEL, 0x8cc4), LPC_9S},
+ { PCI_VDEVICE(INTEL, 0x8cc6), LPC_9S},
+ { PCI_VDEVICE(INTEL, 0x8d40), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d41), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d42), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d43), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d44), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d45), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d46), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d47), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d48), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d49), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d4a), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d4b), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d4c), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d4d), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d4e), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d4f), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d50), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d51), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d52), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d53), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d54), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d55), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d56), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d57), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d58), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d59), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d5a), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d5b), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d5c), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d5d), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d5e), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x8d5f), LPC_WBG},
+ { PCI_VDEVICE(INTEL, 0x9c40), LPC_LPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9c41), LPC_LPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9c42), LPC_LPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9c43), LPC_LPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9c44), LPC_LPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9c45), LPC_LPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9c46), LPC_LPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9c47), LPC_LPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9cc1), LPC_WPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9cc2), LPC_WPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9cc3), LPC_WPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9cc5), LPC_WPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9cc6), LPC_WPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9cc7), LPC_WPT_LP},
+ { PCI_VDEVICE(INTEL, 0x9cc9), LPC_WPT_LP},
+ { PCI_VDEVICE(INTEL, 0xa1c1), LPC_LEWISBURG},
+ { PCI_VDEVICE(INTEL, 0xa1c2), LPC_LEWISBURG},
+ { PCI_VDEVICE(INTEL, 0xa1c3), LPC_LEWISBURG},
+ { PCI_VDEVICE(INTEL, 0xa1c4), LPC_LEWISBURG},
+ { PCI_VDEVICE(INTEL, 0xa1c5), LPC_LEWISBURG},
+ { PCI_VDEVICE(INTEL, 0xa1c6), LPC_LEWISBURG},
+ { PCI_VDEVICE(INTEL, 0xa1c7), LPC_LEWISBURG},
+ { PCI_VDEVICE(INTEL, 0xa242), LPC_LEWISBURG},
+ { PCI_VDEVICE(INTEL, 0xa243), LPC_LEWISBURG},
+ { 0, }, /* End of list */
+};
+MODULE_DEVICE_TABLE(pci, lpc_ich_ids);
+
+static void lpc_ich_restore_config_space(struct pci_dev *dev)
+{
+ struct lpc_ich_priv *priv = pci_get_drvdata(dev);
+
+ if (priv->abase_save >= 0) {
+ pci_write_config_byte(dev, priv->abase, priv->abase_save);
+ priv->abase_save = -1;
+ }
+
+ if (priv->actrl_pbase_save >= 0) {
+ pci_write_config_byte(dev, priv->actrl_pbase,
+ priv->actrl_pbase_save);
+ priv->actrl_pbase_save = -1;
+ }
+
+ if (priv->gctrl_save >= 0) {
+ pci_write_config_byte(dev, priv->gctrl, priv->gctrl_save);
+ priv->gctrl_save = -1;
+ }
+}
+
+static void lpc_ich_enable_acpi_space(struct pci_dev *dev)
+{
+ struct lpc_ich_priv *priv = pci_get_drvdata(dev);
+ u8 reg_save;
+
+ switch (lpc_chipset_info[priv->chipset].iTCO_version) {
+ case 3:
+ /*
+ * Some chipsets (eg Avoton) enable the ACPI space in the
+ * ACPI BASE register.
+ */
+ pci_read_config_byte(dev, priv->abase, ®_save);
+ pci_write_config_byte(dev, priv->abase, reg_save | 0x2);
+ priv->abase_save = reg_save;
+ break;
+ default:
+ /*
+ * Most chipsets enable the ACPI space in the ACPI control
+ * register.
+ */
+ pci_read_config_byte(dev, priv->actrl_pbase, ®_save);
+ pci_write_config_byte(dev, priv->actrl_pbase, reg_save | 0x80);
+ priv->actrl_pbase_save = reg_save;
+ break;
+ }
+}
+
+static void lpc_ich_enable_gpio_space(struct pci_dev *dev)
+{
+ struct lpc_ich_priv *priv = pci_get_drvdata(dev);
+ u8 reg_save;
+
+ pci_read_config_byte(dev, priv->gctrl, ®_save);
+ pci_write_config_byte(dev, priv->gctrl, reg_save | 0x10);
+ priv->gctrl_save = reg_save;
+}
+
+static void lpc_ich_enable_pmc_space(struct pci_dev *dev)
+{
+ struct lpc_ich_priv *priv = pci_get_drvdata(dev);
+ u8 reg_save;
+
+ pci_read_config_byte(dev, priv->actrl_pbase, ®_save);
+ pci_write_config_byte(dev, priv->actrl_pbase, reg_save | 0x2);
+
+ priv->actrl_pbase_save = reg_save;
+}
+
+static int lpc_ich_finalize_wdt_cell(struct pci_dev *dev)
+{
+ struct itco_wdt_platform_data *pdata;
+ struct lpc_ich_priv *priv = pci_get_drvdata(dev);
+ struct lpc_ich_info *info;
+ struct mfd_cell *cell = &lpc_ich_wdt_cell;
+
+ pdata = devm_kzalloc(&dev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ info = &lpc_chipset_info[priv->chipset];
+
+ pdata->version = info->iTCO_version;
+ strlcpy(pdata->name, info->name, sizeof(pdata->name));
+
+ cell->platform_data = pdata;
+ cell->pdata_size = sizeof(*pdata);
+ return 0;
+}
+
+static void lpc_ich_finalize_gpio_cell(struct pci_dev *dev)
+{
+ struct lpc_ich_priv *priv = pci_get_drvdata(dev);
+ struct mfd_cell *cell = &lpc_ich_gpio_cell;
+
+ cell->platform_data = &lpc_chipset_info[priv->chipset];
+ cell->pdata_size = sizeof(struct lpc_ich_info);
+}
+
+/*
+ * We don't check for resource conflict globally. There are 2 or 3 independent
+ * GPIO groups and it's enough to have access to one of these to instantiate
+ * the device.
+ */
+static int lpc_ich_check_conflict_gpio(struct resource *res)
+{
+ int ret;
+ u8 use_gpio = 0;
+
+ if (resource_size(res) >= 0x50 &&
+ !acpi_check_region(res->start + 0x40, 0x10, "LPC ICH GPIO3"))
+ use_gpio |= 1 << 2;
+
+ if (!acpi_check_region(res->start + 0x30, 0x10, "LPC ICH GPIO2"))
+ use_gpio |= 1 << 1;
+
+ ret = acpi_check_region(res->start + 0x00, 0x30, "LPC ICH GPIO1");
+ if (!ret)
+ use_gpio |= 1 << 0;
+
+ return use_gpio ? use_gpio : ret;
+}
+
+static int lpc_ich_init_gpio(struct pci_dev *dev)
+{
+ struct lpc_ich_priv *priv = pci_get_drvdata(dev);
+ u32 base_addr_cfg;
+ u32 base_addr;
+ int ret;
+ bool acpi_conflict = false;
+ struct resource *res;
+
+ /* Setup power management base register */
+ pci_read_config_dword(dev, priv->abase, &base_addr_cfg);
+ base_addr = base_addr_cfg & 0x0000ff80;
+ if (!base_addr) {
+ dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n");
+ lpc_ich_gpio_cell.num_resources--;
+ goto gpe0_done;
+ }
+
+ res = &gpio_ich_res[ICH_RES_GPE0];
+ res->start = base_addr + ACPIBASE_GPE_OFF;
+ res->end = base_addr + ACPIBASE_GPE_END;
+ ret = acpi_check_resource_conflict(res);
+ if (ret) {
+ /*
+ * This isn't fatal for the GPIO, but we have to make sure that
+ * the platform_device subsystem doesn't see this resource
+ * or it will register an invalid region.
+ */
+ lpc_ich_gpio_cell.num_resources--;
+ acpi_conflict = true;
+ } else {
+ lpc_ich_enable_acpi_space(dev);
+ }
+
+gpe0_done:
+ /* Setup GPIO base register */
+ pci_read_config_dword(dev, priv->gbase, &base_addr_cfg);
+ base_addr = base_addr_cfg & 0x0000ff80;
+ if (!base_addr) {
+ dev_notice(&dev->dev, "I/O space for GPIO uninitialized\n");
+ ret = -ENODEV;
+ goto gpio_done;
+ }
+
+ /* Older devices provide fewer GPIO and have a smaller resource size. */
+ res = &gpio_ich_res[ICH_RES_GPIO];
+ res->start = base_addr;
+ switch (lpc_chipset_info[priv->chipset].gpio_version) {
+ case ICH_V5_GPIO:
+ case ICH_V10CORP_GPIO:
+ res->end = res->start + 128 - 1;
+ break;
+ default:
+ res->end = res->start + 64 - 1;
+ break;
+ }
+
+ ret = lpc_ich_check_conflict_gpio(res);
+ if (ret < 0) {
+ /* this isn't necessarily fatal for the GPIO */
+ acpi_conflict = true;
+ goto gpio_done;
+ }
+ lpc_chipset_info[priv->chipset].use_gpio = ret;
+ lpc_ich_enable_gpio_space(dev);
+
+ lpc_ich_finalize_gpio_cell(dev);
+ ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
+ &lpc_ich_gpio_cell, 1, NULL, 0, NULL);
+
+gpio_done:
+ if (acpi_conflict)
+ pr_warn("Resource conflict(s) found affecting %s\n",
+ lpc_ich_gpio_cell.name);
+ return ret;
+}
+
+static int lpc_ich_init_wdt(struct pci_dev *dev)
+{
+ struct lpc_ich_priv *priv = pci_get_drvdata(dev);
+ u32 base_addr_cfg;
+ u32 base_addr;
+ int ret;
+ struct resource *res;
+
+ /* Setup power management base register */
+ pci_read_config_dword(dev, priv->abase, &base_addr_cfg);
+ base_addr = base_addr_cfg & 0x0000ff80;
+ if (!base_addr) {
+ dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n");
+ ret = -ENODEV;
+ goto wdt_done;
+ }
+
+ res = wdt_io_res(ICH_RES_IO_TCO);
+ res->start = base_addr + ACPIBASE_TCO_OFF;
+ res->end = base_addr + ACPIBASE_TCO_END;
+
+ res = wdt_io_res(ICH_RES_IO_SMI);
+ res->start = base_addr + ACPIBASE_SMI_OFF;
+ res->end = base_addr + ACPIBASE_SMI_END;
+
+ lpc_ich_enable_acpi_space(dev);
+
+ /*
+ * iTCO v2:
+ * Get the Memory-Mapped GCS register. To get access to it
+ * we have to read RCBA from PCI Config space 0xf0 and use
+ * it as base. GCS = RCBA + ICH6_GCS(0x3410).
+ *
+ * iTCO v3:
+ * Get the Power Management Configuration register. To get access
+ * to it we have to read the PMC BASE from config space and address
+ * the register at offset 0x8.
+ */
+ if (lpc_chipset_info[priv->chipset].iTCO_version == 1) {
+ /* Don't register iomem for TCO ver 1 */
+ lpc_ich_wdt_cell.num_resources--;
+ } else if (lpc_chipset_info[priv->chipset].iTCO_version == 2) {
+ pci_read_config_dword(dev, RCBABASE, &base_addr_cfg);
+ base_addr = base_addr_cfg & 0xffffc000;
+ if (!(base_addr_cfg & 1)) {
+ dev_notice(&dev->dev, "RCBA is disabled by "
+ "hardware/BIOS, device disabled\n");
+ ret = -ENODEV;
+ goto wdt_done;
+ }
+ res = wdt_mem_res(ICH_RES_MEM_GCS_PMC);
+ res->start = base_addr + ACPIBASE_GCS_OFF;
+ res->end = base_addr + ACPIBASE_GCS_END;
+ } else if (lpc_chipset_info[priv->chipset].iTCO_version == 3) {
+ lpc_ich_enable_pmc_space(dev);
+ pci_read_config_dword(dev, ACPICTRL_PMCBASE, &base_addr_cfg);
+ base_addr = base_addr_cfg & 0xfffffe00;
+
+ res = wdt_mem_res(ICH_RES_MEM_GCS_PMC);
+ res->start = base_addr + ACPIBASE_PMC_OFF;
+ res->end = base_addr + ACPIBASE_PMC_END;
+ }
+
+ ret = lpc_ich_finalize_wdt_cell(dev);
+ if (ret)
+ goto wdt_done;
+
+ ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
+ &lpc_ich_wdt_cell, 1, NULL, 0, NULL);
+
+wdt_done:
+ return ret;
+}
+
+static int lpc_ich_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ struct lpc_ich_priv *priv;
+ int ret;
+ bool cell_added = false;
+
+ priv = devm_kzalloc(&dev->dev,
+ sizeof(struct lpc_ich_priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->chipset = id->driver_data;
+
+ priv->actrl_pbase_save = -1;
+ priv->abase_save = -1;
+
+ priv->abase = ACPIBASE;
+ priv->actrl_pbase = ACPICTRL_PMCBASE;
+
+ priv->gctrl_save = -1;
+ if (priv->chipset <= LPC_ICH5) {
+ priv->gbase = GPIOBASE_ICH0;
+ priv->gctrl = GPIOCTRL_ICH0;
+ } else {
+ priv->gbase = GPIOBASE_ICH6;
+ priv->gctrl = GPIOCTRL_ICH6;
+ }
+
+ pci_set_drvdata(dev, priv);
+
+ if (lpc_chipset_info[priv->chipset].iTCO_version) {
+ ret = lpc_ich_init_wdt(dev);
+ if (!ret)
+ cell_added = true;
+ }
+
+ if (lpc_chipset_info[priv->chipset].gpio_version) {
+ ret = lpc_ich_init_gpio(dev);
+ if (!ret)
+ cell_added = true;
+ }
+
+ /*
+ * We only care if at least one or none of the cells registered
+ * successfully.
+ */
+ if (!cell_added) {
+ dev_warn(&dev->dev, "No MFD cells added\n");
+ lpc_ich_restore_config_space(dev);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void lpc_ich_remove(struct pci_dev *dev)
+{
+ mfd_remove_devices(&dev->dev);
+ lpc_ich_restore_config_space(dev);
+}
+
+static struct pci_driver lpc_ich_driver = {
+ .name = "lpc_ich",
+ .id_table = lpc_ich_ids,
+ .probe = lpc_ich_probe,
+ .remove = lpc_ich_remove,
+};
+
+module_pci_driver(lpc_ich_driver);
+
+MODULE_AUTHOR("Aaron Sierra <asierra@...-inc.com>");
+MODULE_DESCRIPTION("LPC interface for Intel ICH");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
deleted file mode 100644
index bd3aa45..0000000
--- a/drivers/mfd/lpc_ich.c
+++ /dev/null
@@ -1,1126 +0,0 @@
-/*
- * lpc_ich.c - LPC interface for Intel ICH
- *
- * LPC bridge function of the Intel ICH contains many other
- * functional units, such as Interrupt controllers, Timers,
- * Power Management, System Management, GPIO, RTC, and LPC
- * Configuration Registers.
- *
- * This driver is derived from lpc_sch.
-
- * Copyright (c) 2011 Extreme Engineering Solution, Inc.
- * Author: Aaron Sierra <asierra@...-inc.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License 2 as published
- * by the Free Software Foundation.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * This driver supports the following I/O Controller hubs:
- * (See the intel documentation on http://developer.intel.com.)
- * document number 290655-003, 290677-014: 82801AA (ICH), 82801AB (ICHO)
- * document number 290687-002, 298242-027: 82801BA (ICH2)
- * document number 290733-003, 290739-013: 82801CA (ICH3-S)
- * document number 290716-001, 290718-007: 82801CAM (ICH3-M)
- * document number 290744-001, 290745-025: 82801DB (ICH4)
- * document number 252337-001, 252663-008: 82801DBM (ICH4-M)
- * document number 273599-001, 273645-002: 82801E (C-ICH)
- * document number 252516-001, 252517-028: 82801EB (ICH5), 82801ER (ICH5R)
- * document number 300641-004, 300884-013: 6300ESB
- * document number 301473-002, 301474-026: 82801F (ICH6)
- * document number 313082-001, 313075-006: 631xESB, 632xESB
- * document number 307013-003, 307014-024: 82801G (ICH7)
- * document number 322896-001, 322897-001: NM10
- * document number 313056-003, 313057-017: 82801H (ICH8)
- * document number 316972-004, 316973-012: 82801I (ICH9)
- * document number 319973-002, 319974-002: 82801J (ICH10)
- * document number 322169-001, 322170-003: 5 Series, 3400 Series (PCH)
- * document number 320066-003, 320257-008: EP80597 (IICH)
- * document number 324645-001, 324646-001: Cougar Point (CPT)
- * document number TBD : Patsburg (PBG)
- * document number TBD : DH89xxCC
- * document number TBD : Panther Point
- * document number TBD : Lynx Point
- * document number TBD : Lynx Point-LP
- * document number TBD : Wellsburg
- * document number TBD : Avoton SoC
- * document number TBD : Coleto Creek
- * document number TBD : Wildcat Point-LP
- * document number TBD : 9 Series
- * document number TBD : Lewisburg
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/acpi.h>
-#include <linux/pci.h>
-#include <linux/mfd/core.h>
-#include <linux/mfd/lpc_ich.h>
-#include <linux/platform_data/itco_wdt.h>
-
-#define ACPIBASE 0x40
-#define ACPIBASE_GPE_OFF 0x28
-#define ACPIBASE_GPE_END 0x2f
-#define ACPIBASE_SMI_OFF 0x30
-#define ACPIBASE_SMI_END 0x33
-#define ACPIBASE_PMC_OFF 0x08
-#define ACPIBASE_PMC_END 0x0c
-#define ACPIBASE_TCO_OFF 0x60
-#define ACPIBASE_TCO_END 0x7f
-#define ACPICTRL_PMCBASE 0x44
-
-#define ACPIBASE_GCS_OFF 0x3410
-#define ACPIBASE_GCS_END 0x3414
-
-#define GPIOBASE_ICH0 0x58
-#define GPIOCTRL_ICH0 0x5C
-#define GPIOBASE_ICH6 0x48
-#define GPIOCTRL_ICH6 0x4C
-
-#define RCBABASE 0xf0
-
-#define wdt_io_res(i) wdt_res(0, i)
-#define wdt_mem_res(i) wdt_res(ICH_RES_MEM_OFF, i)
-#define wdt_res(b, i) (&wdt_ich_res[(b) + (i)])
-
-struct lpc_ich_priv {
- int chipset;
-
- int abase; /* ACPI base */
- int actrl_pbase; /* ACPI control or PMC base */
- int gbase; /* GPIO base */
- int gctrl; /* GPIO control */
-
- int abase_save; /* Cached ACPI base value */
- int actrl_pbase_save; /* Cached ACPI control or PMC base value */
- int gctrl_save; /* Cached GPIO control value */
-};
-
-static struct resource wdt_ich_res[] = {
- /* ACPI - TCO */
- {
- .flags = IORESOURCE_IO,
- },
- /* ACPI - SMI */
- {
- .flags = IORESOURCE_IO,
- },
- /* GCS or PMC */
- {
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct resource gpio_ich_res[] = {
- /* GPIO */
- {
- .flags = IORESOURCE_IO,
- },
- /* ACPI - GPE0 */
- {
- .flags = IORESOURCE_IO,
- },
-};
-
-static struct mfd_cell lpc_ich_wdt_cell = {
- .name = "iTCO_wdt",
- .num_resources = ARRAY_SIZE(wdt_ich_res),
- .resources = wdt_ich_res,
- .ignore_resource_conflicts = true,
-};
-
-static struct mfd_cell lpc_ich_gpio_cell = {
- .name = "gpio_ich",
- .num_resources = ARRAY_SIZE(gpio_ich_res),
- .resources = gpio_ich_res,
- .ignore_resource_conflicts = true,
-};
-
-/* chipset related info */
-enum lpc_chipsets {
- LPC_ICH = 0, /* ICH */
- LPC_ICH0, /* ICH0 */
- LPC_ICH2, /* ICH2 */
- LPC_ICH2M, /* ICH2-M */
- LPC_ICH3, /* ICH3-S */
- LPC_ICH3M, /* ICH3-M */
- LPC_ICH4, /* ICH4 */
- LPC_ICH4M, /* ICH4-M */
- LPC_CICH, /* C-ICH */
- LPC_ICH5, /* ICH5 & ICH5R */
- LPC_6300ESB, /* 6300ESB */
- LPC_ICH6, /* ICH6 & ICH6R */
- LPC_ICH6M, /* ICH6-M */
- LPC_ICH6W, /* ICH6W & ICH6RW */
- LPC_631XESB, /* 631xESB/632xESB */
- LPC_ICH7, /* ICH7 & ICH7R */
- LPC_ICH7DH, /* ICH7DH */
- LPC_ICH7M, /* ICH7-M & ICH7-U */
- LPC_ICH7MDH, /* ICH7-M DH */
- LPC_NM10, /* NM10 */
- LPC_ICH8, /* ICH8 & ICH8R */
- LPC_ICH8DH, /* ICH8DH */
- LPC_ICH8DO, /* ICH8DO */
- LPC_ICH8M, /* ICH8M */
- LPC_ICH8ME, /* ICH8M-E */
- LPC_ICH9, /* ICH9 */
- LPC_ICH9R, /* ICH9R */
- LPC_ICH9DH, /* ICH9DH */
- LPC_ICH9DO, /* ICH9DO */
- LPC_ICH9M, /* ICH9M */
- LPC_ICH9ME, /* ICH9M-E */
- LPC_ICH10, /* ICH10 */
- LPC_ICH10R, /* ICH10R */
- LPC_ICH10D, /* ICH10D */
- LPC_ICH10DO, /* ICH10DO */
- LPC_PCH, /* PCH Desktop Full Featured */
- LPC_PCHM, /* PCH Mobile Full Featured */
- LPC_P55, /* P55 */
- LPC_PM55, /* PM55 */
- LPC_H55, /* H55 */
- LPC_QM57, /* QM57 */
- LPC_H57, /* H57 */
- LPC_HM55, /* HM55 */
- LPC_Q57, /* Q57 */
- LPC_HM57, /* HM57 */
- LPC_PCHMSFF, /* PCH Mobile SFF Full Featured */
- LPC_QS57, /* QS57 */
- LPC_3400, /* 3400 */
- LPC_3420, /* 3420 */
- LPC_3450, /* 3450 */
- LPC_EP80579, /* EP80579 */
- LPC_CPT, /* Cougar Point */
- LPC_CPTD, /* Cougar Point Desktop */
- LPC_CPTM, /* Cougar Point Mobile */
- LPC_PBG, /* Patsburg */
- LPC_DH89XXCC, /* DH89xxCC */
- LPC_PPT, /* Panther Point */
- LPC_LPT, /* Lynx Point */
- LPC_LPT_LP, /* Lynx Point-LP */
- LPC_WBG, /* Wellsburg */
- LPC_AVN, /* Avoton SoC */
- LPC_BAYTRAIL, /* Bay Trail SoC */
- LPC_COLETO, /* Coleto Creek */
- LPC_WPT_LP, /* Wildcat Point-LP */
- LPC_BRASWELL, /* Braswell SoC */
- LPC_LEWISBURG, /* Lewisburg */
- LPC_9S, /* 9 Series */
-};
-
-static struct lpc_ich_info lpc_chipset_info[] = {
- [LPC_ICH] = {
- .name = "ICH",
- .iTCO_version = 1,
- },
- [LPC_ICH0] = {
- .name = "ICH0",
- .iTCO_version = 1,
- },
- [LPC_ICH2] = {
- .name = "ICH2",
- .iTCO_version = 1,
- },
- [LPC_ICH2M] = {
- .name = "ICH2-M",
- .iTCO_version = 1,
- },
- [LPC_ICH3] = {
- .name = "ICH3-S",
- .iTCO_version = 1,
- },
- [LPC_ICH3M] = {
- .name = "ICH3-M",
- .iTCO_version = 1,
- },
- [LPC_ICH4] = {
- .name = "ICH4",
- .iTCO_version = 1,
- },
- [LPC_ICH4M] = {
- .name = "ICH4-M",
- .iTCO_version = 1,
- },
- [LPC_CICH] = {
- .name = "C-ICH",
- .iTCO_version = 1,
- },
- [LPC_ICH5] = {
- .name = "ICH5 or ICH5R",
- .iTCO_version = 1,
- },
- [LPC_6300ESB] = {
- .name = "6300ESB",
- .iTCO_version = 1,
- },
- [LPC_ICH6] = {
- .name = "ICH6 or ICH6R",
- .iTCO_version = 2,
- .gpio_version = ICH_V6_GPIO,
- },
- [LPC_ICH6M] = {
- .name = "ICH6-M",
- .iTCO_version = 2,
- .gpio_version = ICH_V6_GPIO,
- },
- [LPC_ICH6W] = {
- .name = "ICH6W or ICH6RW",
- .iTCO_version = 2,
- .gpio_version = ICH_V6_GPIO,
- },
- [LPC_631XESB] = {
- .name = "631xESB/632xESB",
- .iTCO_version = 2,
- .gpio_version = ICH_V6_GPIO,
- },
- [LPC_ICH7] = {
- .name = "ICH7 or ICH7R",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_ICH7DH] = {
- .name = "ICH7DH",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_ICH7M] = {
- .name = "ICH7-M or ICH7-U",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_ICH7MDH] = {
- .name = "ICH7-M DH",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_NM10] = {
- .name = "NM10",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_ICH8] = {
- .name = "ICH8 or ICH8R",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_ICH8DH] = {
- .name = "ICH8DH",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_ICH8DO] = {
- .name = "ICH8DO",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_ICH8M] = {
- .name = "ICH8M",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_ICH8ME] = {
- .name = "ICH8M-E",
- .iTCO_version = 2,
- .gpio_version = ICH_V7_GPIO,
- },
- [LPC_ICH9] = {
- .name = "ICH9",
- .iTCO_version = 2,
- .gpio_version = ICH_V9_GPIO,
- },
- [LPC_ICH9R] = {
- .name = "ICH9R",
- .iTCO_version = 2,
- .gpio_version = ICH_V9_GPIO,
- },
- [LPC_ICH9DH] = {
- .name = "ICH9DH",
- .iTCO_version = 2,
- .gpio_version = ICH_V9_GPIO,
- },
- [LPC_ICH9DO] = {
- .name = "ICH9DO",
- .iTCO_version = 2,
- .gpio_version = ICH_V9_GPIO,
- },
- [LPC_ICH9M] = {
- .name = "ICH9M",
- .iTCO_version = 2,
- .gpio_version = ICH_V9_GPIO,
- },
- [LPC_ICH9ME] = {
- .name = "ICH9M-E",
- .iTCO_version = 2,
- .gpio_version = ICH_V9_GPIO,
- },
- [LPC_ICH10] = {
- .name = "ICH10",
- .iTCO_version = 2,
- .gpio_version = ICH_V10CONS_GPIO,
- },
- [LPC_ICH10R] = {
- .name = "ICH10R",
- .iTCO_version = 2,
- .gpio_version = ICH_V10CONS_GPIO,
- },
- [LPC_ICH10D] = {
- .name = "ICH10D",
- .iTCO_version = 2,
- .gpio_version = ICH_V10CORP_GPIO,
- },
- [LPC_ICH10DO] = {
- .name = "ICH10DO",
- .iTCO_version = 2,
- .gpio_version = ICH_V10CORP_GPIO,
- },
- [LPC_PCH] = {
- .name = "PCH Desktop Full Featured",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_PCHM] = {
- .name = "PCH Mobile Full Featured",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_P55] = {
- .name = "P55",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_PM55] = {
- .name = "PM55",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_H55] = {
- .name = "H55",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_QM57] = {
- .name = "QM57",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_H57] = {
- .name = "H57",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_HM55] = {
- .name = "HM55",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_Q57] = {
- .name = "Q57",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_HM57] = {
- .name = "HM57",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_PCHMSFF] = {
- .name = "PCH Mobile SFF Full Featured",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_QS57] = {
- .name = "QS57",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_3400] = {
- .name = "3400",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_3420] = {
- .name = "3420",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_3450] = {
- .name = "3450",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_EP80579] = {
- .name = "EP80579",
- .iTCO_version = 2,
- },
- [LPC_CPT] = {
- .name = "Cougar Point",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_CPTD] = {
- .name = "Cougar Point Desktop",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_CPTM] = {
- .name = "Cougar Point Mobile",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_PBG] = {
- .name = "Patsburg",
- .iTCO_version = 2,
- },
- [LPC_DH89XXCC] = {
- .name = "DH89xxCC",
- .iTCO_version = 2,
- },
- [LPC_PPT] = {
- .name = "Panther Point",
- .iTCO_version = 2,
- .gpio_version = ICH_V5_GPIO,
- },
- [LPC_LPT] = {
- .name = "Lynx Point",
- .iTCO_version = 2,
- },
- [LPC_LPT_LP] = {
- .name = "Lynx Point_LP",
- .iTCO_version = 2,
- },
- [LPC_WBG] = {
- .name = "Wellsburg",
- .iTCO_version = 2,
- },
- [LPC_AVN] = {
- .name = "Avoton SoC",
- .iTCO_version = 3,
- .gpio_version = AVOTON_GPIO,
- },
- [LPC_BAYTRAIL] = {
- .name = "Bay Trail SoC",
- .iTCO_version = 3,
- },
- [LPC_COLETO] = {
- .name = "Coleto Creek",
- .iTCO_version = 2,
- },
- [LPC_WPT_LP] = {
- .name = "Wildcat Point_LP",
- .iTCO_version = 2,
- },
- [LPC_BRASWELL] = {
- .name = "Braswell SoC",
- .iTCO_version = 3,
- },
- [LPC_LEWISBURG] = {
- .name = "Lewisburg",
- .iTCO_version = 2,
- },
- [LPC_9S] = {
- .name = "9 Series",
- .iTCO_version = 2,
- },
-};
-
-/*
- * This data only exists for exporting the supported PCI ids
- * via MODULE_DEVICE_TABLE. We do not actually register a
- * pci_driver, because the I/O Controller Hub has also other
- * functions that probably will be registered by other drivers.
- */
-static const struct pci_device_id lpc_ich_ids[] = {
- { PCI_VDEVICE(INTEL, 0x0f1c), LPC_BAYTRAIL},
- { PCI_VDEVICE(INTEL, 0x1c41), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c42), LPC_CPTD},
- { PCI_VDEVICE(INTEL, 0x1c43), LPC_CPTM},
- { PCI_VDEVICE(INTEL, 0x1c44), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c45), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c46), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c47), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c48), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c49), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4a), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4b), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4c), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4d), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4e), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c4f), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c50), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c51), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c52), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c53), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c54), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c55), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c56), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c57), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c58), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c59), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5a), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5b), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5c), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5d), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5e), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1c5f), LPC_CPT},
- { PCI_VDEVICE(INTEL, 0x1d40), LPC_PBG},
- { PCI_VDEVICE(INTEL, 0x1d41), LPC_PBG},
- { PCI_VDEVICE(INTEL, 0x1e40), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e41), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e42), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e43), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e44), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e45), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e46), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e47), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e48), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e49), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4a), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4b), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4c), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4d), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4e), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e4f), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e50), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e51), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e52), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e53), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e54), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e55), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e56), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e57), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e58), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e59), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5a), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5b), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5c), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5d), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5e), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1e5f), LPC_PPT},
- { PCI_VDEVICE(INTEL, 0x1f38), LPC_AVN},
- { PCI_VDEVICE(INTEL, 0x1f39), LPC_AVN},
- { PCI_VDEVICE(INTEL, 0x1f3a), LPC_AVN},
- { PCI_VDEVICE(INTEL, 0x1f3b), LPC_AVN},
- { PCI_VDEVICE(INTEL, 0x229c), LPC_BRASWELL},
- { PCI_VDEVICE(INTEL, 0x2310), LPC_DH89XXCC},
- { PCI_VDEVICE(INTEL, 0x2390), LPC_COLETO},
- { PCI_VDEVICE(INTEL, 0x2410), LPC_ICH},
- { PCI_VDEVICE(INTEL, 0x2420), LPC_ICH0},
- { PCI_VDEVICE(INTEL, 0x2440), LPC_ICH2},
- { PCI_VDEVICE(INTEL, 0x244c), LPC_ICH2M},
- { PCI_VDEVICE(INTEL, 0x2450), LPC_CICH},
- { PCI_VDEVICE(INTEL, 0x2480), LPC_ICH3},
- { PCI_VDEVICE(INTEL, 0x248c), LPC_ICH3M},
- { PCI_VDEVICE(INTEL, 0x24c0), LPC_ICH4},
- { PCI_VDEVICE(INTEL, 0x24cc), LPC_ICH4M},
- { PCI_VDEVICE(INTEL, 0x24d0), LPC_ICH5},
- { PCI_VDEVICE(INTEL, 0x25a1), LPC_6300ESB},
- { PCI_VDEVICE(INTEL, 0x2640), LPC_ICH6},
- { PCI_VDEVICE(INTEL, 0x2641), LPC_ICH6M},
- { PCI_VDEVICE(INTEL, 0x2642), LPC_ICH6W},
- { PCI_VDEVICE(INTEL, 0x2670), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x2671), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x2672), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x2673), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x2674), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x2675), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x2676), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x2677), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x2678), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x2679), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x267a), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x267b), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x267c), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x267d), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x267e), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x267f), LPC_631XESB},
- { PCI_VDEVICE(INTEL, 0x27b0), LPC_ICH7DH},
- { PCI_VDEVICE(INTEL, 0x27b8), LPC_ICH7},
- { PCI_VDEVICE(INTEL, 0x27b9), LPC_ICH7M},
- { PCI_VDEVICE(INTEL, 0x27bc), LPC_NM10},
- { PCI_VDEVICE(INTEL, 0x27bd), LPC_ICH7MDH},
- { PCI_VDEVICE(INTEL, 0x2810), LPC_ICH8},
- { PCI_VDEVICE(INTEL, 0x2811), LPC_ICH8ME},
- { PCI_VDEVICE(INTEL, 0x2812), LPC_ICH8DH},
- { PCI_VDEVICE(INTEL, 0x2814), LPC_ICH8DO},
- { PCI_VDEVICE(INTEL, 0x2815), LPC_ICH8M},
- { PCI_VDEVICE(INTEL, 0x2912), LPC_ICH9DH},
- { PCI_VDEVICE(INTEL, 0x2914), LPC_ICH9DO},
- { PCI_VDEVICE(INTEL, 0x2916), LPC_ICH9R},
- { PCI_VDEVICE(INTEL, 0x2917), LPC_ICH9ME},
- { PCI_VDEVICE(INTEL, 0x2918), LPC_ICH9},
- { PCI_VDEVICE(INTEL, 0x2919), LPC_ICH9M},
- { PCI_VDEVICE(INTEL, 0x3a14), LPC_ICH10DO},
- { PCI_VDEVICE(INTEL, 0x3a16), LPC_ICH10R},
- { PCI_VDEVICE(INTEL, 0x3a18), LPC_ICH10},
- { PCI_VDEVICE(INTEL, 0x3a1a), LPC_ICH10D},
- { PCI_VDEVICE(INTEL, 0x3b00), LPC_PCH},
- { PCI_VDEVICE(INTEL, 0x3b01), LPC_PCHM},
- { PCI_VDEVICE(INTEL, 0x3b02), LPC_P55},
- { PCI_VDEVICE(INTEL, 0x3b03), LPC_PM55},
- { PCI_VDEVICE(INTEL, 0x3b06), LPC_H55},
- { PCI_VDEVICE(INTEL, 0x3b07), LPC_QM57},
- { PCI_VDEVICE(INTEL, 0x3b08), LPC_H57},
- { PCI_VDEVICE(INTEL, 0x3b09), LPC_HM55},
- { PCI_VDEVICE(INTEL, 0x3b0a), LPC_Q57},
- { PCI_VDEVICE(INTEL, 0x3b0b), LPC_HM57},
- { PCI_VDEVICE(INTEL, 0x3b0d), LPC_PCHMSFF},
- { PCI_VDEVICE(INTEL, 0x3b0f), LPC_QS57},
- { PCI_VDEVICE(INTEL, 0x3b12), LPC_3400},
- { PCI_VDEVICE(INTEL, 0x3b14), LPC_3420},
- { PCI_VDEVICE(INTEL, 0x3b16), LPC_3450},
- { PCI_VDEVICE(INTEL, 0x5031), LPC_EP80579},
- { PCI_VDEVICE(INTEL, 0x8c40), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c41), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c42), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c43), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c44), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c45), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c46), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c47), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c48), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c49), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4a), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4b), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4c), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4d), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4e), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c4f), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c50), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c51), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c52), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c53), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c54), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c55), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c56), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c57), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c58), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c59), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5a), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5b), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5c), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5d), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5e), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8c5f), LPC_LPT},
- { PCI_VDEVICE(INTEL, 0x8cc1), LPC_9S},
- { PCI_VDEVICE(INTEL, 0x8cc2), LPC_9S},
- { PCI_VDEVICE(INTEL, 0x8cc3), LPC_9S},
- { PCI_VDEVICE(INTEL, 0x8cc4), LPC_9S},
- { PCI_VDEVICE(INTEL, 0x8cc6), LPC_9S},
- { PCI_VDEVICE(INTEL, 0x8d40), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d41), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d42), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d43), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d44), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d45), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d46), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d47), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d48), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d49), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d4a), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d4b), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d4c), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d4d), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d4e), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d4f), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d50), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d51), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d52), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d53), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d54), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d55), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d56), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d57), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d58), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d59), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d5a), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d5b), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d5c), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d5d), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d5e), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x8d5f), LPC_WBG},
- { PCI_VDEVICE(INTEL, 0x9c40), LPC_LPT_LP},
- { PCI_VDEVICE(INTEL, 0x9c41), LPC_LPT_LP},
- { PCI_VDEVICE(INTEL, 0x9c42), LPC_LPT_LP},
- { PCI_VDEVICE(INTEL, 0x9c43), LPC_LPT_LP},
- { PCI_VDEVICE(INTEL, 0x9c44), LPC_LPT_LP},
- { PCI_VDEVICE(INTEL, 0x9c45), LPC_LPT_LP},
- { PCI_VDEVICE(INTEL, 0x9c46), LPC_LPT_LP},
- { PCI_VDEVICE(INTEL, 0x9c47), LPC_LPT_LP},
- { PCI_VDEVICE(INTEL, 0x9cc1), LPC_WPT_LP},
- { PCI_VDEVICE(INTEL, 0x9cc2), LPC_WPT_LP},
- { PCI_VDEVICE(INTEL, 0x9cc3), LPC_WPT_LP},
- { PCI_VDEVICE(INTEL, 0x9cc5), LPC_WPT_LP},
- { PCI_VDEVICE(INTEL, 0x9cc6), LPC_WPT_LP},
- { PCI_VDEVICE(INTEL, 0x9cc7), LPC_WPT_LP},
- { PCI_VDEVICE(INTEL, 0x9cc9), LPC_WPT_LP},
- { PCI_VDEVICE(INTEL, 0xa1c1), LPC_LEWISBURG},
- { PCI_VDEVICE(INTEL, 0xa1c2), LPC_LEWISBURG},
- { PCI_VDEVICE(INTEL, 0xa1c3), LPC_LEWISBURG},
- { PCI_VDEVICE(INTEL, 0xa1c4), LPC_LEWISBURG},
- { PCI_VDEVICE(INTEL, 0xa1c5), LPC_LEWISBURG},
- { PCI_VDEVICE(INTEL, 0xa1c6), LPC_LEWISBURG},
- { PCI_VDEVICE(INTEL, 0xa1c7), LPC_LEWISBURG},
- { PCI_VDEVICE(INTEL, 0xa242), LPC_LEWISBURG},
- { PCI_VDEVICE(INTEL, 0xa243), LPC_LEWISBURG},
- { 0, }, /* End of list */
-};
-MODULE_DEVICE_TABLE(pci, lpc_ich_ids);
-
-static void lpc_ich_restore_config_space(struct pci_dev *dev)
-{
- struct lpc_ich_priv *priv = pci_get_drvdata(dev);
-
- if (priv->abase_save >= 0) {
- pci_write_config_byte(dev, priv->abase, priv->abase_save);
- priv->abase_save = -1;
- }
-
- if (priv->actrl_pbase_save >= 0) {
- pci_write_config_byte(dev, priv->actrl_pbase,
- priv->actrl_pbase_save);
- priv->actrl_pbase_save = -1;
- }
-
- if (priv->gctrl_save >= 0) {
- pci_write_config_byte(dev, priv->gctrl, priv->gctrl_save);
- priv->gctrl_save = -1;
- }
-}
-
-static void lpc_ich_enable_acpi_space(struct pci_dev *dev)
-{
- struct lpc_ich_priv *priv = pci_get_drvdata(dev);
- u8 reg_save;
-
- switch (lpc_chipset_info[priv->chipset].iTCO_version) {
- case 3:
- /*
- * Some chipsets (eg Avoton) enable the ACPI space in the
- * ACPI BASE register.
- */
- pci_read_config_byte(dev, priv->abase, ®_save);
- pci_write_config_byte(dev, priv->abase, reg_save | 0x2);
- priv->abase_save = reg_save;
- break;
- default:
- /*
- * Most chipsets enable the ACPI space in the ACPI control
- * register.
- */
- pci_read_config_byte(dev, priv->actrl_pbase, ®_save);
- pci_write_config_byte(dev, priv->actrl_pbase, reg_save | 0x80);
- priv->actrl_pbase_save = reg_save;
- break;
- }
-}
-
-static void lpc_ich_enable_gpio_space(struct pci_dev *dev)
-{
- struct lpc_ich_priv *priv = pci_get_drvdata(dev);
- u8 reg_save;
-
- pci_read_config_byte(dev, priv->gctrl, ®_save);
- pci_write_config_byte(dev, priv->gctrl, reg_save | 0x10);
- priv->gctrl_save = reg_save;
-}
-
-static void lpc_ich_enable_pmc_space(struct pci_dev *dev)
-{
- struct lpc_ich_priv *priv = pci_get_drvdata(dev);
- u8 reg_save;
-
- pci_read_config_byte(dev, priv->actrl_pbase, ®_save);
- pci_write_config_byte(dev, priv->actrl_pbase, reg_save | 0x2);
-
- priv->actrl_pbase_save = reg_save;
-}
-
-static int lpc_ich_finalize_wdt_cell(struct pci_dev *dev)
-{
- struct itco_wdt_platform_data *pdata;
- struct lpc_ich_priv *priv = pci_get_drvdata(dev);
- struct lpc_ich_info *info;
- struct mfd_cell *cell = &lpc_ich_wdt_cell;
-
- pdata = devm_kzalloc(&dev->dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata)
- return -ENOMEM;
-
- info = &lpc_chipset_info[priv->chipset];
-
- pdata->version = info->iTCO_version;
- strlcpy(pdata->name, info->name, sizeof(pdata->name));
-
- cell->platform_data = pdata;
- cell->pdata_size = sizeof(*pdata);
- return 0;
-}
-
-static void lpc_ich_finalize_gpio_cell(struct pci_dev *dev)
-{
- struct lpc_ich_priv *priv = pci_get_drvdata(dev);
- struct mfd_cell *cell = &lpc_ich_gpio_cell;
-
- cell->platform_data = &lpc_chipset_info[priv->chipset];
- cell->pdata_size = sizeof(struct lpc_ich_info);
-}
-
-/*
- * We don't check for resource conflict globally. There are 2 or 3 independent
- * GPIO groups and it's enough to have access to one of these to instantiate
- * the device.
- */
-static int lpc_ich_check_conflict_gpio(struct resource *res)
-{
- int ret;
- u8 use_gpio = 0;
-
- if (resource_size(res) >= 0x50 &&
- !acpi_check_region(res->start + 0x40, 0x10, "LPC ICH GPIO3"))
- use_gpio |= 1 << 2;
-
- if (!acpi_check_region(res->start + 0x30, 0x10, "LPC ICH GPIO2"))
- use_gpio |= 1 << 1;
-
- ret = acpi_check_region(res->start + 0x00, 0x30, "LPC ICH GPIO1");
- if (!ret)
- use_gpio |= 1 << 0;
-
- return use_gpio ? use_gpio : ret;
-}
-
-static int lpc_ich_init_gpio(struct pci_dev *dev)
-{
- struct lpc_ich_priv *priv = pci_get_drvdata(dev);
- u32 base_addr_cfg;
- u32 base_addr;
- int ret;
- bool acpi_conflict = false;
- struct resource *res;
-
- /* Setup power management base register */
- pci_read_config_dword(dev, priv->abase, &base_addr_cfg);
- base_addr = base_addr_cfg & 0x0000ff80;
- if (!base_addr) {
- dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n");
- lpc_ich_gpio_cell.num_resources--;
- goto gpe0_done;
- }
-
- res = &gpio_ich_res[ICH_RES_GPE0];
- res->start = base_addr + ACPIBASE_GPE_OFF;
- res->end = base_addr + ACPIBASE_GPE_END;
- ret = acpi_check_resource_conflict(res);
- if (ret) {
- /*
- * This isn't fatal for the GPIO, but we have to make sure that
- * the platform_device subsystem doesn't see this resource
- * or it will register an invalid region.
- */
- lpc_ich_gpio_cell.num_resources--;
- acpi_conflict = true;
- } else {
- lpc_ich_enable_acpi_space(dev);
- }
-
-gpe0_done:
- /* Setup GPIO base register */
- pci_read_config_dword(dev, priv->gbase, &base_addr_cfg);
- base_addr = base_addr_cfg & 0x0000ff80;
- if (!base_addr) {
- dev_notice(&dev->dev, "I/O space for GPIO uninitialized\n");
- ret = -ENODEV;
- goto gpio_done;
- }
-
- /* Older devices provide fewer GPIO and have a smaller resource size. */
- res = &gpio_ich_res[ICH_RES_GPIO];
- res->start = base_addr;
- switch (lpc_chipset_info[priv->chipset].gpio_version) {
- case ICH_V5_GPIO:
- case ICH_V10CORP_GPIO:
- res->end = res->start + 128 - 1;
- break;
- default:
- res->end = res->start + 64 - 1;
- break;
- }
-
- ret = lpc_ich_check_conflict_gpio(res);
- if (ret < 0) {
- /* this isn't necessarily fatal for the GPIO */
- acpi_conflict = true;
- goto gpio_done;
- }
- lpc_chipset_info[priv->chipset].use_gpio = ret;
- lpc_ich_enable_gpio_space(dev);
-
- lpc_ich_finalize_gpio_cell(dev);
- ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
- &lpc_ich_gpio_cell, 1, NULL, 0, NULL);
-
-gpio_done:
- if (acpi_conflict)
- pr_warn("Resource conflict(s) found affecting %s\n",
- lpc_ich_gpio_cell.name);
- return ret;
-}
-
-static int lpc_ich_init_wdt(struct pci_dev *dev)
-{
- struct lpc_ich_priv *priv = pci_get_drvdata(dev);
- u32 base_addr_cfg;
- u32 base_addr;
- int ret;
- struct resource *res;
-
- /* Setup power management base register */
- pci_read_config_dword(dev, priv->abase, &base_addr_cfg);
- base_addr = base_addr_cfg & 0x0000ff80;
- if (!base_addr) {
- dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n");
- ret = -ENODEV;
- goto wdt_done;
- }
-
- res = wdt_io_res(ICH_RES_IO_TCO);
- res->start = base_addr + ACPIBASE_TCO_OFF;
- res->end = base_addr + ACPIBASE_TCO_END;
-
- res = wdt_io_res(ICH_RES_IO_SMI);
- res->start = base_addr + ACPIBASE_SMI_OFF;
- res->end = base_addr + ACPIBASE_SMI_END;
-
- lpc_ich_enable_acpi_space(dev);
-
- /*
- * iTCO v2:
- * Get the Memory-Mapped GCS register. To get access to it
- * we have to read RCBA from PCI Config space 0xf0 and use
- * it as base. GCS = RCBA + ICH6_GCS(0x3410).
- *
- * iTCO v3:
- * Get the Power Management Configuration register. To get access
- * to it we have to read the PMC BASE from config space and address
- * the register at offset 0x8.
- */
- if (lpc_chipset_info[priv->chipset].iTCO_version == 1) {
- /* Don't register iomem for TCO ver 1 */
- lpc_ich_wdt_cell.num_resources--;
- } else if (lpc_chipset_info[priv->chipset].iTCO_version == 2) {
- pci_read_config_dword(dev, RCBABASE, &base_addr_cfg);
- base_addr = base_addr_cfg & 0xffffc000;
- if (!(base_addr_cfg & 1)) {
- dev_notice(&dev->dev, "RCBA is disabled by "
- "hardware/BIOS, device disabled\n");
- ret = -ENODEV;
- goto wdt_done;
- }
- res = wdt_mem_res(ICH_RES_MEM_GCS_PMC);
- res->start = base_addr + ACPIBASE_GCS_OFF;
- res->end = base_addr + ACPIBASE_GCS_END;
- } else if (lpc_chipset_info[priv->chipset].iTCO_version == 3) {
- lpc_ich_enable_pmc_space(dev);
- pci_read_config_dword(dev, ACPICTRL_PMCBASE, &base_addr_cfg);
- base_addr = base_addr_cfg & 0xfffffe00;
-
- res = wdt_mem_res(ICH_RES_MEM_GCS_PMC);
- res->start = base_addr + ACPIBASE_PMC_OFF;
- res->end = base_addr + ACPIBASE_PMC_END;
- }
-
- ret = lpc_ich_finalize_wdt_cell(dev);
- if (ret)
- goto wdt_done;
-
- ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
- &lpc_ich_wdt_cell, 1, NULL, 0, NULL);
-
-wdt_done:
- return ret;
-}
-
-static int lpc_ich_probe(struct pci_dev *dev,
- const struct pci_device_id *id)
-{
- struct lpc_ich_priv *priv;
- int ret;
- bool cell_added = false;
-
- priv = devm_kzalloc(&dev->dev,
- sizeof(struct lpc_ich_priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- priv->chipset = id->driver_data;
-
- priv->actrl_pbase_save = -1;
- priv->abase_save = -1;
-
- priv->abase = ACPIBASE;
- priv->actrl_pbase = ACPICTRL_PMCBASE;
-
- priv->gctrl_save = -1;
- if (priv->chipset <= LPC_ICH5) {
- priv->gbase = GPIOBASE_ICH0;
- priv->gctrl = GPIOCTRL_ICH0;
- } else {
- priv->gbase = GPIOBASE_ICH6;
- priv->gctrl = GPIOCTRL_ICH6;
- }
-
- pci_set_drvdata(dev, priv);
-
- if (lpc_chipset_info[priv->chipset].iTCO_version) {
- ret = lpc_ich_init_wdt(dev);
- if (!ret)
- cell_added = true;
- }
-
- if (lpc_chipset_info[priv->chipset].gpio_version) {
- ret = lpc_ich_init_gpio(dev);
- if (!ret)
- cell_added = true;
- }
-
- /*
- * We only care if at least one or none of the cells registered
- * successfully.
- */
- if (!cell_added) {
- dev_warn(&dev->dev, "No MFD cells added\n");
- lpc_ich_restore_config_space(dev);
- return -ENODEV;
- }
-
- return 0;
-}
-
-static void lpc_ich_remove(struct pci_dev *dev)
-{
- mfd_remove_devices(&dev->dev);
- lpc_ich_restore_config_space(dev);
-}
-
-static struct pci_driver lpc_ich_driver = {
- .name = "lpc_ich",
- .id_table = lpc_ich_ids,
- .probe = lpc_ich_probe,
- .remove = lpc_ich_remove,
-};
-
-module_pci_driver(lpc_ich_driver);
-
-MODULE_AUTHOR("Aaron Sierra <asierra@...-inc.com>");
-MODULE_DESCRIPTION("LPC interface for Intel ICH");
-MODULE_LICENSE("GPL");
--
1.9.1
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