Merge commit 'origin/master' into next

9 files changed, 365 insertions, 5 deletions

diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c
index 9141e3690731..efed8897bef3 100644
--- a/arch/xtensa/platforms/iss/console.c
+++ b/arch/xtensa/platforms/iss/console.c
@@ -1,5 +1,5 @@
 /*
- * arch/xtensa/platform-iss/console.c
+ * arch/xtensa/platforms/iss/console.c
  *
  * 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
@@ -24,7 +24,7 @@
 #include <asm/uaccess.h>
 #include <asm/irq.h>
 
-#include <asm/platform/simcall.h>
+#include <platform/simcall.h>
 
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
diff --git a/arch/xtensa/platforms/iss/include/platform/hardware.h b/arch/xtensa/platforms/iss/include/platform/hardware.h
new file mode 100644
index 000000000000..6930c12adc16
--- /dev/null
+++ b/arch/xtensa/platforms/iss/include/platform/hardware.h
@@ -0,0 +1,29 @@
+/*
+ * include/asm-xtensa/platform-iss/hardware.h
+ *
+ * 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.
+ *
+ * Copyright (C) 2001 Tensilica Inc.
+ */
+
+/*
+ * This file contains the default configuration of ISS.
+ */
+
+#ifndef _XTENSA_PLATFORM_ISS_HARDWARE_H
+#define _XTENSA_PLATFORM_ISS_HARDWARE_H
+
+/*
+ * Memory configuration.
+ */
+
+#define PLATFORM_DEFAULT_MEM_START	0x00000000
+#define PLATFORM_DEFAULT_MEM_SIZE	0x08000000
+
+/*
+ * Interrupt configuration.
+ */
+
+#endif /* _XTENSA_PLATFORM_ISS_HARDWARE_H */
diff --git a/arch/xtensa/platforms/iss/include/platform/simcall.h b/arch/xtensa/platforms/iss/include/platform/simcall.h
new file mode 100644
index 000000000000..b7952c06a2b7
--- /dev/null
+++ b/arch/xtensa/platforms/iss/include/platform/simcall.h
@@ -0,0 +1,62 @@
+/*
+ * include/asm-xtensa/platform-iss/simcall.h
+ *
+ * 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.
+ *
+ * Copyright (C) 2001 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PLATFORM_ISS_SIMCALL_H
+#define _XTENSA_PLATFORM_ISS_SIMCALL_H
+
+
+/*
+ *  System call like services offered by the simulator host.
+ */
+
+#define SYS_nop		0	/* unused */
+#define SYS_exit	1	/*x*/
+#define SYS_fork	2
+#define SYS_read	3	/*x*/
+#define SYS_write	4	/*x*/
+#define SYS_open	5	/*x*/
+#define SYS_close	6	/*x*/
+#define SYS_rename	7	/*x 38 - waitpid */
+#define SYS_creat	8	/*x*/
+#define SYS_link	9	/*x (not implemented on WIN32) */
+#define SYS_unlink	10	/*x*/
+#define SYS_execv	11	/* n/a - execve */
+#define SYS_execve	12	/* 11 - chdir */
+#define SYS_pipe	13	/* 42 - time */
+#define SYS_stat	14	/* 106 - mknod */
+#define SYS_chmod	15
+#define SYS_chown	16	/* 202 - lchown */
+#define SYS_utime	17	/* 30 - break */
+#define SYS_wait	18	/* n/a - oldstat */
+#define SYS_lseek	19	/*x*/
+#define SYS_getpid	20
+#define SYS_isatty	21	/* n/a - mount */
+#define SYS_fstat	22	/* 108 - oldumount */
+#define SYS_time	23	/* 13 - setuid */
+#define SYS_gettimeofday 24	/*x 78 - getuid (not implemented on WIN32) */
+#define SYS_times	25	/*X 43 - stime (Xtensa-specific implementation) */
+#define SYS_socket      26
+#define SYS_sendto      27
+#define SYS_recvfrom    28
+#define SYS_select_one  29      /* not compitible select, one file descriptor at the time */
+#define SYS_bind        30
+#define SYS_ioctl	31
+
+/*
+ * SYS_select_one specifiers
+ */
+
+#define  XTISS_SELECT_ONE_READ    1
+#define  XTISS_SELECT_ONE_WRITE   2
+#define  XTISS_SELECT_ONE_EXCEPT  3
+
+
+#endif /* _XTENSA_PLATFORM_ISS_SIMCALL_H */
+
diff --git a/arch/xtensa/platforms/iss/io.c b/arch/xtensa/platforms/iss/io.c
index 5b161a5cb65f..571d0b24f895 100644
--- a/arch/xtensa/platforms/iss/io.c
+++ b/arch/xtensa/platforms/iss/io.c
@@ -3,7 +3,7 @@
 #if 0
 
 #include <asm/io.h>
-#include <xtensa/simcall.h>
+#include <platform/platform-iss/simcall.h>
 
 extern int __simc ();
 
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index 64f057d89e73..edad4156d89a 100644
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -1,6 +1,6 @@
 /*
  *
- * arch/xtensa/platform-iss/network.c
+ * arch/xtensa/platforms/iss/network.c
  *
  * Platform specific initialization.
  *
@@ -33,7 +33,7 @@
 #include <linux/rtnetlink.h>
 #include <linux/platform_device.h>
 
-#include <asm/platform/simcall.h>
+#include <platform/simcall.h>
 
 #define DRIVER_NAME "iss-netdev"
 #define ETH_MAX_PACKET 1500
diff --git a/arch/xtensa/platforms/xt2000/Makefile b/arch/xtensa/platforms/xt2000/Makefile
new file mode 100644
index 000000000000..54d018e45bfc
--- /dev/null
+++ b/arch/xtensa/platforms/xt2000/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the Tensilica XT2000 Emulation Board
+#
+
+obj-y 			= setup.o
diff --git a/arch/xtensa/platforms/xt2000/include/platform/hardware.h b/arch/xtensa/platforms/xt2000/include/platform/hardware.h
new file mode 100644
index 000000000000..41459ad07766
--- /dev/null
+++ b/arch/xtensa/platforms/xt2000/include/platform/hardware.h
@@ -0,0 +1,55 @@
+/*
+ * platform/hardware.h
+ *
+ * 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.
+ *
+ * Copyright (C) 2001 Tensilica Inc.
+ */
+
+/*
+ * This file contains the hardware configuration of the XT2000 board.
+ */
+
+#ifndef _XTENSA_XT2000_HARDWARE_H
+#define _XTENSA_XT2000_HARDWARE_H
+
+#include <variant/core.h>
+#include <asm/io.h>
+
+/* 
+ * Memory configuration.
+ */
+
+#define PLATFORM_DEFAULT_MEM_START 0x00000000
+#define PLATFORM_DEFAULT_MEM_SIZE 0x08000000
+
+/*
+ * Number of platform IRQs
+ */
+#define PLATFORM_NR_IRQS 3
+/*
+ * On-board components.
+ */
+
+#define SONIC83934_INTNUM	XCHAL_EXTINT3_NUM
+#define SONIC83934_ADDR		IOADDR(0x0d030000)
+
+/*
+ * V3-PCI
+ */
+
+/* The XT2000 uses the V3 as a cascaded interrupt controller for the PCI bus */
+
+#define IRQ_PCI_A		(XCHAL_NUM_INTERRUPTS + 0)
+#define IRQ_PCI_B		(XCHAL_NUM_INTERRUPTS + 1)
+#define IRQ_PCI_C		(XCHAL_NUM_INTERRUPTS + 2)
+
+/*
+ * Various other components.
+ */
+
+#define XT2000_LED_ADDR		IOADDR(0x0d040000)
+
+#endif /* _XTENSA_XT2000_HARDWARE_H */
diff --git a/arch/xtensa/platforms/xt2000/include/platform/serial.h b/arch/xtensa/platforms/xt2000/include/platform/serial.h
new file mode 100644
index 000000000000..7226cf732b47
--- /dev/null
+++ b/arch/xtensa/platforms/xt2000/include/platform/serial.h
@@ -0,0 +1,28 @@
+/*
+ * platform/serial.h
+ *
+ * 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.
+ *
+ * Copyright (C) 2001 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_XT2000_SERIAL_H
+#define _XTENSA_XT2000_SERIAL_H
+
+#include <variant/core.h>
+#include <asm/io.h>
+
+/*  National-Semi PC16552D DUART:  */
+
+#define DUART16552_1_INTNUM	XCHAL_EXTINT4_NUM
+#define DUART16552_2_INTNUM	XCHAL_EXTINT5_NUM
+
+#define DUART16552_1_ADDR	IOADDR(0x0d050020)	/* channel 1 */
+#define DUART16552_2_ADDR	IOADDR(0x0d050000)	/* channel 2 */
+
+#define DUART16552_XTAL_FREQ	18432000	/* crystal frequency in Hz */
+#define BASE_BAUD ( DUART16552_XTAL_FREQ / 16 )
+
+#endif /* _XTENSA_XT2000_SERIAL_H */
diff --git a/arch/xtensa/platforms/xt2000/setup.c b/arch/xtensa/platforms/xt2000/setup.c
new file mode 100644
index 000000000000..9e83940ac265
--- /dev/null
+++ b/arch/xtensa/platforms/xt2000/setup.c
@@ -0,0 +1,181 @@
+/*
+ * arch/xtensa/platforms/xt2000/setup.c
+ *
+ * Platform specific functions for the XT2000 board.
+ *
+ * Authors:	Chris Zankel <chris@zankel.net>
+ *		Joe Taylor <joe@tensilica.com>
+ *
+ * Copyright 2001 - 2004 Tensilica 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.
+ *
+ */
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/kdev_t.h>
+#include <linux/types.h>
+#include <linux/major.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/stringify.h>
+#include <linux/platform_device.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+
+#include <asm/processor.h>
+#include <asm/platform.h>
+#include <asm/bootparam.h>
+#include <platform/hardware.h>
+#include <platform/serial.h>
+
+/* Assumes s points to an 8-chr string.  No checking for NULL. */
+
+static void led_print (int f, char *s)
+{
+	unsigned long* led_addr = (unsigned long*) (XT2000_LED_ADDR + 0xE0) + f;
+	int i;
+	for (i = f; i < 8; i++)
+		if ((*led_addr++ = *s++) == 0)
+		    break;
+}
+
+void platform_halt(void)
+{
+	led_print (0, "  HALT  ");
+	local_irq_disable();
+	while (1);
+}
+
+void platform_power_off(void)
+{
+	led_print (0, "POWEROFF");
+	local_irq_disable();
+	while (1);
+}
+
+void platform_restart(void)
+{
+	/* Flush and reset the mmu, simulate a processor reset, and
+	 * jump to the reset vector. */
+
+	__asm__ __volatile__ ("movi	a2, 15\n\t"
+			      "wsr	a2, " __stringify(ICOUNTLEVEL) "\n\t"
+			      "movi	a2, 0\n\t"
+			      "wsr	a2, " __stringify(ICOUNT) "\n\t"
+			      "wsr	a2, " __stringify(IBREAKENABLE) "\n\t"
+			      "wsr	a2, " __stringify(LCOUNT) "\n\t"
+			      "movi	a2, 0x1f\n\t"
+			      "wsr	a2, " __stringify(PS) "\n\t"
+			      "isync\n\t"
+			      "jx	%0\n\t"
+			      :
+			      : "a" (XCHAL_RESET_VECTOR_VADDR)
+			      : "a2"
+			      );
+
+	/* control never gets here */
+}
+
+void __init platform_setup(char** cmdline)
+{
+	led_print (0, "LINUX   ");
+}
+
+/* early initialization */
+
+extern sysmem_info_t __initdata sysmem;
+
+void platform_init(bp_tag_t* first)
+{
+	/* Set default memory block if not provided by the bootloader. */
+
+	if (sysmem.nr_banks == 0) {
+		sysmem.nr_banks = 1;
+		sysmem.bank[0].start = PLATFORM_DEFAULT_MEM_START;
+		sysmem.bank[0].end = PLATFORM_DEFAULT_MEM_START
+				     + PLATFORM_DEFAULT_MEM_SIZE;
+	}
+}
+
+/* Heartbeat. Let the LED blink. */
+
+void platform_heartbeat(void)
+{
+	static int i=0, t = 0;
+
+	if (--t < 0)
+	{
+		t = 59;
+		led_print(7, i ? ".": " ");
+		i ^= 1;
+	}
+}
+
+//#define RS_TABLE_SIZE 2
+//#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF|ASYNC_SKIP_TEST)
+
+#define _SERIAL_PORT(_base,_irq)					\
+{									\
+	.mapbase	= (_base),					\
+	.membase	= (void*)(_base),				\
+	.irq		= (_irq),					\
+	.uartclk	= DUART16552_XTAL_FREQ,				\
+	.iotype		= UPIO_MEM,					\
+	.flags		= UPF_BOOT_AUTOCONF,				\
+	.regshift	= 2,						\
+}
+
+static struct plat_serial8250_port xt2000_serial_data[] = {
+#if XCHAL_HAVE_BE
+	_SERIAL_PORT(DUART16552_1_ADDR + 3, DUART16552_1_INTNUM),
+	_SERIAL_PORT(DUART16552_2_ADDR + 3, DUART16552_2_INTNUM),
+#else
+	_SERIAL_PORT(DUART16552_1_ADDR, DUART16552_1_INTNUM),
+	_SERIAL_PORT(DUART16552_2_ADDR, DUART16552_2_INTNUM),
+#endif
+	{ }
+};
+
+static struct platform_device xt2000_serial8250_device = {
+	.name		= "serial8250",
+	.id		= PLAT8250_DEV_PLATFORM,
+	.dev		= {
+	    .platform_data = xt2000_serial_data,
+	},
+};
+
+static struct resource xt2000_sonic_res[] = {
+	{
+		.start = SONIC83934_ADDR,
+		.end   = SONIC83934_ADDR + 0xff,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = SONIC83934_INTNUM,
+		.end = SONIC83934_INTNUM,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device xt2000_sonic_device = {
+	.name		= "xtsonic",
+	.num_resources	= ARRAY_SIZE(xt2000_sonic_res),
+	.resource		= xt2000_sonic_res,
+};
+
+static int __init xt2000_setup_devinit(void)
+{
+	platform_device_register(&xt2000_serial8250_device);
+	platform_device_register(&xt2000_sonic_device);
+
+	return 0;
+}
+
+device_initcall(xt2000_setup_devinit);