NEC VR5701 support

Index: linux-2.6.10/arch/mips/vr5701/tcube/irq_vr5701.c
===================================================================
@@ -0,0 +1,194 @@
+/*
+ * arch/mips/vr5701/tcube/irq_vr5701.c
+ *
+ * This file defines the irq handler for NEC Electronics Corporation VR5701 SolutionGearII
+ *
+ * Author: Sergey Podstavin <[email protected]>
+ *
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+/*
+ * NEC Electronics Corporation VR5701 SolutionGearII defines 32 IRQs.
+ *
+ */
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+
+#include <asm/debug.h>
+#include <asm/tcube.h>
+
+static int vr5701_irq_base = -1;
+
+void ll_vr5701_irq_disable(int vr5701_irq, int ack);
+
+static void vr5701_irq_enable(unsigned int irq)
+{
+	ll_vr5701_irq_enable(irq - vr5701_irq_base);
+}
+
+static void vr5701_irq_disable(unsigned int irq)
+{
+	ll_vr5701_irq_disable(irq - vr5701_irq_base, 0);
+}
+
+static unsigned int vr5701_irq_startup(unsigned int irq)
+{
+	vr5701_irq_enable(irq);
+	return 0;
+}
+
+static void vr5701_irq_ack(unsigned int irq)
+{
+	unsigned long flags;
+	local_irq_save(flags);
+
+	/* clear the interrupt bit for edge trigger */
+	/* some irqs require the driver to clear the sources */
+	if (irq < vr5701_irq_base + NUM_5701_IRQ) {
+		ddb_out32(INT_CLR, 1 << (irq - vr5701_irq_base));
+	}
+	/* don't need for PCIs, for they are level triger */
+
+	/* disable interrupt - some handler will re-enable the irq
+	 * and if the interrupt is leveled, we will have infinite loop
+	 */
+	ll_vr5701_irq_disable(irq - vr5701_irq_base, 1);
+	local_irq_restore(flags);
+}
+
+static void vr5701_irq_end(unsigned int irq)
+{
+	unsigned long flags;
+	local_irq_save(flags);
+
+	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
+		ll_vr5701_irq_enable(irq - vr5701_irq_base);
+	}
+	local_irq_restore(flags);
+}
+
+struct hw_interrupt_type vr5701_irq_type = {
+	"vr5701_irq",
+	vr5701_irq_startup,
+	vr5701_irq_disable,
+	vr5701_irq_enable,
+	vr5701_irq_disable,
+	vr5701_irq_ack,
+	vr5701_irq_end,
+	NULL			/* no affinity stuff for UP */
+};
+
+void vr5701_irq_init(u32 irq_base)
+{
+	extern irq_desc_t irq_desc[];
+	u32 i;
+	vr5701_irq_base = irq_base;
+	for (i = irq_base;
+	     i < irq_base + NUM_5701_IRQ + NUM_EPCI_IRQ + NUM_IPCI_IRQ; i++) {
+		irq_desc[i].status = IRQ_DISABLED;
+		irq_desc[i].action = 0;
+		irq_desc[i].depth = 1;
+		irq_desc[i].handler = &vr5701_irq_type;
+	}
+}
+
+int vr5701_irq_to_irq(int irq)
+{
+	return irq + vr5701_irq_base;
+}
+
+void ll_vr5701_irq_route(int vr5701_irq, int ip)
+{
+	u32 reg_value;
+	u32 reg_bitmask;
+	u32 reg_index;
+
+	if (vr5701_irq >= NUM_5701_IRQ) {
+		if (vr5701_irq >= NUM_5701_IRQ + NUM_EPCI_IRQ) {
+			vr5701_irq = 7;
+		} else {
+			vr5701_irq = 6;
+		}
+	}
+	reg_index = INT_ROUTE0 + vr5701_irq / 8 * 4;
+	reg_value = ddb_in32(reg_index);
+	reg_bitmask = 7 << (vr5701_irq % 8 * 4);
+	reg_value &= ~reg_bitmask;
+	reg_value |= ip << (vr5701_irq % 8 * 4);
+	ddb_out32(reg_index, reg_value);
+}
+
+void ll_vr5701_irq_enable(int vr5701_irq)
+{
+	u16 reg_value;
+	u32 reg_bitmask;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	irq_desc[vr5701_irq_base + vr5701_irq].depth++;
+
+	if (vr5701_irq >= NUM_5701_IRQ) {
+		if (vr5701_irq >= NUM_5701_IRQ + NUM_EPCI_IRQ) {
+			reg_value = ddb_in32(IPCI_INTM);
+			reg_bitmask =
+			    1 << (vr5701_irq - NUM_5701_IRQ - NUM_EPCI_IRQ);
+			ddb_out32(IPCI_INTM, reg_value | reg_bitmask);
+			vr5701_irq = 7;
+		} else {
+			reg_value = ddb_in32(EPCI_INTM);
+			reg_bitmask = 1 << (vr5701_irq - NUM_5701_IRQ);
+			ddb_out32(EPCI_INTM, reg_value | reg_bitmask);
+			vr5701_irq = 6;
+		}
+	}
+	reg_value = ddb_in32(INT_MASK);
+	ddb_out32(INT_MASK, reg_value | (1 << vr5701_irq));
+	local_irq_restore(flags);
+}
+
+void ll_vr5701_irq_disable(int vr5701_irq, int ack)
+{
+	u16 reg_value;
+	u32 udummy;
+	u32 reg_bitmask;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	if (!ack) {
+		irq_desc[vr5701_irq_base + vr5701_irq].depth--;
+		if (irq_desc[vr5701_irq_base + vr5701_irq].depth) {
+			local_irq_restore(flags);
+			return;
+		}
+	}
+
+	if (vr5701_irq >= NUM_5701_IRQ) {
+		if (vr5701_irq >= NUM_5701_IRQ + NUM_EPCI_IRQ) {
+			goto DISABLE_IRQ_IPCI;
+		} else {
+			goto DISABLE_IRQ_EPCI;
+		}
+	}
+	reg_value = ddb_in32(INT_MASK);
+	ddb_out32(INT_MASK, reg_value & ~(1 << vr5701_irq));
+	udummy = ddb_in32(INT_MASK);
+	local_irq_restore(flags);
+	return;
+
+      DISABLE_IRQ_IPCI:
+	reg_value = ddb_in32(IPCI_INTM);
+	reg_bitmask = 1 << (vr5701_irq - NUM_5701_IRQ - NUM_EPCI_IRQ);
+	ddb_out32(IPCI_INTM, reg_value & ~reg_bitmask);
+	local_irq_restore(flags);
+	return;
+
+      DISABLE_IRQ_EPCI:
+	reg_value = ddb_in32(EPCI_INTM);
+	reg_bitmask = 1 << (vr5701_irq - NUM_5701_IRQ);
+	ddb_out32(EPCI_INTM, reg_value & ~reg_bitmask);
+	local_irq_restore(flags);
+}

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Index: linux-2.6.10/include/asm-mips/serial.h
===================================================================
@@ -412,6 +412,21 @@
 #define DDB5477_SERIAL_PORT_DEFNS
 #endif
 
+#ifdef CONFIG_TCUBE
+#include <asm/tcube.h>
+#define TCUBE_SERIAL_PORT_DEFNS                                   \
+	{ baud_base: BASE_BAUD, irq: 16, flags: STD_COM_FLAGS,          \
+	  iomem_base: (u8*)0xbe000a00, iomem_reg_shift: 3,              \
+	  io_type: SERIAL_IO_MEM},\
+	{ baud_base: BASE_BAUD, irq: 17, flags: STD_COM_FLAGS,          \
+	  iomem_base: (u8*)0xbe000a40, iomem_reg_shift: 3,              \
+	  io_type: SERIAL_IO_MEM},
+#else
+#define TCUBE_SERIAL_PORT_DEFNS
+#endif
+
+
+
 #ifdef CONFIG_SGI_IP32
 /*
  * The IP32 (SGI O2) has standard serial ports (UART 16550A) mapped in memory

@@ -439,6 +454,7 @@
 	MOMENCO_OCELOT_SERIAL_PORT_DEFNS		\
 	MOMENCO_OCELOT_3_SERIAL_PORT_DEFNS		\
 	TXX927_SERIAL_PORT_DEFNS                        \
-	AU1000_SERIAL_PORT_DEFNS
+	AU1000_SERIAL_PORT_DEFNS                        \
+	TCUBE_SERIAL_PORT_DEFNS
 
 #endif /* _ASM_SERIAL_H */

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Index: linux-2.6.10/include/asm-mips/tlb.h
===================================================================
@@ -6,7 +6,7 @@
  * we need to flush cache for area to be unmapped.
  */
 #ifdef CONFIG_PREEMPT_RT
-#ifdef CONFIG_CPU_MIPS32
+#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_R5500)
 /*
  * We need the cache flush in case of such processors, eg. MIPS Malta
  */

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Index: linux-2.6.10/include/linux/pci_ids.h
===================================================================
@@ -555,6 +555,7 @@
 #define PCI_DEVICE_ID_MIRO_DC30PLUS	0xd801
 
 #define PCI_VENDOR_ID_NEC		0x1033
+#define PCI_DEVICE_ID_NEC_USB_AND_IDE	0x0000 /* USB 1.1 or IDE Controller*/
 #define PCI_DEVICE_ID_NEC_CBUS_1	0x0001 /* PCI-Cbus Bridge */
 #define PCI_DEVICE_ID_NEC_LOCAL		0x0002 /* Local Bridge */
 #define PCI_DEVICE_ID_NEC_ATM		0x0003 /* ATM LAN Controller */

@@ -1643,6 +1644,11 @@
 #define PCI_DEVICE_ID_SATSAGEM_PCR2101	0x5352
 #define PCI_DEVICE_ID_SATSAGEM_TELSATTURBO 0x5a4b
 
+#define PCI_VENDOR_ID_SMI		0x126f
+#define PCI_DEVICE_ID_SMI_LYNX_EM	0x0710
+#define PCI_DEVICE_ID_SMI_LYNX_EM_PLUS	0x0712
+#define PCI_DEVICE_ID_SMI_LYNX_3DM	0x0720
+
 #define PCI_VENDOR_ID_HUGHES		0x1273
 #define PCI_DEVICE_ID_HUGHES_DIRECPC	0x0002
 

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Index: linux-2.6.10/include/asm-mips/bootinfo.h
===================================================================
@@ -213,6 +213,12 @@
 #define MACH_GROUP_TITAN       22	/* PMC-Sierra Titan		*/
 #define  MACH_TITAN_YOSEMITE	1	/* PMC-Sierra Yosemite		*/
 
+/*
+ * Valid machtype for group SHIMA
+ */
+#define MACH_GROUP_SHIMA       24 /* SHIMAFUJI                              */
+#define MACH_SHIMA_TCUBE         0      /* SHIMAFUJI T-Cube(Vr5701) */
+
 #define CL_SIZE			COMMAND_LINE_SIZE
 
 const char *get_system_type(void);

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Index: linux-2.6.10/arch/mips/mm/tlbex.c
===================================================================
@@ -784,6 +784,7 @@ static __init void __attribute__((unused
 	case CPU_R5000:
 	case CPU_R5000A:
 	case CPU_NEVADA:
+	case CPU_R5500:
 		i_nop(p);
 		i_tlbp(p);
 		break;

@@ -831,6 +832,7 @@ static __init void build_tlb_write_entry
 	case CPU_R4600:
 	case CPU_R4700:
 	case CPU_R5000:
+	case CPU_R5500:             
 	case CPU_R5000A:
 	case CPU_5KC:
 	case CPU_TX49XX:

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Index: linux-2.6.10/arch/mips/kernel/cpu-probe.c
===================================================================
@@ -98,6 +98,7 @@ static inline void check_wait(void)
 	case CPU_R4650:
 	case CPU_R4700:
 	case CPU_R5000:
+	case CPU_R5500:
 	case CPU_NEVADA:
 	case CPU_RM7000:
 	case CPU_RM9000:

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Index: linux-2.6.10/mvl_patches/pro-0004.c
===================================================================

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Index: linux-2.6.10/include/linux/lsppatchlevel.h
===================================================================

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