Merge branch 'sh/for-2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...

* 'sh/for-2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  serial: sh-sci: Reorder the SCxTDR write after the TDxE clear.
  sh: __copy_user function can corrupt the stack in case of exception
  sh: Fixed the TMU0 reload value on resume
  sh: Don't factor in PAGE_OFFSET for valid_phys_addr_range() check.
  sh: early printk port type fix
  i2c: fix i2c-sh_mobile rx underrun
  sh: Provide a sane valid_phys_addr_range() to prevent TLB reset with PMB.
  usb: r8a66597-hcd: fix wrong data access in SuperH on-chip USB
  fix sci type for SH7723
  serial: sh-sci: fix cannot work SH7723 SCIFA
  sh: Handle fixmap TLB eviction more coherently.

diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 436c28539577ebf75e9d0aefa0514faf2351ec83..65eaae34e753035209455a1916dc68cc4e7b22d6 100644 (file)
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -293,6 +293,10 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
  */
 #define xlate_dev_kmem_ptr(p)  p
 
+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
+int valid_phys_addr_range(unsigned long addr, size_t size);
+int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
+
 #endif /* __KERNEL__ */
 
 #endif /* __ASM_SH_IO_H */

diff --git a/arch/sh/include/asm/pgtable.h b/arch/sh/include/asm/pgtable.h
index 52220d70a096a378f7dd9c4fbbda635177f4b808..b517ae08b9c0f1794a3c72b52aec0cfe181e4294 100644 (file)
--- a/arch/sh/include/asm/pgtable.h
+++ b/arch/sh/include/asm/pgtable.h
@@ -148,6 +148,12 @@ extern void paging_init(void);
 extern void page_table_range_init(unsigned long start, unsigned long end,
                                  pgd_t *pgd);
 
+#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_CPU_SH4) && defined(CONFIG_MMU)
+extern void kmap_coherent_init(void);
+#else
+#define kmap_coherent_init()   do { } while (0)
+#endif
+
 #include <asm-generic/pgtable.h>
 
 #endif /* __ASM_SH_PGTABLE_H */

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index a7412cede534f6cd5e3ef16d060cf1324f8bcd4b..6d9e6972cfc9d8d1cecf57bffb3fe8ab9f72136e 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -119,17 +119,17 @@ static struct plat_sci_port sci_platform_data[] = {
        },{
                .mapbase        = 0xa4e30000,
                .flags          = UPF_BOOT_AUTOCONF,
-               .type           = PORT_SCI,
+               .type           = PORT_SCIFA,
                .irqs           = { 56, 56, 56, 56 },
        },{
                .mapbase        = 0xa4e40000,
                .flags          = UPF_BOOT_AUTOCONF,
-               .type           = PORT_SCI,
+               .type           = PORT_SCIFA,
                .irqs           = { 88, 88, 88, 88 },
        },{
                .mapbase        = 0xa4e50000,
                .flags          = UPF_BOOT_AUTOCONF,
-               .type           = PORT_SCI,
+               .type           = PORT_SCIFA,
                .irqs           = { 109, 109, 109, 109 },
        }, {
                .flags = 0,

diff --git a/arch/sh/kernel/early_printk.c b/arch/sh/kernel/early_printk.c
index 6b7d166694e28fecc3f949b66cb94ae8c2e53950..a952dcf9999d43bedbef8ff275aa3517fb13ab91 100644 (file)
--- a/arch/sh/kernel/early_printk.c
+++ b/arch/sh/kernel/early_printk.c
@@ -75,6 +75,7 @@ static struct console bios_console = {
 #endif
 
 static struct uart_port scif_port = {
+       .type           = PORT_SCIF,
        .mapbase        = CONFIG_EARLY_SCIF_CONSOLE_PORT,
        .membase        = (char __iomem *)CONFIG_EARLY_SCIF_CONSOLE_PORT,
 };
@@ -84,9 +85,9 @@ static void scif_sercon_putc(int c)
        while (((sci_in(&scif_port, SCFDR) & EPK_FIFO_BITS) >= EPK_FIFO_SIZE))
                ;
 
-       sci_out(&scif_port, SCxTDR, c);
        sci_in(&scif_port, SCxSR);
        sci_out(&scif_port, SCxSR, 0xf3 & ~(0x20 | 0x40));
+       sci_out(&scif_port, SCxTDR, c);
 
        while ((sci_in(&scif_port, SCxSR) & 0x40) == 0)
                ;

diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index aaaf90d06b85f89237e776125c27fd43e6eb8064..3c61ddd4d43e0459c3cd4355133a486f328bea50 100644 (file)
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -120,7 +120,7 @@ static void tmu_set_mode(enum clock_event_mode mode,
 {
        switch (mode) {
        case CLOCK_EVT_MODE_PERIODIC:
-               ctrl_outl(ctrl_inl(TMU0_TCNT), TMU0_TCOR);
+               ctrl_outl(tmu_latest_interval[TMU0], TMU0_TCOR);
                break;
        case CLOCK_EVT_MODE_ONESHOT:
                ctrl_outl(0, TMU0_TCOR);

diff --git a/arch/sh/lib/copy_page.S b/arch/sh/lib/copy_page.S
index 5d12e657be34e051b8ba2ab676cf472d58ffe77b..43de7e8e4e17df58849aef36e69dd28895e46bab 100644 (file)
--- a/arch/sh/lib/copy_page.S
+++ b/arch/sh/lib/copy_page.S
@@ -80,6 +80,11 @@ ENTRY(copy_page)
        .section __ex_table, "a";       \
        .long 9999b, 6000f      ;       \
        .previous
+#define EX_NO_POP(...)                 \
+       9999: __VA_ARGS__ ;             \
+       .section __ex_table, "a";       \
+       .long 9999b, 6005f      ;       \
+       .previous
 ENTRY(__copy_user)
        ! Check if small number of bytes
        mov     #11,r0
@@ -139,9 +144,9 @@ EX( mov.b   r1,@r4          )
        bt      1f
 
 2:
-EX(    mov.b   @r5+,r0         )
+EX_NO_POP(     mov.b   @r5+,r0         )
        dt      r6
-EX(    mov.b   r0,@r4          )
+EX_NO_POP(     mov.b   r0,@r4          )
        bf/s    2b
         add    #1,r4
 
@@ -150,7 +155,7 @@ EX( mov.b   r0,@r4          )
 
 # Exception handler:
 .section .fixup, "ax"
-6000:
+6005:
        mov.l   8000f,r1
        mov     r3,r0
        jmp     @r1

diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
index 70e0906023ccc80282d11f2264176c0fa34e907f..f066e76da2044fb9430c80ec2481546ad963c275 100644 (file)
--- a/arch/sh/mm/Makefile_32
+++ b/arch/sh/mm/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the Linux SuperH-specific parts of the memory manager.
 #
 
-obj-y                  := init.o extable_32.o consistent.o
+obj-y                  := init.o extable_32.o consistent.o mmap.o
 
 ifndef CONFIG_CACHE_OFF
 cache-$(CONFIG_CPU_SH2)                := cache-sh2.o

diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index 0d92a8a3ac9a1e312870740b7d982e1eafebb021..9481d0f54efdd8a5fd6e76b86c72f12be906604f 100644 (file)
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -2,7 +2,7 @@
 # Makefile for the Linux SuperH-specific parts of the memory manager.
 #
 
-obj-y                  := init.o consistent.o
+obj-y                  := init.o consistent.o mmap.o
 
 mmu-y                  := tlb-nommu.o pg-nommu.o extable_32.o
 mmu-$(CONFIG_MMU)      := fault_64.o ioremap_64.o tlbflush_64.o tlb-sh5.o \

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 4abf00031daef8521e39d09a1d032f1d937b26af..6cbef8caeb560e69776579d5525bbad028e9aaec 100644 (file)
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -137,6 +137,7 @@ void __init page_table_range_init(unsigned long start, unsigned long end,
 void __init paging_init(void)
 {
        unsigned long max_zone_pfns[MAX_NR_ZONES];
+       unsigned long vaddr;
        int nid;
 
        /* We don't need to map the kernel through the TLB, as
@@ -148,10 +149,15 @@ void __init paging_init(void)
         * check for a null value. */
        set_TTB(swapper_pg_dir);
 
-       /* Populate the relevant portions of swapper_pg_dir so that
+       /*
+        * Populate the relevant portions of swapper_pg_dir so that
         * we can use the fixmap entries without calling kmalloc.
-        * pte's will be filled in by __set_fixmap(). */
-       page_table_range_init(FIXADDR_START, FIXADDR_TOP, swapper_pg_dir);
+        * pte's will be filled in by __set_fixmap().
+        */
+       vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
+       page_table_range_init(vaddr, 0, swapper_pg_dir);
+
+       kmap_coherent_init();
 
        memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 

diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
new file mode 100644 (file)
index 0000000..8837d51
--- /dev/null
+++ b/arch/sh/mm/mmap.c
@@ -0,0 +1,31 @@
+/*
+ * arch/sh/mm/mmap.c
+ *
+ * Copyright (C) 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
+ * for more details.
+ */
+#include <linux/io.h>
+#include <linux/mm.h>
+#include <asm/page.h>
+
+/*
+ * You really shouldn't be using read() or write() on /dev/mem.  This
+ * might go away in the future.
+ */
+int valid_phys_addr_range(unsigned long addr, size_t count)
+{
+       if (addr < __MEMORY_START)
+               return 0;
+       if (addr + count > __pa(high_memory))
+               return 0;
+
+       return 1;
+}
+
+int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
+{
+       return 1;
+}

diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c
index 38870e0fc182af3347ed90986d9fb3b31578fadb..2fe14da1f83909826d352249ba849488103fb4c2 100644 (file)
--- a/arch/sh/mm/pg-sh4.c
+++ b/arch/sh/mm/pg-sh4.c
@@ -7,6 +7,7 @@
  * Released under the terms of the GNU GPL v2.0.
  */
 #include <linux/mm.h>
+#include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/fs.h>
 #include <linux/highmem.h>
@@ -16,6 +17,20 @@
 
 #define CACHE_ALIAS (current_cpu_data.dcache.alias_mask)
 
+#define kmap_get_fixmap_pte(vaddr)                                     \
+       pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))
+
+static pte_t *kmap_coherent_pte;
+
+void __init kmap_coherent_init(void)
+{
+       unsigned long vaddr;
+
+       /* cache the first coherent kmap pte */
+       vaddr = __fix_to_virt(FIX_CMAP_BEGIN);
+       kmap_coherent_pte = kmap_get_fixmap_pte(vaddr);
+}
+
 static inline void *kmap_coherent(struct page *page, unsigned long addr)
 {
        enum fixed_addresses idx;
@@ -34,6 +49,8 @@ static inline void *kmap_coherent(struct page *page, unsigned long addr)
 
        update_mmu_cache(NULL, vaddr, pte);
 
+       set_pte(kmap_coherent_pte - (FIX_CMAP_END - idx), pte);
+
        return (void *)vaddr;
 }
 

diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 640cbb237328196b1b3b22a91fea4b9ee42bf3b1..3384a717fec0d1d864eff63d8d0c798d7edd47cc 100644 (file)
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -318,7 +318,8 @@ static int sh_mobile_i2c_isr_rx(struct sh_mobile_i2c_data *pd)
                } else
                        data = i2c_op(pd, OP_RX, 0);
 
-               pd->msg->buf[real_pos] = data;
+               if (real_pos >= 0)
+                       pd->msg->buf[real_pos] = data;
        } while (0);
 
        pd->pos++;

diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 5c0f32c7fbf6b20c8e20fba1ec32f7e08af29909..165fc010978c2624a7a45730f403b505ed48e726 100644 (file)
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -144,9 +144,9 @@ static void put_char(struct uart_port *port, char c)
                status = sci_in(port, SCxSR);
        } while (!(status & SCxSR_TDxE(port)));
 
-       sci_out(port, SCxTDR, c);
        sci_in(port, SCxSR);            /* Dummy read */
        sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));
+       sci_out(port, SCxTDR, c);
 
        spin_unlock_irqrestore(&port->lock, flags);
 }
@@ -478,10 +478,10 @@ static void sci_transmit_chars(struct uart_port *port)
                return;
        }
 
-       if (port->type == PORT_SCIF)
-               count = scif_txroom(port);
-       else
+       if (port->type == PORT_SCI)
                count = sci_txroom(port);
+       else
+               count = scif_txroom(port);
 
        do {
                unsigned char c;
@@ -510,7 +510,7 @@ static void sci_transmit_chars(struct uart_port *port)
        } else {
                ctrl = sci_in(port, SCSCR);
 
-               if (port->type == PORT_SCIF) {
+               if (port->type != PORT_SCI) {
                        sci_in(port, SCxSR); /* Dummy read */
                        sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));
                }
@@ -536,10 +536,10 @@ static inline void sci_receive_chars(struct uart_port *port)
                return;
 
        while (1) {
-               if (port->type == PORT_SCIF)
-                       count = scif_rxroom(port);
-               else
+               if (port->type == PORT_SCI)
                        count = sci_rxroom(port);
+               else
+                       count = scif_rxroom(port);
 
                /* Don't copy more bytes than there is room for in the buffer */
                count = tty_buffer_request_room(tty, count);
@@ -714,7 +714,7 @@ static inline int sci_handle_breaks(struct uart_port *port)
 
 #if defined(SCIF_ORER)
        /* XXX: Handle SCIF overrun error */
-       if (port->type == PORT_SCIF && (sci_in(port, SCLSR) & SCIF_ORER) != 0) {
+       if (port->type != PORT_SCI && (sci_in(port, SCLSR) & SCIF_ORER) != 0) {
                sci_out(port, SCLSR, 0);
                if (tty_insert_flip_char(tty, 0, TTY_OVERRUN)) {
                        copied++;
@@ -1042,7 +1042,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 
        sci_out(port, SCSCR, 0x00);     /* TE=0, RE=0, CKE1=0 */
 
-       if (port->type == PORT_SCIF)
+       if (port->type != PORT_SCI)
                sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST);
 
        smr_val = sci_in(port, SCSMR) & 3;
@@ -1085,6 +1085,7 @@ static const char *sci_type(struct uart_port *port)
                case PORT_SCI:  return "sci";
                case PORT_SCIF: return "scif";
                case PORT_IRDA: return "irda";
+               case PORT_SCIFA:        return "scifa";
        }
 
        return NULL;
@@ -1112,6 +1113,7 @@ static void sci_config_port(struct uart_port *port, int flags)
                s->init_pins = sci_init_pins_sci;
                break;
        case PORT_SCIF:
+       case PORT_SCIFA:
                s->init_pins = sci_init_pins_scif;
                break;
        case PORT_IRDA:

diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 6163a45f968f4b9aef1b79056f02e2329232e231..9f33b064172e86607e607ae69afbfaf595c21da9 100644 (file)
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -289,18 +289,18 @@
 #define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\
   static inline unsigned int sci_##name##_in(struct uart_port *port)   \
   {                                                                    \
-    if (port->type == PORT_SCI) {                                      \
-      SCI_IN(sci_size, sci_offset)                                     \
-    } else {                                                           \
-      SCI_IN(scif_size, scif_offset);                                  \
+    if (port->type == PORT_SCIF) {                                     \
+      SCI_IN(scif_size, scif_offset)                                   \
+    } else {   /* PORT_SCI or PORT_SCIFA */                            \
+      SCI_IN(sci_size, sci_offset);                                    \
     }                                                                  \
   }                                                                    \
   static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
   {                                                                    \
-    if (port->type == PORT_SCI) {                                      \
-      SCI_OUT(sci_size, sci_offset, value)                             \
-    } else {                                                           \
-      SCI_OUT(scif_size, scif_offset, value);                          \
+    if (port->type == PORT_SCIF) {                                     \
+      SCI_OUT(scif_size, scif_offset, value)                           \
+    } else {   /* PORT_SCI or PORT_SCIFA */                            \
+      SCI_OUT(sci_size, sci_offset, value);                            \
     }                                                                  \
   }
 

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index e27f216361fc1511f6fc6b52d7570536af95a9e6..4e4f1277f3bf487517faf1d2dd4f275a6ddbad7f 100644 (file)
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -155,6 +155,9 @@
 
 #define PORT_SC26XX    82
 
+/* SH-SCI */
+#define PORT_SCIFA     83
+
 #ifdef __KERNEL__
 
 #include <linux/compiler.h>