Merge git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
  xtensa: Update platform files to reflect new location of the header files.
  xtensa: switch to packed struct unaligned access implementation
  xtensa: Add xt2000 support files.
  xtensa: move headers files to arch/xtensa/include
  xtensa: use the new byteorder headers

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);