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authorMarc St-Jean <stjeanma@pmc-sierra.com>2007-06-14 15:54:47 -0600
committerRalf Baechle <ralf@linux-mips.org>2007-07-10 17:33:02 +0100
commit35832e26f95ba14a6b6f0519441c5cb64cca6bf9 (patch)
treedb3c05782a2140b19917344fb640070a655d75fd /arch
parenta4b156d47d204904fa104c3e585b4c67b89195f3 (diff)
downloadlinux-2.6.34-ux500-35832e26f95ba14a6b6f0519441c5cb64cca6bf9.tar.gz
[MIPS] PMC MSP71xx core platform
Patch to add core platform support for the PMC-Sierra MSP71xx devices. Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/pmc-sierra/msp71xx/Makefile11
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_elb.c46
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_hwbutton.c179
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_irq.c124
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c134
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c109
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_prom.c566
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_setup.c256
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_time.c94
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_usb.c150
10 files changed, 1669 insertions, 0 deletions
diff --git a/arch/mips/pmc-sierra/msp71xx/Makefile b/arch/mips/pmc-sierra/msp71xx/Makefile
new file mode 100644
index 00000000000..4bba79c1cc7
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the PMC-Sierra MSP SOCs
+#
+obj-y += msp_prom.o msp_setup.o msp_irq.o \
+ msp_time.o msp_serial.o msp_elb.o
+obj-$(CONFIG_PMC_MSP7120_GW) += msp_hwbutton.o
+obj-$(CONFIG_IRQ_MSP_SLP) += msp_irq_slp.o
+obj-$(CONFIG_IRQ_MSP_CIC) += msp_irq_cic.o
+obj-$(CONFIG_PCI) += msp_pci.o
+obj-$(CONFIG_MSPETH) += msp_eth.o
+obj-$(CONFIG_USB_MSP71XX) += msp_usb.o
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_elb.c b/arch/mips/pmc-sierra/msp71xx/msp_elb.c
new file mode 100644
index 00000000000..3e964100721
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_elb.c
@@ -0,0 +1,46 @@
+/*
+ * Sets up the proper Chip Select configuration registers. It is assumed that
+ * PMON sets up the ADDR and MASK registers properly.
+ *
+ * Copyright 2005-2006 PMC-Sierra, Inc.
+ * Author: Marc St-Jean, Marc_St-Jean@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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <msp_regs.h>
+
+static int __init msp_elb_setup(void)
+{
+#if defined(CONFIG_PMC_MSP7120_GW) \
+ || defined(CONFIG_PMC_MSP7120_EVAL)
+ /*
+ * Force all CNFG to be identical and equal to CS0,
+ * according to OPS doc
+ */
+ *CS1_CNFG_REG = *CS2_CNFG_REG = *CS3_CNFG_REG = *CS0_CNFG_REG;
+#endif
+ return 0;
+}
+
+subsys_initcall(msp_elb_setup);
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_hwbutton.c b/arch/mips/pmc-sierra/msp71xx/msp_hwbutton.c
new file mode 100644
index 00000000000..6fa85728158
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_hwbutton.c
@@ -0,0 +1,179 @@
+/*
+ * Sets up interrupt handlers for various hardware switches which are
+ * connected to interrupt lines.
+ *
+ * Copyright 2005-2207 PMC-Sierra, Inc.
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+
+#include <msp_int.h>
+#include <msp_regs.h>
+#include <msp_regops.h>
+#ifdef CONFIG_PMCTWILED
+#include <msp_led_macros.h>
+#endif
+
+/* For hwbutton_interrupt->initial_state */
+#define HWBUTTON_HI 0x1
+#define HWBUTTON_LO 0x2
+
+/*
+ * This struct describes a hardware button
+ */
+struct hwbutton_interrupt {
+ char *name; /* Name of button */
+ int irq; /* Actual LINUX IRQ */
+ int eirq; /* Extended IRQ number (0-7) */
+ int initial_state; /* The "normal" state of the switch */
+ void (*handle_hi)(void *); /* Handler: switch input has gone HI */
+ void (*handle_lo)(void *); /* Handler: switch input has gone LO */
+ void *data; /* Optional data to pass to handler */
+};
+
+#ifdef CONFIG_PMC_MSP7120_GW
+extern void msp_restart(char *);
+
+static void softreset_push(void *data)
+{
+ printk(KERN_WARNING "SOFTRESET switch was pushed\n");
+
+ /*
+ * In the future you could move this to the release handler,
+ * timing the difference between the 'push' and 'release', and only
+ * doing this ungraceful restart if the button has been down for
+ * a certain amount of time; otherwise doing a graceful restart.
+ */
+
+ msp_restart(NULL);
+}
+
+static void softreset_release(void *data)
+{
+ printk(KERN_WARNING "SOFTRESET switch was released\n");
+
+ /* Do nothing */
+}
+
+static void standby_on(void *data)
+{
+ printk(KERN_WARNING "STANDBY switch was set to ON (not implemented)\n");
+
+ /* TODO: Put board in standby mode */
+#ifdef CONFIG_PMCTWILED
+ msp_led_turn_off(MSP_LED_PWRSTANDBY_GREEN);
+ msp_led_turn_on(MSP_LED_PWRSTANDBY_RED);
+#endif
+}
+
+static void standby_off(void *data)
+{
+ printk(KERN_WARNING
+ "STANDBY switch was set to OFF (not implemented)\n");
+
+ /* TODO: Take out of standby mode */
+#ifdef CONFIG_PMCTWILED
+ msp_led_turn_on(MSP_LED_PWRSTANDBY_GREEN);
+ msp_led_turn_off(MSP_LED_PWRSTANDBY_RED);
+#endif
+}
+
+static struct hwbutton_interrupt softreset_sw = {
+ .name = "Softreset button",
+ .irq = MSP_INT_EXT0,
+ .eirq = 0,
+ .initial_state = HWBUTTON_HI,
+ .handle_hi = softreset_release,
+ .handle_lo = softreset_push,
+ .data = NULL,
+};
+
+static struct hwbutton_interrupt standby_sw = {
+ .name = "Standby switch",
+ .irq = MSP_INT_EXT1,
+ .eirq = 1,
+ .initial_state = HWBUTTON_HI,
+ .handle_hi = standby_off,
+ .handle_lo = standby_on,
+ .data = NULL,
+};
+#endif /* CONFIG_PMC_MSP7120_GW */
+
+static irqreturn_t hwbutton_handler(int irq, void *data)
+{
+ struct hwbutton_interrupt *hirq = data;
+ unsigned long cic_ext = *CIC_EXT_CFG_REG;
+
+ if (irq != hirq->irq)
+ return IRQ_NONE;
+
+ if (CIC_EXT_IS_ACTIVE_HI(cic_ext, hirq->eirq)) {
+ /* Interrupt: pin is now HI */
+ CIC_EXT_SET_ACTIVE_LO(cic_ext, hirq->eirq);
+ hirq->handle_hi(hirq->data);
+ } else {
+ /* Interrupt: pin is now LO */
+ CIC_EXT_SET_ACTIVE_HI(cic_ext, hirq->eirq);
+ hirq->handle_lo(hirq->data);
+ }
+
+ /*
+ * Invert the POLARITY of this level interrupt to ack the interrupt
+ * Thus next state change will invoke the opposite message
+ */
+ *CIC_EXT_CFG_REG = cic_ext;
+
+ return IRQ_HANDLED;
+}
+
+static int msp_hwbutton_register(struct hwbutton_interrupt *hirq)
+{
+ unsigned long cic_ext;
+
+ if (hirq->handle_hi == NULL || hirq->handle_lo == NULL)
+ return -EINVAL;
+
+ cic_ext = *CIC_EXT_CFG_REG;
+ CIC_EXT_SET_TRIGGER_LEVEL(cic_ext, hirq->eirq);
+ if (hirq->initial_state == HWBUTTON_HI)
+ CIC_EXT_SET_ACTIVE_LO(cic_ext, hirq->eirq);
+ else
+ CIC_EXT_SET_ACTIVE_HI(cic_ext, hirq->eirq);
+ *CIC_EXT_CFG_REG = cic_ext;
+
+ return request_irq(hirq->irq, hwbutton_handler, SA_INTERRUPT,
+ hirq->name, (void *)hirq);
+}
+
+static int __init msp_hwbutton_setup(void)
+{
+#ifdef CONFIG_PMC_MSP7120_GW
+ msp_hwbutton_register(&softreset_sw);
+ msp_hwbutton_register(&standby_sw);
+#endif
+ return 0;
+}
+
+subsys_initcall(msp_hwbutton_setup);
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq.c b/arch/mips/pmc-sierra/msp71xx/msp_irq.c
new file mode 100644
index 00000000000..734d598a2e3
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_irq.c
@@ -0,0 +1,124 @@
+/*
+ * IRQ vector handles
+ *
+ * Copyright (C) 1995, 1996, 1997, 2003 by Ralf Baechle
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/time.h>
+
+#include <asm/irq_cpu.h>
+
+#include <msp_int.h>
+
+extern void msp_int_handle(void);
+
+/* SLP bases systems */
+extern void msp_slp_irq_init(void);
+extern void msp_slp_irq_dispatch(void);
+
+/* CIC based systems */
+extern void msp_cic_irq_init(void);
+extern void msp_cic_irq_dispatch(void);
+
+/*
+ * The PMC-Sierra MSP interrupts are arranged in a 3 level cascaded
+ * hierarchical system. The first level are the direct MIPS interrupts
+ * and are assigned the interrupt range 0-7. The second level is the SLM
+ * interrupt controller and is assigned the range 8-39. The third level
+ * comprises the Peripherial block, the PCI block, the PCI MSI block and
+ * the SLP. The PCI interrupts and the SLP errors are handled by the
+ * relevant subsystems so the core interrupt code needs only concern
+ * itself with the Peripheral block. These are assigned interrupts in
+ * the range 40-71.
+ */
+
+asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
+{
+ u32 pending;
+
+ pending = read_c0_status() & read_c0_cause();
+
+ /*
+ * jump to the correct interrupt routine
+ * These are arranged in priority order and the timer
+ * comes first!
+ */
+
+#ifdef CONFIG_IRQ_MSP_CIC /* break out the CIC stuff for now */
+ if (pending & C_IRQ4) /* do the peripherals first, that's the timer */
+ msp_cic_irq_dispatch();
+
+ else if (pending & C_IRQ0)
+ do_IRQ(MSP_INT_MAC0);
+
+ else if (pending & C_IRQ1)
+ do_IRQ(MSP_INT_MAC1);
+
+ else if (pending & C_IRQ2)
+ do_IRQ(MSP_INT_USB);
+
+ else if (pending & C_IRQ3)
+ do_IRQ(MSP_INT_SAR);
+
+ else if (pending & C_IRQ5)
+ do_IRQ(MSP_INT_SEC);
+
+#else
+ if (pending & C_IRQ5)
+ do_IRQ(MSP_INT_TIMER);
+
+ else if (pending & C_IRQ0)
+ do_IRQ(MSP_INT_MAC0);
+
+ else if (pending & C_IRQ1)
+ do_IRQ(MSP_INT_MAC1);
+
+ else if (pending & C_IRQ3)
+ do_IRQ(MSP_INT_VE);
+
+ else if (pending & C_IRQ4)
+ msp_slp_irq_dispatch();
+#endif
+
+ else if (pending & C_SW0) /* do software after hardware */
+ do_IRQ(MSP_INT_SW0);
+
+ else if (pending & C_SW1)
+ do_IRQ(MSP_INT_SW1);
+}
+
+static struct irqaction cascade_msp = {
+ .handler = no_action,
+ .name = "MSP cascade"
+};
+
+
+void __init arch_init_irq(void)
+{
+ /* initialize the 1st-level CPU based interrupt controller */
+ mips_cpu_irq_init();
+
+#ifdef CONFIG_IRQ_MSP_CIC
+ msp_cic_irq_init();
+
+ /* setup the cascaded interrupts */
+ setup_irq(MSP_INT_CIC, &cascade_msp);
+ setup_irq(MSP_INT_PER, &cascade_msp);
+#else
+ /* setup the 2nd-level SLP register based interrupt controller */
+ msp_slp_irq_init();
+
+ /* setup the cascaded SLP/PER interrupts */
+ setup_irq(MSP_INT_SLP, &cascade_msp);
+ setup_irq(MSP_INT_PER, &cascade_msp);
+#endif
+}
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c
new file mode 100644
index 00000000000..5175357d0a2
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c
@@ -0,0 +1,134 @@
+/*
+ * This file define the irq handler for MSP SLM subsystem interrupts.
+ *
+ * Copyright 2005-2007 PMC-Sierra, Inc, derived from irq_cpu.c
+ * Author: Andrew Hughes, Andrew_Hughes@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.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+
+#include <asm/system.h>
+
+#include <msp_cic_int.h>
+#include <msp_regs.h>
+
+/*
+ * NOTE: We are only enabling support for VPE0 right now.
+ */
+
+static inline void unmask_msp_cic_irq(unsigned int irq)
+{
+
+ /* check for PER interrupt range */
+ if (irq < MSP_PER_INTBASE)
+ *CIC_VPE0_MSK_REG |= (1 << (irq - MSP_CIC_INTBASE));
+ else
+ *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE));
+}
+
+static inline void mask_msp_cic_irq(unsigned int irq)
+{
+ /* check for PER interrupt range */
+ if (irq < MSP_PER_INTBASE)
+ *CIC_VPE0_MSK_REG &= ~(1 << (irq - MSP_CIC_INTBASE));
+ else
+ *PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE));
+}
+
+/*
+ * While we ack the interrupt interrupts are disabled and thus we don't need
+ * to deal with concurrency issues. Same for msp_cic_irq_end.
+ */
+static inline void ack_msp_cic_irq(unsigned int irq)
+{
+ mask_msp_cic_irq(irq);
+
+ /*
+ * only really necessary for 18, 16-14 and sometimes 3:0 (since
+ * these can be edge sensitive) but it doesn't hurt for the others.
+ */
+
+ /* check for PER interrupt range */
+ if (irq < MSP_PER_INTBASE)
+ *CIC_STS_REG = (1 << (irq - MSP_CIC_INTBASE));
+ else
+ *PER_INT_STS_REG = (1 << (irq - MSP_PER_INTBASE));
+}
+
+static struct irq_chip msp_cic_irq_controller = {
+ .name = "MSP_CIC",
+ .ack = ack_msp_cic_irq,
+ .mask = ack_msp_cic_irq,
+ .mask_ack = ack_msp_cic_irq,
+ .unmask = unmask_msp_cic_irq,
+};
+
+
+void __init msp_cic_irq_init(void)
+{
+ int i;
+
+ /* Mask/clear interrupts. */
+ *CIC_VPE0_MSK_REG = 0x00000000;
+ *PER_INT_MSK_REG = 0x00000000;
+ *CIC_STS_REG = 0xFFFFFFFF;
+ *PER_INT_STS_REG = 0xFFFFFFFF;
+
+#if defined(CONFIG_PMC_MSP7120_GW) || \
+ defined(CONFIG_PMC_MSP7120_EVAL)
+ /*
+ * The MSP7120 RG and EVBD boards use IRQ[6:4] for PCI.
+ * These inputs map to EXT_INT_POL[6:4] inside the CIC.
+ * They are to be active low, level sensitive.
+ */
+ *CIC_EXT_CFG_REG &= 0xFFFF8F8F;
+#endif
+
+ /* initialize all the IRQ descriptors */
+ for (i = MSP_CIC_INTBASE; i < MSP_PER_INTBASE + 32; i++)
+ set_irq_chip_and_handler(i, &msp_cic_irq_controller,
+ handle_level_irq);
+}
+
+void msp_cic_irq_dispatch(void)
+{
+ u32 pending;
+ int intbase;
+
+ intbase = MSP_CIC_INTBASE;
+ pending = *CIC_STS_REG & *CIC_VPE0_MSK_REG;
+
+ /* check for PER interrupt */
+ if (pending == (1 << (MSP_INT_PER - MSP_CIC_INTBASE))) {
+ intbase = MSP_PER_INTBASE;
+ pending = *PER_INT_STS_REG & *PER_INT_MSK_REG;
+ }
+
+ /* check for spurious interrupt */
+ if (pending == 0x00000000) {
+ printk(KERN_ERR
+ "Spurious %s interrupt? status %08x, mask %08x\n",
+ (intbase == MSP_CIC_INTBASE) ? "CIC" : "PER",
+ (intbase == MSP_CIC_INTBASE) ?
+ *CIC_STS_REG : *PER_INT_STS_REG,
+ (intbase == MSP_CIC_INTBASE) ?
+ *CIC_VPE0_MSK_REG : *PER_INT_MSK_REG);
+ return;
+ }
+
+ /* check for the timer and dispatch it first */
+ if ((intbase == MSP_CIC_INTBASE) &&
+ (pending & (1 << (MSP_INT_VPE0_TIMER - MSP_CIC_INTBASE))))
+ do_IRQ(MSP_INT_VPE0_TIMER);
+ else
+ do_IRQ(ffs(pending) + intbase - 1);
+}
+
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c
new file mode 100644
index 00000000000..f5f1b8d2bb9
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c
@@ -0,0 +1,109 @@
+/*
+ * This file define the irq handler for MSP SLM subsystem interrupts.
+ *
+ * Copyright 2005-2006 PMC-Sierra, Inc, derived from irq_cpu.c
+ * Author: Andrew Hughes, Andrew_Hughes@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.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+
+#include <msp_slp_int.h>
+#include <msp_regs.h>
+
+static inline void unmask_msp_slp_irq(unsigned int irq)
+{
+ /* check for PER interrupt range */
+ if (irq < MSP_PER_INTBASE)
+ *SLP_INT_MSK_REG |= (1 << (irq - MSP_SLP_INTBASE));
+ else
+ *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE));
+}
+
+static inline void mask_msp_slp_irq(unsigned int irq)
+{
+ /* check for PER interrupt range */
+ if (irq < MSP_PER_INTBASE)
+ *SLP_INT_MSK_REG &= ~(1 << (irq - MSP_SLP_INTBASE));
+ else
+ *PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE));
+}
+
+/*
+ * While we ack the interrupt interrupts are disabled and thus we don't need
+ * to deal with concurrency issues. Same for msp_slp_irq_end.
+ */
+static inline void ack_msp_slp_irq(unsigned int irq)
+{
+ mask_slp_irq(irq);
+
+ /*
+ * only really necessary for 18, 16-14 and sometimes 3:0 (since
+ * these can be edge sensitive) but it doesn't hurt for the others.
+ */
+
+ /* check for PER interrupt range */
+ if (irq < MSP_PER_INTBASE)
+ *SLP_INT_STS_REG = (1 << (irq - MSP_SLP_INTBASE));
+ else
+ *PER_INT_STS_REG = (1 << (irq - MSP_PER_INTBASE));
+}
+
+static struct irq_chip msp_slp_irq_controller = {
+ .name = "MSP_SLP",
+ .ack = ack_msp_slp_irq,
+ .mask = ack_msp_slp_irq,
+ .mask_ack = ack_msp_slp_irq,
+ .unmask = unmask_msp_slp_irq,
+};
+
+void __init msp_slp_irq_init(void)
+{
+ int i;
+
+ /* Mask/clear interrupts. */
+ *SLP_INT_MSK_REG = 0x00000000;
+ *PER_INT_MSK_REG = 0x00000000;
+ *SLP_INT_STS_REG = 0xFFFFFFFF;
+ *PER_INT_STS_REG = 0xFFFFFFFF;
+
+ /* initialize all the IRQ descriptors */
+ for (i = MSP_SLP_INTBASE; i < MSP_PER_INTBASE + 32; i++)
+ set_irq_chip_and_handler(i, &msp_slp_irq_controller
+ handle_level_irq);
+}
+
+void msp_slp_irq_dispatch(void)
+{
+ u32 pending;
+ int intbase;
+
+ intbase = MSP_SLP_INTBASE;
+ pending = *SLP_INT_STS_REG & *SLP_INT_MSK_REG;
+
+ /* check for PER interrupt */
+ if (pending == (1 << (MSP_INT_PER - MSP_SLP_INTBASE))) {
+ intbase = MSP_PER_INTBASE;
+ pending = *PER_INT_STS_REG & *PER_INT_MSK_REG;
+ }
+
+ /* check for spurious interrupt */
+ if (pending == 0x00000000) {
+ printk(KERN_ERR "Spurious %s interrupt?\n",
+ (intbase == MSP_SLP_INTBASE) ? "SLP" : "PER");
+ return;
+ }
+
+ /* dispatch the irq */
+ do_IRQ(ffs(pending) + intbase - 1);
+}
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_prom.c b/arch/mips/pmc-sierra/msp71xx/msp_prom.c
new file mode 100644
index 00000000000..e5bd5481d8d
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_prom.c
@@ -0,0 +1,566 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * PROM library initialisation code, assuming a version of
+ * pmon is the boot code.
+ *
+ * Copyright 2000,2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ppopov@mvista.com or source@mvista.com
+ *
+ * This file was derived from Carsten Langgaard's
+ * arch/mips/mips-boards/xx files.
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; 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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#ifdef CONFIG_CRAMFS
+#include <linux/cramfs_fs.h>
+#endif
+#ifdef CONFIG_SQUASHFS
+#include <linux/squashfs_fs.h>
+#endif
+
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+#include <asm-generic/sections.h>
+#include <asm/page.h>
+
+#include <msp_prom.h>
+#include <msp_regs.h>
+
+/* global PROM environment variables and pointers */
+int prom_argc;
+char **prom_argv, **prom_envp;
+int *prom_vec;
+
+/* debug flag */
+int init_debug = 1;
+
+/* memory blocks */
+struct prom_pmemblock mdesc[PROM_MAX_PMEMBLOCKS];
+
+/* default feature sets */
+static char msp_default_features[] =
+#if defined(CONFIG_PMC_MSP4200_EVAL) \
+ || defined(CONFIG_PMC_MSP4200_GW)
+ "ERER";
+#elif defined(CONFIG_PMC_MSP7120_EVAL) \
+ || defined(CONFIG_PMC_MSP7120_GW)
+ "EMEMSP";
+#elif defined(CONFIG_PMC_MSP7120_FPGA)
+ "EMEM";
+#endif
+
+/* conversion functions */
+static inline unsigned char str2hexnum(unsigned char c)
+{
+ if (c >= '0' && c <= '9')
+ return c - '0';
+ if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ return 0; /* foo */
+}
+
+static inline int str2eaddr(unsigned char *ea, unsigned char *str)
+{
+ int index = 0;
+ unsigned char num = 0;
+
+ while (*str != '\0') {
+ if ((*str == '.') || (*str == ':')) {
+ ea[index++] = num;
+ num = 0;
+ str++;
+ } else {
+ num = num << 4;
+ num |= str2hexnum(*str++);
+ }
+ }
+
+ if (index == 5) {
+ ea[index++] = num;
+ return 0;
+ } else
+ return -1;
+}
+EXPORT_SYMBOL(str2eaddr);
+
+static inline unsigned long str2hex(unsigned char *str)
+{
+ int value = 0;
+
+ while (*str) {
+ value = value << 4;
+ value |= str2hexnum(*str++);
+ }
+
+ return value;
+}
+
+/* function to query the system information */
+const char *get_system_type(void)
+{
+#if defined(CONFIG_PMC_MSP4200_EVAL)
+ return "PMC-Sierra MSP4200 Eval Board";
+#elif defined(CONFIG_PMC_MSP4200_GW)
+ return "PMC-Sierra MSP4200 VoIP Gateway";
+#elif defined(CONFIG_PMC_MSP7120_EVAL)
+ return "PMC-Sierra MSP7120 Eval Board";
+#elif defined(CONFIG_PMC_MSP7120_GW)
+ return "PMC-Sierra MSP7120 Residential Gateway";
+#elif defined(CONFIG_PMC_MSP7120_FPGA)
+ return "PMC-Sierra MSP7120 FPGA";
+#else
+ #error "What is the type of *your* MSP?"
+#endif
+}
+
+int get_ethernet_addr(char *ethaddr_name, char *ethernet_addr)
+{
+ char *ethaddr_str;
+
+ ethaddr_str = prom_getenv(ethaddr_name);
+ if (!ethaddr_str) {
+ printk(KERN_WARNING "%s not set in boot prom\n", ethaddr_name);
+ return -1;
+ }
+
+ if (str2eaddr(ethernet_addr, ethaddr_str) == -1) {
+ printk(KERN_WARNING "%s badly formatted-<%s>\n",
+ ethaddr_name, ethaddr_str);
+ return -1;
+ }
+
+ if (init_debug > 1) {
+ int i;
+ printk(KERN_DEBUG "get_ethernet_addr: for %s ", ethaddr_name);
+ for (i = 0; i < 5; i++)
+ printk(KERN_DEBUG "%02x:",
+ (unsigned char)*(ethernet_addr+i));
+ printk(KERN_DEBUG "%02x\n", *(ethernet_addr+i));
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(get_ethernet_addr);
+
+static char *get_features(void)
+{
+ char *feature = prom_getenv(FEATURES);
+
+ if (feature == NULL) {
+ /* default features based on MACHINE_TYPE */
+ feature = msp_default_features;
+ }
+
+ return feature;
+}
+
+static char test_feature(char c)
+{
+ char *feature = get_features();
+
+ while (*feature) {
+ if (*feature++ == c)
+ return *feature;
+ feature++;
+ }
+
+ return FEATURE_NOEXIST;
+}
+
+unsigned long get_deviceid(void)
+{
+ char *deviceid = prom_getenv(DEVICEID);
+
+ if (deviceid == NULL)
+ return *DEV_ID_REG;
+ else
+ return str2hex(deviceid);
+}
+
+char identify_pci(void)
+{
+ return test_feature(PCI_KEY);
+}
+EXPORT_SYMBOL(identify_pci);
+
+char identify_pcimux(void)
+{
+ return test_feature(PCIMUX_KEY);
+}
+
+char identify_sec(void)
+{
+ return test_feature(SEC_KEY);
+}
+EXPORT_SYMBOL(identify_sec);
+
+char identify_spad(void)
+{
+ return test_feature(SPAD_KEY);
+}
+EXPORT_SYMBOL(identify_spad);
+
+char identify_tdm(void)
+{
+ return test_feature(TDM_KEY);
+}
+EXPORT_SYMBOL(identify_tdm);
+
+char identify_zsp(void)
+{
+ return test_feature(ZSP_KEY);
+}
+EXPORT_SYMBOL(identify_zsp);
+
+static char identify_enetfeature(char key, unsigned long interface_num)
+{
+ char *feature = get_features();
+
+ while (*feature) {
+ if (*feature++ == key && interface_num-- == 0)
+ return *feature;
+ feature++;
+ }
+
+ return FEATURE_NOEXIST;
+}
+
+char identify_enet(unsigned long interface_num)
+{
+ return identify_enetfeature(ENET_KEY, interface_num);
+}
+EXPORT_SYMBOL(identify_enet);
+
+char identify_enetTxD(unsigned long interface_num)
+{
+ return identify_enetfeature(ENETTXD_KEY, interface_num);
+}
+EXPORT_SYMBOL(identify_enetTxD);
+
+unsigned long identify_family(void)
+{
+ unsigned long deviceid;
+
+ deviceid = get_deviceid();
+
+ return deviceid & CPU_DEVID_FAMILY;
+}
+EXPORT_SYMBOL(identify_family);
+
+unsigned long identify_revision(void)
+{
+ unsigned long deviceid;
+
+ deviceid = get_deviceid();
+
+ return deviceid & CPU_DEVID_REVISION;
+}
+EXPORT_SYMBOL(identify_revision);
+
+/* PROM environment functions */
+char *prom_getenv(char *env_name)
+{
+ /*
+ * Return a pointer to the given environment variable. prom_envp
+ * points to a null terminated array of pointers to variables.
+ * Environment variables are stored in the form of "memsize=64"
+ */
+
+ char **var = prom_envp;
+ int i = strlen(env_name);
+
+ while (*var) {
+ if (strncmp(env_name, *var, i) == 0) {
+ return (*var + strlen(env_name) + 1);
+ }
+ var++;
+ }
+
+ return NULL;
+}
+
+/* PROM commandline functions */
+char *prom_getcmdline(void)
+{
+ return &(arcs_cmdline[0]);
+}
+EXPORT_SYMBOL(prom_getcmdline);
+
+void __init prom_init_cmdline(void)
+{
+ char *cp;
+ int actr;
+
+ actr = 1; /* Always ignore argv[0] */
+
+ cp = &(arcs_cmdline[0]);
+ while (actr < prom_argc) {
+ strcpy(cp, prom_argv[actr]);
+ cp += strlen(prom_argv[actr]);
+ *cp++ = ' ';
+ actr++;
+ }
+ if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
+ --cp;
+ *cp = '\0';
+}
+
+/* memory allocation functions */
+static int __init prom_memtype_classify(unsigned int type)
+{
+ switch (type) {
+ case yamon_free:
+ return BOOT_MEM_RAM;
+ case yamon_prom:
+ return BOOT_MEM_ROM_DATA;
+ default:
+ return BOOT_MEM_RESERVED;
+ }
+}
+
+void __init prom_meminit(void)
+{
+ struct prom_pmemblock *p;
+
+ p = prom_getmdesc();
+
+ while (p->size) {
+ long type;
+ unsigned long base, size;
+
+ type = prom_memtype_classify(p->type);
+ base = p->base;
+ size = p->size;
+
+ add_memory_region(base, size, type);
+ p++;
+ }
+}
+
+void __init prom_free_prom_memory(void)
+{
+ int argc;
+ char **argv;
+ char **envp;
+ char *ptr;
+ int len = 0;
+ int i;
+ unsigned long addr;
+
+ /*
+ * preserve environment variables and command line from pmon/bbload
+ * first preserve the command line
+ */
+ for (argc = 0; argc < prom_argc; argc++) {
+ len += sizeof(char *); /* length of pointer */
+ len += strlen(prom_argv[argc]) + 1; /* length of string */
+ }
+ len += sizeof(char *); /* plus length of null pointer */
+
+ argv = kmalloc(len, GFP_KERNEL);
+ ptr = (char *) &argv[prom_argc + 1]; /* strings follow array */
+
+ for (argc = 0; argc < prom_argc; argc++) {
+ argv[argc] = ptr;
+ strcpy(ptr, prom_argv[argc]);
+ ptr += strlen(prom_argv[argc]) + 1;
+ }
+ argv[prom_argc] = NULL; /* end array with null pointer */
+ prom_argv = argv;
+
+ /* next preserve the environment variables */
+ len = 0;
+ i = 0;
+ for (envp = prom_envp; *envp != NULL; envp++) {
+ i++; /* count number of environment variables */
+ len += sizeof(char *); /* length of pointer */
+ len += strlen(*envp) + 1; /* length of string */
+ }
+ len += sizeof(char *); /* plus length of null pointer */
+
+ envp = kmalloc(len, GFP_KERNEL);
+ ptr = (char *) &envp[i+1];
+
+ for (argc = 0; argc < i; argc++) {
+ envp[argc] = ptr;
+ strcpy(ptr, prom_envp[argc]);
+ ptr += strlen(prom_envp[argc]) + 1;
+ }
+ envp[i] = NULL; /* end array with null pointer */
+ prom_envp = envp;
+
+ for (i = 0; i < boot_mem_map.nr_map; i++) {
+ if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
+ continue;
+
+ addr = boot_mem_map.map[i].addr;
+ free_init_pages("prom memory",
+ addr, addr + boot_mem_map.map[i].size);
+ }
+}
+
+struct prom_pmemblock *__init prom_getmdesc(void)
+{
+ static char memsz_env[] __initdata = "memsize";
+ static char heaptop_env[] __initdata = "heaptop";
+ char *str;
+ unsigned int memsize;
+ unsigned int heaptop;
+#ifdef CONFIG_MTD_PMC_MSP_RAMROOT
+ void *ramroot_start;
+ unsigned long ramroot_size;
+#endif
+ int i;
+
+ str = prom_getenv(memsz_env);
+ if (!str) {
+ ppfinit("memsize not set in boot prom, "
+ "set to default (32Mb)\n");
+ memsize = 0x02000000;
+ } else {
+ memsize = simple_strtol(str, NULL, 0);
+
+ if (memsize == 0) {
+ /* if memsize is a bad size, use reasonable default */
+ memsize = 0x02000000;
+ }
+
+ /* convert to physical address (removing caching bits, etc) */
+ memsize = CPHYSADDR(memsize);
+ }
+
+ str = prom_getenv(heaptop_env);
+ if (!str) {
+ heaptop = CPHYSADDR((u32)&_text);
+ ppfinit("heaptop not set in boot prom, "
+ "set to default 0x%08x\n", heaptop);
+ } else {
+ heaptop = simple_strtol(str, NULL, 16);
+ if (heaptop == 0) {
+ /* heaptop conversion bad, might have 0xValue */
+ heaptop = simple_strtol(str, NULL, 0);
+
+ if (heaptop == 0) {
+ /* heaptop still bad, use reasonable default */
+ heaptop = CPHYSADDR((u32)&_text);
+ }
+ }
+
+ /* convert to physical address (removing caching bits, etc) */
+ heaptop = CPHYSADDR((u32)heaptop);
+ }
+
+ /* the base region */
+ i = 0;
+ mdesc[i].type = BOOT_MEM_RESERVED;
+ mdesc[i].base = 0x00000000;
+ mdesc[i].size = PAGE_ALIGN(0x300 + 0x80);
+ /* jtag interrupt vector + sizeof vector */
+
+ /* PMON data */
+ if (heaptop > mdesc[i].base + mdesc[i].size) {
+ i++; /* 1 */
+ mdesc[i].type = BOOT_MEM_ROM_DATA;
+ mdesc[i].base = mdesc[i-1].base + mdesc[i-1].size;
+ mdesc[i].size = heaptop - mdesc[i].base;
+ }
+
+ /* end of PMON data to start of kernel -- probably zero .. */
+ if (heaptop != CPHYSADDR((u32)_text)) {
+ i++; /* 2 */
+ mdesc[i].type = BOOT_MEM_RAM;
+ mdesc[i].base = heaptop;
+ mdesc[i].size = CPHYSADDR((u32)_text) - mdesc[i].base;
+ }
+
+ /* kernel proper */
+ i++; /* 3 */
+ mdesc[i].type = BOOT_MEM_RESERVED;
+ mdesc[i].base = CPHYSADDR((u32)_text);
+#ifdef CONFIG_MTD_PMC_MSP_RAMROOT
+ if (get_ramroot(&ramroot_start, &ramroot_size)) {
+ /*
+ * Rootfs in RAM -- follows kernel
+ * Combine rootfs image with kernel block so a
+ * page (4k) isn't wasted between memory blocks
+ */
+ mdesc[i].size = CPHYSADDR(PAGE_ALIGN(
+ (u32)ramroot_start + ramroot_size)) - mdesc[i].base;
+ } else
+#endif
+ mdesc[i].size = CPHYSADDR(PAGE_ALIGN(
+ (u32)_end)) - mdesc[i].base;
+
+ /* Remainder of RAM -- under memsize */
+ i++; /* 5 */
+ mdesc[i].type = yamon_free;
+ mdesc[i].base = mdesc[i-1].base + mdesc[i-1].size;
+ mdesc[i].size = memsize - mdesc[i].base;
+
+ return &mdesc[0];
+}
+
+/* rootfs functions */
+#ifdef CONFIG_MTD_PMC_MSP_RAMROOT
+bool get_ramroot(void **start, unsigned long *size)
+{
+ extern char _end[];
+
+ /* Check for start following the end of the kernel */
+ void *check_start = (void *)_end;
+
+ /* Check for supported rootfs types */
+#ifdef CONFIG_CRAMFS
+ if (*(__u32 *)check_start == CRAMFS_MAGIC) {
+ /* Get CRAMFS size */
+ *start = check_start;
+ *size = PAGE_ALIGN(((struct cramfs_super *)
+ check_start)->size);
+
+ return true;
+ }
+#endif
+#ifdef CONFIG_SQUASHFS
+ if (*((unsigned int *)check_start) == SQUASHFS_MAGIC) {
+ /* Get SQUASHFS size */
+ *start = check_start;
+ *size = PAGE_ALIGN(((struct squashfs_super_block *)
+ check_start)->bytes_used);
+
+ return true;
+ }
+#endif
+
+ return false;
+}
+EXPORT_SYMBOL(get_ramroot);
+#endif
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_setup.c b/arch/mips/pmc-sierra/msp71xx/msp_setup.c
new file mode 100644
index 00000000000..8f69b789be9
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_setup.c
@@ -0,0 +1,256 @@
+/*
+ * The generic setup file for PMC-Sierra MSP processors
+ *
+ * Copyright 2005-2007 PMC-Sierra, Inc,
+ * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
+ *
+ * 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 <asm/bootinfo.h>
+#include <asm/cacheflush.h>
+#include <asm/r4kcache.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+
+#include <msp_prom.h>
+#include <msp_regs.h>
+
+#if defined(CONFIG_PMC_MSP7120_GW)
+#include <msp_regops.h>
+#include <msp_gpio.h>
+#define MSP_BOARD_RESET_GPIO 9
+#endif
+
+extern void msp_timer_init(void);
+extern void msp_serial_setup(void);
+extern void pmctwiled_setup(void);
+
+#if defined(CONFIG_PMC_MSP7120_EVAL) || \
+ defined(CONFIG_PMC_MSP7120_GW) || \
+ defined(CONFIG_PMC_MSP7120_FPGA)
+/*
+ * Performs the reset for MSP7120-based boards
+ */
+void msp7120_reset(void)
+{
+ void *start, *end, *iptr;
+ register int i;
+
+ /* Diasble all interrupts */
+ local_irq_disable();
+#ifdef CONFIG_SYS_SUPPORTS_MULTITHREADING
+ dvpe();
+#endif
+
+ /* Cache the reset code of this function */
+ __asm__ __volatile__ (
+ " .set push \n"
+ " .set mips3 \n"
+ " la %0,startpoint \n"
+ " la %1,endpoint \n"
+ " .set pop \n"
+ : "=r" (start), "=r" (end)
+ :
+ );
+
+ for (iptr = (void *)((unsigned int)start & ~(L1_CACHE_BYTES - 1));
+ iptr < end; iptr += L1_CACHE_BYTES)
+ cache_op(Fill, iptr);
+
+ __asm__ __volatile__ (
+ "startpoint: \n"
+ );
+
+ /* Put the DDRC into self-refresh mode */
+ DDRC_INDIRECT_WRITE(DDRC_CTL(10), 0xb, 1 << 16);
+
+ /*
+ * IMPORTANT!
+ * DO NOT do anything from here on out that might even
+ * think about fetching from RAM - i.e., don't call any
+ * non-inlined functions, and be VERY sure that any inline
+ * functions you do call do NOT access any sort of RAM
+ * anywhere!
+ */
+
+ /* Wait a bit for the DDRC to settle */
+ for (i = 0; i < 100000000; i++);
+
+#if defined(CONFIG_PMC_MSP7120_GW)
+ /*
+ * Set GPIO 9 HI, (tied to board reset logic)
+ * GPIO 9 is the 4th GPIO of register 3
+ *
+ * NOTE: We cannot use the higher-level msp_gpio_mode()/out()
+ * as GPIO char driver may not be enabled and it would look up
+ * data inRAM!
+ */
+ set_value_reg32(GPIO_CFG3_REG,
+ basic_mode_mask(MSP_BOARD_RESET_GPIO),
+ basic_mode(MSP_GPIO_OUTPUT, MSP_BOARD_RESET_GPIO));
+ set_reg32(GPIO_DATA3_REG,
+ basic_data_mask(MSP_BOARD_RESET_GPIO));
+
+ /*
+ * In case GPIO9 doesn't reset the board (jumper configurable!)
+ * fallback to device reset below.
+ */
+#endif
+ /* Set bit 1 of the MSP7120 reset register */
+ *RST_SET_REG = 0x00000001;
+
+ __asm__ __volatile__ (
+ "endpoint: \n"
+ );
+}
+#endif
+
+void msp_restart(char *command)
+{
+ printk(KERN_WARNING "Now rebooting .......\n");
+
+#if defined(CONFIG_PMC_MSP7120_EVAL) || \
+ defined(CONFIG_PMC_MSP7120_GW) || \
+ defined(CONFIG_PMC_MSP7120_FPGA)
+ msp7120_reset();
+#else
+ /* No chip-specific reset code, just jump to the ROM reset vector */
+ set_c0_status(ST0_BEV | ST0_ERL);
+ change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
+ flush_cache_all();
+ write_c0_wired(0);
+
+ __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
+#endif
+}
+
+void msp_halt(void)
+{
+ printk(KERN_WARNING "\n** You can safely turn off the power\n");
+ while (1)
+ /* If possible call official function to get CPU WARs */
+ if (cpu_wait)
+ (*cpu_wait)();
+ else
+ __asm__(".set\tmips3\n\t" "wait\n\t" ".set\tmips0");
+}
+
+void msp_power_off(void)
+{
+ msp_halt();
+}
+
+void __init plat_mem_setup(void)
+{
+ _machine_restart = msp_restart;
+ _machine_halt = msp_halt;
+ pm_power_off = msp_power_off;
+
+ board_time_init = msp_timer_init;
+}
+
+void __init prom_init(void)
+{
+ unsigned long family;
+ unsigned long revision;
+
+ prom_argc = fw_arg0;
+ prom_argv = (char **)fw_arg1;
+ prom_envp = (char **)fw_arg2;
+
+ /*
+ * Someday we can use this with PMON2000 to get a
+ * platform call prom routines for output etc. without
+ * having to use grody hacks. For now it's unused.
+ *
+ * struct callvectors *cv = (struct callvectors *) fw_arg3;
+ */
+ family = identify_family();
+ revision = identify_revision();
+
+ switch (family) {
+ case FAMILY_FPGA:
+ if (FPGA_IS_MSP4200(revision)) {
+ /* Old-style revision ID */
+ mips_machgroup = MACH_GROUP_MSP;
+ mips_machtype = MACH_MSP4200_FPGA;
+ } else {
+ mips_machgroup = MACH_GROUP_MSP;
+ mips_machtype = MACH_MSP_OTHER;
+ }
+ break;
+
+ case FAMILY_MSP4200:
+ mips_machgroup = MACH_GROUP_MSP;
+#if defined(CONFIG_PMC_MSP4200_EVAL)
+ mips_machtype = MACH_MSP4200_EVAL;
+#elif defined(CONFIG_PMC_MSP4200_GW)
+ mips_machtype = MACH_MSP4200_GW;
+#else
+ mips_machtype = MACH_MSP_OTHER;
+#endif
+ break;
+
+ case FAMILY_MSP4200_FPGA:
+ mips_machgroup = MACH_GROUP_MSP;
+ mips_machtype = MACH_MSP4200_FPGA;
+ break;
+
+ case FAMILY_MSP7100:
+ mips_machgroup = MACH_GROUP_MSP;
+#if defined(CONFIG_PMC_MSP7120_EVAL)
+ mips_machtype = MACH_MSP7120_EVAL;
+#elif defined(CONFIG_PMC_MSP7120_GW)
+ mips_machtype = MACH_MSP7120_GW;
+#else
+ mips_machtype = MACH_MSP_OTHER;
+#endif
+ break;
+
+ case FAMILY_MSP7100_FPGA:
+ mips_machgroup = MACH_GROUP_MSP;
+ mips_machtype = MACH_MSP7120_FPGA;
+ break;
+
+ default:
+ /* we don't recognize the machine */
+ mips_machgroup = MACH_GROUP_UNKNOWN;
+ mips_machtype = MACH_UNKNOWN;
+ break;
+ }
+
+ /* make sure we have the right initialization routine - sanity */
+ if (mips_machgroup != MACH_GROUP_MSP) {
+ ppfinit("Unknown machine group in a "
+ "MSP initialization routine\n");
+ panic("***Bogosity factor five***, exiting\n");
+ }
+
+ prom_init_cmdline();
+
+ prom_meminit();
+
+ /*
+ * Sub-system setup follows.
+ * Setup functions can either be called here or using the
+ * subsys_initcall mechanism (i.e. see msp_pci_setup). The
+ * order in which they are called can be changed by using the
+ * link order in arch/mips/pmc-sierra/msp71xx/Makefile.
+ *
+ * NOTE: Please keep sub-system specific initialization code
+ * in separate specific files.
+ */
+ msp_serial_setup();
+
+#ifdef CONFIG_PMCTWILED
+ /*
+ * Setup LED states before the subsys_initcall loads other
+ * dependant drivers/modules.
+ */
+ pmctwiled_setup();
+#endif
+}
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_time.c b/arch/mips/pmc-sierra/msp71xx/msp_time.c
new file mode 100644
index 00000000000..2a2beac5a4f
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_time.c
@@ -0,0 +1,94 @@
+/*
+ * Setting up the clock on MSP SOCs. No RTC typically.
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute 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 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/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/module.h>
+#include <linux/ptrace.h>
+
+#include <asm/mipsregs.h>
+#include <asm/time.h>
+
+#include <msp_prom.h>
+#include <msp_int.h>
+#include <msp_regs.h>
+
+void __init msp_timer_init(void)
+{
+ char *endp, *s;
+ unsigned long cpu_rate = 0;
+
+ if (cpu_rate == 0) {
+ s = prom_getenv("clkfreqhz");
+ cpu_rate = simple_strtoul(s, &endp, 10);
+ if (endp != NULL && *endp != 0) {
+ printk(KERN_ERR
+ "Clock rate in Hz parse error: %s\n", s);
+ cpu_rate = 0;
+ }
+ }
+
+ if (cpu_rate == 0) {
+ s = prom_getenv("clkfreq");
+ cpu_rate = 1000 * simple_strtoul(s, &endp, 10);
+ if (endp != NULL && *endp != 0) {
+ printk(KERN_ERR
+ "Clock rate in MHz parse error: %s\n", s);
+ cpu_rate = 0;
+ }
+ }
+
+ if (cpu_rate == 0) {
+#if defined(CONFIG_PMC_MSP7120_EVAL) \
+ || defined(CONFIG_PMC_MSP7120_GW)
+ cpu_rate = 400000000;
+#elif defined(CONFIG_PMC_MSP7120_FPGA)
+ cpu_rate = 25000000;
+#else
+ cpu_rate = 150000000;
+#endif
+ printk(KERN_ERR
+ "Failed to determine CPU clock rate, "
+ "assuming %ld hz ...\n", cpu_rate);
+ }
+
+ printk(KERN_WARNING "Clock rate set to %ld\n", cpu_rate);
+
+ /* timer frequency is 1/2 clock rate */
+ mips_hpt_frequency = cpu_rate/2;
+}
+
+
+void __init plat_timer_setup(struct irqaction *irq)
+{
+#ifdef CONFIG_IRQ_MSP_CIC
+ /* we are using the vpe0 counter for timer interrupts */
+ setup_irq(MSP_INT_VPE0_TIMER, irq);
+#else
+ /* we are using the mips counter for timer interrupts */
+ setup_irq(MSP_INT_TIMER, irq);
+#endif
+}
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_usb.c b/arch/mips/pmc-sierra/msp71xx/msp_usb.c
new file mode 100644
index 00000000000..21f9c70b692
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_usb.c
@@ -0,0 +1,150 @@
+/*
+ * The setup file for USB related hardware on PMC-Sierra MSP processors.
+ *
+ * Copyright 2006-2007 PMC-Sierra, Inc.
+ *
+ * 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/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+
+#include <asm/mipsregs.h>
+
+#include <msp_regs.h>
+#include <msp_int.h>
+#include <msp_prom.h>
+
+#if defined(CONFIG_USB_EHCI_HCD)
+static struct resource msp_usbhost_resources [] = {
+ [0] = {
+ .start = MSP_USB_BASE_START,
+ .end = MSP_USB_BASE_END,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = MSP_INT_USB,
+ .end = MSP_INT_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 msp_usbhost_dma_mask = DMA_32BIT_MASK;
+
+static struct platform_device msp_usbhost_device = {
+ .name = "pmcmsp-ehci",
+ .id = 0,
+ .dev = {
+ .dma_mask = &msp_usbhost_dma_mask,
+ .coherent_dma_mask = DMA_32BIT_MASK,
+ },
+ .num_resources = ARRAY_SIZE (msp_usbhost_resources),
+ .resource = msp_usbhost_resources,
+};
+#endif /* CONFIG_USB_EHCI_HCD */
+
+#if defined(CONFIG_USB_GADGET)
+static struct resource msp_usbdev_resources [] = {
+ [0] = {
+ .start = MSP_USB_BASE,
+ .end = MSP_USB_BASE_END,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = MSP_INT_USB,
+ .end = MSP_INT_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 msp_usbdev_dma_mask = DMA_32BIT_MASK;
+
+static struct platform_device msp_usbdev_device = {
+ .name = "msp71xx_udc",
+ .id = 0,
+ .dev = {
+ .dma_mask = &msp_usbdev_dma_mask,
+ .coherent_dma_mask = DMA_32BIT_MASK,
+ },
+ .num_resources = ARRAY_SIZE (msp_usbdev_resources),
+ .resource = msp_usbdev_resources,
+};
+#endif /* CONFIG_USB_GADGET */
+
+#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET)
+static struct platform_device *msp_devs[1];
+#endif
+
+
+static int __init msp_usb_setup(void)
+{
+#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET)
+ char *strp;
+ char envstr[32];
+ unsigned int val = 0;
+ int result = 0;
+
+ /*
+ * construct environment name usbmode
+ * set usbmode <host/device> as pmon environment var
+ */
+ snprintf((char *)&envstr[0], sizeof(envstr), "usbmode");
+
+#if defined(CONFIG_USB_EHCI_HCD)
+ /* default to host mode */
+ val = 1;
+#endif
+
+ /* get environment string */
+ strp = prom_getenv((char *)&envstr[0]);
+ if (strp) {
+ if (!strcmp(strp, "device"))
+ val = 0;
+ }
+
+ if (val) {
+#if defined(CONFIG_USB_EHCI_HCD)
+ /* get host mode device */
+ msp_devs[0] = &msp_usbhost_device;
+ ppfinit("platform add USB HOST done %s.\n",
+ msp_devs[0]->name);
+
+ result = platform_add_devices(msp_devs, ARRAY_SIZE (msp_devs));
+#endif /* CONFIG_USB_EHCI_HCD */
+ }
+#if defined(CONFIG_USB_GADGET)
+ else {
+ /* get device mode structure */
+ msp_devs[0] = &msp_usbdev_device;
+ ppfinit("platform add USB DEVICE done %s.\n",
+ msp_devs[0]->name);
+
+ result = platform_add_devices(msp_devs, ARRAY_SIZE (msp_devs));
+ }
+#endif /* CONFIG_USB_GADGET */
+#endif /* CONFIG_USB_EHCI_HCD || CONFIG_USB_GADGET */
+
+ return result;
+}
+
+subsys_initcall(msp_usb_setup);