Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Workaround for a sparse warning in include/asm-mips/mach-tx4927/ioremap.h
  [MIPS] Make show_code static and add __user tag
  [MIPS] Workaround for a sparse warning in include/asm-mips/compat.h
  [MIPS] Add some __user tags
  [MIPS] math-emu minor cleanup
  [MIPS] Kill CONFIG_TX4927BUG_WORKAROUND
  [MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_FB_XPERT98
  [MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_AU1000_SRC_CLK
  [MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_AU1000_USE32K
  [MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_AU1XXX_PSC_SPI
  [CHAR] Delete leftovers of old Alchemy UART driver

8 files changed, 23 insertions, 84 deletions

diff --git a/arch/mips/au1000/common/setup.c b/arch/mips/au1000/common/setup.c
index fdf2b85a69c8..a95b37773196 100644
--- a/arch/mips/au1000/common/setup.c
+++ b/arch/mips/au1000/common/setup.c
@@ -103,12 +103,6 @@ void __init plat_mem_setup(void)
     }
 #endif
 
-#ifdef CONFIG_FB_XPERT98
-        if ((argptr = strstr(argptr, "video=")) == NULL) {
-                argptr = prom_getcmdline();
-                strcat(argptr, " video=atyfb:1024x768-8@70");
-        }
-#endif
 
 #if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000)
         /* au1000 does not support vra, au1500 and au1100 do */
diff --git a/arch/mips/au1000/common/time.c b/arch/mips/au1000/common/time.c
index fa1c62f05515..8fc29982d700 100644
--- a/arch/mips/au1000/common/time.c
+++ b/arch/mips/au1000/common/time.c
@@ -203,11 +203,7 @@ wakeup_counter0_set(int ticks)
 /* I haven't found anyone that doesn't use a 12 MHz source clock,
  * but just in case.....
  */
-#ifdef CONFIG_AU1000_SRC_CLK
-#define AU1000_SRC_CLK  CONFIG_AU1000_SRC_CLK
-#else
 #define AU1000_SRC_CLK  12000000
-#endif
 
 /*
  * We read the real processor speed from the PLL.  This is important
@@ -247,33 +243,8 @@ unsigned long cal_r4koff(void)
                 au_writel (0, SYS_TOYWRITE);
                 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S);
 
-#if defined(CONFIG_AU1000_USE32K)
-                {
-                        unsigned long start, end, count;
-
-                        start = au_readl(SYS_RTCREAD);
-                        start += 2;
-                        /* wait for the beginning of a new tick
-                        */
-                        while (au_readl(SYS_RTCREAD) < start);
-
-                        /* Start r4k counter.
-                        */
-                        write_c0_count(0);
-
-                        /* Wait 0.5 seconds.
-                        */
-                        end = start + (32768 / trim_divide)/2;
-
-                        while (end > au_readl(SYS_RTCREAD));
-
-                        count = read_c0_count();
-                        cpu_speed = count * 2;
-                }
-#else
                 cpu_speed = (au_readl(SYS_CPUPLL) & 0x0000003f) *
                         AU1000_SRC_CLK;
-#endif
         }
         else {
                 /* The 32KHz oscillator isn't running, so assume there
diff --git a/arch/mips/au1000/pb1200/board_setup.c b/arch/mips/au1000/pb1200/board_setup.c
index 043302b7fe58..eea2092bde8d 100644
--- a/arch/mips/au1000/pb1200/board_setup.c
+++ b/arch/mips/au1000/pb1200/board_setup.c
@@ -131,14 +131,7 @@ void __init board_setup(void)
         /* The Pb1200 development board uses external MUX for PSC0 to
         support SMB/SPI. bcsr->resets bit 12: 0=SMB 1=SPI
         */
-#if defined(CONFIG_AU1XXX_PSC_SPI) && defined(CONFIG_I2C_AU1550)
-        #error I2C and SPI are mutually exclusive. Both are physically connected to PSC0.\
-                        Refer to Pb1200/Db1200 documentation.
-#elif defined( CONFIG_AU1XXX_PSC_SPI )
-        bcsr->resets |= BCSR_RESETS_PCS0MUX;
-        /*Hard Coding Value to enable Temp Sensors [bit 14] Value for SOC Au1200. Pls refer documentation*/
-          bcsr->resets =0x900f;
-#elif defined( CONFIG_I2C_AU1550 )
+#ifdef CONFIG_I2C_AU1550
         bcsr->resets &= (~BCSR_RESETS_PCS0MUX);
 #endif
         au_sync();
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index 76fd3f22c766..6b5df8bfab85 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -22,7 +22,8 @@
  */
 int __compute_return_epc(struct pt_regs *regs)
 {
-        unsigned int *addr, bit, fcr31, dspcontrol;
+        unsigned int __user *addr;
+        unsigned int bit, fcr31, dspcontrol;
         long epc;
         union mips_instruction insn;
 
@@ -33,7 +34,7 @@ int __compute_return_epc(struct pt_regs *regs)
         /*
          * Read the instruction
          */
-        addr = (unsigned int *) epc;
+        addr = (unsigned int __user *) epc;
         if (__get_user(insn.word, addr)) {
                 force_sig(SIGSEGV, current);
                 return -EFAULT;
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 5e9fa83c4ef0..37c562c4c817 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -131,7 +131,7 @@ static void show_stacktrace(struct task_struct *task, struct pt_regs *regs)
         const int field = 2 * sizeof(unsigned long);
         long stackdata;
         int i;
-        unsigned long *sp = (unsigned long *)regs->regs[29];
+        unsigned long __user *sp = (unsigned long __user *)regs->regs[29];
 
         printk("Stack :");
         i = 0;
@@ -187,7 +187,7 @@ void dump_stack(void)
 
 EXPORT_SYMBOL(dump_stack);
 
-void show_code(unsigned int *pc)
+static void show_code(unsigned int __user *pc)
 {
         long i;
 
@@ -305,7 +305,7 @@ void show_registers(struct pt_regs *regs)
         printk("Process %s (pid: %d, threadinfo=%p, task=%p)\n",
                 current->comm, current->pid, current_thread_info(), current);
         show_stacktrace(current, regs);
-        show_code((unsigned int *) regs->cp0_epc);
+        show_code((unsigned int __user *) regs->cp0_epc);
         printk("\n");
 }
 
@@ -865,7 +865,7 @@ asmlinkage void do_mcheck(struct pt_regs *regs)
                 dump_tlb_all();
         }
 
-        show_code((unsigned int *) regs->cp0_epc);
+        show_code((unsigned int __user *) regs->cp0_epc);
 
         /*
          * Some chips may have other causes of machine check (e.g. SB1
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index d7f05b0abe17..17419e11ecad 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -205,7 +205,7 @@ static int isBranchInstr(mips_instruction * i)
 static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
 {
         mips_instruction ir;
-        void * emulpc, *contpc;
+        unsigned long emulpc, contpc;
         unsigned int cond;
 
         if (get_user(ir, (mips_instruction __user *) xcp->cp0_epc)) {
@@ -230,7 +230,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
                  * Linux MIPS branch emulator operates on context, updating the
                  * cp0_epc.
                  */
-                emulpc = (void *) (xcp->cp0_epc + 4);   /* Snapshot emulation target */
+                emulpc = xcp->cp0_epc + 4;      /* Snapshot emulation target */
 
                 if (__compute_return_epc(xcp)) {
 #ifdef CP1DBG
@@ -244,12 +244,12 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
                         return SIGBUS;
                 }
                 /* __compute_return_epc() will have updated cp0_epc */
-                contpc = (void *)  xcp->cp0_epc;
+                contpc = xcp->cp0_epc;
                 /* In order not to confuse ptrace() et al, tweak context */
-                xcp->cp0_epc = (unsigned long) emulpc - 4;
+                xcp->cp0_epc = emulpc - 4;
         } else {
-                emulpc = (void *)  xcp->cp0_epc;
-                contpc = (void *) (xcp->cp0_epc + 4);
+                emulpc = xcp->cp0_epc;
+                contpc = xcp->cp0_epc + 4;
         }
 
       emul:
@@ -427,8 +427,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
                                  * instruction
                                  */
                                 xcp->cp0_epc += 4;
-                                contpc = (void *)
-                                        (xcp->cp0_epc +
+                                contpc = (xcp->cp0_epc +
                                         (MIPSInst_SIMM(ir) << 2));
 
                                 if (get_user(ir,
@@ -462,7 +461,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
                                  * Single step the non-cp1
                                  * instruction in the dslot
                                  */
-                                return mips_dsemul(xcp, ir, (unsigned long) contpc);
+                                return mips_dsemul(xcp, ir, contpc);
                         }
                         else {
                                 /* branch not taken */
@@ -521,7 +520,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
         }
 
         /* we did it !! */
-        xcp->cp0_epc = (unsigned long) contpc;
+        xcp->cp0_epc = contpc;
         xcp->cp0_cause &= ~CAUSEF_BD;
 
         return 0;
diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c
index ea6ba7248489..653e325849e4 100644
--- a/arch/mips/math-emu/dsemul.c
+++ b/arch/mips/math-emu/dsemul.c
@@ -54,8 +54,7 @@ struct emuframe {
 int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc)
 {
         extern asmlinkage void handle_dsemulret(void);
-        mips_instruction *dsemul_insns;
-        struct emuframe *fr;
+        struct emuframe __user *fr;
         int err;
 
         if (ir == 0) {          /* a nop is easy */
@@ -87,8 +86,8 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc)
          */
 
         /* Ensure that the two instructions are in the same cache line */
-        dsemul_insns = (mips_instruction *) ((regs->regs[29] - sizeof(struct emuframe)) & ~0x7);
-        fr = (struct emuframe *) dsemul_insns;
+        fr = (struct emuframe __user *)
+                ((regs->regs[29] - sizeof(struct emuframe)) & ~0x7);
 
         /* Verify that the stack pointer is not competely insane */
         if (unlikely(!access_ok(VERIFY_WRITE, fr, sizeof(struct emuframe))))
@@ -113,12 +112,13 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc)
 
 int do_dsemulret(struct pt_regs *xcp)
 {
-        struct emuframe *fr;
+        struct emuframe __user *fr;
         unsigned long epc;
         u32 insn, cookie;
         int err = 0;
 
-        fr = (struct emuframe *) (xcp->cp0_epc - sizeof(mips_instruction));
+        fr = (struct emuframe __user *)
+                (xcp->cp0_epc - sizeof(mips_instruction));
 
         /*
          * If we can't even access the area, something is very wrong, but we'll
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
index a0c11efeaeeb..40c7c3eeafaf 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
@@ -138,7 +138,6 @@ extern void toshiba_rbtx4927_irq_setup(void);
 char *prom_getcmdline(void);
 
 #ifdef CONFIG_PCI
-#define CONFIG_TX4927BUG_WORKAROUND
 #undef TX4927_SUPPORT_COMMAND_IO
 #undef  TX4927_SUPPORT_PCI_66
 int tx4927_cpu_clock = 100000000;       /* 100MHz */
@@ -669,15 +668,7 @@ void tx4927_pci_setup(void)
 
         /* PCI->GB mappings (MEM 16MB) -not used */
         tx4927_pcicptr->p2gm1plbase = 0xffffffff;
-#ifdef CONFIG_TX4927BUG_WORKAROUND
-        /*
-         * TX4927-PCIC-BUG: P2GM1PUBASE must be 0
-         * if P2GM0PUBASE was 0.
-         */
-        tx4927_pcicptr->p2gm1pubase = 0;
-#else
         tx4927_pcicptr->p2gm1pubase = 0xffffffff;
-#endif
         tx4927_pcicptr->p2gmgbase[1] = 0;
 
         /* PCI->GB mappings (MEM 1MB) -not used */
@@ -910,16 +901,6 @@ void __init toshiba_rbtx4927_setup(void)
         if (tx4927_ccfg_toeon)
                 tx4927_ccfgptr->ccfg |= TX4927_CCFG_TOE;
 
-        /* SDRAMC fixup */
-#ifdef CONFIG_TX4927BUG_WORKAROUND
-        /*
-         * TX4927-BUG: INF 01-01-18/ BUG 01-01-22
-         * G-bus timeout error detection is incorrect
-         */
-        if (tx4927_ccfg_toeon)
-                tx4927_sdramcptr->tr |= 0x02000000;     /* RCD:3tck */
-#endif
-
         tx4927_pci_setup();
         if (tx4927_using_backplane == 1)
                 printk("backplane board IS installed\n");