Merge commit 'v2.6.29-rc2' into x86/mm

4 files changed, 471 insertions, 0 deletions

diff --git a/arch/mips/alchemy/devboards/pb1200/Makefile b/arch/mips/alchemy/devboards/pb1200/Makefile
new file mode 100644
index 00000000000..c8c3a99fb68
--- /dev/null
+++ b/arch/mips/alchemy/devboards/pb1200/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the Alchemy Semiconductor Pb1200/DBAu1200 boards.
+#
+
+obj-y := board_setup.o irqmap.o platform.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/alchemy/devboards/pb1200/board_setup.c b/arch/mips/alchemy/devboards/pb1200/board_setup.c
new file mode 100644
index 00000000000..94e6b7e7753
--- /dev/null
+++ b/arch/mips/alchemy/devboards/pb1200/board_setup.c
@@ -0,0 +1,164 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *	Alchemy Pb1200/Db1200 board setup.
+ *
+ *  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.
+ */
+
+#include <linux/init.h>
+#include <linux/sched.h>
+
+#include <prom.h>
+#include <au1xxx.h>
+
+
+const char *get_system_type(void)
+{
+	return "Alchemy Pb1200";
+}
+
+void board_reset(void)
+{
+	bcsr->resets = 0;
+	bcsr->system = 0;
+}
+
+void __init board_setup(void)
+{
+	char *argptr;
+
+	argptr = prom_getcmdline();
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+	argptr = strstr(argptr, "console=");
+	if (argptr == NULL) {
+		argptr = prom_getcmdline();
+		strcat(argptr, " console=ttyS0,115200");
+	}
+#endif
+#ifdef CONFIG_FB_AU1200
+	strcat(argptr, " video=au1200fb:panel:bs");
+#endif
+
+#if 0
+	{
+		u32 pin_func;
+
+		/*
+		 * Enable PSC1 SYNC for AC97.  Normaly done in audio driver,
+		 * but it is board specific code, so put it here.
+		 */
+		pin_func = au_readl(SYS_PINFUNC);
+		au_sync();
+		pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1;
+		au_writel(pin_func, SYS_PINFUNC);
+
+		au_writel(0, (u32)bcsr | 0x10); /* turn off PCMCIA power */
+		au_sync();
+	}
+#endif
+
+#if defined(CONFIG_I2C_AU1550)
+	{
+		u32 freq0, clksrc;
+		u32 pin_func;
+
+		/* Select SMBus in CPLD */
+		bcsr->resets &= ~BCSR_RESETS_PCS0MUX;
+
+		pin_func = au_readl(SYS_PINFUNC);
+		au_sync();
+		pin_func &= ~(SYS_PINFUNC_P0A | SYS_PINFUNC_P0B);
+		/* Set GPIOs correctly */
+		pin_func |= 2 << 17;
+		au_writel(pin_func, SYS_PINFUNC);
+		au_sync();
+
+		/* The I2C driver depends on 50 MHz clock */
+		freq0 = au_readl(SYS_FREQCTRL0);
+		au_sync();
+		freq0 &= ~(SYS_FC_FRDIV1_MASK | SYS_FC_FS1 | SYS_FC_FE1);
+		freq0 |= 3 << SYS_FC_FRDIV1_BIT;
+		/* 396 MHz / (3 + 1) * 2 == 49.5 MHz */
+		au_writel(freq0, SYS_FREQCTRL0);
+		au_sync();
+		freq0 |= SYS_FC_FE1;
+		au_writel(freq0, SYS_FREQCTRL0);
+		au_sync();
+
+		clksrc = au_readl(SYS_CLKSRC);
+		au_sync();
+		clksrc &= ~(SYS_CS_CE0 | SYS_CS_DE0 | SYS_CS_ME0_MASK);
+		/* Bit 22 is EXTCLK0 for PSC0 */
+		clksrc |= SYS_CS_MUX_FQ1 << SYS_CS_ME0_BIT;
+		au_writel(clksrc, SYS_CLKSRC);
+		au_sync();
+	}
+#endif
+
+	/*
+	 * The Pb1200 development board uses external MUX for PSC0 to
+	 * support SMB/SPI. bcsr->resets bit 12: 0=SMB 1=SPI
+	 */
+#ifdef CONFIG_I2C_AU1550
+	bcsr->resets &= ~BCSR_RESETS_PCS0MUX;
+#endif
+	au_sync();
+
+#ifdef CONFIG_MIPS_PB1200
+	printk(KERN_INFO "AMD Alchemy Pb1200 Board\n");
+#endif
+#ifdef CONFIG_MIPS_DB1200
+	printk(KERN_INFO "AMD Alchemy Db1200 Board\n");
+#endif
+}
+
+int board_au1200fb_panel(void)
+{
+	BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR;
+	int p;
+
+	p = bcsr->switches;
+	p >>= 8;
+	p &= 0x0F;
+	return p;
+}
+
+int board_au1200fb_panel_init(void)
+{
+	/* Apply power */
+	BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR;
+
+	bcsr->board |= BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | BCSR_BOARD_LCDBL;
+	/* printk(KERN_DEBUG "board_au1200fb_panel_init()\n"); */
+	return 0;
+}
+
+int board_au1200fb_panel_shutdown(void)
+{
+	/* Remove power */
+	BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR;
+
+	bcsr->board &= ~(BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD |
+			 BCSR_BOARD_LCDBL);
+	/* printk(KERN_DEBUG "board_au1200fb_panel_shutdown()\n"); */
+	return 0;
+}
diff --git a/arch/mips/alchemy/devboards/pb1200/irqmap.c b/arch/mips/alchemy/devboards/pb1200/irqmap.c
new file mode 100644
index 00000000000..fe47498da28
--- /dev/null
+++ b/arch/mips/alchemy/devboards/pb1200/irqmap.c
@@ -0,0 +1,134 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ *	Au1xxx irq map table
+ *
+ *  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.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+
+#include <asm/mach-au1x00/au1000.h>
+
+#ifdef CONFIG_MIPS_PB1200
+#include <asm/mach-pb1x00/pb1200.h>
+#endif
+
+#ifdef CONFIG_MIPS_DB1200
+#include <asm/mach-db1x00/db1200.h>
+#define PB1200_INT_BEGIN DB1200_INT_BEGIN
+#define PB1200_INT_END DB1200_INT_END
+#endif
+
+struct au1xxx_irqmap __initdata au1xxx_irq_map[] = {
+	/* This is external interrupt cascade */
+	{ AU1000_GPIO_7, IRQF_TRIGGER_LOW, 0 },
+};
+
+
+/*
+ * Support for External interrupts on the Pb1200 Development platform.
+ */
+
+static void pb1200_cascade_handler(unsigned int irq, struct irq_desc *d)
+{
+	unsigned short bisr = bcsr->int_status;
+
+	for ( ; bisr; bisr &= bisr - 1)
+		generic_handle_irq(PB1200_INT_BEGIN + __ffs(bisr));
+}
+
+/* NOTE: both the enable and mask bits must be cleared, otherwise the
+ * CPLD generates tons of spurious interrupts (at least on the DB1200).
+ */
+static void pb1200_mask_irq(unsigned int irq_nr)
+{
+	bcsr->intclr_mask = 1 << (irq_nr - PB1200_INT_BEGIN);
+	bcsr->intclr = 1 << (irq_nr - PB1200_INT_BEGIN);
+	au_sync();
+}
+
+static void pb1200_maskack_irq(unsigned int irq_nr)
+{
+	bcsr->intclr_mask = 1 << (irq_nr - PB1200_INT_BEGIN);
+	bcsr->intclr = 1 << (irq_nr - PB1200_INT_BEGIN);
+	bcsr->int_status = 1 << (irq_nr - PB1200_INT_BEGIN);	/* ack */
+	au_sync();
+}
+
+static void pb1200_unmask_irq(unsigned int irq_nr)
+{
+	bcsr->intset = 1 << (irq_nr - PB1200_INT_BEGIN);
+	bcsr->intset_mask = 1 << (irq_nr - PB1200_INT_BEGIN);
+	au_sync();
+}
+
+static struct irq_chip pb1200_cpld_irq_type = {
+#ifdef CONFIG_MIPS_PB1200
+	.name = "Pb1200 Ext",
+#endif
+#ifdef CONFIG_MIPS_DB1200
+	.name = "Db1200 Ext",
+#endif
+	.mask		= pb1200_mask_irq,
+	.mask_ack	= pb1200_maskack_irq,
+	.unmask		= pb1200_unmask_irq,
+};
+
+void __init board_init_irq(void)
+{
+	unsigned int irq;
+
+	au1xxx_setup_irqmap(au1xxx_irq_map, ARRAY_SIZE(au1xxx_irq_map));
+
+#ifdef CONFIG_MIPS_PB1200
+	/* We have a problem with CPLD rev 3. */
+	if (((bcsr->whoami & BCSR_WHOAMI_CPLD) >> 4) <= 3) {
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "Pb1200 must be at CPLD rev 4. Please have Pb1200\n");
+		printk(KERN_ERR "updated to latest revision. This software will\n");
+		printk(KERN_ERR "not work on anything less than CPLD rev 4.\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		panic("Game over.  Your score is 0.");
+	}
+#endif
+	/* mask & disable & ack all */
+	bcsr->intclr_mask = 0xffff;
+	bcsr->intclr = 0xffff;
+	bcsr->int_status = 0xffff;
+	au_sync();
+
+	for (irq = PB1200_INT_BEGIN; irq <= PB1200_INT_END; irq++)
+		set_irq_chip_and_handler_name(irq, &pb1200_cpld_irq_type,
+					 handle_level_irq, "level");
+
+	set_irq_chained_handler(AU1000_GPIO_7, pb1200_cascade_handler);
+}
diff --git a/arch/mips/alchemy/devboards/pb1200/platform.c b/arch/mips/alchemy/devboards/pb1200/platform.c
new file mode 100644
index 00000000000..95303297c53
--- /dev/null
+++ b/arch/mips/alchemy/devboards/pb1200/platform.c
@@ -0,0 +1,166 @@
+/*
+ * Pb1200/DBAu1200 board platform device registration
+ *
+ * Copyright (C) 2008 MontaVista Software Inc. <source@mvista.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 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/leds.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-au1x00/au1xxx.h>
+#include <asm/mach-au1x00/au1100_mmc.h>
+
+static int mmc_activity;
+
+static void pb1200mmc0_set_power(void *mmc_host, int state)
+{
+	if (state)
+		bcsr->board |= BCSR_BOARD_SD0PWR;
+	else
+		bcsr->board &= ~BCSR_BOARD_SD0PWR;
+
+	au_sync_delay(1);
+}
+
+static int pb1200mmc0_card_readonly(void *mmc_host)
+{
+	return (bcsr->status & BCSR_STATUS_SD0WP) ? 1 : 0;
+}
+
+static int pb1200mmc0_card_inserted(void *mmc_host)
+{
+	return (bcsr->sig_status & BCSR_INT_SD0INSERT) ? 1 : 0;
+}
+
+static void pb1200_mmcled_set(struct led_classdev *led,
+			enum led_brightness brightness)
+{
+	if (brightness != LED_OFF) {
+		if (++mmc_activity == 1)
+			bcsr->disk_leds &= ~(1 << 8);
+	} else {
+		if (--mmc_activity == 0)
+			bcsr->disk_leds |= (1 << 8);
+	}
+}
+
+static struct led_classdev pb1200mmc_led = {
+	.brightness_set	= pb1200_mmcled_set,
+};
+
+#ifndef CONFIG_MIPS_DB1200
+static void pb1200mmc1_set_power(void *mmc_host, int state)
+{
+	if (state)
+		bcsr->board |= BCSR_BOARD_SD1PWR;
+	else
+		bcsr->board &= ~BCSR_BOARD_SD1PWR;
+
+	au_sync_delay(1);
+}
+
+static int pb1200mmc1_card_readonly(void *mmc_host)
+{
+	return (bcsr->status & BCSR_STATUS_SD1WP) ? 1 : 0;
+}
+
+static int pb1200mmc1_card_inserted(void *mmc_host)
+{
+	return (bcsr->sig_status & BCSR_INT_SD1INSERT) ? 1 : 0;
+}
+#endif
+
+const struct au1xmmc_platform_data au1xmmc_platdata[2] = {
+	[0] = {
+		.set_power	= pb1200mmc0_set_power,
+		.card_inserted	= pb1200mmc0_card_inserted,
+		.card_readonly	= pb1200mmc0_card_readonly,
+		.cd_setup	= NULL,		/* use poll-timer in driver */
+		.led		= &pb1200mmc_led,
+	},
+#ifndef CONFIG_MIPS_DB1200
+	[1] = {
+		.set_power	= pb1200mmc1_set_power,
+		.card_inserted	= pb1200mmc1_card_inserted,
+		.card_readonly	= pb1200mmc1_card_readonly,
+		.cd_setup	= NULL,		/* use poll-timer in driver */
+		.led		= &pb1200mmc_led,
+	},
+#endif
+};
+
+static struct resource ide_resources[] = {
+	[0] = {
+		.start	= IDE_PHYS_ADDR,
+		.end 	= IDE_PHYS_ADDR + IDE_PHYS_LEN - 1,
+		.flags	= IORESOURCE_MEM
+	},
+	[1] = {
+		.start	= IDE_INT,
+		.end	= IDE_INT,
+		.flags	= IORESOURCE_IRQ
+	}
+};
+
+static u64 ide_dmamask = DMA_32BIT_MASK;
+
+static struct platform_device ide_device = {
+	.name		= "au1200-ide",
+	.id		= 0,
+	.dev = {
+		.dma_mask 		= &ide_dmamask,
+		.coherent_dma_mask	= DMA_32BIT_MASK,
+	},
+	.num_resources	= ARRAY_SIZE(ide_resources),
+	.resource	= ide_resources
+};
+
+static struct resource smc91c111_resources[] = {
+	[0] = {
+		.name	= "smc91x-regs",
+		.start	= SMC91C111_PHYS_ADDR,
+		.end	= SMC91C111_PHYS_ADDR + 0xf,
+		.flags	= IORESOURCE_MEM
+	},
+	[1] = {
+		.start	= SMC91C111_INT,
+		.end	= SMC91C111_INT,
+		.flags	= IORESOURCE_IRQ
+	},
+};
+
+static struct platform_device smc91c111_device = {
+	.name		= "smc91x",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(smc91c111_resources),
+	.resource	= smc91c111_resources
+};
+
+static struct platform_device *board_platform_devices[] __initdata = {
+	&ide_device,
+	&smc91c111_device
+};
+
+static int __init board_register_devices(void)
+{
+	return platform_add_devices(board_platform_devices,
+				    ARRAY_SIZE(board_platform_devices));
+}
+
+arch_initcall(board_register_devices);