[PATCH 1/1] Adding support for STA2x11/Connext PCIexpress function 0xCC0C.
From: Anders Wallin
Date: Thu Sep 23 2010 - 14:25:48 EST
From: Anders Wallin <anders.wallin@xxxxxxxxxxxxx>
Signed-off-by: Anders Wallin <anders.wallin@xxxxxxxxxxxxx>
---
arch/x86/include/asm/gpio.h | 2 +-
drivers/gpio/Kconfig | 14 +
drivers/gpio/Makefile | 1 +
drivers/gpio/pl061_pci.c | 860 +++++++++++++++++++++++++++++++++++++++++
drivers/gpio/pl061_pci.h | 29 ++
drivers/misc/Kconfig | 23 ++
drivers/misc/Makefile | 3 +
drivers/misc/sta2x11_apbreg.c | 177 +++++++++
drivers/misc/sta2x11_apbreg.h | 39 ++
drivers/misc/sta2x11_mux.c | 265 +++++++++++++
drivers/misc/sta2x11_mux.h | 50 +++
drivers/misc/sta2x11_sctl.c | 189 +++++++++
drivers/misc/sta2x11_sctl.h | 143 +++++++
13 files changed, 1794 insertions(+), 1 deletions(-)
create mode 100644 drivers/gpio/pl061_pci.c
create mode 100644 drivers/gpio/pl061_pci.h
create mode 100644 drivers/misc/sta2x11_apbreg.c
create mode 100644 drivers/misc/sta2x11_apbreg.h
create mode 100644 drivers/misc/sta2x11_mux.c
create mode 100644 drivers/misc/sta2x11_mux.h
create mode 100644 drivers/misc/sta2x11_sctl.c
create mode 100644 drivers/misc/sta2x11_sctl.h
diff --git a/arch/x86/include/asm/gpio.h b/arch/x86/include/asm/gpio.h
index 49dbfdf..9da6f01 100644
--- a/arch/x86/include/asm/gpio.h
+++ b/arch/x86/include/asm/gpio.h
@@ -43,7 +43,7 @@ static inline int gpio_cansleep(unsigned int gpio)
*/
static inline int gpio_to_irq(unsigned int gpio)
{
- return -ENOSYS;
+ return __gpio_to_irq(gpio);
}
static inline int irq_to_gpio(unsigned int irq)
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 510aa20..7afbabb 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -361,4 +361,18 @@ config GPIO_JANZ_TTL
This driver provides support for driving the pins in output
mode only. Input mode is not supported.
+config GPIO_PL061_PCI
+ bool "STA2x11/ConneXt PL061_PCI GPIO support"
+ depends on STA2X11_PCI_MUX
+ help
+ Say yes here to support the STA2x11/ConneXt PL061_PCI GPIO device
+
+config GPIO_PL061_PCI_IRQ
+ bool "ConneXt PL061_PCI gpio_to_irq support"
+ depends on GPIO_PL061_PCI
+ help
+ The gpiolib has a function called gpio_to_irq that has
+ the requirement that the number returned should be usable by
+ calling request_irq.
+
endif
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index fc6019d..0480109 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -8,6 +8,7 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG
obj-$(CONFIG_GPIOLIB) += gpiolib.o
+obj-$(CONFIG_GPIO_PL061_PCI) += pl061_pci.o
obj-$(CONFIG_GPIO_ADP5520) += adp5520-gpio.o
obj-$(CONFIG_GPIO_ADP5588) += adp5588-gpio.o
obj-$(CONFIG_GPIO_LANGWELL) += langwell_gpio.o
diff --git a/drivers/gpio/pl061_pci.c b/drivers/gpio/pl061_pci.c
new file mode 100644
index 0000000..540a764
--- /dev/null
+++ b/drivers/gpio/pl061_pci.c
@@ -0,0 +1,860 @@
+/*
+ * linux/driver/gpio/pl061_pci.c, pl061 GPIO driver for ConneXt
+ *
+ * STMicroelectronics ConneXt (STA2X11/STA2X10) GPIO file
+ * derived from from linux/driver/gpio/pl061.c
+ *
+ * Copyright (c) 2009-2010 Wind River Systems, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/bitops.h>
+#include <linux/debugfs.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include "../misc/sta2x11_mux.h"
+#include "pl061_pci.h"
+
+/* all gpio registers */
+#define GPIO_DAT 0x00
+#define GPIO_DATS 0x04
+#define GPIO_DATC 0x08
+#define GPIO_PDIS 0x0c
+#define GPIO_DIR 0x10
+#define GPIO_DIRS 0x14
+#define GPIO_DIRC 0x18
+#define GPIO_AFSELA 0x20
+#define GPIO_RIMSC 0x40
+#define GPIO_FIMSC 0x44
+#define GPIO_IS 0x48
+#define GPIO_IC 0x4c
+#define GPIO_PERIPH_ID0 0xfe0
+#define GPIO_PERIPH_ID1 0xfe4
+#define GPIO_PERIPH_ID2 0xfe8
+#define GPIO_PERIPH_ID3 0xfec
+#define GPIO_PCELL_ID0 0xff0
+#define GPIO_PCELL_ID1 0xff4
+#define GPIO_PCELL_ID2 0xff8
+#define GPIO_PCELL_ID3 0xffc
+
+#define DRV_VERSION "1.0"
+
+#define CHIP_REGS_LENGTH 0x1000 /* registers length for each GPIO */
+#define GPIO_BLOCKS 4 /* instances of GPIO blocks */
+#define PINS_PER_CHIP 32 /* pins for each GPIO */
+
+#define PIN_NR (PINS_PER_CHIP * GPIO_BLOCKS) /* All pins */
+
+#define nr_to_mask(nr) (1 << (nr % PINS_PER_CHIP))
+
+struct gpio_alternative {
+ int start;
+ int end;
+};
+
+#define STA2X11_NORTHVILLE
+#ifdef STA2X11_NORTHVILLE
+static struct gpio_alternative alt_cfg[] = {
+ {8, 15}, /* RGB Red 8 bit parallel */
+ {16, 23}, /* RGB Green 8 bit parallel */
+ {24, 31}, /* RGB Blue 8 bit parallel */
+ {32, 34}, /* RGB ctrl */
+ {35, 43}, /* ETH */
+ {44, 45}, /* CAN 2 */
+ {46, 47}, /* MLB */
+ {48, 51}, /* SPI 0 */
+ /* {52, 55 }, *//* SPI 1 */
+ /* {56, 58}, *//* SPI 2 */
+ {60, 61}, /* I2C 0 */
+ {62, 63}, /* I2C 1 */
+ {64, 65}, /* I2C 2 */
+ /* {66, 67}, *//* I2C 3 */
+ /* {68, 74}, *//* MSP 0 */
+ {75, 78}, /* MSP 1 */
+ /* {79, 82}, *//* MSP 2 */
+ {83, 86}, /* MSP 3 */
+ /*{87, 89}, *//* MSP 4 */
+ {91, 94}, /* MSP 5 */
+ /*{95, 100}, *//* SDIO 3 */
+ {105, 110}, /* SDIO 2 */
+ {115, 120}, /* SDIO 1 */
+ {125, 126}, /* rx/tx UART 2 */
+ {127, 127}, /* tx UART 3 */
+ {0, 0}
+};
+#else
+static struct gpio_alternative alt_cfg[] = {
+ {8, 15}, /* RGB Red 8 bit parallel */
+ {16, 23}, /* RGB Green 8 bit parallel */
+ {24, 31}, /* RGB Blue 8 bit parallel */
+ {32, 34}, /* RGB ctrl */
+ {35, 43}, /* ETH */
+ {44, 45}, /* CAN 2 */
+ {46, 47}, /* MLB */
+ {48, 51}, /* SPI 0 */
+ {52, 55}, /* SPI 1 */
+ {56, 59}, /* SPI 2 */
+ {60, 61}, /* I2C 0 */
+ {62, 63}, /* I2C 1 */
+ {64, 65}, /* I2C 2 */
+ {66, 67}, /* I2C 3 */
+ {68, 74}, /* MSP 0 */
+ {75, 78}, /* MSP 1 */
+ {79, 82}, /* MSP 2 */
+ {83, 86}, /* MSP 3 */
+ {87, 90}, /* MSP 4 */
+ {91, 94}, /* MSP 5 */
+ {95, 100}, /* SDIO 3 */
+ {105, 110}, /* SDIO 2 */
+ {115, 120}, /* SDIO 1 */
+ {125, 126}, /* rx/tx UART 2 */
+ {127, 127}, /* tx UART 3 */
+ {0, 0}
+};
+#endif
+
+static struct pl061_pci {
+ spinlock_t lock;
+ spinlock_t irq_lock;
+ /* base addr of each GPIO block */
+ void __iomem *reg_base[GPIO_BLOCKS];
+
+ unsigned irq_base;
+ unsigned int irq_type[PIN_NR];
+ char irq_name[PIN_NR][4];
+
+ unsigned int reserved[PIN_NR];
+
+ /** save data for PM */
+ u32 saved_dat[GPIO_BLOCKS];
+ u32 saved_dir[GPIO_BLOCKS];
+ u32 saved_fimsc[GPIO_BLOCKS];
+ u32 saved_rimsc[GPIO_BLOCKS];
+ u32 saved_afsela[GPIO_BLOCKS];
+ u32 saved_pdis[GPIO_BLOCKS];
+
+ u32 values[GPIO_BLOCKS];
+ unsigned gpio_base;
+
+ struct pci_dev *pdev;
+ struct gpio_chip gpio;
+} *gp;
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *pl061_pci_debugfs_dir;
+static int pl061_pci_open(struct inode *inode, struct file *file);
+static ssize_t pl061_pci_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos);
+
+static const struct file_operations pl061_pci_operations = {
+ .owner = THIS_MODULE,
+ .open = pl061_pci_open,
+ .read = pl061_pci_read
+};
+
+static void pl061_pci_create_debugfile(char *debugfs_filename,
+ void __iomem *reg_base)
+{
+ (void)debugfs_create_file(debugfs_filename, S_IFREG | S_IRUGO,
+ pl061_pci_debugfs_dir, reg_base,
+ &pl061_pci_operations);
+}
+
+#define BUFSIZE 1024
+static ssize_t pl061_pci_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char *buf;
+ u32 len = 0;
+ ssize_t ret;
+ void __iomem *reg_base;
+
+ reg_base = (void __iomem *)file->private_data;
+ if (!reg_base)
+ return 0;
+
+ buf = kzalloc(BUFSIZE, GFP_KERNEL);
+ if (!buf)
+ return 0;
+
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_DAT:\t\t0x%08x\n",
+ readl(reg_base + GPIO_DAT));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_DATC:\t\t0x%08x\n",
+ readl(reg_base + GPIO_DATC));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_DATS:\t\t0x%08x\n",
+ readl(reg_base + GPIO_DATS));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_PDIS:\t\t0x%08x\n",
+ readl(reg_base + GPIO_PDIS));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_DIR:\t\t0x%08x\n",
+ readl(reg_base + GPIO_DIR));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_DIRC:\t\t0x%08x\n",
+ readl(reg_base + GPIO_DIRC));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_DIRS:\t\t0x%08x\n",
+ readl(reg_base + GPIO_DIRS));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_AFSELA:\t\t0x%08x\n",
+ readl(reg_base + GPIO_AFSELA));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_RIMSC:\t\t0x%08x\n",
+ readl(reg_base + GPIO_RIMSC));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_FIMSC:\t\t0x%08x\n",
+ readl(reg_base + GPIO_FIMSC));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_IS:\t\t0x%08x\n",
+ readl(reg_base + GPIO_IS));
+ len +=
+ snprintf(buf + len, BUFSIZE - len, "GPIO_IC:\t\t0x%08x\n",
+ readl(reg_base + GPIO_IC));
+ len +=
+ snprintf(buf + len, BUFSIZE - len,
+ "GPIO_PERIPH:\t\t%02x:%02x:%02x:%02x\n",
+ readl(reg_base + GPIO_PERIPH_ID0),
+ readl(reg_base + GPIO_PERIPH_ID1),
+ readl(reg_base + GPIO_PERIPH_ID2),
+ readl(reg_base + GPIO_PERIPH_ID3));
+ len +=
+ snprintf(buf + len, BUFSIZE - len,
+ "GPIO_PCELL:\t\t%02x:%02x:%02x:%02x\n",
+ readl(reg_base + GPIO_PCELL_ID0),
+ readl(reg_base + GPIO_PCELL_ID1),
+ readl(reg_base + GPIO_PCELL_ID2),
+ readl(reg_base + GPIO_PCELL_ID3));
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+ kfree(buf);
+ return ret;
+}
+
+static int pl061_pci_open(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+
+ return 0;
+}
+
+static int __init pl061_pci_debugfs_init(void)
+{
+ /* /sys/kernel/debug/pl061_pci */
+
+ pl061_pci_debugfs_dir = debugfs_create_dir("pl061_pci", NULL);
+ if (!pl061_pci_debugfs_dir)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int __exit pl061_pci_debugfs_exit(void)
+{
+ debugfs_remove_recursive(pl061_pci_debugfs_dir);
+
+ return 0;
+}
+#else
+#define pl061_pci_create_debugfile() {}
+#define pl061_pci_debugfs_init() {}
+#define pl061_pci_debugfs_exit() {}
+#endif /* DEBUG_FS */
+
+static int pl061_pci_read_reg(int reg, unsigned nr)
+{
+ u32 value;
+
+ if (nr >= gp->gpio.ngpio)
+ return -EINVAL;
+
+ value = readl(gp->reg_base[nr / PINS_PER_CHIP] + reg);
+
+ return !!(value & (nr_to_mask(nr)));
+}
+
+static int pl061_pci_set_reg(int reg, unsigned nr)
+{
+ unsigned long flags;
+ int tmp;
+
+ if (nr >= gp->gpio.ngpio)
+ return -EINVAL;
+
+ spin_lock_irqsave(&gp->irq_lock, flags);
+
+ tmp = readl(gp->reg_base[nr / PINS_PER_CHIP] + reg);
+ tmp = tmp | nr_to_mask(nr);
+ writel(tmp, gp->reg_base[nr / PINS_PER_CHIP] + reg);
+
+ spin_unlock_irqrestore(&gp->irq_lock, flags);
+ return tmp;
+}
+
+static int pl061_pci_clear_reg(int reg, unsigned nr)
+{
+ unsigned long flags;
+ int tmp;
+
+ if (nr >= gp->gpio.ngpio)
+ return -EINVAL;
+
+ spin_lock_irqsave(&gp->irq_lock, flags);
+
+ tmp = readl(gp->reg_base[nr / PINS_PER_CHIP] + reg);
+ tmp = tmp & ~(nr_to_mask(nr));
+ writel(tmp, gp->reg_base[nr / PINS_PER_CHIP] + reg);
+
+ spin_unlock_irqrestore(&gp->irq_lock, flags);
+ return tmp;
+}
+
+/**
+ * pl061_pci_read_pdis - Read the PL061 PDIS register for GPIO number
+ * @nr: The GPIO number
+ *
+ * Returns the value of the GPIO number PDIS status, or -EINVAL
+ */
+int pl061_pci_read_pdis(unsigned nr)
+{
+ return pl061_pci_read_reg(GPIO_PDIS, nr);
+}
+EXPORT_SYMBOL(pl061_pci_read_pdis);
+
+/**
+ * pl061_pci_read_afsela - Read the PL061 AFSELA register for GPIO number
+ * @nr: The GPIO number
+ *
+ * Returns the value of the GPIO number AFSELA status, or -EINVAL
+ */
+int pl061_pci_read_afsela(unsigned nr)
+{
+ return pl061_pci_read_reg(GPIO_AFSELA, nr);
+}
+EXPORT_SYMBOL(pl061_pci_read_afsela);
+
+/**
+ * pl061_pci_set_pdis - Set the GPIO number in the PDIS PL061 register.
+ * @nr: The GPIO number
+ *
+ * The setting of bits are atomic. Returns the value of the
+ * register after the bits has been set
+ * EINVAL: if gpio number to big
+ */
+int pl061_pci_set_pdis(unsigned nr)
+{
+ return pl061_pci_set_reg(GPIO_PDIS, nr);
+}
+EXPORT_SYMBOL(pl061_pci_set_pdis);
+
+/**
+ * pl061_pci_set_afsela - Set the GPIO number in the AFSELA PL061 register.
+ * @nr: The GPIO number
+ *
+ * The setting of bits are atomic. Returns the value of the
+ * register after the bits has been set
+ * EINVAL: if gpio number to big
+ * EBUSY: if gpio number already taken
+ */
+int pl061_pci_set_afsela(unsigned nr)
+{
+ if (gp->reserved[nr / PINS_PER_CHIP] & nr_to_mask(nr)) {
+ printk(KERN_ERR "%s: gpio(%i) already reserved\n",
+ __func__, nr);
+ return -EBUSY;
+ }
+ gp->reserved[nr / PINS_PER_CHIP] |= nr_to_mask(nr);
+
+ return pl061_pci_set_reg(GPIO_AFSELA, nr);
+}
+EXPORT_SYMBOL(pl061_pci_set_afsela);
+
+/**
+ * pl061_pci_clear_pdis - Clear the GPIO number in the PDIS PL061 register.
+ * @nr: The GPIO number
+ *
+ * The clearing of bits are atomic. Returns the value of the
+ * register after the bits has been cleared
+ * EINVAL: if gpio number to big
+ */
+int pl061_pci_clear_pdis(unsigned nr)
+{
+ return pl061_pci_clear_reg(GPIO_PDIS, nr);
+}
+EXPORT_SYMBOL(pl061_pci_clear_pdis);
+
+/**
+ * pl061_pci_clear_afsela - Clear the GPIO number in the AFSELA PL061 register.
+ * @nr: The GPIO number
+ *
+ * The clearing of bits are atomic. Returns the value (or EINVAL) of the
+ * register after the bits has been cleared
+ * EINVAL: if gpio number to big
+ * EBUSY: if gpio number already taken
+ */
+int pl061_pci_clear_afsela(unsigned nr)
+{
+ if (!(gp->reserved[nr / PINS_PER_CHIP] & nr_to_mask(nr))) {
+ printk(KERN_ERR "%s: gpio(%i) is not reserved\n",
+ __func__, nr);
+ return -EBUSY;
+ }
+ gp->reserved[nr / PINS_PER_CHIP] &= ~nr_to_mask(nr);
+ return pl061_pci_clear_reg(GPIO_AFSELA, nr);
+}
+EXPORT_SYMBOL(pl061_pci_clear_afsela);
+
+static int pl061_pci_request(struct gpio_chip *gpio, unsigned nr)
+{
+ struct pl061_pci *pp = container_of(gpio, struct pl061_pci, gpio);
+
+ if (nr >= gpio->ngpio)
+ return -EINVAL;
+
+ if (nr_to_mask(nr) & pp->reserved[nr / PINS_PER_CHIP])
+ return -EBUSY;
+ return 0;
+}
+
+static int pl061_pci_direction_input(struct gpio_chip *gpio, unsigned nr)
+{
+ struct pl061_pci *pp = container_of(gpio, struct pl061_pci, gpio);
+
+ if (nr >= gpio->ngpio)
+ return -EINVAL;
+
+ writel(nr_to_mask(nr), pp->reg_base[nr / PINS_PER_CHIP] + GPIO_DIRC);
+
+ return 0;
+}
+
+static int pl061_pci_direction_output(struct gpio_chip *gpio,
+ unsigned nr, int value)
+{
+ struct pl061_pci *pp = container_of(gpio, struct pl061_pci, gpio);
+
+ if (nr >= gpio->ngpio)
+ return -EINVAL;
+
+ writel(nr_to_mask(nr), pp->reg_base[nr / PINS_PER_CHIP] + GPIO_DIRS);
+
+ if (value)
+ writel(nr_to_mask(nr),
+ pp->reg_base[nr / PINS_PER_CHIP] + GPIO_DATS);
+ else
+ writel(nr_to_mask(nr),
+ pp->reg_base[nr / PINS_PER_CHIP] + GPIO_DATC);
+ return 0;
+}
+
+static int pl061_pci_get_value(struct gpio_chip *gpio, unsigned nr)
+{
+ struct pl061_pci *pp = container_of(gpio, struct pl061_pci, gpio);
+ u32 value;
+
+ if (nr >= gpio->ngpio)
+ return -EINVAL;
+
+ value = readl(pp->reg_base[nr / PINS_PER_CHIP] + GPIO_DAT);
+
+ return !!(value & (nr_to_mask(nr)));
+}
+
+static void pl061_pci_set_value(struct gpio_chip *gpio, unsigned nr, int value)
+{
+ struct pl061_pci *pp = container_of(gpio, struct pl061_pci, gpio);
+ int offset;
+
+ if (nr >= gpio->ngpio)
+ return;
+ if (value)
+ offset = GPIO_DATS;
+ else
+ offset = GPIO_DATC;
+
+ writel(nr_to_mask(nr), pp->reg_base[nr / PINS_PER_CHIP] + offset);
+
+ return;
+}
+
+#ifdef CONFIG_GPIO_PL061_PCI_IRQ
+static int pl061_pci_to_irq(struct gpio_chip *gpio, unsigned nr)
+{
+ struct pl061_pci *pp = container_of(gpio, struct pl061_pci, gpio);
+ void *base;
+
+ if (nr >= gpio->ngpio)
+ return -EINVAL;
+ base = pp->reg_base[nr / PINS_PER_CHIP];
+
+ if (pp->irq_base == (unsigned)-1)
+ return -EINVAL;
+
+ return pp->irq_base + nr;
+}
+
+static void pl061_pci_irq_disable(unsigned irq)
+{
+ struct pl061_pci *pp = get_irq_chip_data(irq);
+ unsigned nr = irq - pp->irq_base;
+ unsigned long flags;
+ u32 gpio_irq;
+ void *base;
+
+ if (nr >= pp->gpio.ngpio)
+ return;
+ base = pp->reg_base[nr / PINS_PER_CHIP];
+
+ spin_lock_irqsave(&pp->irq_lock, flags);
+
+ if (pp->irq_type[nr] & IRQ_TYPE_EDGE_RISING) {
+ gpio_irq = readl(base + GPIO_RIMSC);
+ gpio_irq &= ~(nr_to_mask(nr));
+ writel(gpio_irq, base + GPIO_RIMSC);
+ }
+
+ if (pp->irq_type[nr] & IRQ_TYPE_EDGE_FALLING) {
+ gpio_irq = readl(base + GPIO_FIMSC);
+ gpio_irq &= ~(nr_to_mask(nr));
+ writel(gpio_irq, base + GPIO_FIMSC);
+ }
+
+ spin_unlock_irqrestore(&pp->irq_lock, flags);
+ return;
+}
+
+static void pl061_pci_irq_enable(unsigned irq)
+{
+ struct pl061_pci *pp = get_irq_chip_data(irq);
+ unsigned nr = irq - pp->irq_base;
+ unsigned long flags;
+ u32 gpio_irq;
+ void *base;
+
+ if (nr >= pp->gpio.ngpio)
+ return;
+ base = pp->reg_base[nr / PINS_PER_CHIP];
+
+ spin_lock_irqsave(&pp->irq_lock, flags);
+
+ /* first turn off both interrupt modes */
+ gpio_irq = readl(base + GPIO_RIMSC);
+ gpio_irq &= ~(nr_to_mask(nr));
+ writel(gpio_irq, base + GPIO_RIMSC);
+
+ gpio_irq = readl(base + GPIO_FIMSC);
+ gpio_irq &= ~(nr_to_mask(nr));
+ writel(gpio_irq, base + GPIO_FIMSC);
+
+ /* turn on what was requested. */
+ if (pp->irq_type[nr] & IRQ_TYPE_EDGE_RISING) {
+ gpio_irq = readl(base + GPIO_RIMSC);
+ gpio_irq |= nr_to_mask(nr);
+ writel(gpio_irq, base + GPIO_RIMSC);
+ }
+
+ if (pp->irq_type[nr] & IRQ_TYPE_EDGE_FALLING) {
+ gpio_irq = readl(base + GPIO_FIMSC);
+ gpio_irq |= nr_to_mask(nr);
+ writel(gpio_irq, base + GPIO_FIMSC);
+ }
+
+ spin_unlock_irqrestore(&pp->irq_lock, flags);
+ return;
+}
+
+static int pl061_pci_irq_type(unsigned irq, unsigned trigger)
+{
+ struct pl061_pci *pp = get_irq_chip_data(irq);
+ unsigned nr = irq - pp->irq_base;
+
+ if ((nr < 0) ||
+ (nr >= pp->gpio.ngpio) ||
+ (trigger != IRQ_TYPE_EDGE_RISING &&
+ trigger != IRQ_TYPE_EDGE_FALLING && trigger != IRQ_TYPE_EDGE_BOTH))
+ return -EINVAL;
+
+ pp->irq_type[nr] = trigger;
+ pl061_pci_irq_enable(irq);
+
+ return 0;
+}
+
+static struct irq_chip pl061_pci_irqchip = {
+ .name = "GPIO",
+ .enable = pl061_pci_irq_enable,
+ .disable = pl061_pci_irq_disable,
+ .set_type = pl061_pci_irq_type,
+};
+#endif
+
+/** All GPIO pins share a hardware irq */
+static irqreturn_t pl061_pci_irq_handler(int irq, void *dev_id)
+{
+ struct pl061_pci *pp = (struct pl061_pci *)dev_id;
+ u32 gpio_is = 0;
+ int i, bit;
+ irqreturn_t ret = IRQ_NONE;
+
+ for (i = 0; i < GPIO_BLOCKS; i++) {
+ gpio_is = readl(pp->reg_base[i] + GPIO_IS);
+ if (gpio_is == 0)
+ continue;
+
+ for (bit = 0; bit < 32; bit++) {
+ if (gpio_is & (1 << bit)) {
+ writel(1 << bit, pp->reg_base[i] + GPIO_IC);
+
+#ifdef CONFIG_GPIO_PL061_PCI_IRQ
+ {
+ int irq;
+ irq = pl061_pci_to_irq(&pp->gpio,
+ bit +
+ i *
+ PINS_PER_CHIP);
+ generic_handle_irq(irq);
+ }
+#endif
+ ret = IRQ_HANDLED;
+ }
+ }
+ }
+ return ret;
+}
+
+static void pl061_pci_setup(struct pl061_pci *pp)
+{
+ struct gpio_chip *chip = &(pp->gpio);
+
+ chip->request = pl061_pci_request;
+ chip->direction_input = pl061_pci_direction_input;
+ chip->direction_output = pl061_pci_direction_output;
+ chip->get = pl061_pci_get_value;
+ chip->set = pl061_pci_set_value;
+ chip->ngpio = PIN_NR;
+ chip->label = "GPIO";
+ chip->dev = &(pp->pdev->dev);
+ chip->owner = THIS_MODULE;
+ chip->can_sleep = 0;
+ chip->base = pp->gpio_base;
+#ifdef CONFIG_GPIO_PL061_PCI_IRQ
+ chip->to_irq = pl061_pci_to_irq;
+#endif
+
+ return;
+}
+
+static int pl061_pci_suspend(struct sta2x11_mux_driver *dev, pm_message_t state)
+{
+ struct pl061_pci *pp = dev->priv;
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&pp->lock, flags);
+
+ for (i = 0; i < GPIO_BLOCKS; i++) {
+ pp->saved_dat[i] = readl(pp->reg_base[i] + GPIO_DAT);
+ pp->saved_dir[i] = readl(pp->reg_base[i] + GPIO_DIRS);
+ pp->saved_fimsc[i] = readl(pp->reg_base[i] + GPIO_FIMSC);
+ pp->saved_rimsc[i] = readl(pp->reg_base[i] + GPIO_RIMSC);
+ pp->saved_afsela[i] = readl(pp->reg_base[i] + GPIO_AFSELA);
+ pp->saved_pdis[i] = readl(pp->reg_base[i] + GPIO_PDIS);
+
+ /* Clear all interrupts */
+ writel(0xffffffff, pp->reg_base[i] + GPIO_IC);
+ /* Set all gpio's to input direction */
+ writel(0x0, pp->reg_base[i] + GPIO_DIR);
+ }
+
+ spin_unlock_irqrestore(&pp->lock, flags);
+
+ return 0;
+}
+
+static int pl061_pci_resume(struct sta2x11_mux_driver *dev)
+{
+ struct pl061_pci *pp = dev->priv;
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&pp->lock, flags);
+
+ for (i = 0; i < GPIO_BLOCKS; i++) {
+ writel(pp->saved_pdis[i], pp->reg_base[i] + GPIO_PDIS);
+ writel(pp->saved_afsela[i], pp->reg_base[i] + GPIO_AFSELA);
+ writel(pp->saved_dir[i], pp->reg_base[i] + GPIO_DIRS);
+ writel(pp->saved_dat[i], pp->reg_base[i] + GPIO_DAT);
+ writel(pp->saved_fimsc[i], pp->reg_base[i] + GPIO_FIMSC);
+ writel(pp->saved_rimsc[i], pp->reg_base[i] + GPIO_RIMSC);
+ }
+
+ spin_unlock_irqrestore(&pp->lock, flags);
+
+ return 0;
+}
+
+static struct sta2x11_mux_driver pl061_driver = {
+ .suspend = pl061_pci_suspend,
+ .resume = pl061_pci_resume,
+};
+
+static int __init pl061_pci_init(void)
+{
+ struct pl061_pci *pp;
+ int err = 0;
+ int i = 0;
+ unsigned int irq;
+
+ printk(KERN_INFO "pl061_pci: Module version " DRV_VERSION "\n");
+ pp = kzalloc(sizeof(*pp), GFP_KERNEL);
+ if (!pp)
+ return -ENOMEM;
+
+ gp = pp;
+
+ err = sta2x11_mux_register(&pl061_driver);
+ if (err) {
+ printk(KERN_ERR
+ "pl061_pci: could not register with sta2x11_mux %x %d\n",
+ err, err);
+ goto err_freepp;
+ }
+
+ pp->pdev = pl061_driver.pdev;
+ pp->irq_base = NR_IRQS - PIN_NR;
+ pp->gpio_base = 0;
+
+ spin_lock_init(&(pp->lock));
+ spin_lock_init(&(pp->irq_lock));
+
+ pl061_driver.priv = pp;
+
+ /** init register base for each GPIO */
+ pp->reg_base[0] = pl061_driver.reg_base0;
+
+ for (i = 1; i < GPIO_BLOCKS; i++)
+ pp->reg_base[i] = pp->reg_base[i - 1] + CHIP_REGS_LENGTH;
+
+ pl061_pci_setup(pp);
+
+ /** disable all irqs */
+ for (i = 0; i < GPIO_BLOCKS; i++) {
+ writel(0, pp->reg_base[i] + GPIO_RIMSC);
+ writel(0, pp->reg_base[i] + GPIO_FIMSC);
+ writel(0xffffffff, pp->reg_base[i] + GPIO_IC);
+ writel(0, pp->reg_base[i] + GPIO_AFSELA);
+ }
+
+ irq = pl061_driver.pdev->irq;
+ if (irq < 0) {
+ err = -ENODEV;
+ goto err_freepp;
+ }
+
+ if (request_irq
+ (irq, pl061_pci_irq_handler, IRQF_SHARED, "pl061_pci", pp)) {
+ printk(KERN_ERR "Failed to request interrupt for pl061_pci.\n");
+ goto err_freepp;
+ }
+#ifdef CONFIG_GPIO_PL061_PCI_IRQ
+ for (i = 0; i < GPIO_BLOCKS * PINS_PER_CHIP; i++) {
+ pl061_pci_direction_input(&pp->gpio, i);
+ pp->irq_type[i] = IRQ_TYPE_EDGE_FALLING;
+ sprintf(&pp->irq_name[i][0], "%d", i);
+ set_irq_chip_and_handler_name(i + pp->irq_base,
+ &pl061_pci_irqchip,
+ handle_simple_irq,
+ &pp->irq_name[i][0]);
+ set_irq_chip_data(i + pp->irq_base, pp);
+ }
+#endif
+
+ /* grab the pins that is in alternative mode so nothing in the
+ * system can use them
+ */
+ for (i = 0; alt_cfg[i].start != 0 && alt_cfg[i].end != 0; i++) {
+ int start = alt_cfg[i].start;
+ int end = alt_cfg[i].end;
+ int x;
+ for (x = start; x <= end; x++) {
+ int tmp;
+ tmp = readl(pp->reg_base[x / PINS_PER_CHIP] +
+ GPIO_AFSELA);
+ tmp |= nr_to_mask(x);
+ pp->reserved[x / PINS_PER_CHIP] |= nr_to_mask(x);
+ writel(tmp, pp->reg_base[x / PINS_PER_CHIP] +
+ GPIO_AFSELA);
+ }
+ }
+
+ err = gpiochip_add(&pp->gpio);
+ if (err) {
+ printk(KERN_ERR "pl061_pci: Failed to register GPIOs\n");
+ goto err_freepp;
+ }
+
+ pl061_pci_debugfs_init();
+ for (i = 0; i < GPIO_BLOCKS; i++) {
+ char str[5];
+ sprintf(str, "%d", i);
+ pl061_pci_create_debugfile(str, pp->reg_base[i]);
+ }
+
+ return 0;
+
+err_freepp:
+ kfree(pp);
+ gp = NULL;
+ return err;
+}
+
+static void __exit pl061_pci_exit(void)
+{
+ struct pl061_pci *pp = gp;
+
+ /* init failed */
+ if (!gp)
+ return;
+
+ if (gpiochip_remove(&pp->gpio) != 0)
+ printk(KERN_WARNING "pl061_pci: GPIO is busy\n");
+
+ pl061_pci_debugfs_exit();
+
+ free_irq(gp->pdev->irq, pp);
+ kfree(pp);
+ sta2x11_mux_unregister(&pl061_driver);
+
+ return;
+}
+
+/* needs to be started after the sta2x11_mux driver */
+late_initcall(pl061_pci_init);
+module_exit(pl061_pci_exit);
+
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Wind River");
+MODULE_DESCRIPTION("pl061 GPIO driver for sta2x11");
diff --git a/drivers/gpio/pl061_pci.h b/drivers/gpio/pl061_pci.h
new file mode 100644
index 0000000..5360900
--- /dev/null
+++ b/drivers/gpio/pl061_pci.h
@@ -0,0 +1,29 @@
+/*
+ * linux/driver/gpio/pl061_pci.h, pl061 GPIO driver for ConneXt
+ *
+ * STMicroelectronics ConneXt (STA2X11/STA2X10) GPIO file
+ * derived from from linux/driver/gpio/pl061.c
+ *
+ * Copyright (c) 2009-2010 Wind River Systems, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+int pl061_pci_read_pdis(unsigned nr);
+int pl061_pci_read_afsela(unsigned nr);
+int pl061_pci_set_pdis(unsigned nr);
+int pl061_pci_set_afsela(unsigned nr);
+int pl061_pci_clear_pdis(unsigned nr);
+int pl061_pci_clear_afsela(unsigned nr);
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 0b591b6..3c9f207 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -390,6 +390,29 @@ config BMP085
To compile this driver as a module, choose M here: the
module will be called bmp085.
+config STA2X11_PCI_MUX
+ bool "STA2x11 PCI mux"
+ depends on PCI
+ help
+ The STMicroelectronics ConneXt (STA2x11)
+ chip has several unrelated functions in one PCI endpoint function.
+ This driver is a resource handler for the different drivers.
+
+config STA2X11_PCI_SCTL
+ bool "STA2x11 System control"
+ depends on STA2X11_PCI_MUX
+ help
+ The STMicroelectronics ConneXt (STA2x11) system control block.
+ Many ConneXt driver need this and it will be auto selected.
+
+config STA2X11_PCI_APBREG
+ bool "STA2x11 AHB-APB Bridge"
+ depends on STA2X11_PCI_MUX
+ help
+ The STMicroelectronics ConneXt (STA2x11) AHB-APB Bridge.
+ CAN/MLB and SaRaC ConneXt driver need this and it will
+ be auto selected.
+
source "drivers/misc/c2port/Kconfig"
source "drivers/misc/eeprom/Kconfig"
source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 255a80d..0af12b1 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -35,3 +35,6 @@ obj-y += eeprom/
obj-y += cb710/
obj-$(CONFIG_VMWARE_BALLOON) += vmware_balloon.o
obj-$(CONFIG_ARM_CHARLCD) += arm-charlcd.o
+obj-$(CONFIG_STA2X11_PCI_MUX) += sta2x11_mux.o
+obj-$(CONFIG_STA2X11_PCI_SCTL) += sta2x11_sctl.o
+obj-$(CONFIG_STA2X11_PCI_APBREG)+= sta2x11_apbreg.o
diff --git a/drivers/misc/sta2x11_apbreg.c b/drivers/misc/sta2x11_apbreg.c
new file mode 100644
index 0000000..92bee15
--- /dev/null
+++ b/drivers/misc/sta2x11_apbreg.c
@@ -0,0 +1,177 @@
+/*
+* Copyright (c) 2010 Wind River Systems, Inc.
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 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; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*
+*
+*/
+
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/bitops.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#include "sta2x11_mux.h"
+#include "sta2x11_apbreg.h"
+
+#define DRV_VERSION "1.0"
+
+static struct sta2x11_mux_driver sta2x11_apbreg = {
+ /* .suspend = sta2x11_apbreg_suspend, */
+ /* .resume = sta2x11_apbreg_resume, */
+};
+
+static DEFINE_SPINLOCK(my_lock);
+
+/**
+ * sta2x11_apbreg_write - Write a value to the APBREG register
+ * @reg: The APBREG register
+ * @value: The value to be written
+ */
+
+void sta2x11_apbreg_write(int reg, int value)
+{
+ writel(value, sta2x11_apbreg.reg_base1 + reg);
+}
+EXPORT_SYMBOL(sta2x11_apbreg_write);
+
+/**
+ * sta2x11_apbreg_read - Read the APBREG register
+ * @reg: The APBREG register
+ *
+ * Returns the value of the register after the bits has been
+ * cleared
+ */
+int sta2x11_apbreg_read(int reg)
+{
+ return readl(sta2x11_apbreg.reg_base1 + reg);
+}
+EXPORT_SYMBOL(sta2x11_apbreg_read);
+
+/**
+ * sta2x11_apbreg_set - Set the bits in the APBREG register.
+ * @reg: The APBREG register
+ * @value: The bits to be set
+ *
+ * The setting of bits are atomic. Returns the value of the
+ * register after the bits has been cleared
+ */
+int sta2x11_apbreg_set(int reg, int value)
+{
+ unsigned long flags;
+ int tmp;
+
+ spin_lock_irqsave(&my_lock, flags);
+
+ tmp = sta2x11_apbreg_read(reg);
+ tmp = tmp | value;
+ sta2x11_apbreg_write(reg, tmp);
+
+ spin_unlock_irqrestore(&my_lock, flags);
+ return tmp;
+}
+EXPORT_SYMBOL(sta2x11_apbreg_set);
+
+/**
+ * sta2x11_apbreg_clear - Clear the bits in the APBREG register.
+ * @reg: The APBREG register
+ * @value: The bits to be cleared
+ *
+ * The clearing of bits are atomic. Returns the value of the
+ * register after the bits has been cleared
+ */
+int sta2x11_apbreg_clear(int reg, int value)
+{
+ unsigned long flags;
+ int tmp;
+
+ spin_lock_irqsave(&my_lock, flags);
+
+ tmp = sta2x11_apbreg_read(reg);
+ tmp = tmp & ~value;
+ sta2x11_apbreg_write(reg, tmp);
+
+ spin_unlock_irqrestore(&my_lock, flags);
+ return tmp;
+}
+EXPORT_SYMBOL(sta2x11_apbreg_clear);
+
+#ifdef CONFIG_DEBUG_FS
+static int sta2x11_apbreg_show(struct seq_file *s, void *unused)
+{
+ seq_printf(s, "APBREG_BSR:\t0x%08x\n", sta2x11_apbreg_read(APBREG_BSR));
+ seq_printf(s, "APBREG_PAER:\t0x%08x\n",
+ sta2x11_apbreg_read(APBREG_PAER));
+ seq_printf(s, "APBREG_PWAC:\t0x%08x\n",
+ sta2x11_apbreg_read(APBREG_PWAC));
+ seq_printf(s, "APBREG_PRAC:\t0x%08x\n",
+ sta2x11_apbreg_read(APBREG_PRAC));
+ seq_printf(s, "APBREG_PCG:\t0x%08x\n", sta2x11_apbreg_read(APBREG_PCG));
+ seq_printf(s, "APBREG_PUR:\t0x%08x\n", sta2x11_apbreg_read(APBREG_PUR));
+ seq_printf(s, "APBREG_EMU_PCG:\t0x%08x\n",
+ sta2x11_apbreg_read(APBREG_EMU_PCG));
+ return 0;
+}
+
+static int sta2x11_apbreg_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, sta2x11_apbreg_show, NULL);
+}
+
+static const struct file_operations sta2x11_apbreg_operations = {
+ .open = sta2x11_apbreg_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init sta2x11_apbreg_debugfs_init(void)
+{
+ /* /sys/kernel/debug/sta2x11_apbreg */
+ (void)debugfs_create_file("sta2x11_apbreg", S_IFREG | S_IRUGO,
+ NULL, NULL, &sta2x11_apbreg_operations);
+ return 0;
+}
+
+late_initcall(sta2x11_apbreg_debugfs_init);
+
+#endif /* DEBUG_FS */
+
+static int sta2x11_apbreg_init(void)
+{
+ printk(KERN_INFO "sta2x11 system control driver init\n");
+ sta2x11_mux_register(&sta2x11_apbreg);
+
+ return 0;
+}
+
+static void sta2x11_apbreg_exit(void)
+{
+ printk(KERN_INFO "sta2x11 system control driver exit\n");
+ sta2x11_mux_unregister(&sta2x11_apbreg);
+}
+
+/* needs to be started after the sta2x11_mux driver */
+late_initcall(sta2x11_apbreg_init);
+module_exit(sta2x11_apbreg_exit);
+
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Wind River");
+MODULE_DESCRIPTION("AHB-APB Bridge for STA2X11");
diff --git a/drivers/misc/sta2x11_apbreg.h b/drivers/misc/sta2x11_apbreg.h
new file mode 100644
index 0000000..31f7dd3
--- /dev/null
+++ b/drivers/misc/sta2x11_apbreg.h
@@ -0,0 +1,39 @@
+/*
+* Copyright (c) 2010 Wind River Systems, Inc.
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 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; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*
+*/
+
+#ifndef __STA2X11_APBREG_H
+#define __STA2X11_APBREG_H
+
+#define APBREG_BSR 0x00 /* Bridge Status Register */
+#define APBREG_PAER 0x08 /* Peripherals Address Error Register */
+#define APBREG_PWAC 0x20 /* Peripheral Write Access Control register */
+#define APBREG_PRAC 0x40 /* Peripheral Read Access Control register */
+#define APBREG_PCG 0x60 /* Peripheral Clock Gating Register */
+#define APBREG_PUR 0x80 /* Peripheral Under Reset Register */
+#define APBREG_EMU_PCG 0xA0 /* Emulator Peripheral Clock Gating Register */
+
+#define APBREG_CAN (1 << 1)
+#define APBREG_SARAC (1 << 2)
+#define APBREG_MLB (1 << 3)
+
+void sta2x11_apbreg_write(int reg, int value);
+int sta2x11_apbreg_read(int reg);
+int sta2x11_apbreg_set(int reg, int value);
+int sta2x11_apbreg_clear(int reg, int value);
+
+#endif /* __STA2X11_APBREG_H */
diff --git a/drivers/misc/sta2x11_mux.c b/drivers/misc/sta2x11_mux.c
new file mode 100644
index 0000000..7cec797
--- /dev/null
+++ b/drivers/misc/sta2x11_mux.c
@@ -0,0 +1,265 @@
+/*
+* Copyright (c) 2009-2010 Wind River Systems, Inc.
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 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; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*
+*
+* The STMicroelectronics ConneXt (STA2X11)
+* chip has several unrelated functions in one PCI endpoint functions.
+*
+* This driver simply registers the iomemregion and keeps track of the
+* use of this region.
+*
+*/
+
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/bitops.h>
+
+#include <asm/sta2x11.h>
+#include "sta2x11_mux.h"
+
+#define DRV_VERSION "1.0"
+
+#define GPIO_SIZE (0x1000)
+#define SCTL_SIZE (0x1000)
+#define SCR_SIZE (0x1000)
+#define TIME_SIZE (0x1000)
+#define IOSPACE_SIZE (GPIO_SIZE*4 + SCTL_SIZE + SCR_SIZE + TIME_SIZE)
+
+static LIST_HEAD(user_list);
+static DEFINE_SPINLOCK(user_list_lock);
+
+static struct pci_dev *dev;
+static void __iomem *reg_base0;
+static void __iomem *reg_base1;
+
+/**
+ * sta2x11_mux_register - Register driver on the pci mux.
+ * @mux: Reference to the driver
+ *
+ * Gives access to pci device and register base address.
+ */
+int sta2x11_mux_register(struct sta2x11_mux_driver *mux)
+{
+
+ struct sta2x11_mux_driver *m;
+
+ if (!mux)
+ return -EINVAL;
+
+ BUG_ON(dev == NULL);
+
+ spin_lock(&user_list_lock);
+
+ /* already in list ? */
+ list_for_each_entry(m, &user_list, node) {
+ if (m == mux) {
+ spin_unlock(&user_list_lock);
+ return 0;
+ }
+ }
+
+ /*
+ * export the pci device to the caller
+ * use with care.
+ */
+ mux->pdev = dev;
+ mux->reg_base0 = reg_base0;
+ mux->reg_base1 = reg_base1;
+
+ list_add_tail(&mux->node, &user_list);
+ spin_unlock(&user_list_lock);
+
+ /*
+ * indicate that this module is in use
+ * so nobody can do a rmmod on us
+ */
+
+ return 0;
+}
+EXPORT_SYMBOL(sta2x11_mux_register);
+
+/**
+ * sta2x11_mux_unregister - Unregister the driver
+ * @mux: Reference to the driver
+ */
+int sta2x11_mux_unregister(struct sta2x11_mux_driver *mux)
+{
+ if (!mux)
+ return -EINVAL;
+
+ BUG_ON(dev == NULL);
+
+ spin_lock(&user_list_lock);
+ list_del(&mux->node);
+ spin_unlock(&user_list_lock);
+
+ return 0;
+}
+EXPORT_SYMBOL(sta2x11_mux_unregister);
+
+static int sta2x11_pci_mux_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct sta2x11_mux_driver *mux;
+
+ spin_lock(&user_list_lock);
+
+ list_for_each_entry(mux, &user_list, node) {
+ if (mux->suspend)
+ mux->suspend(mux, state);
+ }
+ spin_unlock(&user_list_lock);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ return 0;
+}
+
+static int sta2x11_pci_mux_resume(struct pci_dev *pdev)
+{
+ struct sta2x11_mux_driver *mux;
+ int err;
+
+ pci_set_power_state(pdev, 0);
+ err = pci_enable_device(pdev);
+ if (err)
+ return err;
+ pci_restore_state(pdev);
+
+ spin_lock(&user_list_lock);
+
+ list_for_each_entry(mux, &user_list, node) {
+ if (mux->resume)
+ mux->resume(mux);
+ }
+ spin_unlock(&user_list_lock);
+
+ return 0;
+}
+
+static int sta2x11_pci_mux_probe(struct pci_dev *pdev,
+ const struct pci_device_id *pci_id)
+{
+ int err;
+ err = pci_enable_device(pdev);
+ if (err) {
+ printk(KERN_ERR
+ "sta2x11_pci_mux_probe: Can't enable device.\n");
+ return err;
+ }
+
+ if (pci_resource_len(pdev, 0) < IOSPACE_SIZE) {
+ err = -ENOSPC;
+ goto err_disable;
+ }
+
+ if (pci_resource_len(pdev, 0) < IOSPACE_SIZE) {
+ err = -ENOSPC;
+ goto err_disable;
+ }
+ if (!request_mem_region(pci_resource_start(pdev, 0),
+ IOSPACE_SIZE, "sta2x11_pci_mux")) {
+ printk(KERN_WARNING
+ "sta2x11_pci_mux: Can't request iomem (0x%llx).\n",
+ (unsigned long long)pci_resource_start(pdev, 0));
+ err = -EBUSY;
+ goto err_disable;
+ }
+
+ if (!pdev->msi_enabled) {
+ err = pci_enable_msi(pdev);
+ if (err) {
+ printk(KERN_INFO
+ "sta2x11_pci_mux: Enable msi failed\n");
+ }
+ }
+
+ /* init register base */
+ reg_base0 = ioremap(pci_resource_start(pdev, 0), IOSPACE_SIZE);
+ if (!reg_base0) {
+ printk(KERN_ERR "sta2x11_pci_mux: ioremap(0) failed\n");
+ err = -EIO;
+ goto err_disable;
+ }
+ reg_base1 = ioremap(pci_resource_start(pdev, 1), IOSPACE_SIZE);
+ if (!reg_base1) {
+ printk(KERN_ERR "sta2x11_pci_mux: ioremap(1) failed\n");
+ err = -EIO;
+ goto err_disable;
+ }
+
+ dev = pdev;
+
+ return 0;
+
+err_disable:
+
+ pci_disable_device(pdev);
+ return err;
+}
+
+static void sta2x11_pci_mux_remove(struct pci_dev *pdev)
+{
+ dev = NULL;
+ iounmap(reg_base0);
+ iounmap(reg_base1);
+ pci_disable_msi(pdev);
+ release_mem_region(pci_resource_start(pdev, 0), IOSPACE_SIZE);
+ pci_disable_device(pdev);
+ return;
+}
+
+static struct pci_device_id sta2x11_pci_mux_tbl[] = {
+ {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_GPIO)},
+ {0,},
+};
+
+MODULE_DEVICE_TABLE(pci, sta2x11_pci_mux_tbl);
+
+static struct pci_driver sta2x11_pci_mux = {
+ .name = "sta2x11_pci_mux",
+ .id_table = sta2x11_pci_mux_tbl,
+ .probe = sta2x11_pci_mux_probe,
+ .remove = sta2x11_pci_mux_remove,
+ .suspend = sta2x11_pci_mux_suspend,
+ .resume = sta2x11_pci_mux_resume,
+};
+
+static int sta2x11_pci_mux_init(void)
+{
+ printk(KERN_INFO "sta2x11_mux driver init\n");
+ return pci_register_driver(&sta2x11_pci_mux);
+}
+
+module_init(sta2x11_pci_mux_init);
+
+static void sta2x11_pci_mux_exit(void)
+{
+ printk(KERN_INFO "sta2x11_mux driver exit\n");
+ pci_unregister_driver(&sta2x11_pci_mux);
+ return;
+}
+
+module_exit(sta2x11_pci_mux_exit);
+
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Wind River");
+MODULE_DESCRIPTION("STA2x11 PCI multiplexer for GPIO and System Controller");
diff --git a/drivers/misc/sta2x11_mux.h b/drivers/misc/sta2x11_mux.h
new file mode 100644
index 0000000..765a396
--- /dev/null
+++ b/drivers/misc/sta2x11_mux.h
@@ -0,0 +1,50 @@
+/*
+* Copyright (c) 2009-2010 Wind River Systems, Inc.
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 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; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*
+*
+* The STMicroelectronics ConneXt (STA2X11)
+* chip has several unrelated functions in one PCI endpoint functions.
+*
+* This driver simply registers the iomemregion and keeps track of the
+* use of this region.
+*
+*/
+
+#ifndef __STA2X11_MUX_H
+#define __STA2X11_MUX_H
+
+/*
+ * @struct sta2x11_mux_driver
+ *
+ * Gives the driver access to pcie device and register base
+ *
+ */
+struct sta2x11_mux_driver {
+ struct list_head node;
+ struct pci_dev *pdev; /* actual pci device */
+ void __iomem *reg_base0; /* virtual pointer0 */
+ void __iomem *reg_base1; /* virtual pointer1 */
+ void *priv; /* driver private */
+
+ /* callbacks from pci_driver */
+ int (*suspend) (struct sta2x11_mux_driver *dev, pm_message_t state);
+ int (*resume) (struct sta2x11_mux_driver *dev);
+};
+
+int sta2x11_mux_register(struct sta2x11_mux_driver *mux);
+int sta2x11_mux_unregister(struct sta2x11_mux_driver *mux);
+
+#endif /* __STA2X11_MUX_H */
diff --git a/drivers/misc/sta2x11_sctl.c b/drivers/misc/sta2x11_sctl.c
new file mode 100644
index 0000000..6fbe274
--- /dev/null
+++ b/drivers/misc/sta2x11_sctl.c
@@ -0,0 +1,189 @@
+/*
+* Copyright (c) 2009-2010 Wind River Systems, Inc.
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 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; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*
+*
+*/
+
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/bitops.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#include "sta2x11_mux.h"
+#include "sta2x11_sctl.h"
+
+#define DRV_VERSION "1.0"
+
+static DEFINE_SPINLOCK(my_lock);
+
+static struct sta2x11_mux_driver sta2x11_sctl = {
+ /* .suspend = sta2x11_sctl_suspend, */
+ /* .resume = sta2x11_sctl_resume, */
+};
+
+/**
+ * sta2x11_sctl_write - Write a value to the SCTL register
+ * @reg: The SCTL register
+ * @value: The value to be written
+ */
+
+void sta2x11_sctl_write(int reg, int value)
+{
+ writel(value, sta2x11_sctl.reg_base0 + SCTL_BASE + reg);
+}
+EXPORT_SYMBOL(sta2x11_sctl_write);
+
+/**
+ * sta2x11_sctl_read - Read the SCTL register
+ * @reg: The SCTL register
+ *
+ * Returns the value of the register after the bits has been
+ * cleared
+ */
+int sta2x11_sctl_read(int reg)
+{
+ return readl(sta2x11_sctl.reg_base0 + SCTL_BASE + reg);
+}
+EXPORT_SYMBOL(sta2x11_sctl_read);
+
+/**
+ * sta2x11_sctl_set - Set the bits in the SCTL register.
+ * @reg: The SCTL register
+ * @value: The bits to be set
+ *
+ * The setting of bits are atomic. Returns the value of the
+ * register after the bits has been cleared
+ */
+int sta2x11_sctl_set(int reg, int value)
+{
+ unsigned long flags;
+ int tmp;
+
+ spin_lock_irqsave(&my_lock, flags);
+
+ tmp = sta2x11_sctl_read(reg);
+ tmp = tmp | value;
+ sta2x11_sctl_write(reg, tmp);
+
+ spin_unlock_irqrestore(&my_lock, flags);
+ return tmp;
+}
+EXPORT_SYMBOL(sta2x11_sctl_set);
+
+/**
+ * sta2x11_sctl_clear - Clear the bits in the SCTL register.
+ * @reg: The SCTL register
+ * @value: The bits to be cleared
+ *
+ * The clearing of bits are atomic. Returns the value of the
+ * register after the bits has been cleared
+ */
+int sta2x11_sctl_clear(int reg, int value)
+{
+ unsigned long flags;
+ int tmp;
+
+ spin_lock_irqsave(&my_lock, flags);
+
+ tmp = sta2x11_sctl_read(reg);
+ tmp = tmp & ~value;
+ sta2x11_sctl_write(reg, tmp);
+
+ spin_unlock_irqrestore(&my_lock, flags);
+ return tmp;
+}
+EXPORT_SYMBOL(sta2x11_sctl_clear);
+
+#ifdef CONFIG_DEBUG_FS
+static int sta2x11_sctl_show(struct seq_file *s, void *unused)
+{
+ seq_printf(s, "SCCTL:\t\t0x%08x\n", sta2x11_sctl_read(SCCTL));
+ seq_printf(s, "ARMCFG:\t\t0x%08x\n", sta2x11_sctl_read(ARMCFG));
+ seq_printf(s, "SCPLLCTL:\t0x%08x\n", sta2x11_sctl_read(SCPLLCTL));
+ seq_printf(s, "SCPLLFCTRL:\t0x%08x\n", sta2x11_sctl_read(SCPLLFCTRL));
+ seq_printf(s, "SCRESFRACT:\t0x%08x\n", sta2x11_sctl_read(SCRESFRACT));
+ seq_printf(s, "SCRESCTRL1:\t0x%08x\n", sta2x11_sctl_read(SCRESCTRL1));
+ seq_printf(s, "SCRESXTRL2:\t0x%08x\n", sta2x11_sctl_read(SCRESXTRL2));
+ seq_printf(s, "SCPEREN0:\t0x%08x\n", sta2x11_sctl_read(SCPEREN0));
+ seq_printf(s, "SCPEREN1:\t0x%08x\n", sta2x11_sctl_read(SCPEREN1));
+ seq_printf(s, "SCPEREN2:\t0x%08x\n", sta2x11_sctl_read(SCPEREN2));
+ seq_printf(s, "SCGRST:\t\t0x%08x\n", sta2x11_sctl_read(SCGRST));
+ seq_printf(s, "SCPCIPMCR1:\t0x%08x\n", sta2x11_sctl_read(SCPCIPMCR1));
+ seq_printf(s, "SCPCIPMCR2:\t0x%08x\n", sta2x11_sctl_read(SCPCIPMCR2));
+ seq_printf(s, "SCPCIPMSR1:\t0x%08x\n", sta2x11_sctl_read(SCPCIPMSR1));
+ seq_printf(s, "SCPCIPMSR2:\t0x%08x\n", sta2x11_sctl_read(SCPCIPMSR2));
+ seq_printf(s, "SCPCIPMSR3:\t0x%08x\n", sta2x11_sctl_read(SCPCIPMSR3));
+ seq_printf(s, "SCINTREN:\t0x%08x\n", sta2x11_sctl_read(SCINTREN));
+ seq_printf(s, "SCRISR:\t\t0x%08x\n", sta2x11_sctl_read(SCRISR));
+ seq_printf(s, "SCCLKSTAT0:\t0x%08x\n", sta2x11_sctl_read(SCCLKSTAT0));
+ seq_printf(s, "SCCLKSTAT1:\t0x%08x\n", sta2x11_sctl_read(SCCLKSTAT1));
+ seq_printf(s, "SCCLKSTAT2:\t0x%08x\n", sta2x11_sctl_read(SCCLKSTAT2));
+ seq_printf(s, "SCRSTSTA:\t0x%08x\n", sta2x11_sctl_read(SCRSTSTA));
+
+ return 0;
+}
+
+static int sta2x11_sctl_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, sta2x11_sctl_show, NULL);
+}
+
+static const struct file_operations sta2x11_sctl_operations = {
+ .open = sta2x11_sctl_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init sta2x11_sctl_debugfs_init(void)
+{
+ /* /sys/kernel/debug/sta2x11_sctl */
+ (void)debugfs_create_file("sta2x11_sctl", S_IFREG | S_IRUGO,
+ NULL, NULL, &sta2x11_sctl_operations);
+ return 0;
+}
+
+late_initcall(sta2x11_sctl_debugfs_init);
+
+#endif /* DEBUG_FS */
+
+static int sta2x11_sctl_init(void)
+{
+ printk(KERN_INFO "sta2x11 system control driver init\n");
+ sta2x11_mux_register(&sta2x11_sctl);
+
+ return 0;
+}
+
+static void sta2x11_sctl_exit(void)
+{
+ printk(KERN_INFO "sta2x11 system control driver exit\n");
+ sta2x11_mux_unregister(&sta2x11_sctl);
+}
+
+/* needs to be started after the sta2x11_mux driver */
+late_initcall(sta2x11_sctl_init);
+module_exit(sta2x11_sctl_exit);
+
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Wind River");
+MODULE_DESCRIPTION("System control for STA2X11");
diff --git a/drivers/misc/sta2x11_sctl.h b/drivers/misc/sta2x11_sctl.h
new file mode 100644
index 0000000..9ee860b
--- /dev/null
+++ b/drivers/misc/sta2x11_sctl.h
@@ -0,0 +1,143 @@
+/*
+* Copyright (c) 2009-2010 Wind River Systems, Inc.
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 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; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*
+*/
+
+#ifndef __STA2X11_SCTL_H
+#define __STA2X11_SCTL_H
+
+#define GPIO_SIZE (0x1000)
+#define SCTL_SIZE (0x1000)
+#define SCR_SIZE (0x1000)
+#define TIME_SIZE (0x1000)
+#define IOSPACE_SIZE (GPIO_SIZE*4 + SCTL_SIZE + SCR_SIZE + TIME_SIZE)
+
+#define SCTL_BASE (GPIO_SIZE*4)
+
+#define SCCTL 0x0 /* System controller control register */
+#define ARMCFG 0x4 /* ARM configuration register */
+#define SCPLLCTL 0x8 /* PLL control status register */
+#define SCPLLFCTRL 0xc /* PLL frequency control register */
+#define SCRESFRACT 0x10 /* PLL fractional input register */
+#define SCRESCTRL1 0x14 /* Peripheral reset control 1 */
+#define SCRESXTRL2 0x18 /* Peripheral reset control 2 */
+#define SCPEREN0 0x1c /* Peripheral clock enable register 0 */
+#define SCPEREN1 0x20 /* Peripheral clock enable register 1 */
+#define SCPEREN2 0x24 /* Peripheral clock enable register 2 */
+#define SCGRST 0x28 /* Peripheral global reset */
+#define SCPCIPMCR1 0x30 /* PCI power management control 1 */
+#define SCPCIPMCR2 0x34 /* PCI power management control 2 */
+#define SCPCIPMSR1 0x38 /* PCI power management status 1 */
+#define SCPCIPMSR2 0x3c /* PCI power management status 2 */
+#define SCPCIPMSR3 0x40 /* PCI power management status 3 */
+#define SCINTREN 0x44 /* Interrupt enable */
+#define SCRISR 0x48 /* RAW interrupt status */
+#define SCCLKSTAT0 0x4c /* Peripheral clocks status 0 */
+#define SCCLKSTAT1 0x50 /* Peripheral clocks status 1 */
+#define SCCLKSTAT2 0x54 /* Peripheral clocks status 2 */
+#define SCRSTSTA 0x58 /* Reset status register */
+
+#define SCRESCTRL1_USB_PHY_POR (1 << 0)
+#define SCRESCTRL1_USB_OTG (1 << 1)
+#define SCRESCTRL1_USB_HRST (1 << 2)
+#define SCRESCTRL1_USB_PHY_HOST (1 << 3)
+#define SCRESCTRL1_SATAII (1 << 4)
+#define SCRESCTRL1_VIP (1 << 5)
+#define SCRESCTRL1_PER_MMC0 (1 << 6)
+#define SCRESCTRL1_PER_MMC1 (1 << 7)
+#define SCRESCTRL1_PER_GPIO0 (1 << 8)
+#define SCRESCTRL1_PER_GPIO1 (1 << 9)
+#define SCRESCTRL1_PER_GPIO2 (1 << 10)
+#define SCRESCTRL1_PER_GPIO3 (1 << 11)
+#define SCRESCTRL1_PER_MTU0 (1 << 12)
+#define SCRESCTRL1_KER_SPI0 (1 << 13)
+#define SCRESCTRL1_KER_SPI1 (1 << 14)
+#define SCRESCTRL1_KER_SPI2 (1 << 15)
+#define SCRESCTRL1_KER_MCI0 (1 << 16)
+#define SCRESCTRL1_KER_MCI1 (1 << 17)
+#define SCRESCTRL1_PRE_HSI2C0 (1 << 18)
+#define SCRESCTRL1_PER_HSI2C1 (1 << 19)
+#define SCRESCTRL1_PER_HSI2C2 (1 << 20)
+#define SCRESCTRL1_PER_HSI2C3 (1 << 21)
+#define SCRESCTRL1_PER_MSP0 (1 << 22)
+#define SCRESCTRL1_PER_MSP1 (1 << 23)
+#define SCRESCTRL1_PER_MSP2 (1 << 24)
+#define SCRESCTRL1_PER_MSP3 (1 << 25)
+#define SCRESCTRL1_PER_MSP4 (1 << 26)
+#define SCRESCTRL1_PER_MSP5 (1 << 27)
+#define SCRESCTRL1_PER_MMC (1 << 28)
+#define SCRESCTRL1_KER_MSP0 (1 << 29)
+#define SCRESCTRL1_KER_MSP1 (1 << 30)
+#define SCRESCTRL1_KER_MSP2 (1 << 31)
+
+#define SCPEREN0_UART0 (1 << 0)
+#define SCPEREN0_UART1 (1 << 1)
+#define SCPEREN0_UART2 (1 << 2)
+#define SCPEREN0_UART3 (1 << 3)
+#define SCPEREN0_MSP0 (1 << 4)
+#define SCPEREN0_MSP1 (1 << 5)
+#define SCPEREN0_MSP2 (1 << 6)
+#define SCPEREN0_MSP3 (1 << 7)
+#define SCPEREN0_MSP4 (1 << 8)
+#define SCPEREN0_MSP5 (1 << 9)
+#define SCPEREN0_SPI0 (1 << 10)
+#define SCPEREN0_SPI1 (1 << 11)
+#define SCPEREN0_SPI2 (1 << 12)
+#define SCPEREN0_I2C0 (1 << 13)
+#define SCPEREN0_I2C1 (1 << 14)
+#define SCPEREN0_I2C2 (1 << 15)
+#define SCPEREN0_I2C3 (1 << 16)
+#define SCPEREN0_SVDO_LVDS (1 << 17)
+#define SCPEREN0_USB_HOST (1 << 18)
+#define SCPEREN0_USB_OTG (1 << 19)
+#define SCPEREN0_MCI0 (1 << 20)
+#define SCPEREN0_MCI1 (1 << 21)
+#define SCPEREN0_MCI2 (1 << 22)
+#define SCPEREN0_MCI3 (1 << 23)
+#define SCPEREN0_SATA (1 << 24)
+#define SCPEREN0_ETHERNET (1 << 25)
+#define SCPEREN0_VIC (1 << 26)
+#define SCPEREN0_DMA_AUDIO (1 << 27)
+#define SCPEREN0_DMA_SOC (1 << 28)
+#define SCPEREN0_RAM (1 << 29)
+#define SCPEREN0_VIP (1 << 30)
+#define SCPEREN0_ARM (1 << 31)
+
+#define SCPEREN1_UART0 (1 << 0)
+#define SCPEREN1_UART1 (1 << 1)
+#define SCPEREN1_UART2 (1 << 2)
+#define SCPEREN1_UART3 (1 << 3)
+#define SCPEREN1_MSP0 (1 << 4)
+#define SCPEREN1_MSP1 (1 << 5)
+#define SCPEREN1_MSP2 (1 << 6)
+#define SCPEREN1_MSP3 (1 << 7)
+#define SCPEREN1_MSP4 (1 << 8)
+#define SCPEREN1_MSP5 (1 << 9)
+#define SCPEREN1_SPI0 (1 << 10)
+#define SCPEREN1_SPI1 (1 << 11)
+#define SCPEREN1_SPI2 (1 << 12)
+#define SCPEREN1_I2C0 (1 << 13)
+#define SCPEREN1_I2C1 (1 << 14)
+#define SCPEREN1_I2C2 (1 << 15)
+#define SCPEREN1_I2C3 (1 << 16)
+#define SCPEREN1_USB_PHY (1 << 17)
+
+void sta2x11_sctl_write(int reg, int value);
+int sta2x11_sctl_read(int reg);
+int sta2x11_sctl_set(int reg, int value);
+int sta2x11_sctl_clear(int reg, int value);
+
+#endif /* __STA2X11_SCTL_H */
--
1.7.0.5
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