southbridge/intel/lynxpoint: Use common gpio.c

Use shared gpio code from common folder, except for
INTEL_LYNXPOINT_LP, which has it's own gpio code.

Needs test on real hardware !

Change-Id: Iccc6d254bafb927b6470704cec7c9dd7528e2c68
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/13615
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

8 files changed, 14 insertions, 330 deletions

diff --git a/src/southbridge/intel/lynxpoint/Kconfig b/src/southbridge/intel/lynxpoint/Kconfig
index 01556a4ef3..744a31e69d 100644
--- a/src/southbridge/intel/lynxpoint/Kconfig
+++ b/src/southbridge/intel/lynxpoint/Kconfig
@@ -30,6 +30,7 @@ config SOUTH_BRIDGE_OPTIONS # dummy
 	select SPI_FLASH
 	select HAVE_INTEL_FIRMWARE
 	select HAVE_SPI_CONSOLE_SUPPORT
+	select SOUTHBRIDGE_INTEL_COMMON_GPIO if !INTEL_LYNXPOINT_LP
 
 config INTEL_LYNXPOINT_LP
 	bool
diff --git a/src/southbridge/intel/lynxpoint/Makefile.inc b/src/southbridge/intel/lynxpoint/Makefile.inc
index 203aeb51c7..e36b1b2b01 100644
--- a/src/southbridge/intel/lynxpoint/Makefile.inc
+++ b/src/southbridge/intel/lynxpoint/Makefile.inc
@@ -51,10 +51,6 @@ ifeq ($(CONFIG_INTEL_LYNXPOINT_LP),y)
 romstage-y += lp_gpio.c
 ramstage-y += lp_gpio.c
 smm-$(CONFIG_HAVE_SMI_HANDLER) += lp_gpio.c
-else
-romstage-y += gpio.c
-ramstage-y += gpio.c
-smm-$(CONFIG_HAVE_SMI_HANDLER) += gpio.c
 endif
 
 endif
diff --git a/src/southbridge/intel/lynxpoint/early_pch.c b/src/southbridge/intel/lynxpoint/early_pch.c
index 9802284a98..0e4fa3d5ea 100644
--- a/src/southbridge/intel/lynxpoint/early_pch.c
+++ b/src/southbridge/intel/lynxpoint/early_pch.c
@@ -27,7 +27,7 @@
 #if CONFIG_INTEL_LYNXPOINT_LP
 #include "lp_gpio.h"
 #else
-#include "gpio.h"
+#include "southbridge/intel/common/gpio.h"
 #endif
 
 const struct rcba_config_instruction pch_early_config[] = {
diff --git a/src/southbridge/intel/lynxpoint/gpio.c b/src/southbridge/intel/lynxpoint/gpio.c
deleted file mode 100644
index bcf3b761ed..0000000000
--- a/src/southbridge/intel/lynxpoint/gpio.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 The Chromium OS Authors. All rights reserved.
- *
- * 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.
- */
-
-#include <stdint.h>
-#include <string.h>
-#include <arch/io.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include "pch.h"
-#include "gpio.h"
-
-#define MAX_GPIO_NUMBER 75 /* zero based */
-
-static u16 get_gpio_base(void)
-{
-#if defined(__PRE_RAM__) || defined(__SMM__)
-	return pci_read_config16(PCH_LPC_DEV, GPIO_BASE) & 0xfffc;
-#else
-	return pci_read_config16(dev_find_slot(0, PCI_DEVFN(0x1f, 0)),
-				 GPIO_BASE) & 0xfffc;
-#endif
-}
-
-void setup_pch_gpios(const struct pch_gpio_map *gpio)
-{
-	u16 gpiobase = get_gpio_base();
-
-	/* GPIO Set 1 */
-	if (gpio->set1.level)
-		outl(*((u32*)gpio->set1.level), gpiobase + GP_LVL);
-	if (gpio->set1.mode)
-		outl(*((u32*)gpio->set1.mode), gpiobase + GPIO_USE_SEL);
-	if (gpio->set1.direction)
-		outl(*((u32*)gpio->set1.direction), gpiobase + GP_IO_SEL);
-	if (gpio->set1.reset)
-		outl(*((u32*)gpio->set1.reset), gpiobase + GP_RST_SEL1);
-	if (gpio->set1.invert)
-		outl(*((u32*)gpio->set1.invert), gpiobase + GPI_INV);
-	if (gpio->set1.blink)
-		outl(*((u32*)gpio->set1.blink), gpiobase + GPO_BLINK);
-
-	/* GPIO Set 2 */
-	if (gpio->set2.level)
-		outl(*((u32*)gpio->set2.level), gpiobase + GP_LVL2);
-	if (gpio->set2.mode)
-		outl(*((u32*)gpio->set2.mode), gpiobase + GPIO_USE_SEL2);
-	if (gpio->set2.direction)
-		outl(*((u32*)gpio->set2.direction), gpiobase + GP_IO_SEL2);
-	if (gpio->set2.reset)
-		outl(*((u32*)gpio->set2.reset), gpiobase + GP_RST_SEL2);
-
-	/* GPIO Set 3 */
-	if (gpio->set3.level)
-		outl(*((u32*)gpio->set3.level), gpiobase + GP_LVL3);
-	if (gpio->set3.mode)
-		outl(*((u32*)gpio->set3.mode), gpiobase + GPIO_USE_SEL3);
-	if (gpio->set3.direction)
-		outl(*((u32*)gpio->set3.direction), gpiobase + GP_IO_SEL3);
-	if (gpio->set3.reset)
-		outl(*((u32*)gpio->set3.reset), gpiobase + GP_RST_SEL3);
-}
-
-int get_gpio(int gpio_num)
-{
-	static const int gpio_reg_offsets[] = {0xc, 0x38, 0x48};
-	u16 gpio_base = get_gpio_base();
-	int index, bit;
-
-	if (gpio_num > MAX_GPIO_NUMBER)
-		return 0; /* Just ignore wrong gpio numbers. */
-
-	index = gpio_num / 32;
-	bit = gpio_num % 32;
-
-	return (inl(gpio_base + gpio_reg_offsets[index]) >> bit) & 1;
-}
-
-/*
- * get a number comprised of multiple GPIO values. gpio_num_array points to
- * the array of gpio pin numbers to scan, terminated by -1.
- */
-unsigned get_gpios(const int *gpio_num_array)
-{
-	int gpio;
-	unsigned bitmask = 1;
-	unsigned vector = 0;
-
-	while (bitmask &&
-	       ((gpio = *gpio_num_array++) != -1)) {
-		if (get_gpio(gpio))
-			vector |= bitmask;
-		bitmask <<= 1;
-	}
-	return vector;
-}
-
-void set_gpio(int gpio_num, int value)
-{
-	static const int gpio_reg_offsets[] = {0xc, 0x38, 0x48};
-	u16 gpio_base = get_gpio_base();
-	int index, bit;
-	u32 config;
-
-	if (gpio_num > MAX_GPIO_NUMBER)
-		return; /* Just ignore wrong gpio numbers. */
-
-	index = gpio_num / 32;
-	bit = gpio_num % 32;
-
-	config = inl(gpio_base + gpio_reg_offsets[index]);
-	config &= ~(1 << bit);
-	config |= value << bit;
-	outl(config, gpio_base + gpio_reg_offsets[index]);
-}
-
-int gpio_is_native(int gpio_num)
-{
-	static const int gpio_reg_offsets[] = {
-		GPIO_USE_SEL, GPIO_USE_SEL2, GPIO_USE_SEL3
-	};
-	u16 gpio_base = get_gpio_base();
-	int index, bit;
-	u32 config;
-
-	if (gpio_num > MAX_GPIO_NUMBER)
-		return 0; /* Just ignore wrong gpio numbers. */
-
-	index = gpio_num / 32;
-	bit = gpio_num % 32;
-
-	config = inl(gpio_base + gpio_reg_offsets[index]);
-	return !(config & (1 << bit));
-}
diff --git a/src/southbridge/intel/lynxpoint/gpio.h b/src/southbridge/intel/lynxpoint/gpio.h
deleted file mode 100644
index 5f62a65a78..0000000000
--- a/src/southbridge/intel/lynxpoint/gpio.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 The Chromium OS Authors. All rights reserved.
- *
- * 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.
- */
-
-#ifndef INTEL_LYNXPOINT_GPIO_H
-#define INTEL_LYNXPOINT_GPIO_H
-
-/* ICH7 GPIOBASE */
-#define GPIO_USE_SEL		0x00
-#define GP_IO_SEL		0x04
-#define GP_LVL			0x0c
-#define GPO_BLINK		0x18
-#define GPI_INV			0x2c
-#define GPIO_USE_SEL2		0x30
-#define GP_IO_SEL2		0x34
-#define GP_LVL2			0x38
-#define GPIO_USE_SEL3		0x40
-#define GP_IO_SEL3		0x44
-#define GP_LVL3			0x48
-#define GP_RST_SEL1		0x60
-#define GP_RST_SEL2		0x64
-#define GP_RST_SEL3		0x68
-
-#define GPIO_MODE_NATIVE	0
-#define GPIO_MODE_GPIO		1
-#define GPIO_MODE_NONE		1
-
-#define GPIO_DIR_OUTPUT		0
-#define GPIO_DIR_INPUT		1
-
-#define GPIO_NO_INVERT		0
-#define GPIO_INVERT		1
-
-#define GPIO_LEVEL_LOW		0
-#define GPIO_LEVEL_HIGH		1
-
-#define GPIO_NO_BLINK		0
-#define GPIO_BLINK		1
-
-#define GPIO_RESET_PWROK	0
-#define GPIO_RESET_RSMRST	1
-
-struct pch_gpio_set1 {
-	u32 gpio0 : 1;
-	u32 gpio1 : 1;
-	u32 gpio2 : 1;
-	u32 gpio3 : 1;
-	u32 gpio4 : 1;
-	u32 gpio5 : 1;
-	u32 gpio6 : 1;
-	u32 gpio7 : 1;
-	u32 gpio8 : 1;
-	u32 gpio9 : 1;
-	u32 gpio10 : 1;
-	u32 gpio11 : 1;
-	u32 gpio12 : 1;
-	u32 gpio13 : 1;
-	u32 gpio14 : 1;
-	u32 gpio15 : 1;
-	u32 gpio16 : 1;
-	u32 gpio17 : 1;
-	u32 gpio18 : 1;
-	u32 gpio19 : 1;
-	u32 gpio20 : 1;
-	u32 gpio21 : 1;
-	u32 gpio22 : 1;
-	u32 gpio23 : 1;
-	u32 gpio24 : 1;
-	u32 gpio25 : 1;
-	u32 gpio26 : 1;
-	u32 gpio27 : 1;
-	u32 gpio28 : 1;
-	u32 gpio29 : 1;
-	u32 gpio30 : 1;
-	u32 gpio31 : 1;
-} __attribute__ ((packed));
-
-struct pch_gpio_set2 {
-	u32 gpio32 : 1;
-	u32 gpio33 : 1;
-	u32 gpio34 : 1;
-	u32 gpio35 : 1;
-	u32 gpio36 : 1;
-	u32 gpio37 : 1;
-	u32 gpio38 : 1;
-	u32 gpio39 : 1;
-	u32 gpio40 : 1;
-	u32 gpio41 : 1;
-	u32 gpio42 : 1;
-	u32 gpio43 : 1;
-	u32 gpio44 : 1;
-	u32 gpio45 : 1;
-	u32 gpio46 : 1;
-	u32 gpio47 : 1;
-	u32 gpio48 : 1;
-	u32 gpio49 : 1;
-	u32 gpio50 : 1;
-	u32 gpio51 : 1;
-	u32 gpio52 : 1;
-	u32 gpio53 : 1;
-	u32 gpio54 : 1;
-	u32 gpio55 : 1;
-	u32 gpio56 : 1;
-	u32 gpio57 : 1;
-	u32 gpio58 : 1;
-	u32 gpio59 : 1;
-	u32 gpio60 : 1;
-	u32 gpio61 : 1;
-	u32 gpio62 : 1;
-	u32 gpio63 : 1;
-} __attribute__ ((packed));
-
-struct pch_gpio_set3 {
-	u32 gpio64 : 1;
-	u32 gpio65 : 1;
-	u32 gpio66 : 1;
-	u32 gpio67 : 1;
-	u32 gpio68 : 1;
-	u32 gpio69 : 1;
-	u32 gpio70 : 1;
-	u32 gpio71 : 1;
-	u32 gpio72 : 1;
-	u32 gpio73 : 1;
-	u32 gpio74 : 1;
-	u32 gpio75 : 1;
-} __attribute__ ((packed));
-
-struct pch_gpio_map {
-	struct {
-		const struct pch_gpio_set1 *mode;
-		const struct pch_gpio_set1 *direction;
-		const struct pch_gpio_set1 *level;
-		const struct pch_gpio_set1 *reset;
-		const struct pch_gpio_set1 *invert;
-		const struct pch_gpio_set1 *blink;
-	} set1;
-	struct {
-		const struct pch_gpio_set2 *mode;
-		const struct pch_gpio_set2 *direction;
-		const struct pch_gpio_set2 *level;
-		const struct pch_gpio_set2 *reset;
-	} set2;
-	struct {
-		const struct pch_gpio_set3 *mode;
-		const struct pch_gpio_set3 *direction;
-		const struct pch_gpio_set3 *level;
-		const struct pch_gpio_set3 *reset;
-	} set3;
-};
-
-/* Configure GPIOs with mainboard provided settings */
-void setup_pch_gpios(const struct pch_gpio_map *gpio);
-
-#endif
diff --git a/src/southbridge/intel/lynxpoint/lp_gpio.h b/src/southbridge/intel/lynxpoint/lp_gpio.h
index 4db6113f4d..c35e770441 100644
--- a/src/southbridge/intel/lynxpoint/lp_gpio.h
+++ b/src/southbridge/intel/lynxpoint/lp_gpio.h
@@ -163,4 +163,15 @@ struct pch_lp_gpio_map {
 /* Configure GPIOs with mainboard provided settings */
 void setup_pch_lp_gpios(const struct pch_lp_gpio_map map[]);
 
+/* get GPIO pin value */
+int get_gpio(int gpio_num);
+/*
+ * get a number comprised of multiple GPIO values. gpio_num_array points to
+ * the array of gpio pin numbers to scan, terminated by -1.
+ */
+unsigned get_gpios(const int *gpio_num_array);
+
+void set_gpio(int gpio_num, int value);
+
+int gpio_is_native(int gpio_num);
 #endif
diff --git a/src/southbridge/intel/lynxpoint/pch.h b/src/southbridge/intel/lynxpoint/pch.h
index 46c3f635e7..2b834ff439 100644
--- a/src/southbridge/intel/lynxpoint/pch.h
+++ b/src/southbridge/intel/lynxpoint/pch.h
@@ -167,21 +167,6 @@ void enable_all_gpe(u32 set1, u32 set2, u32 set3, u32 set4);
 void disable_all_gpe(void);
 void enable_gpe(u32 mask);
 void disable_gpe(u32 mask);
-/*
- * get GPIO pin value
- */
-int get_gpio(int gpio_num);
-/*
- * Get a number comprised of multiple GPIO values. gpio_num_array points to
- * the array of gpio pin numbers to scan, terminated by -1.
- */
-unsigned get_gpios(const int *gpio_num_array);
-/*
- * Set GPIO pin value.
- */
-void set_gpio(int gpio_num, int value);
-/* Return non-zero if gpio is set to native function. 0 otherwise. */
-int gpio_is_native(int gpio_num);
 
 #if !defined(__PRE_RAM__) && !defined(__SMM__)
 #include <device/device.h>
diff --git a/src/southbridge/intel/lynxpoint/pcie.c b/src/southbridge/intel/lynxpoint/pcie.c
index 41e8890b30..17858afdcb 100644
--- a/src/southbridge/intel/lynxpoint/pcie.c
+++ b/src/southbridge/intel/lynxpoint/pcie.c
@@ -20,6 +20,7 @@
 #include <device/pciexp.h>
 #include <device/pci_ids.h>
 #include "pch.h"
+#include <southbridge/intel/common/gpio.h>
 
 static void pcie_update_cfg8(device_t dev, int reg, u8 mask, u8 or);
 static void pcie_update_cfg(device_t dev, int reg, u32 mask, u32 or);