Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

56 files changed, 8486 insertions, 0 deletions

diff --git a/arch/mips/au1000/common/Makefile b/arch/mips/au1000/common/Makefile
new file mode 100644
index 00000000000..594b75e5e08
--- /dev/null
+++ b/arch/mips/au1000/common/Makefile
@@ -0,0 +1,15 @@
+#
+#  Copyright 2000 MontaVista Software Inc.
+#  Author: MontaVista Software, Inc.
+#     	ppopov@mvista.com or source@mvista.com
+#
+# Makefile for the Alchemy Au1000 CPU, generic files.
+#
+
+obj-y += prom.o int-handler.o irq.o puts.o time.o reset.o \
+	au1xxx_irqmap.o clocks.o platform.o power.o setup.o \
+	sleeper.o cputable.o dma.o dbdma.o
+
+obj-$(CONFIG_AU1X00_USB_DEVICE)	+= usbdev.o
+obj-$(CONFIG_KGDB)		+= dbg_io.o
+obj-$(CONFIG_PCI)		+= pci.o
diff --git a/arch/mips/au1000/common/au1xxx_irqmap.c b/arch/mips/au1000/common/au1xxx_irqmap.c
new file mode 100644
index 00000000000..8a0f39f67c5
--- /dev/null
+++ b/arch/mips/au1000/common/au1xxx_irqmap.c
@@ -0,0 +1,224 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ *	Au1xxx processor specific IRQ tables
+ *
+ * Copyright 2004 Embedded Edge, LLC
+ *	dan@embeddededge.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.
+ */
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+#include <asm/mach-au1x00/au1000.h>
+
+/* The IC0 interrupt table.  This is processor, rather than
+ * board dependent, so no reason to keep this info in the board
+ * dependent files.
+ *
+ * Careful if you change match 2 request!
+ * The interrupt handler is called directly from the low level dispatch code.
+ */
+au1xxx_irq_map_t au1xxx_ic0_map[] = {
+
+#if defined(CONFIG_SOC_AU1000)
+	{ AU1000_UART0_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_UART1_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_UART2_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_UART3_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_SSI0_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_SSI1_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+1, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+2, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+3, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+4, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+5, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+6, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+7, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_TOY_MATCH2_INT, INTC_INT_RISE_EDGE, 1 },
+	{ AU1000_RTC_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_IRDA_TX_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_IRDA_RX_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 },
+	{ AU1000_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1000_ACSYNC_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_MAC1_DMA_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_AC97C_INT, INTC_INT_RISE_EDGE, 0 },
+
+#elif defined(CONFIG_SOC_AU1500)
+
+	{ AU1500_UART0_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_PCI_INTA, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1000_PCI_INTB, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1500_UART3_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_PCI_INTC, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1000_PCI_INTD, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1000_DMA_INT_BASE, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+1, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+2, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+3, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+4, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+5, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+6, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+7, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_TOY_MATCH2_INT, INTC_INT_RISE_EDGE, 1 },
+	{ AU1000_RTC_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 },
+	{ AU1000_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1000_ACSYNC_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1500_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1500_MAC1_DMA_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_AC97C_INT, INTC_INT_RISE_EDGE, 0 },
+
+#elif defined(CONFIG_SOC_AU1100)
+
+	{ AU1100_UART0_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1100_UART1_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1100_SD_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1100_UART3_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_SSI0_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_SSI1_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+1, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+2, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+3, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+4, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+5, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+6, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_DMA_INT_BASE+7, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_TOY_MATCH2_INT, INTC_INT_RISE_EDGE, 1 },
+	{ AU1000_RTC_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_IRDA_TX_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_IRDA_RX_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 },
+	{ AU1000_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1000_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1000_ACSYNC_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1100_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0},
+	/*{ AU1000_GPIO215_208_INT, INTC_INT_HIGH_LEVEL, 0},*/
+	{ AU1100_LCD_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1000_AC97C_INT, INTC_INT_RISE_EDGE, 0 },
+
+#elif defined(CONFIG_SOC_AU1550)
+
+	{ AU1550_UART0_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_PCI_INTA, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1550_PCI_INTB, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1550_DDMA_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_CRYPTO_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_PCI_INTC, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1550_PCI_INTD, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1550_PCI_RST_INT, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1550_UART1_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_UART3_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_PSC0_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_PSC1_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_PSC2_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_PSC3_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_TOY_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1550_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1550_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1550_TOY_MATCH2_INT, INTC_INT_RISE_EDGE, 1 },
+	{ AU1550_RTC_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1550_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1550_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1550_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1550_NAND_INT, INTC_INT_RISE_EDGE, 0},
+	{ AU1550_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 },
+	{ AU1550_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1550_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 },
+	{ AU1550_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1550_MAC1_DMA_INT, INTC_INT_HIGH_LEVEL, 0},
+
+#elif defined(CONFIG_SOC_AU1200)
+
+	{ AU1200_UART0_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1200_SWT_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1200_SD_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1200_DDMA_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1200_MAE_BE_INT, INTC_INT_HIGH_LEVEL, 0 },
+	{ AU1200_UART1_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1200_MAE_FE_INT, INTC_INT_HIGH_LEVEL, 0 },
+	{ AU1200_PSC0_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1200_PSC1_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1200_AES_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1200_CAMERA_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1200_TOY_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1200_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1200_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1200_TOY_MATCH2_INT, INTC_INT_RISE_EDGE, 1 },
+	{ AU1200_RTC_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1200_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1200_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1200_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 },
+	{ AU1200_NAND_INT, INTC_INT_RISE_EDGE, 0},
+	{ AU1200_USB_INT, INTC_INT_HIGH_LEVEL, 0 },
+	{ AU1200_LCD_INT, INTC_INT_HIGH_LEVEL, 0},
+	{ AU1200_MAE_BOTH_INT, INTC_INT_HIGH_LEVEL, 0},
+
+#else
+#error "Error: Unknown Alchemy SOC"
+#endif
+
+};
+
+int au1xxx_ic0_nr_irqs = sizeof(au1xxx_ic0_map)/sizeof(au1xxx_irq_map_t);
+
diff --git a/arch/mips/au1000/common/clocks.c b/arch/mips/au1000/common/clocks.c
new file mode 100644
index 00000000000..3ce6cace0eb
--- /dev/null
+++ b/arch/mips/au1000/common/clocks.c
@@ -0,0 +1,96 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ *	Simple Au1000 clocks routines.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *		ppopov@mvista.com or 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  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/module.h>
+#include <asm/mach-au1x00/au1000.h>
+
+static unsigned int au1x00_clock; // Hz
+static unsigned int lcd_clock;    // KHz
+static unsigned long uart_baud_base;
+
+/*
+ * Set the au1000_clock
+ */
+void set_au1x00_speed(unsigned int new_freq)
+{
+	au1x00_clock = new_freq;
+}
+
+unsigned int get_au1x00_speed(void)
+{
+	return au1x00_clock;
+}
+
+
+
+/*
+ * The UART baud base is not known at compile time ... if
+ * we want to be able to use the same code on different
+ * speed CPUs.
+ */
+unsigned long get_au1x00_uart_baud_base(void)
+{
+	return uart_baud_base;
+}
+
+void set_au1x00_uart_baud_base(unsigned long new_baud_base)
+{
+	uart_baud_base = new_baud_base;
+}
+
+/*
+ * Calculate the Au1x00's LCD clock based on the current
+ * cpu clock and the system bus clock, and try to keep it
+ * below 40 MHz (the Pb1000 board can lock-up if the LCD
+ * clock is over 40 MHz).
+ */
+void set_au1x00_lcd_clock(void)
+{
+	unsigned int static_cfg0;
+	unsigned int sys_busclk =
+		(get_au1x00_speed()/1000) /
+		((int)(au_readl(SYS_POWERCTRL)&0x03) + 2);
+
+	static_cfg0 = au_readl(MEM_STCFG0);
+
+	if (static_cfg0 & (1<<11))
+		lcd_clock = sys_busclk / 5; /* note: BCLK switching fails with D5 */
+	else
+		lcd_clock = sys_busclk / 4;
+
+	if (lcd_clock > 50000) /* Epson MAX */
+		printk("warning: LCD clock too high (%d KHz)\n", lcd_clock);
+}
+
+unsigned int get_au1x00_lcd_clock(void)
+{
+	return lcd_clock;
+}
+
+EXPORT_SYMBOL(get_au1x00_lcd_clock);
diff --git a/arch/mips/au1000/common/cputable.c b/arch/mips/au1000/common/cputable.c
new file mode 100644
index 00000000000..f5521dfccfd
--- /dev/null
+++ b/arch/mips/au1000/common/cputable.c
@@ -0,0 +1,55 @@
+/*
+ *  arch/mips/au1000/common/cputable.c
+ *
+ *  Copyright (C) 2004 Dan Malek (dan@embeddededge.com)
+ *	Copied from PowerPC and updated for Alchemy Au1xxx processors.
+ *
+ *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
+ *
+ *  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.
+ */
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/threads.h>
+#include <linux/init.h>
+#include <asm/mach-au1x00/au1000.h>
+
+struct cpu_spec* cur_cpu_spec[NR_CPUS];
+
+/* With some thought, we can probably use the mask to reduce the
+ * size of the table.
+ */
+struct cpu_spec	cpu_specs[] = {
+    { 0xffffffff, 0x00030100, "Au1000 DA", 1, 0 },
+    { 0xffffffff, 0x00030201, "Au1000 HA", 1, 0 },
+    { 0xffffffff, 0x00030202, "Au1000 HB", 1, 0 },
+    { 0xffffffff, 0x00030203, "Au1000 HC", 1, 1 },
+    { 0xffffffff, 0x00030204, "Au1000 HD", 1, 1 },
+    { 0xffffffff, 0x01030200, "Au1500 AB", 1, 1 },
+    { 0xffffffff, 0x01030201, "Au1500 AC", 0, 1 },
+    { 0xffffffff, 0x01030202, "Au1500 AD", 0, 1 },
+    { 0xffffffff, 0x02030200, "Au1100 AB", 1, 1 },
+    { 0xffffffff, 0x02030201, "Au1100 BA", 1, 1 },
+    { 0xffffffff, 0x02030202, "Au1100 BC", 1, 1 },
+    { 0xffffffff, 0x02030203, "Au1100 BD", 0, 1 },
+    { 0xffffffff, 0x02030204, "Au1100 BE", 0, 1 },
+    { 0xffffffff, 0x03030200, "Au1550 AA", 0, 1 },
+    { 0xffffffff, 0x04030200, "Au1200 AA", 0, 1 },
+    { 0x00000000, 0x00000000, "Unknown Au1xxx", 1, 0 },
+};
+
+void
+set_cpuspec(void)
+{
+	struct	cpu_spec *sp;
+	u32	prid;
+
+	prid = read_c0_prid();
+	sp = cpu_specs;
+	while ((prid & sp->prid_mask) != sp->prid_value)
+		sp++;
+	cur_cpu_spec[0] = sp;
+}
diff --git a/arch/mips/au1000/common/dbdma.c b/arch/mips/au1000/common/dbdma.c
new file mode 100644
index 00000000000..adfc3172aac
--- /dev/null
+++ b/arch/mips/au1000/common/dbdma.c
@@ -0,0 +1,836 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *      The Descriptor Based DMA channel manager that first appeared
+ *	on the Au1550.  I started with dma.c, but I think all that is
+ *	left is this initial comment :-)
+ *
+ * Copyright 2004 Embedded Edge, LLC
+ *	dan@embeddededge.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.
+ *
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1xxx_dbdma.h>
+#include <asm/system.h>
+
+#if defined(CONFIG_SOC_AU1550) || defined(CONFIG_SOC_AU1200)
+
+/*
+ * The Descriptor Based DMA supports up to 16 channels.
+ *
+ * There are 32 devices defined. We keep an internal structure
+ * of devices using these channels, along with additional
+ * information.
+ *
+ * We allocate the descriptors and allow access to them through various
+ * functions.  The drivers allocate the data buffers and assign them
+ * to the descriptors.
+ */
+static DEFINE_SPINLOCK(au1xxx_dbdma_spin_lock);
+
+/* I couldn't find a macro that did this......
+*/
+#define ALIGN_ADDR(x, a)	((((u32)(x)) + (a-1)) & ~(a-1))
+
+static volatile dbdma_global_t *dbdma_gptr = (dbdma_global_t *)DDMA_GLOBAL_BASE;
+static int dbdma_initialized;
+static void au1xxx_dbdma_init(void);
+
+typedef struct dbdma_device_table {
+	u32		dev_id;
+	u32		dev_flags;
+	u32		dev_tsize;
+	u32		dev_devwidth;
+	u32		dev_physaddr;		/* If FIFO */
+	u32		dev_intlevel;
+	u32		dev_intpolarity;
+} dbdev_tab_t;
+
+typedef struct dbdma_chan_config {
+	u32			chan_flags;
+	u32			chan_index;
+	dbdev_tab_t		*chan_src;
+	dbdev_tab_t		*chan_dest;
+	au1x_dma_chan_t		*chan_ptr;
+	au1x_ddma_desc_t	*chan_desc_base;
+	au1x_ddma_desc_t	*get_ptr, *put_ptr, *cur_ptr;
+	void			*chan_callparam;
+	void (*chan_callback)(int, void *, struct pt_regs *);
+} chan_tab_t;
+
+#define	DEV_FLAGS_INUSE		(1 << 0)
+#define	DEV_FLAGS_ANYUSE	(1 << 1)
+#define DEV_FLAGS_OUT		(1 << 2)
+#define DEV_FLAGS_IN		(1 << 3)
+
+static dbdev_tab_t dbdev_tab[] = {
+#ifdef CONFIG_SOC_AU1550
+	/* UARTS */
+	{ DSCR_CMD0_UART0_TX, DEV_FLAGS_OUT, 0, 8, 0x11100004, 0, 0 },
+	{ DSCR_CMD0_UART0_RX, DEV_FLAGS_IN, 0, 8, 0x11100000, 0, 0 },
+	{ DSCR_CMD0_UART3_TX, DEV_FLAGS_OUT, 0, 8, 0x11400004, 0, 0 },
+	{ DSCR_CMD0_UART3_RX, DEV_FLAGS_IN, 0, 8, 0x11400000, 0, 0 },
+
+	/* EXT DMA */
+	{ DSCR_CMD0_DMA_REQ0, 0, 0, 0, 0x00000000, 0, 0 },
+	{ DSCR_CMD0_DMA_REQ1, 0, 0, 0, 0x00000000, 0, 0 },
+	{ DSCR_CMD0_DMA_REQ2, 0, 0, 0, 0x00000000, 0, 0 },
+	{ DSCR_CMD0_DMA_REQ3, 0, 0, 0, 0x00000000, 0, 0 },
+
+	/* USB DEV */
+	{ DSCR_CMD0_USBDEV_RX0, DEV_FLAGS_IN, 4, 8, 0x10200000, 0, 0 },
+	{ DSCR_CMD0_USBDEV_TX0, DEV_FLAGS_OUT, 4, 8, 0x10200004, 0, 0 },
+	{ DSCR_CMD0_USBDEV_TX1, DEV_FLAGS_OUT, 4, 8, 0x10200008, 0, 0 },
+	{ DSCR_CMD0_USBDEV_TX2, DEV_FLAGS_OUT, 4, 8, 0x1020000c, 0, 0 },
+	{ DSCR_CMD0_USBDEV_RX3, DEV_FLAGS_IN, 4, 8, 0x10200010, 0, 0 },
+	{ DSCR_CMD0_USBDEV_RX4, DEV_FLAGS_IN, 4, 8, 0x10200014, 0, 0 },
+
+	/* PSC 0 */
+	{ DSCR_CMD0_PSC0_TX, DEV_FLAGS_OUT, 0, 0, 0x11a0001c, 0, 0 },
+	{ DSCR_CMD0_PSC0_RX, DEV_FLAGS_IN, 0, 0, 0x11a0001c, 0, 0 },
+
+	/* PSC 1 */
+	{ DSCR_CMD0_PSC1_TX, DEV_FLAGS_OUT, 0, 0, 0x11b0001c, 0, 0 },
+	{ DSCR_CMD0_PSC1_RX, DEV_FLAGS_IN, 0, 0, 0x11b0001c, 0, 0 },
+
+	/* PSC 2 */
+	{ DSCR_CMD0_PSC2_TX, DEV_FLAGS_OUT, 0, 0, 0x10a0001c, 0, 0 },
+	{ DSCR_CMD0_PSC2_RX, DEV_FLAGS_IN, 0, 0, 0x10a0001c, 0, 0 },
+
+	/* PSC 3 */
+	{ DSCR_CMD0_PSC3_TX, DEV_FLAGS_OUT, 0, 0, 0x10b0001c, 0, 0 },
+	{ DSCR_CMD0_PSC3_RX, DEV_FLAGS_IN, 0, 0, 0x10b0001c, 0, 0 },
+
+	{ DSCR_CMD0_PCI_WRITE, 0, 0, 0, 0x00000000, 0, 0 },	/* PCI */
+	{ DSCR_CMD0_NAND_FLASH, 0, 0, 0, 0x00000000, 0, 0 },	/* NAND */
+
+	/* MAC 0 */
+	{ DSCR_CMD0_MAC0_RX, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 },
+	{ DSCR_CMD0_MAC0_TX, DEV_FLAGS_OUT, 0, 0, 0x00000000, 0, 0 },
+
+	/* MAC 1 */
+	{ DSCR_CMD0_MAC1_RX, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 },
+	{ DSCR_CMD0_MAC1_TX, DEV_FLAGS_OUT, 0, 0, 0x00000000, 0, 0 },
+
+#endif /* CONFIG_SOC_AU1550 */
+
+#ifdef CONFIG_SOC_AU1200
+	{ DSCR_CMD0_UART0_TX, DEV_FLAGS_OUT, 0, 8, 0x11100004, 0, 0 },
+	{ DSCR_CMD0_UART0_RX, DEV_FLAGS_IN, 0, 8, 0x11100000, 0, 0 },
+	{ DSCR_CMD0_UART1_TX, DEV_FLAGS_OUT, 0, 8, 0x11200004, 0, 0 },
+	{ DSCR_CMD0_UART1_RX, DEV_FLAGS_IN, 0, 8, 0x11200000, 0, 0 },
+
+	{ DSCR_CMD0_DMA_REQ0