Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933651Ab2BBXwY (ORCPT ); Thu, 2 Feb 2012 18:52:24 -0500 Received: from xes-mad.com ([216.165.139.218]:47157 "EHLO xes-mad.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757736Ab2BBXv5 (ORCPT ); Thu, 2 Feb 2012 18:51:57 -0500 X-Greylist: delayed 1584 seconds by postgrey-1.27 at vger.kernel.org; Thu, 02 Feb 2012 18:51:54 EST Date: Thu, 02 Feb 2012 17:25:14 -0600 (CST) From: Aaron Sierra To: guenter roeck Cc: Jean Delvare , Grant Likely , LKML , Peter Tyser Subject: [PATCH 1/3] mfd: Add LPC driver for Intel ICH chipsets Message-ID: <484bd1ed-f456-40b5-b5c2-c0e50f2787d5@zimbra> In-Reply-To: <1328220172.2261.162.camel@groeck-laptop> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Originating-IP: [10.52.0.65] X-Mailer: Zimbra 7.1.3_GA_3346 (ZimbraWebClient - GC15 (Linux)/7.1.3_GA_3346) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 20436 Lines: 630 This driver currently creates resources for use by a forthcoming ICH chipset GPIO driver. It could be expanded to created the resources for converting the esb2rom (mtd) and iTCO_wdt (wdt), and potentially more, drivers to use the mfd model. Signed-off-by: Aaron Sierra --- drivers/mfd/Kconfig | 9 + drivers/mfd/Makefile | 1 + drivers/mfd/lpc_ich.c | 531 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/lpc_ich.h | 33 +++ 4 files changed, 574 insertions(+), 0 deletions(-) create mode 100644 drivers/mfd/lpc_ich.c create mode 100644 include/linux/mfd/lpc_ich.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 6ca938a..18eca82 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -636,6 +636,15 @@ config LPC_SCH LPC bridge function of the Intel SCH provides support for System Management Bus and General Purpose I/O. +config LPC_ICH + tristate "Intel ICH LPC" + depends on PCI + select MFD_CORE + help + The LPC bridge function of the Intel ICH provides support for + many functional units. This driver provides needed support for + other drivers to control these functions, currently GPIO. + config MFD_RDC321X tristate "Support for RDC-R321x southbridge" select MFD_CORE diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index d7d47d2..d479882 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -83,6 +83,7 @@ obj-$(CONFIG_MFD_DB5500_PRCMU) += db5500-prcmu.o obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o obj-$(CONFIG_PMIC_ADP5520) += adp5520.o obj-$(CONFIG_LPC_SCH) += lpc_sch.o +obj-$(CONFIG_LPC_ICH) += lpc_ich.o obj-$(CONFIG_MFD_RDC321X) += rdc321x-southbridge.o obj-$(CONFIG_MFD_JANZ_CMODIO) += janz-cmodio.o obj-$(CONFIG_MFD_JZ4740_ADC) += jz4740-adc.o diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c new file mode 100644 index 0000000..a288c74 --- /dev/null +++ b/drivers/mfd/lpc_ich.c @@ -0,0 +1,531 @@ +/* + * 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 + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* Convenient wrapper to make our PCI ID table */ +#define ICHX_PDEV(dev, idx) \ + .vendor = PCI_VENDOR_ID_INTEL, \ + .device = dev, \ + .subvendor = PCI_ANY_ID, \ + .subdevice = PCI_ANY_ID, \ + .class = 0, \ + .class_mask = 0, \ + .driver_data = idx + +#define ACPIBASE 0x40 +#define ACPIBASE_GPE_OFF 0x20 +#define ACPIBASE_GPE_END 0x2f +#define ACPICTRL 0x44 + +#define GPIOBASE 0x48 +#define GPIOCTRL 0x4C +#define GPIOBASE_IO_SIZE 0x80 + +static u8 lpc_ich_acpi_save, lpc_ich_gpio_save; + +static struct resource gpio_ich_res[] = { + /* BASE */ + { + .flags = IORESOURCE_IO, + }, + /* ACPI */ + { + .flags = IORESOURCE_IO, + }, +}; + +static struct mfd_cell lpc_ich_cells[] = { + { + .name = "ich_gpio", + .num_resources = ARRAY_SIZE(gpio_ich_res), + .resources = gpio_ich_res, + }, +}; + +/* TCO 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_CPT1, /* Cougar Point */ + LPC_CPT2, /* Cougar Point Desktop */ + LPC_CPT3, /* Cougar Point Mobile */ + LPC_CPT4, /* Cougar Point */ + LPC_CPT5, /* Cougar Point */ + LPC_CPT6, /* Cougar Point */ + LPC_CPT7, /* Cougar Point */ + LPC_CPT8, /* Cougar Point */ + LPC_CPT9, /* Cougar Point */ + LPC_CPT10, /* Cougar Point */ + LPC_CPT11, /* Cougar Point */ + LPC_CPT12, /* Cougar Point */ + LPC_CPT13, /* Cougar Point */ + LPC_CPT14, /* Cougar Point */ + LPC_CPT15, /* Cougar Point */ + LPC_CPT16, /* Cougar Point */ + LPC_CPT17, /* Cougar Point */ + LPC_CPT18, /* Cougar Point */ + LPC_CPT19, /* Cougar Point */ + LPC_CPT20, /* Cougar Point */ + LPC_CPT21, /* Cougar Point */ + LPC_CPT22, /* Cougar Point */ + LPC_CPT23, /* Cougar Point */ + LPC_CPT24, /* Cougar Point */ + LPC_CPT25, /* Cougar Point */ + LPC_CPT26, /* Cougar Point */ + LPC_CPT27, /* Cougar Point */ + LPC_CPT28, /* Cougar Point */ + LPC_CPT29, /* Cougar Point */ + LPC_CPT30, /* Cougar Point */ + LPC_CPT31, /* Cougar Point */ + LPC_PBG1, /* Patsburg */ + LPC_PBG2, /* Patsburg */ + LPC_DH89XXCC, /* DH89xxCC */ + LPC_PPT0, /* Panther Point */ + LPC_PPT1, /* Panther Point */ + LPC_PPT2, /* Panther Point */ + LPC_PPT3, /* Panther Point */ + LPC_PPT4, /* Panther Point */ + LPC_PPT5, /* Panther Point */ + LPC_PPT6, /* Panther Point */ + LPC_PPT7, /* Panther Point */ + LPC_PPT8, /* Panther Point */ + LPC_PPT9, /* Panther Point */ + LPC_PPT10, /* Panther Point */ + LPC_PPT11, /* Panther Point */ + LPC_PPT12, /* Panther Point */ + LPC_PPT13, /* Panther Point */ + LPC_PPT14, /* Panther Point */ + LPC_PPT15, /* Panther Point */ + LPC_PPT16, /* Panther Point */ + LPC_PPT17, /* Panther Point */ + LPC_PPT18, /* Panther Point */ + LPC_PPT19, /* Panther Point */ + LPC_PPT20, /* Panther Point */ + LPC_PPT21, /* Panther Point */ + LPC_PPT22, /* Panther Point */ + LPC_PPT23, /* Panther Point */ + LPC_PPT24, /* Panther Point */ + LPC_PPT25, /* Panther Point */ + LPC_PPT26, /* Panther Point */ + LPC_PPT27, /* Panther Point */ + LPC_PPT28, /* Panther Point */ + LPC_PPT29, /* Panther Point */ + LPC_PPT30, /* Panther Point */ + LPC_PPT31, /* Panther Point */ +}; + +struct lpc_ich_info lpc_chipset_info[] __devinitdata = { + {"ICH", 0}, + {"ICH0", 0}, + {"ICH2", 0}, + {"ICH2-M", 0}, + {"ICH3-S", 0}, + {"ICH3-M", 0}, + {"ICH4", 0}, + {"ICH4-M", 0}, + {"C-ICH", 0}, + {"ICH5 or ICH5R", 0}, + {"6300ESB", 0}, + {"ICH6 or ICH6R", 0x0601}, + {"ICH6-M", 0x0601}, + {"ICH6W or ICH6RW", 0x0601}, + {"631xESB/632xESB", 0x0601}, + {"ICH7 or ICH7R", 0x0701}, + {"ICH7DH", 0x0701}, + {"ICH7-M or ICH7-U", 0x0701}, + {"ICH7-M DH", 0x0701}, + {"NM10", 0}, + {"ICH8 or ICH8R", 0x0701}, + {"ICH8DH", 0x0701}, + {"ICH8DO", 0x0701}, + {"ICH8M", 0x0701}, + {"ICH8M-E", 0x0701}, + {"ICH9", 0x0801}, + {"ICH9R", 0x0801}, + {"ICH9DH", 0x0801}, + {"ICH9DO", 0x0801}, + {"ICH9M", 0x0801}, + {"ICH9M-E", 0x0801}, + {"ICH10", 0x0a11}, + {"ICH10R", 0x0a11}, + {"ICH10D", 0x0a01}, + {"ICH10DO", 0x0a01}, + {"PCH Desktop Full Featured", 0x0501}, + {"PCH Mobile Full Featured", 0x0501}, + {"P55", 0x0501}, + {"PM55", 0x0501}, + {"H55", 0x0501}, + {"QM57", 0x0501}, + {"H57", 0x0501}, + {"HM55", 0x0501}, + {"Q57", 0x0501}, + {"HM57", 0x0501}, + {"PCH Mobile SFF Full Featured", 0x0501}, + {"QS57", 0x0501}, + {"3400", 0x0501}, + {"3420", 0x0501}, + {"3450", 0x0501}, + {"EP80579", 0}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Cougar Point", 0x0501}, + {"Patsburg", 0}, + {"Patsburg", 0}, + {"DH89xxCC", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {"Panther Point", 0}, + {NULL, 0} +}; +EXPORT_SYMBOL(lpc_chipset_info); + +static DEFINE_PCI_DEVICE_TABLE(lpc_ich_ids) = { + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801AA_0, LPC_ICH)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801AB_0, LPC_ICH0)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801BA_0, LPC_ICH2)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801BA_10, LPC_ICH2M)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801CA_0, LPC_ICH3)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801CA_12, LPC_ICH3M)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801DB_0, LPC_ICH4)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801DB_12, LPC_ICH4M)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801E_0, LPC_CICH)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_82801EB_0, LPC_ICH5)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ESB_1, LPC_6300ESB)}, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH6_0, LPC_ICH6) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH6_1, LPC_ICH6M) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH6_2, LPC_ICH6W) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ESB2_0, LPC_631XESB) }, + { ICHX_PDEV(0x2671, LPC_631XESB) }, + { ICHX_PDEV(0x2672, LPC_631XESB) }, + { ICHX_PDEV(0x2673, LPC_631XESB) }, + { ICHX_PDEV(0x2674, LPC_631XESB) }, + { ICHX_PDEV(0x2675, LPC_631XESB) }, + { ICHX_PDEV(0x2676, LPC_631XESB) }, + { ICHX_PDEV(0x2677, LPC_631XESB) }, + { ICHX_PDEV(0x2678, LPC_631XESB) }, + { ICHX_PDEV(0x2679, LPC_631XESB) }, + { ICHX_PDEV(0x267a, LPC_631XESB) }, + { ICHX_PDEV(0x267b, LPC_631XESB) }, + { ICHX_PDEV(0x267c, LPC_631XESB) }, + { ICHX_PDEV(0x267d, LPC_631XESB) }, + { ICHX_PDEV(0x267e, LPC_631XESB) }, + { ICHX_PDEV(0x267f, LPC_631XESB) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH7_0, LPC_ICH7) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH7_30, LPC_ICH7DH) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH7_1, LPC_ICH7M) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH7_31, LPC_ICH7MDH) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_TGP_LPC, LPC_NM10) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH8_0, LPC_ICH8) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH8_2, LPC_ICH8DH) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH8_3, LPC_ICH8DO) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH8_4, LPC_ICH8M) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH8_1, LPC_ICH8ME) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH9_8, LPC_ICH9) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH9_7, LPC_ICH9R) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH9_2, LPC_ICH9DH) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH9_4, LPC_ICH9DO) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH9_5, LPC_ICH9M) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH9_1, LPC_ICH9ME) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH10_2, LPC_ICH10) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH10_1, LPC_ICH10R) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH10_3, LPC_ICH10D) }, + { ICHX_PDEV(PCI_DEVICE_ID_INTEL_ICH10_0, LPC_ICH10DO) }, + { ICHX_PDEV(0x3b00, LPC_PCH) }, + { ICHX_PDEV(0x3b01, LPC_PCHM) }, + { ICHX_PDEV(0x3b02, LPC_P55) }, + { ICHX_PDEV(0x3b03, LPC_PM55) }, + { ICHX_PDEV(0x3b06, LPC_H55) }, + { ICHX_PDEV(0x3b07, LPC_QM57) }, + { ICHX_PDEV(0x3b08, LPC_H57) }, + { ICHX_PDEV(0x3b09, LPC_HM55) }, + { ICHX_PDEV(0x3b0a, LPC_Q57) }, + { ICHX_PDEV(0x3b0b, LPC_HM57) }, + { ICHX_PDEV(0x3b0d, LPC_PCHMSFF) }, + { ICHX_PDEV(0x3b0f, LPC_QS57) }, + { ICHX_PDEV(0x3b12, LPC_3400) }, + { ICHX_PDEV(0x3b14, LPC_3420) }, + { ICHX_PDEV(0x3b16, LPC_3450) }, + { ICHX_PDEV(0x5031, LPC_EP80579) }, + { ICHX_PDEV(0x1c41, LPC_CPT1) }, + { ICHX_PDEV(0x1c42, LPC_CPT2) }, + { ICHX_PDEV(0x1c43, LPC_CPT3) }, + { ICHX_PDEV(0x1c44, LPC_CPT4) }, + { ICHX_PDEV(0x1c45, LPC_CPT5) }, + { ICHX_PDEV(0x1c46, LPC_CPT6) }, + { ICHX_PDEV(0x1c47, LPC_CPT7) }, + { ICHX_PDEV(0x1c48, LPC_CPT8) }, + { ICHX_PDEV(0x1c49, LPC_CPT9) }, + { ICHX_PDEV(0x1c4a, LPC_CPT10) }, + { ICHX_PDEV(0x1c4b, LPC_CPT11) }, + { ICHX_PDEV(0x1c4c, LPC_CPT12) }, + { ICHX_PDEV(0x1c4d, LPC_CPT13) }, + { ICHX_PDEV(0x1c4e, LPC_CPT14) }, + { ICHX_PDEV(0x1c4f, LPC_CPT15) }, + { ICHX_PDEV(0x1c50, LPC_CPT16) }, + { ICHX_PDEV(0x1c51, LPC_CPT17) }, + { ICHX_PDEV(0x1c52, LPC_CPT18) }, + { ICHX_PDEV(0x1c53, LPC_CPT19) }, + { ICHX_PDEV(0x1c54, LPC_CPT20) }, + { ICHX_PDEV(0x1c55, LPC_CPT21) }, + { ICHX_PDEV(0x1c56, LPC_CPT22) }, + { ICHX_PDEV(0x1c57, LPC_CPT23) }, + { ICHX_PDEV(0x1c58, LPC_CPT24) }, + { ICHX_PDEV(0x1c59, LPC_CPT25) }, + { ICHX_PDEV(0x1c5a, LPC_CPT26) }, + { ICHX_PDEV(0x1c5b, LPC_CPT27) }, + { ICHX_PDEV(0x1c5c, LPC_CPT28) }, + { ICHX_PDEV(0x1c5d, LPC_CPT29) }, + { ICHX_PDEV(0x1c5e, LPC_CPT30) }, + { ICHX_PDEV(0x1c5f, LPC_CPT31) }, + { ICHX_PDEV(0x1d40, LPC_PBG1) }, + { ICHX_PDEV(0x1d41, LPC_PBG2) }, + { ICHX_PDEV(0x2310, LPC_DH89XXCC) }, + { ICHX_PDEV(0x1e40, LPC_PPT0) }, + { ICHX_PDEV(0x1e41, LPC_PPT1) }, + { ICHX_PDEV(0x1e42, LPC_PPT2) }, + { ICHX_PDEV(0x1e43, LPC_PPT3) }, + { ICHX_PDEV(0x1e44, LPC_PPT4) }, + { ICHX_PDEV(0x1e45, LPC_PPT5) }, + { ICHX_PDEV(0x1e46, LPC_PPT6) }, + { ICHX_PDEV(0x1e47, LPC_PPT7) }, + { ICHX_PDEV(0x1e48, LPC_PPT8) }, + { ICHX_PDEV(0x1e49, LPC_PPT9) }, + { ICHX_PDEV(0x1e4a, LPC_PPT10) }, + { ICHX_PDEV(0x1e4b, LPC_PPT11) }, + { ICHX_PDEV(0x1e4c, LPC_PPT12) }, + { ICHX_PDEV(0x1e4d, LPC_PPT13) }, + { ICHX_PDEV(0x1e4e, LPC_PPT14) }, + { ICHX_PDEV(0x1e4f, LPC_PPT15) }, + { ICHX_PDEV(0x1e50, LPC_PPT16) }, + { ICHX_PDEV(0x1e51, LPC_PPT17) }, + { ICHX_PDEV(0x1e52, LPC_PPT18) }, + { ICHX_PDEV(0x1e53, LPC_PPT19) }, + { ICHX_PDEV(0x1e54, LPC_PPT20) }, + { ICHX_PDEV(0x1e55, LPC_PPT21) }, + { ICHX_PDEV(0x1e56, LPC_PPT22) }, + { ICHX_PDEV(0x1e57, LPC_PPT23) }, + { ICHX_PDEV(0x1e58, LPC_PPT24) }, + { ICHX_PDEV(0x1e59, LPC_PPT25) }, + { ICHX_PDEV(0x1e5a, LPC_PPT26) }, + { ICHX_PDEV(0x1e5b, LPC_PPT27) }, + { ICHX_PDEV(0x1e5c, LPC_PPT28) }, + { ICHX_PDEV(0x1e5d, LPC_PPT29) }, + { ICHX_PDEV(0x1e5e, LPC_PPT30) }, + { ICHX_PDEV(0x1e5f, LPC_PPT31) }, + { 0, }, +}; +MODULE_DEVICE_TABLE(pci, lpc_ich_ids); + +static int __devinit lpc_ich_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + u32 base_addr_cfg; + u32 base_addr; + int i; + + /* Setup power management base register */ + pci_read_config_dword(dev, ACPIBASE, &base_addr_cfg); + base_addr = base_addr_cfg & 0x0000ff80; + if (!base_addr) { + dev_err(&dev->dev, "I/O space for ACPI uninitialized\n"); + return -ENODEV; + } + + gpio_ich_res[ICH_RES_GPE0].start = base_addr + ACPIBASE_GPE_OFF; + gpio_ich_res[ICH_RES_GPE0].end = base_addr + ACPIBASE_GPE_END; + + /* Enable LPC ACPI space */ + pci_read_config_byte(dev, ACPICTRL, &lpc_ich_acpi_save); + pci_write_config_byte(dev, ACPICTRL, lpc_ich_acpi_save | 0x10); + + /* Setup GPIO base register */ + pci_read_config_dword(dev, GPIOBASE, &base_addr_cfg); + base_addr = base_addr_cfg & 0x0000ff80; + if (!base_addr) { + dev_err(&dev->dev, "I/O space for GPIO uninitialized\n"); + return -ENODEV; + } + + gpio_ich_res[ICH_RES_GPIO].start = base_addr; + gpio_ich_res[ICH_RES_GPIO].end = base_addr + GPIOBASE_IO_SIZE - 1; + + /* Enable LPC GPIO space */ + pci_read_config_byte(dev, GPIOCTRL, &lpc_ich_gpio_save); + pci_write_config_byte(dev, GPIOCTRL, lpc_ich_gpio_save | 0x10); + + for (i=0; i < ARRAY_SIZE(lpc_ich_cells); i++) + lpc_ich_cells[i].id = id->driver_data; + + return mfd_add_devices(&dev->dev, 0, + lpc_ich_cells, ARRAY_SIZE(lpc_ich_cells), NULL, 0); +} + +static void __devexit lpc_ich_remove(struct pci_dev *dev) +{ + mfd_remove_devices(&dev->dev); + + pci_write_config_byte(dev, GPIOCTRL, lpc_ich_gpio_save); + pci_write_config_byte(dev, ACPICTRL, lpc_ich_acpi_save); +} + +static struct pci_driver lpc_ich_driver = { + .name = "lpc_ich", + .id_table = lpc_ich_ids, + .probe = lpc_ich_probe, + .remove = __devexit_p(lpc_ich_remove), +}; + +static int __init lpc_ich_init(void) +{ + return pci_register_driver(&lpc_ich_driver); +} + +static void __exit lpc_ich_exit(void) +{ + pci_unregister_driver(&lpc_ich_driver); +} + +module_init(lpc_ich_init); +module_exit(lpc_ich_exit); + +MODULE_AUTHOR("Aaron Sierra "); +MODULE_DESCRIPTION("LPC interface for Intel ICH"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/lpc_ich.h b/include/linux/mfd/lpc_ich.h new file mode 100644 index 0000000..27a1c32 --- /dev/null +++ b/include/linux/mfd/lpc_ich.h @@ -0,0 +1,33 @@ +/* + * linux/drivers/mfd/lpc_ich.h + * + * Copyright (c) 2012 Extreme Engineering Solution, Inc. + * Author: Aaron Sierra + * + * 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. + */ +#ifndef LPC_ICH_H +#define LPC_ICH_H + +/* GPIO resources */ +#define ICH_RES_GPIO 0 +#define ICH_RES_GPE0 1 + +struct lpc_ich_info { + char *name; + unsigned int gpio_version; +}; + +extern struct lpc_ich_info lpc_chipset_info[]; +#endif -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/