6 files changed, 34 insertions, 16 deletions

diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
index 805535aa505e..27fa81bef6a0 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
@@ -26,7 +26,7 @@ static int pfc_divisors[] = { 1, 1, 1, 1, 1, 1, 1, 18,
 
 static void master_clk_init(struct clk *clk)
 {
-        clk->rate *= 36;
+        clk->rate *= pfc_divisors[ctrl_inl(FRQMR1) & 0x000f];
 }
 
 static struct clk_ops sh7785_master_clk_ops = {
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index 926b2e7b11c1..718bd2356b34 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -1,9 +1,6 @@
-/* $Id: entry.S,v 1.37 2004/06/11 13:02:46 doyu Exp $
- *
- *  linux/arch/sh/entry.S
- *
+/* 
  *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
- *  Copyright (C) 2003  Paul Mundt
+ *  Copyright (C) 2003 - 2008  Paul Mundt
  *
  * 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
@@ -262,6 +259,7 @@ __restore_all:
 
         .align  2
 syscall_badsys:                 ! Bad syscall number
+        get_current_thread_info r8, r0
         mov     #-ENOSYS, r0
         bra     resume_userspace
          mov.l  r0, @(OFF_R0,r15)       ! Return value
@@ -281,7 +279,9 @@ debug_trap:
         mov.l   1f, r8
         add     r0, r8
         mov.l   @r8, r8
-        jmp     @r8
+        jsr     @r8
+         nop
+        bra     __restore_all
          nop
 
         .align  2
diff --git a/arch/sh/kernel/head_32.S b/arch/sh/kernel/head_32.S
index d67d7ed09f22..ae0a382a82eb 100644
--- a/arch/sh/kernel/head_32.S
+++ b/arch/sh/kernel/head_32.S
@@ -30,8 +30,8 @@ ENTRY(empty_zero_page)
         .long   0               /* RAMDISK_FLAGS */
         .long   0x0200          /* ORIG_ROOT_DEV */
         .long   1               /* LOADER_TYPE */
-        .long   0x00360000      /* INITRD_START */
-        .long   0x000a0000      /* INITRD_SIZE */
+        .long   0x00000000      /* INITRD_START */
+        .long   0x00000000      /* INITRD_SIZE */
 #ifdef CONFIG_32BIT
         .long   0x53453f00 + 32 /* "SE?" = 32 bit */
 #else
diff --git a/arch/sh/kernel/kgdb_stub.c b/arch/sh/kernel/kgdb_stub.c
index 832641bbd47d..bf8ac4c71640 100644
--- a/arch/sh/kernel/kgdb_stub.c
+++ b/arch/sh/kernel/kgdb_stub.c
@@ -274,8 +274,7 @@ static char *mem_to_hex(const char *mem, char *buf, const int count)
         }
         for (i = 0; i < count; i++) {
                 ch = *mem++;
-                *buf++ = highhex(ch);
-                *buf++ = lowhex(ch);
+                buf = pack_hex_byte(buf, ch);
         }
         *buf = 0;
         return (buf);
@@ -427,8 +426,8 @@ static void put_packet(char *buffer)
 
                 /* '#' Separator, put high and low components of checksum */
                 put_debug_char('#');
-                put_debug_char(highhex(checksum));
-                put_debug_char(lowhex(checksum));
+                put_debug_char(hex_asc_hi(checksum));
+                put_debug_char(hex_asc_lo(checksum));
         }
         while ((get_debug_char()) != '+');      /* While no ack */
 }
@@ -650,8 +649,8 @@ static void undo_single_step(void)
 static void send_signal_msg(const int signum)
 {
         out_buffer[0] = 'S';
-        out_buffer[1] = highhex(signum);
-        out_buffer[2] = lowhex(signum);
+        out_buffer[1] = hex_asc_hi(signum);
+        out_buffer[2] = hex_asc_lo(signum);
         out_buffer[3] = 0;
         put_packet(out_buffer);
 }
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 516bde9c50fa..bca2bbc575db 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -292,6 +292,17 @@ void __init setup_arch(char **cmdline_p)
 
         ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
 
+        printk(KERN_NOTICE "Boot params:\n"
+                           "... MOUNT_ROOT_RDONLY - %08lx\n"
+                           "... RAMDISK_FLAGS     - %08lx\n"
+                           "... ORIG_ROOT_DEV     - %08lx\n"
+                           "... LOADER_TYPE       - %08lx\n"
+                           "... INITRD_START      - %08lx\n"
+                           "... INITRD_SIZE       - %08lx\n",
+                           MOUNT_ROOT_RDONLY, RAMDISK_FLAGS,
+                           ORIG_ROOT_DEV, LOADER_TYPE,
+                           INITRD_START, INITRD_SIZE);
+
 #ifdef CONFIG_BLK_DEV_RAM
         rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
         rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index a3bdc68ef02c..438f1ebcc453 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -4,6 +4,7 @@
 #include <linux/kdebug.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
+#include <linux/uaccess.h>
 #include <asm/system.h>
 
 #ifdef CONFIG_BUG
@@ -21,7 +22,14 @@ static void handle_BUG(struct pt_regs *regs)
 
 int is_valid_bugaddr(unsigned long addr)
 {
-        return addr >= PAGE_OFFSET;
+        unsigned short opcode;
+
+        if (addr < PAGE_OFFSET)
+                return 0;
+        if (probe_kernel_address((u16 *)addr, opcode))
+                return 0;
+
+        return opcode == TRAPA_BUG_OPCODE;
 }
 #endif