Merge branch 'linus' into stackprotector

Conflicts:
	arch/x86/kernel/Makefile
	include/asm-x86/pda.h

9 files changed, 368 insertions, 300 deletions

diff --git a/arch/mips/pmc-sierra/msp71xx/Makefile b/arch/mips/pmc-sierra/msp71xx/Makefile
index 4bba79c1cc7..e107f79b149 100644
--- a/arch/mips/pmc-sierra/msp71xx/Makefile
+++ b/arch/mips/pmc-sierra/msp71xx/Makefile
@@ -3,6 +3,7 @@
 #
 obj-y += msp_prom.o msp_setup.o msp_irq.o \
 	 msp_time.o msp_serial.o msp_elb.o
+obj-$(CONFIG_HAVE_GPIO_LIB) += gpio.o gpio_extended.o
 obj-$(CONFIG_PMC_MSP7120_GW) += msp_hwbutton.o
 obj-$(CONFIG_IRQ_MSP_SLP) += msp_irq_slp.o
 obj-$(CONFIG_IRQ_MSP_CIC) += msp_irq_cic.o
diff --git a/arch/mips/pmc-sierra/msp71xx/gpio.c b/arch/mips/pmc-sierra/msp71xx/gpio.c
new file mode 100644
index 00000000000..69848c5813e
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/gpio.c
@@ -0,0 +1,218 @@
+/*
+ * @file /arch/mips/pmc-sierra/msp71xx/gpio.c
+ *
+ * Generic PMC MSP71xx GPIO handling. These base gpio are controlled by two
+ * types of registers. The data register sets the output level when in output
+ * mode and when in input mode will contain the value at the input. The config
+ * register sets the various modes for each gpio.
+ *
+ * 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.
+ *
+ * @author Patrick Glass <patrickglass@gmail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+
+#define MSP71XX_CFG_OFFSET(gpio)	(4 * (gpio))
+#define CONF_MASK			0x0F
+#define MSP71XX_GPIO_INPUT		0x01
+#define MSP71XX_GPIO_OUTPUT		0x08
+
+#define MSP71XX_GPIO_BASE		0x0B8400000L
+
+#define to_msp71xx_gpio_chip(c) container_of(c, struct msp71xx_gpio_chip, chip)
+
+static spinlock_t gpio_lock;
+
+/*
+ * struct msp71xx_gpio_chip - container for gpio chip and registers
+ * @chip: chip structure for the specified gpio bank
+ * @data_reg: register for reading and writing the gpio pin value
+ * @config_reg: register to set the mode for the gpio pin bank
+ * @out_drive_reg: register to set the output drive mode for the gpio pin bank
+ */
+struct msp71xx_gpio_chip {
+	struct gpio_chip chip;
+	void __iomem *data_reg;
+	void __iomem *config_reg;
+	void __iomem *out_drive_reg;
+};
+
+/*
+ * msp71xx_gpio_get() - return the chip's gpio value
+ * @chip: chip structure which controls the specified gpio
+ * @offset: gpio whose value will be returned
+ *
+ * It will return 0 if gpio value is low and other if high.
+ */
+static int msp71xx_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct msp71xx_gpio_chip *msp_chip = to_msp71xx_gpio_chip(chip);
+
+	return __raw_readl(msp_chip->data_reg) & (1 << offset);
+}
+
+/*
+ * msp71xx_gpio_set() - set the output value for the gpio
+ * @chip: chip structure who controls the specified gpio
+ * @offset: gpio whose value will be assigned
+ * @value: logic level to assign to the gpio initially
+ *
+ * This will set the gpio bit specified to the desired value. It will set the
+ * gpio pin low if value is 0 otherwise it will be high.
+ */
+static void msp71xx_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct msp71xx_gpio_chip *msp_chip = to_msp71xx_gpio_chip(chip);
+	unsigned long flags;
+	u32 data;
+
+	spin_lock_irqsave(&gpio_lock, flags);
+
+	data = __raw_readl(msp_chip->data_reg);
+	if (value)
+		data |= (1 << offset);
+	else
+		data &= ~(1 << offset);
+	__raw_writel(data, msp_chip->data_reg);
+
+	spin_unlock_irqrestore(&gpio_lock, flags);
+}
+
+/*
+ * msp71xx_set_gpio_mode() - declare the mode for a gpio
+ * @chip: chip structure which controls the specified gpio
+ * @offset: gpio whose value will be assigned
+ * @mode: desired configuration for the gpio (see datasheet)
+ *
+ * It will set the gpio pin config to the @mode value passed in.
+ */
+static int msp71xx_set_gpio_mode(struct gpio_chip *chip,
+				 unsigned offset, int mode)
+{
+	struct msp71xx_gpio_chip *msp_chip = to_msp71xx_gpio_chip(chip);
+	const unsigned bit_offset = MSP71XX_CFG_OFFSET(offset);
+	unsigned long flags;
+	u32 cfg;
+
+	spin_lock_irqsave(&gpio_lock, flags);
+
+	cfg = __raw_readl(msp_chip->config_reg);
+	cfg &= ~(CONF_MASK << bit_offset);
+	cfg |= (mode << bit_offset);
+	__raw_writel(cfg, msp_chip->config_reg);
+
+	spin_unlock_irqrestore(&gpio_lock, flags);
+
+	return 0;
+}
+
+/*
+ * msp71xx_direction_output() - declare the direction mode for a gpio
+ * @chip: chip structure which controls the specified gpio
+ * @offset: gpio whose value will be assigned
+ * @value: logic level to assign to the gpio initially
+ *
+ * This call will set the mode for the @gpio to output. It will set the
+ * gpio pin low if value is 0 otherwise it will be high.
+ */
+static int msp71xx_direction_output(struct gpio_chip *chip,
+				    unsigned offset, int value)
+{
+	msp71xx_gpio_set(chip, offset, value);
+
+	return msp71xx_set_gpio_mode(chip, offset, MSP71XX_GPIO_OUTPUT);
+}
+
+/*
+ * msp71xx_direction_input() - declare the direction mode for a gpio
+ * @chip: chip structure which controls the specified gpio
+ * @offset: gpio whose to which the value will be assigned
+ *
+ * This call will set the mode for the @gpio to input.
+ */
+static int msp71xx_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	return msp71xx_set_gpio_mode(chip, offset, MSP71XX_GPIO_INPUT);
+}
+
+/*
+ * msp71xx_set_output_drive() - declare the output drive for the gpio line
+ * @gpio: gpio pin whose output drive you wish to modify
+ * @value: zero for active drain 1 for open drain drive
+ *
+ * This call will set the output drive mode for the @gpio to output.
+ */
+int msp71xx_set_output_drive(unsigned gpio, int value)
+{
+	unsigned long flags;
+	u32 data;
+
+	if (gpio > 15 || gpio < 0)
+		return -EINVAL;
+
+	spin_lock_irqsave(&gpio_lock, flags);
+
+	data = __raw_readl((void __iomem *)(MSP71XX_GPIO_BASE + 0x190));
+	if (value)
+		data |= (1 << gpio);
+	else
+		data &= ~(1 << gpio);
+	__raw_writel(data, (void __iomem *)(MSP71XX_GPIO_BASE + 0x190));
+
+	spin_unlock_irqrestore(&gpio_lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL(msp71xx_set_output_drive);
+
+#define MSP71XX_GPIO_BANK(name, dr, cr, base_gpio, num_gpio) \
+{ \
+	.chip = { \
+		.label		  = name, \
+		.direction_input  = msp71xx_direction_input, \
+		.direction_output = msp71xx_direction_output, \
+		.get		  = msp71xx_gpio_get, \
+		.set		  = msp71xx_gpio_set, \
+		.base		  = base_gpio, \
+		.ngpio		  = num_gpio \
+	}, \
+	.data_reg	= (void __iomem *)(MSP71XX_GPIO_BASE + dr), \
+	.config_reg	= (void __iomem *)(MSP71XX_GPIO_BASE + cr), \
+	.out_drive_reg	= (void __iomem *)(MSP71XX_GPIO_BASE + 0x190), \
+}
+
+/*
+ * struct msp71xx_gpio_banks[] - container array of gpio banks
+ * @chip: chip structure for the specified gpio bank
+ * @data_reg: register for reading and writing the gpio pin value
+ * @config_reg: register to set the mode for the gpio pin bank
+ *
+ * This array structure defines the gpio banks for the PMC MIPS Processor.
+ * We specify the bank name, the data register, the config register, base
+ * starting gpio number, and the number of gpios exposed by the bank.
+ */
+static struct msp71xx_gpio_chip msp71xx_gpio_banks[] = {
+
+	MSP71XX_GPIO_BANK("GPIO_1_0", 0x170, 0x180, 0, 2),
+	MSP71XX_GPIO_BANK("GPIO_5_2", 0x174, 0x184, 2, 4),
+	MSP71XX_GPIO_BANK("GPIO_9_6", 0x178, 0x188, 6, 4),
+	MSP71XX_GPIO_BANK("GPIO_15_10", 0x17C, 0x18C, 10, 6),
+};
+
+void __init msp71xx_init_gpio(void)
+{
+	int i;
+
+	spin_lock_init(&gpio_lock);
+
+	for (i = 0; i < ARRAY_SIZE(msp71xx_gpio_banks); i++)
+		gpiochip_add(&msp71xx_gpio_banks[i].chip);
+}
diff --git a/arch/mips/pmc-sierra/msp71xx/gpio_extended.c b/arch/mips/pmc-sierra/msp71xx/gpio_extended.c
new file mode 100644
index 00000000000..fc6dbc6cf1c
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/gpio_extended.c
@@ -0,0 +1,148 @@
+/*
+ * @file /arch/mips/pmc-sierra/msp71xx/gpio_extended.c
+ *
+ * Generic PMC MSP71xx EXTENDED (EXD) GPIO handling. The extended gpio is
+ * a set of hardware registers that have no need for explicit locking as
+ * it is handled by unique method of writing individual set/clr bits.
+ *
+ * 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.
+ *
+ * @author Patrick Glass <patrickglass@gmail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+
+#define MSP71XX_DATA_OFFSET(gpio)	(2 * (gpio))
+#define MSP71XX_READ_OFFSET(gpio)	(MSP71XX_DATA_OFFSET(gpio) + 1)
+#define MSP71XX_CFG_OUT_OFFSET(gpio)	(MSP71XX_DATA_OFFSET(gpio) + 16)
+#define MSP71XX_CFG_IN_OFFSET(gpio)	(MSP71XX_CFG_OUT_OFFSET(gpio) + 1)
+
+#define MSP71XX_EXD_GPIO_BASE	0x0BC000000L
+
+#define to_msp71xx_exd_gpio_chip(c) \
+			container_of(c, struct msp71xx_exd_gpio_chip, chip)
+
+/*
+ * struct msp71xx_exd_gpio_chip - container for gpio chip and registers
+ * @chip: chip structure for the specified gpio bank
+ * @reg: register for control and data of gpio pin
+ */
+struct msp71xx_exd_gpio_chip {
+	struct gpio_chip chip;
+	void __iomem *reg;
+};
+
+/*
+ * msp71xx_exd_gpio_get() - return the chip's gpio value
+ * @chip: chip structure which controls the specified gpio
+ * @offset: gpio whose value will be returned
+ *
+ * It will return 0 if gpio value is low and other if high.
+ */
+static int msp71xx_exd_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct msp71xx_exd_gpio_chip *msp71xx_chip =
+	    to_msp71xx_exd_gpio_chip(chip);
+	const unsigned bit = MSP71XX_READ_OFFSET(offset);
+
+	return __raw_readl(msp71xx_chip->reg) & (1 << bit);
+}
+
+/*
+ * msp71xx_exd_gpio_set() - set the output value for the gpio
+ * @chip: chip structure who controls the specified gpio
+ * @offset: gpio whose value will be assigned
+ * @value: logic level to assign to the gpio initially
+ *
+ * This will set the gpio bit specified to the desired value. It will set the
+ * gpio pin low if value is 0 otherwise it will be high.
+ */
+static void msp71xx_exd_gpio_set(struct gpio_chip *chip,
+				 unsigned offset, int value)
+{
+	struct msp71xx_exd_gpio_chip *msp71xx_chip =
+	    to_msp71xx_exd_gpio_chip(chip);
+	const unsigned bit = MSP71XX_DATA_OFFSET(offset);
+
+	__raw_writel(1 << (bit + (value ? 1 : 0)), msp71xx_chip->reg);
+}
+
+/*
+ * msp71xx_exd_direction_output() - declare the direction mode for a gpio
+ * @chip: chip structure which controls the specified gpio
+ * @offset: gpio whose value will be assigned
+ * @value: logic level to assign to the gpio initially
+ *
+ * This call will set the mode for the @gpio to output. It will set the
+ * gpio pin low if value is 0 otherwise it will be high.
+ */
+static int msp71xx_exd_direction_output(struct gpio_chip *chip,
+					unsigned offset, int value)
+{
+	struct msp71xx_exd_gpio_chip *msp71xx_chip =
+	    to_msp71xx_exd_gpio_chip(chip);
+
+	msp71xx_exd_gpio_set(chip, offset, value);
+	__raw_writel(1 << MSP71XX_CFG_OUT_OFFSET(offset), msp71xx_chip->reg);
+	return 0;
+}
+
+/*
+ * msp71xx_exd_direction_input() - declare the direction mode for a gpio
+ * @chip: chip structure which controls the specified gpio
+ * @offset: gpio whose to which the value will be assigned
+ *
+ * This call will set the mode for the @gpio to input.
+ */
+static int msp71xx_exd_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	struct msp71xx_exd_gpio_chip *msp71xx_chip =
+	    to_msp71xx_exd_gpio_chip(chip);
+
+	__raw_writel(1 << MSP71XX_CFG_IN_OFFSET(offset), msp71xx_chip->reg);
+	return 0;
+}
+
+#define MSP71XX_EXD_GPIO_BANK(name, exd_reg, base_gpio, num_gpio) \
+{ \
+	.chip = { \
+		.label		  = name, \
+		.direction_input  = msp71xx_exd_direction_input, \
+		.direction_output = msp71xx_exd_direction_output, \
+		.get		  = msp71xx_exd_gpio_get, \
+		.set		  = msp71xx_exd_gpio_set, \
+		.base		  = base_gpio, \
+		.ngpio		  = num_gpio, \
+	}, \
+	.reg	= (void __iomem *)(MSP71XX_EXD_GPIO_BASE + exd_reg), \
+}
+
+/*
+ * struct msp71xx_exd_gpio_banks[] - container array of gpio banks
+ * @chip: chip structure for the specified gpio bank
+ * @reg: register for reading and writing the gpio pin value
+ *
+ * This array structure defines the extended gpio banks for the
+ * PMC MIPS Processor. We specify the bank name, the data/config
+ * register,the base starting gpio number, and the number of
+ * gpios exposed by the bank of gpios.
+ */
+static struct msp71xx_exd_gpio_chip msp71xx_exd_gpio_banks[] = {
+
+	MSP71XX_EXD_GPIO_BANK("GPIO_23_16", 0x188, 16, 8),
+	MSP71XX_EXD_GPIO_BANK("GPIO_27_24", 0x18C, 24, 4),
+};
+
+void __init msp71xx_init_gpio_extended(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(msp71xx_exd_gpio_banks); i++)
+		gpiochip_add(&msp71xx_exd_gpio_banks[i].chip);
+}
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_serial.c b/arch/mips/pmc-sierra/msp71xx/msp_serial.c
index 9de34302e5f..f7261628d8a 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_serial.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_serial.c
@@ -38,68 +38,6 @@
 #include <msp_int.h>
 #include <msp_regs.h>
 
-#ifdef CONFIG_KGDB
-/*
- * kgdb uses serial port 1 so the console can remain on port 0.
- * To use port 0 change the definition to read as follows:
- * #define DEBUG_PORT_BASE KSEG1ADDR(MSP_UART0_BASE)
- */
-#define DEBUG_PORT_BASE KSEG1ADDR(MSP_UART1_BASE)
-
-int putDebugChar(char c)
-{
-	volatile uint32_t *uart = (volatile uint32_t *)DEBUG_PORT_BASE;
-	uint32_t val = (uint32_t)c;
-
-	local_irq_disable();
-	while( !(uart[5] & 0x20) ); /* Wait for TXRDY */
-	uart[0] = val;
-	while( !(uart[5] & 0x20) ); /* Wait for TXRDY */
-	local_irq_enable();
-
-	return 1;
-}
-
-char getDebugChar(void)
-{
-	volatile uint32_t *uart = (volatile uint32_t *)DEBUG_PORT_BASE;
-	uint32_t val;
-
-	while( !(uart[5] & 0x01) ); /* Wait for RXRDY */
-	val = uart[0];
-
-	return (char)val;
-}
-
-void initDebugPort(unsigned int uartclk, unsigned int baudrate)
-{
-	unsigned int baud_divisor = (uartclk + 8 * baudrate)/(16 * baudrate);
-
-	/* Enable FIFOs */
-	writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR |
-			UART_FCR_CLEAR_XMIT | UART_FCR_TRIGGER_4,
-		(char *)DEBUG_PORT_BASE + (UART_FCR * 4));
-
-	/* Select brtc divisor */
-	writeb(UART_LCR_DLAB, (char *)DEBUG_PORT_BASE + (UART_LCR * 4));
-
-	/* Store divisor lsb */
-	writeb(baud_divisor, (char *)DEBUG_PORT_BASE + (UART_TX * 4));
-
-	/* Store divisor msb */
-	writeb(baud_divisor >> 8, (char *)DEBUG_PORT_BASE + (UART_IER * 4));
-
-	/* Set 8N1 mode */
-	writeb(UART_LCR_WLEN8, (char *)DEBUG_PORT_BASE + (UART_LCR * 4));
-
-	/* Disable flow control */
-	writeb(0, (char *)DEBUG_PORT_BASE + (UART_MCR * 4));
-
-	/* Disable receive interrupt(!) */
-	writeb(0, (char *)DEBUG_PORT_BASE + (UART_IER * 4));
-}
-#endif
-
 void __init msp_serial_setup(void)
 {
 	char    *s;
@@ -139,17 +77,6 @@ void __init msp_serial_setup(void)
 		case MACH_MSP7120_FPGA:
 			/* Enable UART1 on MSP4200 and MSP7120 */
 			*GPIO_CFG2_REG = 0x00002299;
-
-#ifdef CONFIG_KGDB
-			/* Initialize UART1 for kgdb since PMON doesn't */
-			if( DEBUG_PORT_BASE == KSEG1ADDR(MSP_UART1_BASE) ) {
-				if( mips_machtype == MACH_MSP4200_FPGA
-				 || mips_machtype == MACH_MSP7120_FPGA )
-					initDebugPort(uartclk, 19200);
-				else
-					initDebugPort(uartclk, 57600);
-			}
-#endif
 			break;
 
 		default:
diff --git a/arch/mips/pmc-sierra/yosemite/Makefile b/arch/mips/pmc-sierra/yosemite/Makefile
index 8fd9a04e353..b16f95c3df6 100644
--- a/arch/mips/pmc-sierra/yosemite/Makefile
+++ b/arch/mips/pmc-sierra/yosemite/Makefile
@@ -4,7 +4,6 @@
 
 obj-y    += irq.o prom.o py-console.o setup.o
 
-obj-$(CONFIG_KGDB)		+= dbg_io.o
 obj-$(CONFIG_SMP)		+= smp.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/pmc-sierra/yosemite/dbg_io.c b/arch/mips/pmc-sierra/yosemite/dbg_io.c
deleted file mode 100644
index 6362c702e38..00000000000
--- a/arch/mips/pmc-sierra/yosemite/dbg_io.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * Copyright 2003 PMC-Sierra
- * Author: Manish Lachwani (lachwani@pmc-sierra.com)
- *
- *  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;  either version 2 of the  License, or (at your
- *  option) any later version.
- *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  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.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * Support for KGDB for the Yosemite board. We make use of single serial
- * port to be used for KGDB as well as console. The second serial port
- * seems to be having a problem. Single IRQ is allocated for both the
- * ports. Hence, the interrupt routing code needs to figure out whether
- * the interrupt came from channel A or B.
- */
-
-#include <asm/serial.h>
-
-/*
- * Baud rate, Parity, Data and Stop bit settings for the
- * serial port on the Yosemite. Note that the Early printk
- * patch has been added. So, we should be all set to go
- */
-#define	YOSEMITE_BAUD_2400	2400
-#define	YOSEMITE_BAUD_4800	4800
-#define	YOSEMITE_BAUD_9600	9600
-#define	YOSEMITE_BAUD_19200	19200
-#define	YOSEMITE_BAUD_38400	38400
-#define	YOSEMITE_BAUD_57600	57600
-#define	YOSEMITE_BAUD_115200	115200
-
-#define	YOSEMITE_PARITY_NONE	0
-#define	YOSEMITE_PARITY_ODD	0x08
-#define	YOSEMITE_PARITY_EVEN	0x18
-#define	YOSEMITE_PARITY_MARK	0x28
-#define	YOSEMITE_PARITY_SPACE	0x38
-
-#define	YOSEMITE_DATA_5BIT	0x0
-#define	YOSEMITE_DATA_6BIT	0x1
-#define	YOSEMITE_DATA_7BIT	0x2
-#define	YOSEMITE_DATA_8BIT	0x3
-
-#define	YOSEMITE_STOP_1BIT	0x0
-#define	YOSEMITE_STOP_2BIT	0x4
-
-/* This is crucial */
-#define	SERIAL_REG_OFS		0x1
-
-#define	SERIAL_RCV_BUFFER	0x0
-#define	SERIAL_TRANS_HOLD	0x0
-#define	SERIAL_SEND_BUFFER	0x0
-#define	SERIAL_INTR_ENABLE	(1 * SERIAL_REG_OFS)
-#define	SERIAL_INTR_ID		(2 * SERIAL_REG_OFS)
-#define	SERIAL_DATA_FORMAT	(3 * SERIAL_REG_OFS)
-#define	SERIAL_LINE_CONTROL	(3 * SERIAL_REG_OFS)
-#define	SERIAL_MODEM_CONTROL	(4 * SERIAL_REG_OFS)
-#define	SERIAL_RS232_OUTPUT	(4 * SERIAL_REG_OFS)
-#define	SERIAL_LINE_STATUS	(5 * SERIAL_REG_OFS)
-#define	SERIAL_MODEM_STATUS	(6 * SERIAL_REG_OFS)
-#define	SERIAL_RS232_INPUT	(6 * SERIAL_REG_OFS)
-#define	SERIAL_SCRATCH_PAD	(7 * SERIAL_REG_OFS)
-
-#define	SERIAL_DIVISOR_LSB	(0 * SERIAL_REG_OFS)
-#define	SERIAL_DIVISOR_MSB	(1 * SERIAL_REG_OFS)
-
-/*
- * Functions to READ and WRITE to serial port 0
- */
-#define	SERIAL_READ(ofs)		(*((volatile unsigned char*)	\
-					(TITAN_SERIAL_BASE + ofs)))
-
-#define	SERIAL_WRITE(ofs, val)		((*((volatile unsigned char*)	\
-					(TITAN_SERIAL_BASE + ofs))) = val)
-
-/*
- * Functions to READ and WRITE to serial port 1
- */
-#define	SERIAL_READ_1(ofs)		(*((volatile unsigned char*)	\
-					(TITAN_SERIAL_BASE_1 + ofs)))
-
-#define	SERIAL_WRITE_1(ofs, val)	((*((volatile unsigned char*)	\
-					(TITAN_SERIAL_BASE_1 + ofs))) = val)
-
-/*
- * Second serial port initialization
- */
-void init_second_port(void)
-{
-	/* Disable Interrupts */
-	SERIAL_WRITE_1(SERIAL_LINE_CONTROL, 0x0);
-	SERIAL_WRITE_1(SERIAL_INTR_ENABLE, 0x0);
-
-	{
-		unsigned int divisor;
-
-		SERIAL_WRITE_1(SERIAL_LINE_CONTROL, 0x80);
-		divisor = TITAN_SERIAL_BASE_BAUD / YOSEMITE_BAUD_115200;
-		SERIAL_WRITE_1(SERIAL_DIVISOR_LSB, divisor & 0xff);
-
-		SERIAL_WRITE_1(SERIAL_DIVISOR_MSB,
-			       (divisor & 0xff00) >> 8);
-		SERIAL_WRITE_1(SERIAL_LINE_CONTROL, 0x0);
-	}
-
-	SERIAL_WRITE_1(SERIAL_DATA_FORMAT, YOSEMITE_DATA_8BIT |
-		       YOSEMITE_PARITY_NONE | YOSEMITE_STOP_1BIT);
-
-	/* Enable Interrupts */
-	SERIAL_WRITE_1(SERIAL_INTR_ENABLE, 0xf);
-}
-
-/* Initialize the serial port for KGDB debugging */
-void debugInit(unsigned int baud, unsigned char data, unsigned char parity,
-	       unsigned char stop)
-{
-	/* Disable Interrupts */
-	SERIAL_WRITE(SERIAL_LINE_CONTROL, 0x0);
-	SERIAL_WRITE(SERIAL_INTR_ENABLE, 0x0);
-
-	{
-		unsigned int divisor;
-
-		SERIAL_WRITE(SERIAL_LINE_CONTROL, 0x80);
-
-		divisor = TITAN_SERIAL_BASE_BAUD / baud;
-		SERIAL_WRITE(SERIAL_DIVISOR_LSB, divisor & 0xff);
-
-		SERIAL_WRITE(SERIAL_DIVISOR_MSB, (divisor & 0xff00) >> 8);
-		SERIAL_WRITE(SERIAL_LINE_CONTROL, 0x0);
-	}
-
-	SERIAL_WRITE(SERIAL_DATA_FORMAT, data | parity | stop);
-}
-
-static int remoteDebugInitialized = 0;
-
-unsigned char getDebugChar(void)
-{
-	if (!remoteDebugInitialized) {
-		remoteDebugInitialized = 1;
-		debugInit(YOSEMITE_BAUD_115200,
-			  YOSEMITE_DATA_8BIT,
-			  YOSEMITE_PARITY_NONE, YOSEMITE_STOP_1BIT);
-	}
-
-	while ((SERIAL_READ(SERIAL_LINE_STATUS) & 0x1) == 0);
-	return SERIAL_READ(SERIAL_RCV_BUFFER);
-}
-
-int putDebugChar(unsigned char byte)
-{
-	if (!remoteDebugInitialized) {
-		remoteDebugInitialized = 1;
-		debugInit(YOSEMITE_BAUD_115200,
-			  YOSEMITE_DATA_8BIT,
-			  YOSEMITE_PARITY_NONE, YOSEMITE_STOP_1BIT);
-	}
-
-	while ((SERIAL_READ(SERIAL_LINE_STATUS) & 0x20) == 0);
-	SERIAL_WRITE(SERIAL_SEND_BUFFER, byte);
-
-	return 1;
-}
diff --git a/arch/mips/pmc-sierra/yosemite/ht.c b/arch/mips/pmc-sierra/yosemite/ht.c
index 6380662bbf3..678388fd34b 100644
--- a/arch/mips/pmc-sierra/yosemite/ht.c
+++ b/arch/mips/pmc-sierra/yosemite/ht.c
@@ -345,42 +345,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
         return pcibios_enable_resources(dev);
 }
 
-
-
-void pcibios_update_resource(struct pci_dev *dev, struct resource *root,
-                             struct resource *res, int resource)
-{
-        u32 new, check;
-        int reg;
-
-        return;
-
-        new = res->start | (res->flags & PCI_REGION_FLAG_MASK);
-        if (resource < 6) {
-                reg = PCI_BASE_ADDRESS_0 + 4 * resource;
-        } else if (resource == PCI_ROM_RESOURCE) {
-		res->flags |= IORESOURCE_ROM_ENABLE;
-                reg = dev->rom_base_reg;
-        } else {
-                /*
-                 * Somebody might have asked allocation of a non-standard
-                 * resource
-                 */
-                return;
-        }
-
-        pci_write_config_dword(dev, reg, new);
-        pci_read_config_dword(dev, reg, &check);
-        if ((new ^ check) &
-            ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK :
-             PCI_BASE_ADDRESS_MEM_MASK)) {
-                printk(KERN_ERR "PCI: Error while updating region "
-                       "%s/%d (%08x != %08x)\n", pci_name(dev), resource,
-                       new, check);
-        }
-}
-
-
 void pcibios_align_resource(void *data, struct resource *res,
                             resource_size_t size, resource_size_t align)
 {
diff --git a/arch/mips/pmc-sierra/yosemite/irq.c b/arch/mips/pmc-sierra/yosemite/irq.c
index 4decc280786..5f673eba142 100644
--- a/arch/mips/pmc-sierra/yosemite/irq.c
+++ b/arch/mips/pmc-sierra/yosemite/irq.c
@@ -141,10 +141,6 @@ asmlinkage void plat_irq_dispatch(void)
 	}
 }
 
-#ifdef CONFIG_KGDB
-extern void init_second_port(void);
-#endif
-
 /*
  * Initialize the next level interrupt handler
  */
@@ -156,11 +152,6 @@ void __init arch_init_irq(void)
 	rm7k_cpu_irq_init();
 	rm9k_cpu_irq_init();
 
-#ifdef CONFIG_KGDB
-	/* At this point, initialize the second serial port */
-	init_second_port();
-#endif
-
 #ifdef CONFIG_GDB_CONSOLE
 	register_gdb_console();
 #endif
diff --git a/arch/mips/pmc-sierra/yosemite/prom.c b/arch/mips/pmc-sierra/yosemite/prom.c
index 35dc435846a..cf4c868715a 100644
--- a/arch/mips/pmc-sierra/yosemite/prom.c
+++ b/arch/mips/pmc-sierra/yosemite/prom.c
@@ -64,7 +64,7 @@ static void prom_exit(void)
 #ifdef CONFIG_SMP
 	if (smp_processor_id())
 		/* CPU 1 */
-		smp_call_function(prom_cpu0_exit, NULL, 1, 1);
+		smp_call_function(prom_cpu0_exit, NULL, 1);
 #endif
 	prom_cpu0_exit(NULL);
 }